• No results found

Caesar II Tutorial1-Libre

N/A
N/A
Protected

Academic year: 2021

Share "Caesar II Tutorial1-Libre"

Copied!
1228
0
0

Loading.... (view fulltext now)

Full text

(1)

CAESAR II

User's Guide

Version 2014 (7.0)

April 2014

(2)

2

CAESAR II User's Guide

Copyright

Copyright © 1985-2014 Intergraph CAS, Inc. All Rights Reserved. Intergraph is part of Hexagon.

Including software, file formats, and audiovisual displays; may be used pursuant to applicable software license agreement; contains confidential and proprietary information of Intergraph and/or third parties which is protected by copyright law, trade secret law, and international treaty, and may not be provided or otherwise made available without proper authorization from Intergraph Corporation. Contains RealDWG™ by Autodesk, Inc. Copyright © 1998-2013 Autodesk, Inc. All rights reserved.

U.S. Government Restricted Rights Legend

Use, duplication, or disclosure by the government is subject to restrictions as set forth below. For civilian agencies: This was developed at private expense and is "restricted computer software" submitted with restricted rights in accordance with subparagraphs (a) through (d) of the Commercial Computer Software - Restricted Rights clause at 52.227-19 of the Federal Acquisition Regulations ("FAR") and its successors, and is unpublished and all rights are reserved under the copyright laws of the United States. For units of the Department of Defense ("DoD"): This is "commercial computer software" as defined at DFARS 252.227-7014 and the rights of the Government are as specified at DFARS 227.7202-3.

Unpublished - rights reserved under the copyright laws of the United States. Intergraph Corporation

300 Intergraph Way Huntsville, AL 35813

Documentation

Documentation shall mean, whether in electronic or printed form, User's Guides, Installation Guides, Reference Guides, Administrator's Guides, Customization Guides, Programmer's Guides, Configuration Guides and Help Guides delivered with a particular software product.

Other Documentation

Other Documentation shall mean, whether in electronic or printed form and delivered with software or on Intergraph Smart Support, SharePoint, or box.net, any documentation related to work processes, workflows, and best practices that is provided by Intergraph as guidance for using a software product.

Terms of Use

a. Use of a software product and Documentation is subject to the End User License Agreement ("EULA") delivered with the software product unless the Licensee has a valid signed license for this software product with Intergraph Corporation. If the Licensee has a valid signed license for this software product with Intergraph Corporation, the valid signed license shall take precedence and govern the use of this software product and Documentation. Subject to the terms contained within the applicable license agreement, Intergraph Corporation gives Licensee permission to print a reasonable number of copies of the Documentation as defined in the applicable license agreement and delivered with the software product for Licensee's internal, non-commercial use. The Documentation may not be printed for resale or redistribution.

b. For use of Documentation or Other Documentation where end user does not receive a EULA or does not have a valid license agreement with Intergraph, Intergraph grants the Licensee a non-exclusive license to use the Documentation or Other Documentation for Licensee’s internal non-commercial use. Intergraph Corporation gives Licensee permission to print a reasonable number of copies of Other Documentation for Licensee’s internal, non-commercial. The Other Documentation may not be printed for resale or redistribution. This license contained in this subsection b) may be terminated at any time and for any reason by Intergraph Corporation by giving written notice to Licensee.

Disclaimer of Warranties

Except for any express warranties as may be stated in the EULA or separate license or separate terms and conditions, Intergraph Corporation disclaims any and all express or implied warranties including, but not limited to the implied warranties of merchantability and fitness for a particular purpose and nothing stated in, or implied by, this document or its contents shall be considered or deemed a modification or amendment of such disclaimer. Intergraph believes the information in this publication is accurate as of its

publication date.

The information and the software discussed in this document are subject to change without notice and are subject to applicable technical product descriptions. Intergraph Corporation is not responsible for any error that may appear in this document.

The software, Documentation and Other Documentation discussed in this document are furnished under a license and may be used or copied only in accordance with the terms of this license. THE USER OF THE SOFTWARE IS EXPECTED TO MAKE THE FINAL EVALUATION AS TO THE USEFULNESS OF THE SOFTWARE IN HIS OWN ENVIRONMENT.

Intergraph is not responsible for the accuracy of delivered data including, but not limited to, catalog, reference and symbol data. Users should verify for themselves that the data is accurate and suitable for their project work.

(3)

CAESAR II User's Guide

3

IN NO EVENT WILL INTERGRAPH CORPORATION BE LIABLE FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL INCIDENTAL, SPECIAL, OR PUNITIVE DAMAGES, INCLUDING BUT NOT LIMITED TO, LOSS OF USE OR PRODUCTION, LOSS OF

REVENUE OR PROFIT, LOSS OF DATA, OR CLAIMS OF THIRD PARTIES, EVEN IF INTERGRAPH CORPORATION HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

UNDER NO CIRCUMSTANCES SHALL INTERGRAPH CORPORATION’S LIABILITY EXCEED THE AMOUNT THAT INTERGRAPH CORPORATION HAS BEEN PAID BY LICENSEE UNDER THIS AGREEMENT AT THE TIME THE CLAIM IS MADE. EXCEPT WHERE PROHIBITED BY APPLICABLE LAW, NO CLAIM, REGARDLESS OF FORM, ARISING OUT OF OR IN CONNECTION WITH THE SUBJECT MATTER OF THIS DOCUMENT MAY BE BROUGHT BY LICENSEE MORE THAN TWO (2) YEARS AFTER THE EVENT GIVING RISE TO THE CAUSE OF ACTION HAS OCCURRED.

IF UNDER THE LAW RULED APPLICABLE ANY PART OF THIS SECTION IS INVALID, THEN INTERGRAPH LIMITS ITS LIABILITY TO THE MAXIMUM EXTENT ALLOWED BY SAID LAW.

Export Controls

Intergraph Corporation’s software products and any third-party Software Products obtained from Intergraph Corporation, its subsidiaries, or distributors (including any Documentation, Other Documentation or technical data related to these products) are subject to the export control laws and regulations of the United States. Diversion contrary to U.S. law is prohibited. These Software Products, and the direct product thereof, must not be exported or re-exported, directly or indirectly (including via remote access) under the following circumstances:

a. To Cuba, Iran, North Korea, Sudan, or Syria, or any national of these countries.

b. To any person or entity listed on any U.S. government denial list, including but not limited to, the U.S. Department of Commerce Denied Persons, Entities, and Unverified Lists, http://www.bis.doc.gov/complianceandenforcement/liststocheck.htm, the U.S. Department of Treasury Specially Designated Nationals List, http://www.treas.gov/offices/enforcement/ofac/, and the U.S. Department of State Debarred List, http://www.pmddtc.state.gov/compliance/debar.html.

c. To any entity when Licensee knows, or has reason to know, the end use of the Software Product is related to the design, development, production, or use of missiles, chemical, biological, or nuclear weapons, or other un-safeguarded or sensitive nuclear uses.

d. To any entity when Licensee knows, or has reason to know, that an illegal reshipment will take place.

Any questions regarding export or re-export of these Software Products should be addressed to Intergraph Corporation’s Export Compliance Department, Huntsville, Alabama 35894, USA.

Trademarks

Intergraph, the Intergraph logo, Intergraph Smart, PDS, SmartPlant, SmartMarine, FrameWorks, I-Sketch, IntelliShip, ISOGEN, SmartSketch, SPOOLGEN, SupportManager, and SupportModeler are trademarks or registered trademarks of Intergraph Corporation or its subsidiaries in the United States and other countries. Microsoft and Windows are registered trademarks of Microsoft Corporation. MicroStation is a registered trademark of Bentley Systems, Inc. Other brands and product names are trademarks of their respective owners.

(4)
(5)

CAESAR II User's Guide

5

Contents

What's New in CAESAR II ... 19

Introduction ... 23

About the CAESAR II Documentation ... 24

Software Support/User Assistance ... 24

Software Revision Procedures ... 25

Updates and License Types ... 27

Getting Started ... 29

Starting CAESAR II ... 29

Understanding Jobs ... 30

Basic Operation... 30

Create a new job ... 30

Piping Input generation... 31

Model Error Checking ... 34

Building Load Cases ... 35

Run a static analysis ... 36

Static Output Review ... 36

Main Menu ... 37 File Menu ... 37 Input Menu ... 40 Analysis Menu ... 40 Output Menu ... 41 Language Menu ... 41 Tools Menu ... 42 Diagnostics Menu ... 42 ESL Menu ... 43 View Menu ... 43 Help Menu ... 43

Configuration and Environment ... 45

CAESAR II Configuration File Generation ... 45

Computational Control ... 47

Convergence Tolerances ... 47

Input Spreadsheet Defaults ... 49

Miscellaneous ... 51 Database Definitions ... 53 Databases ... 54 ODBC Settings ... 58 FRP Pipe Properties ... 59 Material Properties ... 60 Settings ... 62 Geometry Directives ... 63 Bends... 63 Input Items ... 65

(6)

6

CAESAR II User's Guide

Graphic Settings... 66 Advanced Options ... 67 Background Colors ... 68 Component Colors ... 69 Marker Options ... 71 Miscellaneous Options ... 71 Output Colors ... 75 Text Options ... 76 Visual Options ... 77 Miscellaneous Options ... 80 Input Items ... 80 Output Items ... 82

System Level Items ... 83

SIFs and Stresses ... 85

Advanced Settings ... 85 Code-Specific Settings ... 86 General Settings ... 89 Legacy Settings ... 95 Set/Change Password ... 96 New Password ... 96

Access Protected Data ... 97

Change Password ... 97

Remove Password ... 97

Piping Input Reference ... 99

Classic Piping Input Dialog Box ... 100

Navigating the Classic Piping Input Dialog Box using the Function Keys ... 101

Help Screens and Units ... 101

Node Numbers ... 101 Deltas... 103 Pipe Sizes ... 106 Operating Conditions ... 109 Component Information ... 113 Boundary Conditions ... 148 Loading Conditions ... 185 Materials ... 191

Material Elastic Properties ... 217

Densities ... 219 Line Number ... 223 Available Commands ... 223 File Menu ... 224 Edit Menu ... 229 Model Menu ... 236 Environment Menu ... 281 Global Menu ... 323 Options Menu ... 329 View Menu ... 334 Tools Menu ... 352

(7)

CAESAR II User's Guide

7

3D Modeler ... 361

3D Graphics Configuration ... 364

Changing the Model Display ... 366

Manipulating the Toolbar ... 367

Highlighting Graphics ... 367

Updating Properties from the 3D Model ... 370

Displaying Displacements, Forces, Uniform Loads, and Wind/Wave Loads ... 370

Performing Block Operations ... 372

Limiting the Display ... 373

Saving an Image for Later Presentation ... 374

Walking Through the Model ... 376

Moving Elements ... 376 S3D/SPR Model View ... 379 Load S3D/SPR Model ... 379 Show/Hide S3D/SPR Model ... 383 Dim S3D/SPR Model ... 384 S3D/SPR Visibility Options ... 384

Structural Steel Modeler ... 387

Overview ... 387

Structural Steel Graphics ... 392

Sample Input ... 393

Structural Steel Example #1 ... 393

Structural Steel Example #2 ... 403

Structural Steel Example #3 ... 412

The Structural Modeler Window ... 419

Model Setup using the Structural Steel Wizard ... 420

Insert Menu ... 422

Before Current Element ... 422

After the Current Element ... 422

At End of Model ... 422 Commands Menu ... 422 Node ... 422 NFill... 423 NGen ... 424 Fix ... 426 Elem... 429 EFill ... 430 EGen... 432 EDim ... 436 Angle... 438 Unif ... 439 Orient ... 441 Load ... 443 Wind Loads ... 444 GLoads ... 446 MatId ... 446 SecId... 448

Free End Connections - FREE ... 450

Beams... 452

(8)

8

CAESAR II User's Guide

Columns ... 457 Default ... 460 Comment ... 460 Vertical ... 461 Unit ... 462 List Options ... 462 Structural Databases ... 463 AISC 1977 Database ... 463 AISC 1989 Database ... 470 Australian 1990 Database ... 476 German 1991 Database ... 477

South African 1992 Database ... 480

Korean 1990 Database... 480

UK 1993 Database ... 482

Buried Pipe Modeler ... 483

Buried Pipe Modeler Window ... 485

From Node ... 486

To Node ... 486

Soil Model No. ... 487

From/To End Mesh ... 487

User-Defined Lateral "K" ... 488

Ultimate Lateral Load ... 488

User-Defined Axial Stif ... 488

Ultimate Axial Load ... 489

User-Defined Upward Stif ... 489

Ultimate Upward Load ... 489

User-Defined Downward Stif ... 489

Ultimate Downward Load ... 490

Soil Models ... 490

CAESAR II Basic Model ... 491

American Lifelines Alliance Soil Model ... 492

Basic Soil Modeler Dialog Box ... 496

Model an underground piping system ... 503

Buried Pipe Example ... 504

Static Analysis ... 511

Static Analysis Overview ... 511

Error Checking ... 511

Static Load Case Editor ... 513

Building Static Load Cases ... 514

Providing Wind Data ... 524

Providing Wave Data ... 525

Execution of Static Analysis ... 526

Definition of a Load Case ... 528

Controlling Results ... 532

Static Analysis Dialog Box ... 533

Load Case Editor Tab (Static Analysis Dialog Box) ... 533

Load Case Options Tab (Static Analysis Dialog Box) ... 537

Wind Loads Tab (Static Analysis Dialog Box) ... 543

(9)

CAESAR II User's Guide

9

Static Output Processor ... 563

Work with Reports ... 564

Filter Reports ... 565

Print or Save Reports to File Notes ... 566

Report Options ... 567

Displacements ... 568

Restraints ... 569

Restraint Report - In Local Element Coordinates ... 570

Restraint Summary ... 572

Nozzle Check Report ... 573

Flange Reports ... 573

Global Element Forces ... 575

Local Element Forces ... 575

Stresses ... 576

Stress Summary ... 577

Code Compliance Report ... 578

Cumulative Usage Report ... 579

General Computed Results ... 579

Load Case Report ... 580

Hanger Table with Text ... 581

Input Echo ... 582

Miscellaneous Data ... 583

Warnings ... 584

Output Viewer Wizard ... 585

Report Template Editor ... 586

Available Commands ... 588

View Menu ... 589

Options Menu ... 594

Plot Options Menu ... 601

Plot View Menu ... 607

Event Viewer Dialog Box ... 608

Dynamic Analysis ... 609

Dynamic Loads in Piping Systems... 609

Random ... 611

Harmonic ... 611

Impulse ... 613

Model Modifications for Dynamic Analysis ... 615

Dynamic Analysis Workflow ... 616

The Dynamic Analysis Window ... 617

Modal Analysis ... 618

Harmonic Analysis ... 619

Earthquake Response Spectrum Analysis ... 619

Relief Loads and Water Hammer/Slug Flow Spectra Analysis ... 619

Time History Analysis ... 620

Excitation Frequencies Tab ... 620

Starting Frequency ... 621

Ending Frequency ... 621

Increment ... 621

(10)

10

CAESAR II User's Guide

Harmonic Forces Tab ... 622

Force... 624 Direction ... 624 Phase... 624 Start Node ... 624 Stop Node ... 625 Increment ... 625

Harmonic Displacements Tab ... 626

Displacement ... 627 Direction ... 627 Phase... 627 Start Node ... 628 Stop Node ... 628 Increment ... 628

Spectrum/Time History Definitions Tab ... 629

Name ... 630 Range Type ... 631 Ordinate Type ... 632 Range Interpol ... 632 Ordinate Interpol ... 632 Examples ... 632

Spectrum/Time History Load Cases Tab ... 634

Spectrum/Time History Profile ... 636

Factor... 636 Dir. ... 636 Start Node ... 637 Stop Node ... 638 Increment ... 638 Anchor Movement ... 638 Force Set # ... 638

Force Sets Tab ... 639

Examples ... 644

Static/Dynamic Combinations Tab ... 649

Load Case ... 650

Factor... 650

Examples ... 650

Lumped Masses Tab ... 654

Mass ... 654 Direction ... 654 Start Node ... 655 Stop Node ... 655 Increments ... 655 Snubbers Tab... 656 Stiffness ... 656 Direction ... 656 Node ... 656 CNode... 656

Control Parameters Tab ... 658

Analysis Type (Harmonic/Spectrum/Modes/Range/TimeHist) ... 659

Static Load Case for Nonlinear Restraint Status ... 670

Max. No. of Eigenvalues Calculated ... 671

Frequency Cutoff (HZ) ... 673

(11)

CAESAR II User's Guide

11

Load Duration (DSRSS) (sec) ... 675

Damping (DSRSS) (ratio of critical) ... 675

ZPA (Reg. Guide 1.60/UBC - g's) <or> # Time History Output Cases... 676

Re-use Last Eigensolution (Frequencies and Mode Shapes) ... 679

Spatial or Modal Combination First ... 679

Spatial Combination Method (SRSS/ABS) ... 680

Modal Combination Method (Group/10%/DSRSS/ABS/SRSS) ... 680

Include Pseudostatic (Anchor Movement) Components (Y/N) ... 683

Include Missing Mass Components ... 684

Pseudostatic (Anchor Movement) Comb. Method (SRSS/ABS) ... 686

Missing Mass Combination Method (SRSS/ABS) ... 686

Directional Combination Method (SRSS/ABS) ... 686

Mass Model (LUMPED/CONSISTENT) ... 687

Sturm Sequence Check on Computed Eigenvalues ... 687

Advanced Tab ... 688

Estimated Number of Significant Figures in Eigenvalues ... 688

Jacobi Sweep Tolerance ... 689

Decomposition Singularity Tolerance ... 689

Subspace Size (0-Not Used) ... 689

No. to Converge Before Shift Allowed (0 - Not Used) ... 690

No. of Iterations Per Shift (0 - Pgm computed) ... 690

% of Iterations Per Shift Before Orthogonalization ... 691

Force Orthogonalization After Convergence (Y/N) ... 691

Use Out-of-Core Eigensolver (Y/N) ... 691

Frequency Array Spaces ... 691

Directive Builder ... 692

Enter/Edit Spectrum Data ... 693

Range ... 693 Ordinate ... 694 DLF/Spectrum Generator ... 694 Spectrum Name ... 694 Spectrum Type ... 695 Generate Spectrum ... 703

Relief Load Synthesis ... 704

Relief Load Synthesis for Gases Greater Than 15 psig ... 704

Relief Load Synthesis for Liquids ... 707

Example Output - Gas Relief Load Synthesis ... 710

Example Output - Liquid Relief Load Synthesis ... 714

Analysis Results ... 716

Modal ... 717

Harmonic ... 718

Spectrum ... 718

Time History ... 719

Dynamic Output Processing ... 721

Dynamic Output Window ... 721

Open a Job ... 723

Enter a Report Title ... 723

View Load Cases ... 724

Send Reports to Microsoft Word ... 724

(12)

12

CAESAR II User's Guide

Dynamic Output Animation Window ... 736

Save Animation to File... 737

Animation of Static Results -Displacements... 737

Animation of Dynamic Results –Modal/Spectrum ... 738

Animation of Dynamic Results – Harmonic ... 738

Animation of Dynamic Results – Time History ... 738

Relief Load Synthesis Results ... 739

Generate Stress Isometrics Overview ... 741

Add input feature information ... 742

Add output feature information ... 744

Add custom annotations for nodal features ... 745

Add custom annotations for elemental features ... 747

Set Project Information ... 749

Configure annotation preferences... 750

Configure isometric drawing split points ... 752

Create a drawing using the default style ... 754

Create a drawing using an existing style ... 755

Create a drawing using a new style ... 756

Create and save an annotation template ... 758

Apply a Template ... 758

Stress Isometric Tutorials ... 759

Tutorial A - Creating a stress isometric drawing using the default drawing style ... 759

Tutorial B - Adding annotations for Input and Output features ... 762

Tutorial C - Adding custom annotations and configure annotations preferences ... 764

Tutorial D - Creating and applying a stress iso template ... 768

Equipment Component and Compliance ... 771

Intersection Stress Intensification Factors ... 772

Intersection Type ... 775

Piping Code ID ... 775

Header Pipe Outside Diameter ... 776

Header Pipe Wall Thickness ... 776

Branch Pipe Outside Diameter ... 776

Branch Pipe Wall Thickness ... 777

Branch Largest Diameter at Intersection ... 777

Pad Thickness ... 777

Intersection Crotch Radius ... 777

Intersection Crotch Thickness ... 778

Extrusion Crotch Radius ... 778

Weld Type ... 778

Ferritic Material ... 778

Design Temperature ... 778

Bend Stress Intensification Factors ... 778

Bend Tab ... 780

Trunnion Tab ... 784

WRC 107/297 Vessel/Nozzle Stresses ... 786

WRC Bulletin 107(537) ... 788

(13)

CAESAR II User's Guide

13

Flange Leakage/Stress Calculations ... 791

Flange Tab ... 793

Bolts and Gasket Tab ... 797

Material Data Tab ... 805

Loads Tab ... 808

Flange Rating ... 809

Pipeline Remaining Strength Calculations (B31G) ... 811

Data Tab ... 814

Measurements Tab ... 815

Expansion Joint Rating ... 816

Geometry ... 820

Displacements and Rotations ... 821

Allowables ... 821

Structural Steel Checks - AISC ... 821

Global Input ... 824

Local Member Data Tab ... 826

NEMA SM23 (Steam Turbines) ... 829

NEMA Turbine Example ... 831

NEMA Input Data Tab ... 834

API 610 (Centrifugal Pumps) ... 837

Input Data Tab ... 843

Suction Nozzle Tab ... 846

Discharge Nozzle Tab ... 847

API 617 (Centrifugal Compressors) ... 849

API 617 Input Tab ... 850

Suction Nozzle Tab ... 852

Discharge Nozzle Tab ... 853

Extraction Nozzle #1 Tab ... 855

Extraction Nozzle #2 Tab ... 856

API 661 (Air Cooled Heat Exchangers) ... 858

Input Data Tab ... 861

Inlet Nozzle Tab ... 862

Outlet Nozzle Tab ... 863

Heat Exchange Institute ... 864

HEI Nozzle ... 866

API 560 (Fired Heaters for General Refinery Services)... 867

API 560 Input Data Tab ... 869

Technical Discussions ... 871

Rigid Element Application ... 871

Rigid Weight ... 871

Fluid Weight in Rigid Elements ... 872

Insulation Weight on Rigid Elements ... 872

In-Line Flange Evaluation ... 873

Kellogg Equivalent Pressure Method ... 873

ASME NC-3658.3 Calculation Method for B16.5 Flanged Joints with High Strength Bolting ... 873

Cold Spring ... 874

Expansion Joints ... 876

(14)

14

CAESAR II User's Guide

Hanger Sizing Algorithm ... 878

Spring Design Requirements ... 879

Restrained Weight Case... 879

Pre-Selection Load Case 2 – Setting Hanger Deflection through the Operating Case ... 880

Post-Selection Load Case (Optional) – Setting the Actual Installed (Cold) Load ... 880

Create Spring Load Cases ... 881

Constant Effort Support ... 882

Including the Spring Hanger Stiffness in the Design Algorithm... 882

Other Notes on Hanger Sizing ... 882

Class 1 Branch Flexibilities ... 883

Modeling Friction Effects ... 885

Nonlinear Code Compliance ... 886

Sustained Stresses and Nonlinear Restraints ... 887

Notes on Occasional Load Cases ... 889

Static Seismic Inertial Loads ... 890

Wind Loads ... 891

Elevation ... 893

Hydrodynamic (Wave and Current) Loading ... 893

Ocean Wave Particulars ... 894

Applicable Wave Theory Determination ... 895

Pseudo-Static Hydrodynamic Loading ... 896

Airy Wave Theory Implementation ... 897

STOKES 5th Order Wave Theory Implementation ... 897

Stream Function Wave Theory Implementation ... 898

Ocean Currents ... 898

Technical Notes on CAESAR II Hydrodynamic Loading ... 898

Input: Specifying Hydrodynamic Parameters in CAESAR II ... 901

Current Data ... 903

Wave Data ... 903

Seawater Data ... 904

Piping Element Data ... 905

References ... 905

Evaluating Vessel Stresses ... 906

ASME Section VIII Division 2-Elastic Nozzle Comprehensive Analysis (pre-2007) ... 906

Elastic Analyses of Shells near Nozzles Using WRC 107 ... 908

Description of Alternate Simplified ASME Section VIII Division 2 Elastic Nozzle Analysis pre-2007 ... 909

ASME Section VIII Division 2-Elastic Nozzle Simplified Analysis pre-2007 ... 910

Inclusion of Missing Mass Correction ... 910

Maximum Stress Versus Extracted Loads ... 915

Fatigue Analysis Using CAESAR II... 916

Fatigue Basics ... 916

Fatigue Analysis of Piping Systems ... 917

Static Analysis Fatigue Example ... 918

Fatigue Capabilities in Dynamic Analysis ... 925

Creating the .FAT Files... 926

Calculation of Fatigue Stresses ... 927

Pipe Stress Analysis of FRP Piping ... 929

Underlying Theory ... 929

(15)

CAESAR II User's Guide

15

Code Compliance Considerations ... 951

General Comments on Configuration Settings' Effect on Piping Code Calculations ... 951

Code-Specific Notes ... 956

Local Coordinates ... 991

Other Global Coordinate Systems ... 993

The Right Hand Rule ... 993

Pipe Stress Analysis Coordinate Systems ... 995

Defining a Model ... 998

Using Local Coordinates ... 1000

CAESAR II Local Coordinate Definitions... 1000

Applications Using Global and Local Coordinates ... 1003

Restraint Data in Local Element Coordinates ... 1009

Transforming from Global to Local ... 1009

Frequently Asked Questions ... 1010

Miscellaneous Processors ... 1013

Accounting ... 1013

Accounting System Activation ... 1015

Batch Stream Processing ... 1018

Define Jobs to Run ... 1018

Analyze Specified Jobs ... 1018

CAESAR II Fatal Error Processing ... 1018

Units File Operations ... 1019

Create/Review Units ... 1020

Change Model Units ... 1022

Material Database ... 1023

Material Number ... 1024

Material Name ... 1025

Applicable Piping Code ... 1025

Material Density ... 1025

Minimum Temperature Curve (A-D) ... 1025

Eff, Cf, z ... 1026

Cold Elastic Modulus ... 1026

Poisson's Ratio ... 1026 FAC... 1026 Laminate Type ... 1027 Eh / Ea ... 1027 Temperature ... 1027 Exp. Coeff. ... 1027 Allowable Stress ... 1028 Elastic Modulus ... 1028 Yield Stress ... 1028

Ult Tensile Stress ... 1028

Weld Strength Reduction Factor (W) ... 1028

Add a new material to the database ... 1029

Delete a material from the database ... 1030

(16)

16

CAESAR II User's Guide

External Interfaces ... 1033

CAESAR II Neutral File ... 1034

Version and Job Title Information ... 1035

Control Information ... 1035

Basic Element Data ... 1036

Auxiliary Element Data ... 1038

Miscellaneous Data Group #1 ... 1047

Units Conversion Data... 1051

Nodal Coordinate Data ... 1052

CAESAR II Data Matrix ... 1052

Data Export Wizard ... 1053

CAESAR II Input and Output Files Dialog Box ... 1055

CAESAR II Input Export Options Dialog Box ... 1057

CAESAR II Output Report Options Dialog Box ... 1079

AFT IMPULSE ... 1088

How to Use the AFT IMPULSE Interface ... 1088

PIPENET ... 1089

Technical Discussion of the PIPENET Interface ... 1089

How to Use the CAESAR II / PIPENET Interface ... 1089

LIQT ... 1090

Technical Discussion of LIQT Interface ... 1090

How to Use the LIQT Interface ... 1091

Example 1 ... 1092

Example 2 ... 1094

Pipeplus ... 1096

How to Use the Pipeplus Interface ... 1096

FlowMaster ... 1100

How to Use The Flowmaster Interface ... 1101

Intergraph CADWorx Plant ... 1101

Intergraph Smart 3D PCF ... 1102

Intergraph PDS ... 1102

File Name ... 1103

Browse ... 1103

Minimum Anchor Node ... 1103

Maximum Anchor Node ... 1103

Start Node ... 1103

Increment ... 1103

Filter Out Elements Whose Diameter is Less Than ... 1104

Remove HA Elements ... 1104

Force Consistent Bend Materials ... 1104

Include Additional Bend Nodes ... 1104

Enable Advanced Element Sort ... 1104

Model TEES as 3 Elements ... 1104

Model Rotation ... 1104

Neutral File Weight Units ... 1105

Neutral File Insulation Units ... 1105

Data Modification and Details ... 1105

Example Neutral File from PDS ... 1106

Intergraph Data After Element Sort ... 1113

(17)

CAESAR II User's Guide

17

Intergraph Data After Valve Modifications ... 1115

Intergraph Data After Bend Modifications ... 1118

CADPIPE ... 1124

CADPIPE Example Transfer ... 1127

General Notes ... 1130

Error Code Statements ... 1131

CADPIPE LOG File Discussion ... 1131

Section 1 - Entity Information ... 1132

Section 2-Segment Information ... 1133

Section 3-Final CAESAR II Data ... 1134

Checking the CADPIPE/CAESAR II Data Transfer ... 1135

Import PCF ... 1136

PCF Interface Custom Attributes ... 1136

How to Use the PCF Interface ... 1151

Data Export to ODBC Compliant Databases ... 1159

DSN Setup ... 1159

Controlling the Data Export ... 1162

File Sets ... 1163

CAESAR II File Guide ... 1163

Required Program Files ... 1164

Required Error Data Files ... 1166

Required Data Sets ... 1166

Required Printer/Listing Files ... 1170

Dynamics Files ... 1172

Auxiliary Sets ... 1173

Structural Data Files ... 1174

Example Files ... 1174

External Interface Files ... 1176

CAESAR II Operational (Job) Data ... 1177

Update History ... 1181

CAESAR II Initial Capabilities (12/84) ... 1182

CAESAR II Version 1.1S Features (2/86) ... 1182

CAESAR II Version 2.0A Features (10/86) ... 1183

CAESAR II Version 2.1C Features (6/87) ... 1184

CAESAR II Version 2.2B Features (9/88) ... 1184

CAESAR II Version 3.0 Features (4/90) ... 1185

CAESAR II Version 3.1 Features (11/90) ... 1186

CAESAR II Version 3.15 Features (9/91) ... 1186

Flange Leakage and Stress Calculations ... 1187

WRC 297 Local Stress Calculations ... 1187

Stress Intensification Factor Scratchpad ... 1187

Miscellaneous ... 1187

CAESAR II Version 3.16 Features (12/91) ... 1188

CAESAR II Version 3.17 Features (3/92) ... 1188

CAESAR II Version 3.18 Features (9/92) ... 1189

CAESAR II Version 3.19 Features (3/93) ... 1190

CAESAR II Version 3.20 Features (10/93) ... 1191

CAESAR II Version 3.21 Changes and Enhancements (7/94) ... 1192

CAESAR II Version 3.22 Changes & Enhancements (4/95) ... 1194

(18)

18

CAESAR II User's Guide

CAESAR II Version 3.24 Changes & Enhancements (3/97) ... 1196

CAESAR II Version 4.00 Changes and Enhancements (1/98) ... 1198

CAESAR II Version 4.10 Changes and Enhancements (1/99) ... 1198

CAESAR II Version 4.20 Changes and Enhancements (2/00) ... 1199

CAESAR II Version 4.30 Changes and Enhancements (3/01) ... 1199

CAESAR II Version 4.40 Changes and Enhancements (5/02) ... 1200

CAESAR II Version 4.50 Changes and Enhancements (11/03) ... 1201

CAESAR II Version 5.00 Changes and Enhancements (11/05) ... 1202

CAESAR II Version 5.10 Changes and Enhancements ( 9/07) ... 1202

CAESAR II Version 5.20 Changes and Enhancements (4/09) ... 1203

CAESAR II Version 5.30 Changes and Enhancements (11/10) ... 1204

CAESAR II Version 5.31 Changes and Enhancements (5/12) ... 1205

CAESAR II Version 6.10 Changes and Enhancements (6/10) ... 1207

Index ... 1209

(19)

CAESAR II User's Guide

19

The latest CAESAR II release delivers a number of significant new and extended capabilities in response to current market requirements, as well as direct feedback from the growing

CAESAR II user community. The following changes have been made to CAESAR II:

CAESAR II 2014, Version 7.00

Piping Code and Material Database Updates

 Updated to support the 2012 Edition of the ASME B31.1 code. This work included material property updates.

 Updated to support the 2012 Edition of the ASME B31.3 code. This work included a new equation for calculating expansion stress cases with new SIF and index values.

 Updated to support the 2012 Edition of the ASME B31.8 code.

 Updated the ASME B31.8 code interpretation to use either of the two combined biaxial stress equations for restrained pipe, as referred to in Paragraph 833.4, instead of using the maximum of the two. You can specify this using the Yield Stress Criterion configuration setting in the SIFs and Stresses section of the Configuration Editor.

 Updated to support the 2013 Edition of the ASME B31.5 code.

 Updated to support the 2012 Edition of the EN 13480 code. This work included addressing bend pressure stiffening and changes to the longitudinal pressure stress equation, among other revisions.

 Updated the Material database, as required for piping code updates.

 Updated the flange rating for in-line flange checks per EN 1092-1:2013 and ANSI B16.5 2009.

 Added support for ANSI 16.5 2009 metric flange ratings.

 Added fatigue curves as indicated in the 2013 Edition of ASME Section VIII, Div. 2.  Extended the content for the ASME B31.3 code update and B163 to 1400F.

Modeling and User Interface

 Enabled quick global property changes (such as for temperature and pressure) from the

Legend dialog box in the 3D model.

 Enhanced the Distance command to measure between two points in the 3D model without requiring the input of node numbers.

 Added a new Global menu in piping input, which includes the Block commands. These commands are also accessible through the Block Operations toolbar and the right-click context menu from the List>Elements dialog box.

 Enhanced the Structural Steel Wizard to display units for various input fields, added more tool bar icons, and enhanced input grid usability.

 Addressed graphics issues.

 Completed minor usability enhancements based on customer feedback.

What's New in CAESAR II

(20)

20

CAESAR II User's Guide

Static and Dynamic Analysis

 Revised the Static Analysis (Load Case Editor) to automatically recommend Expansion (EXP) stress range load cases for better coverage of multiple operating conditions.  Provided an option for users to select the allowable corresponding to temperature for that

particular Occasional (OCC) load case for B31.3 jobs.

 Added support for in-line flange check evaluations for MAX and ABS load case combinations.

Interoperability

 Added the ability to import multiple supports at the same location from the Import PCF or

Intergraph Smart 3D PCF interfaces.

 Enhanced the hanger table for support design with LISEGA's LICAD software in the Data

Export Wizard (Export to MS Access).

Post-Processing

 Added output filters for flanges so that you can identify the most overstressed flanges.  Updated to show the actual Stress Indices (I) that are used for sustained and occasional

static load cases for ASME B31.3 code.

 Updated the Generate Stress Isometrics (CAESAR II Isogen module) with I-Configure

2014 (5.0).

Documentation/Help

 Updated the Quick Reference Guide with dates and information for all piping code updates made in CAESAR II 2014.

 Updated the F1 help in the Static Output Processor.

Technical Changes

The following technical changes were made for this release, which may affect the numeric results:

 Added a new equation for calculating expansion stress cases with new SIF and index values to support the 2012 Edition of the ASME B31.3 code.

 Addressed bend pressure stiffening and changed the longitudinal pressure stress equation, among other revisions to support the 2012 Edition of the EN 13480 code.

 Updated the minimum wall thickness equation for ASME B31.8 Chapter VIII to consider the longitudinal joint efficiency (using the Eff input box).

 Updated the ASME B31.8 code interpretation to use either of the two combined biaxial stress equations for restrained pipe, as referred to in Paragraph 833.4, instead of using the maximum of the two. You can specify this using the Yield Stress Criterion configuration setting in the SIFs and Stresses section of the Configuration Editor.

 Revised the calculations for SIFs in non-corroded conditions when the CODETI piping code is selected, based on clarification from French Code Committee.

(21)

CAESAR II User's Guide

21

 Revised the Static Analysis (Load Case Editor) to automatically recommend Expansion (EXP) stress range load cases for better coverage of multiple operating conditions.  Provided an option for users to select the allowable corresponding to temperature for that

particular Occasional (OCC) load case for B31.3 jobs.

 Added support for in-line flange check evaluations for MAX and ABS load case combinations.

 Resolved an issue in Structural Input where the software did not process UNIF values as gravitational multipliers (G loads) after you added the GLOAD command into the input stream. The software uses the gravitational multiplier (G load) value for all UNIF values when you add the GLOAD command into the input stream.

(22)
(23)

CAESAR II User's Guide

23

S

E C T I O N

1

CAESAR II® is a PC-based pipe stress analysis software package that is developed, marketed and sold by Intergraph CAS. This software is an engineering tool used in the mechanical design and analysis of piping systems. Use CAESAR II to create a model of the piping system

represented by simple 3D beam elements and to define the loading conditions imposed on the system.

With this input, CAESAR II produces results in the form of displacements, loads, and stresses throughout the system. Additionally, CAESAR II compares these results to limits specified by recognized codes and standards.

What are the Applications of CAESAR II

CAESAR II is most often used for the mechanical design of new piping systems. Loads,

displacements, and stresses can be estimated through analysis of the piping model in CAESAR II. CAESAR II incorporates many of the limitations placed on these systems and their attached equipment. These limits are typically specified by engineering bodies (such as the ASME B31 committees, ASME Section VIII, and the Welding Research Council) or by manufacturers of piping-related equipment (API, NEMA, or EJMA).

Hot piping systems present a unique problem to the mechanical engineer. These irregular structures experience great thermal strain that must be absorbed by the piping, supports, and attached equipment. These structures must be stiff enough to support their own weight but flexible enough to accept thermal growth.

CAESAR II is not limited to thermal analysis of piping systems. CAESAR II also has the capability of modeling and analyzing the full range of static and dynamic loads which can be imposed on the system. Because of this, CAESAR II is not only a tool for new design. It is also valuable in troubleshooting or redesigning existing systems. You can determine the cause of failure or evaluate the severity of unanticipated operating conditions such as fluid to piping interaction or mechanical vibration caused by rotating equipment.

Why is CAESAR II from other Pipe Stress Software

Our staff of experienced pipe stress engineers are involved in day-to-day software development, program support, and training. This approach has produced software that most closely fits the requirements of today’s pipe stress industry. Data entry is simple and straight-forward through dialog boxes. CAESAR II provides the widest range of modeling and analysis capabilities without becoming too complicated for simple system analysis. You can tailor your CAESAR II installation through default settings and customized databases. Comprehensive input graphics confirm the model construction before the analysis is made. The software's interactive output processor presents results on the monitor for quick review or sends complete reports to a file or printer. CAESAR II uses standard analysis guidelines and provides the latest recognized opinions for these analyses.

CAESAR II also offers seamless interaction with Intergraph® CADWorx® Plant, which is an AutoCAD®-based design and drafting system for creating orthographic, isometric, and 3D piping drawings. The two-way-link automatically generates stress analysis models of piping layouts or creates spectacular stress isometrics in minutes from CAESAR II models.

(24)

24

CAESAR II User's Guide

CAESAR II is a field-proven engineering analysis program. It is a widely recognized product with a large customer base and an excellent support and development record.

In This Section

About the CAESAR II Documentation ... 24 Software Support/User Assistance ... 24 Software Revision Procedures ... 25 Updates and License Types ... 27

About the CAESAR II Documentation

The supporting software documentation is organized in the following manuals:

CAESAR II User's Guide - Describes the basic operation and flow of the commands found in

CAESAR II. This manual gives an overview of the software capabilities and introduces model creation, analysis, and output review. It explains the function of, input for, and output from each module of the program. This manual also explains much of the theory behind CAESAR II calculations. It is intended as a general road map for the software.

CAESAR II Application Guide - Provides examples of how to use CAESAR II. These examples

illustrate methods of modeling individual piping components as well as complete piping systems. This document contains tutorials on system modeling and analysis. The CAESAR II Application

Guide is a reference providing quick "how to" information on specific subjects.

CAESAR II Quick Reference Guide - Provides version and technical change details in addition

to installation and commonly used information. This document also lists the currently

implemented piping codes (with publication and revision dates) and related stress and allowable equations.

You can view and print any of the manuals by clicking Help > Online Documentation on the CAESAR II Main menu.

Software Support/User Assistance

Intergraph CAS understands that CAESAR II is a complex analysis tool. While the documentation is intended to explain piping analysis, system modeling, and results interpretation, you may have additional questions.

We understand the engineer’s need to produce efficient, economical, and expeditious designs. To that end, we have a staff of helpful professionals ready to address any CAESAR II and piping issues raised by you. CAESAR II support is available by telephone, e-mail, fax, and the Internet. We provide this service at no additional charge to you for questions focused on the current version of the software.

Formal training in CAESAR II and pipe stress analysis is also available from Intergraph CAS. We schedule regular training classes in Houston and provide in-house and open attendance training around the world. These courses focus on the expertise available for modeling, analysis, and design.

To aid internet users when contacting technical support, Intergraph CAS has added an option that generates an e-mail template with the basic computer and CAESAR II version details. This

(25)

CAESAR II User's Guide

25

information is typically what is needed to resolve technical support issues. To use this option, click Help > Email CAESAR II Support.

This command starts the default e-mail client and populates an e-mail with the default information.

The e-mail is addressed to Technical Support and contains all the information relevant to your CAESAR II installation. Type the problem description at the Type Message Here prompt and attach any necessary files.

You can contact Intergraph CAS Technical Support or Sales:

 ICAS Dealer Support (http://www.coade.com/Support/Dealers.shtml ) or ICAS General

Support (http://support.intergraph.com/Default.asp)  Technical Support E-mail: [email protected]

 Phone: 1-800-766-7701 (CAESAR II Direct), 280-890-4566 (General)  Fax: 281-890-3301

 Sales E-mail: [email protected]

 Knowledge-based Articles/Tutorials (US and Canada only):

https://smartsupport.intergraph.com (https://smartsupport.intergraph.com)

Software Revision Procedures

CAESAR II is updated continually to reflect engineering code addenda, operational

enhancements, your requests, operating system modifications, and corrections. New versions are planned and targeted for a specific release date. However, there may be corrections necessary to the current version before the next version can be released. When this occurs, a correction to the current version is made. This correction is referred to as a "build."

A build is finalized, announced, and posted to the web site. All maintenance builds for new releases contain all previous builds. This increases the download size and time required to obtain the build, but only one build is required at any given time.

Identifying Builds

When posted on the web site, builds are identified with the program identifier and the date the build was generated, as in C2YYY-YYMMDD.exe.

Can Builds be Applied to Any Version?

No. As new versions are released, additional input items become necessary and must be stored in the software data files. In addition, file formats and databases change. A build is intended for one specific version of the software. Using a build on a different version without specific advice from Intergraph CAS Support is a sure way to cripple the software.

Obtaining Builds

Builds are available for download at our website (http://www.coade.com) and are arranged in sub-folders by program. Each file contained in the folder includes a description , its size, and the creation date.

(26)

26

CAESAR II User's Guide

What is Contained in a Specific Build?

Each build contains a file named BUILD.TXT containing a description of all corrections and enhancements in the current build. When necessary, additional usage instructions can be found in this file.

Installing Builds

Builds distributed for Windows-based applications use a Windows installation procedure with a standard SETUP.EXE program to actually install the build. This procedure ensures that the necessary files are registered with the system and that the uninstall utility can perform its task.

Detecting/Checking Builds

When a build is ready to be released, Help > About CAESAR II is revised to reflect the build level. To see which program modules have been modified, you can run an Intergraph CAS utility program from within the program folder.

Diagnostics > Build Version scans each of the .EXE modules in the program folder and lists

the size, memory requirements, and build level for each file. A sample display from this utility is shown below.

Archiving and Reinstalling an Older, Patched Version

When a new version of the software is released, what should be done with the old, existing version? The distribution disks sent from Intergraph CAS should be saved. Additionally, any builds obtained should be archived. This allows full usage of this version at some later time, if it becomes necessary.

(27)

CAESAR II User's Guide

27

To reinstall an older version of the software, first install the software from the Intergraph CAS CDs. Then, install the latest build. Each build includes the modifications made in all prior builds.

Updates and License Types

You can identify CAESAR II update sets by their version number. The current release is Version 2014 (V7.0) - PRELIMINARY. Intergraph CAS schedules and distributes these updates

periodically, depending on their scope and necessity. The type of CAESAR II license that you have determines whether you receive these updates. There are three types of CAESAR II licenses:

Full Run - Provides unlimited access to CAESAR II. Updates, maintenance, and support are

available on an annual basis.

Lease - Provides unlimited access to CAESAR II with updates, maintenance, and support

provided as long as the lease is in effect.

Limited Run - Provides 50 static or dynamic analyses of piping system models over an

unlimited period of time, but does not include program updates. Your license is upgraded, if necessary, whenever you purchase a new set of 50 runs.

Intergraph CAS only ships the current version of CAESAR II, no matter which type of license you purchase. Updates will be delivered on request to lease users and to full run users who have a current support/maintenance contract.

(28)
(29)

CAESAR II User's Guide

29

S

E C T I O N

2

This section explains the CAESAR II basic operation, and steps you through a quick static piping analysis.

The main steps required to perform a static analysis are: 1. Starting CAESAR II (on page 29)

2. Create a new job (on page 30) 3. Piping Input generation (on page 31) 4. Model Error Checking (on page 34) 5. Building Load Cases (on page 35) 6. Run a static analysis (on page 36) 7. Static Output Review (on page 36)

A complete tutorial is provided in the CAESAR II Applications Guide.

In This Section

Starting CAESAR II ... 29 Understanding Jobs ... 30 Basic Operation ... 30 Main Menu ... 37

Starting CAESAR II

1. Click Start > All Programs > Intergraph CAS > CAESAR II > CAESAR II. You may

also have a CAESAR II icon on your desktop that you can use to start CAESAR II.

The main CAESAR II window displays.

This window contains the main menu and toolbar from which you select jobs and analysis types, start analysis, and review output.

(30)

30

CAESAR II User's Guide

2. Click File > Set Default Data Directory.

The Default Data Directory Specification dialog box displays.

3. Define the folder to save your jobs and other CAESAR II data files. The default folder is C:\ProgramData\Intergraph CAS\CAESAR II\version\Examples.

4. From the Language menu, select your language for the interface.

5. In Windows Explorer, go to C:\ProgramData\Intergraph CAS\CAESAR II\version\System. 6. Using a text editor, open Company.txt and specify your company name on the first line.

This will place your company name is the header of CAESAR II calculations.

Understanding Jobs

All CAESAR II analyses require a job name for identification purposes. All subsequent input, analysis, or output reviews reference the job specified. You create a new job by selecting File >

New or by clicking New on the main toolbar. You open an existing job by selecting File >

Open or by clicking Open on the main toolbar.

After you have created or opened a job, the job name displays in the title bar of the main CAESAR II window. Use the commands on the Input, Analysis, and Output menus to define, analyze, and review your data.

Basic Operation

To help you get familiar with CAESAR II, we will step through a basic piping analysis.

Topics

Create a new job ... 30 Piping Input generation ... 31 Model Error Checking ... 34 Building Load Cases ... 35 Run a static analysis ... 36 Static Output Review ... 36

Create a new job

1. Click Start > All Programs > Intergraph ICAS > CAESAR II > CAESAR II .

The CAESAR II main window displays.

2. Click File > New.

The New Job Name Specification dialog box displays.

3. In the Enter the name for the NEW job file box, type MyFirstPipingModel. 4. Select the Piping Input option.

5. In the Enter the data directory box, type C:\temp\CAESAR II.

You can put your job file in another folder if you want, just remember where and substitute that folder for C:\temp\CAESAR II when needed.

(31)

CAESAR II User's Guide

31

6. Click OK.

The job is created and the job name displays in the main window title bar.

Next, the Review Current Units dialog box displays.

7. Review the units listed in the dialog box, and then click OK.

The Piping Input window displays.

You can use Input > Piping to activate the Piping Input window.

Piping Input Generation

Model input generation consists of describing the piping elements and any external influences (boundary conditions or loads) acting on those elements. Two node numbers identify each pipe element end. Every pipe element also requires the specification of geometric, cross sectional, and material data. One method of data entry is the Piping Spreadsheet.

You define a piping element on its own spreadsheet. Some data, when defined on a piping element, is automatically duplicated by CAESAR II to subsequent piping spreadsheets. This means that for many elements you only have to confirm the node numbers and enter the delta-dimensions, and then CAESAR II automatically duplicates from the previous element the other data such as pipe diameter, operating temperatures, material type, and so forth. You can always enter specific data to override the duplicated data in the piping spreadsheet for an element.

The menus, toolbars, and accelerators offer a number of additional commands to enter auxiliary processors or use special modelers or databases. The commands and general input instructions of the piping spreadsheet are discussed in detail in Piping Input Reference (on page 99).

1. In the DX box, type 10-0 (which is 10 ft). 2. In the Diameter box, type 8 (8-in. nominal).

CAESAR II automatically converts this value to the actual diameter.

3. In the Wt/Sch box, type S (standard schedule pipe wall).

CAESAR II automatically converts this to wall thickness.

(32)

32

CAESAR II User's Guide

5. In the Pressure 1 box, type 150 (psig). 6. Double-click the Bend check box.

The Bends tab displays.

This adds a long radius bend at the end of the element, and adds intermediate nodes 18 and 19 at the near weld and mid-points of the bend, respectively (node 20 physically represents the far weld point of the bend).

7. Double-click the Restraint check box.

(33)

CAESAR II User's Guide

33

8. In the first Node box, type 10, and then select ANC from the first Type drop list.

9. Select A106 B from the Material drop list.

This selection fills in the material parameters such as density and modulus elasticity.

10. Double-click the Allowable Stress check box.

The Allowable Stresses tab displays.

11. Select the B31.3 code from the Code drop list.

Allowable stresses for the given material, temperature, and code display automatically.

12. In the Fluid Den 1 box, type 0.85SG (0.85 specific gravity).

The software automatically converts this value to density.

13. After you finish defining the first element, you need to move to the next element. You can do this by pressing Alt-C, by clicking Continue , or by selecting Edit > Continue from the menu.

Node numbers are automatically generated in the From and To boxes and data is carried forward from the previous element.

14. In the DY box, type 10-0 (10 feet). 15. Double-click the Restraint check box.

16. In the first Node box, type 30, and then select ANC from the first Type drop list.

(34)

34

CAESAR II User's Guide

The piping input preprocessor has an interactive graphics and a list view function to make model editing and verification easier. You can verify your model using the Graphics or List utilities, although a combination of both modes is recommended. By default, the graphics screen

displays to the right of the input spreadsheet. You can click the small pin in the upper-left corner to collapse the input spreadsheet to provide maximum graphic space.

Model Error Checking

When you are finished modeling, you must run File > Error Check before you can run an analysis.

The two main functions of this error check are to verify your input data by checking each individual piping element for consistency and to build the execution data files used by the analysis and review processes.

Errors that will prevent the analysis from running (such as a corrosion allowance greater than the wall thickness) are flagged as fatal errors and display in red text. Unusual items (such as a change of direction without a bend or intersection) are flagged as warnings and display in green text. Other informational messages that may show intermediate calculations or general notes display in blue text. All messages display in the Errors and Warnings tab next to the model graphics.

(35)

CAESAR II User's Guide

35

When you double-click an error or warning message, CAESAR II displays the spreadsheet of the associated element and highlights the element in the graphic display. You can sort error messages by clicking the column titles. Use File > Print to print the entire error report or selected sections. Use the options arrow on the Error Check icon to display only fatal errors or all errors.

If there is a fatal error, you must return to the input module to make corrections. Click the

Classic Piping Input tab or double-click the row number for the error message.

If the error check process completes without fatal errors, a center of gravity report displays, the analysis data files are generated, and the solution phase can commence. If fatal errors do exist, the analysis data files are not generated and the solution phase cannot begin. You must make corrections and rerun the Error Checker until successful before analysis is permitted.

Building Load Cases

After the analysis data files have been created by the error checker, you can run a static

analysis. The first step of a static analysis is to define the load cases. For new jobs (there are no previous solution files available), the static analysis module recommends load cases to you based on the load types encountered in the input file. These recommended load cases are usually sufficient to satisfy the piping code requirements for the Sustained and Expansion load cases. If the recommended load cases are not satisfactory, you can modify them.

1. From the Piping Input window, select Edit > Edit Static Load Cases .

The Static Analysis dialog box displays.

2. You can build loads two ways:

 Combine the load components defined in the input (weight, displacements, thermal cases, and so forth) into load cases (basic cases), or

 Combine pre-existing load cases into new load cases (combination cases).

3. Build the basic cases by selecting one or more load components in the Loads Defined in

Input list and then dragging and dropping them to the Load Cases list to the right. You can

also type on any of the individual load case lines. Stress types (indicating which code equations should be used to calculate and check the stresses) are selected from the Stress

Type list.

Combination cases, if needed, must follow the basic cases. You can build combination cases by selecting one or more load components and the dragging and dropping the basic load cases from earlier in the load case list to combine cases (or blank load cases) later in the list.

You can have a maximum of 999 static load cases. For more information, see Static

(36)

36

CAESAR II User's Guide

Run a static analysis

After the load cases are defined, you can run the analysis.

1. Select File > Batch Run to run the actual finite element solution.

The analysis creates the element stiffness matrices and load vectors and solves for displacements, forces and moments, reactions, and stresses. The analysis also performs the design and selection of spring hangers and iterative stiffness matrix modifications for nonlinear restraints. Finally, the Static Output Processor window displays.

Static Output Review

When the analysis is finished, you can review the results using the Static Output Processor window.

1. On the main CAESAR II window, select Output > Static.

The Static Output Processor window displays.

2. In the Load Case Analyzed list, select one or more load cases for which to review results. 3. In the Standard Reports list, select one or more reports to review.

4. Click --> Add.

5. Select where you want to view the results: the screen, Microsoft Word or Excel, the printer, or an ASCII file.

6. Click Finish to view the reports.

7. Click Options > Graphical Output to review the analytic results in graphics mode, which can produce displaced shapes, stress distributions, and restraint actions.

The actual study of the results depends on the purpose of each load case and the reason for the analysis. Usually the review checks that the system stresses are below their allowables,

restraint loads are acceptable, and displacements are not excessive. Additional post processing (such as equipment, nozzle, and structural steel checks) might be required depending on the model and type of analysis.

After you finish reviewing the output, return to the main window by exiting the output review module.

(37)

CAESAR II User's Guide

37

Main Menu

After starting CAESAR II, the main menu and toolbar appear. Keep this window as small as possible to conserve screen space.

Topics

File Menu ... 37 Input Menu ... 40 Analysis Menu ... 40 Output Menu ... 41 Language Menu ... 41 Tools Menu ... 42 Diagnostics Menu ... 42 ESL Menu ... 43 View Menu ... 43 Help Menu... 43

File Menu

The File menu is used to create and save piping and structural jobs.

Topics

Set Default Data Directory ... 38 New ... 38 Open ... 39

(38)

38

CAESAR II User's Guide

Set Default Data Directory

Sets the default data (project) directory without selecting a specific job file. Some CAESAR II options do not require that a job be selected but must know in which directory to work. All CAESAR II generated data files are written to this directory. Click File > Set Default Data

Directory on the main menu to activate the Default Data Directory Specification dialog box.

Click Examples to set the default data directory to the examples directory delivered with CAESAR II.

The data directory specification is very important because any configuration, units, or other data files found in that directory are considered to be local to that job.

New

Starts a new piping or structural job. Click File > New on the main menu to activate the New

Job Name Specification dialog box.

New Job Name Specification Dialog Box

Controls parameters for creating a new CAESAR II job.

Enter the name for the NEW job file - Specifies the job name. Piping Input - Indicates that the job is a piping job.

Structural Input - Indicates that the job is a structural job.

Enter the data directory - Specifies the location of the job file. You can type the directory into

(39)

CAESAR II User's Guide

39

Open

Opens an existing piping or structural job. Click File > Open on the main menu to activate the Open dialog box. Use the Open dialog box to browse to and select the job file to open. Click

System to jump to the CAESAR II system folder. Click Example to jump to the CAESAR II

delivered example jobs folder.

You can also roll-back to a previous revision of a piping input job using the Open dialog box. CAESAR II saves the last 25 revisions, deleting the oldest revision when necessary.

1. Click File > Open.

2. Browse to and then select the piping input job to roll-back.

3. In the Previous Revisions list in the bottom-right corner of the Open dialog box, select the revision to rollback to.

4. Click Open.

The software asks you to confirm restoring the selected backup.

(40)

40

CAESAR II User's Guide

Input Menu

The Input menu is used to select the modules to define the job input parameters. Piping and Underground are available for piping jobs. Structural Steel is available for structural jobs.

Piping - Defines piping job parameters. For more information, see Piping Input Reference (on page 99).

Underground - Converts an existing piping model to buried pipe. For more information, see

Buried Pipe Modeler (on page 483).

Structural Steel - Defines structural steel for the job. For more information, see Structural

Steel Modeler (on page 387).

Analysis Menu

The Analysis menu displays the available calculations in CAESAR II.

Statics - Performs Static analysis of pipe or structure. The command is available after error checking the input files. For more information, see Static Analysis Dialog Box (on page 533).

Dynamics - Performs Dynamic analysis of pipe or structure. The command is avail\-able after error checking the input files. For more information, see Dynamic Analysis (on page 609).

Intersection SIF Scratchpad - Displays scratch pads used to calculate stress intensification factors at tee intersections. For more information, see Intersection Stress Intensification Factors (on page 772)

Bend SIF Scratchpad - Displays scratch pads used to calculate stress intensification factors at bends. For more information, see Bend Stress Intensification Factors (on page 778).

WRC 107(537)/297 - Calculates stresses in vessels due to attached piping. For more information, see WRC 107 Vessel Stresses (see "WRC Bulletin 107(537)" on page 788).

Flanges - Performs flange stress and leakage calculations. For more information, see Flange

Leakage/Stress Calculations (on page 791).

B31.G - Estimates pipeline remaining life. For more information, see Pipeline Remaining

Strength Calculations (B31G) (on page 811).

Expansion Joint Rating - Evaluates expansion joints using EJMA equations. For more information, see Expansion Joint Rating (on page 816).

AISC - Performs AISC code check on structural steel elements. NEMA SM23 - Evaluates piping loads on steam turbine nozzles. API 610 - Evaluates piping loads on centrifugal pumps.

API 617 - Evaluates piping loads on compressors.

API 661 - Evaluates piping loads on air-cooled heat exchangers. HEI Standard - Evaluates piping loads on feedwater heaters. API 560 - Evaluates piping loads on fired heaters.

(41)

CAESAR II User's Guide

41

Output Menu

The Output menu lists all available output of piping or structural calculations that can be selected for review.

Static - Displays the results of a static analysis. For more information, see Static Output

Processor Window (see "Static Output Processor" on page 563). Harmonic - Displays Harmonic Loading results.

Spectrum Modal - Displays Natural Frequency/Mode Shape calculations or Uniform/Force Spectrum Loading results.

Time History - Displays Time History Load Simulation results.

Animation - Displays Animated Graphic simulations of any of the above results. Click to view

any of the following simulations: Mode Shapes

Harmonic Time History Static

Language Menu

CAESAR II supports multiple languages. To select the language, click Language on the CAESAR II main menu, and then select the language you prefer. Many of the CAESAR II modules are available in English and Japanese, such as the Main Menu, the Classic Piping

Input dialog box, the Static Load Case Editor, and the Static Output Processor. Additionally,

significant portions of the documentation, including the various guides and F1 Help information, are translated.

English (United States) - Identifies that the current language is English, which is the default

language.

Japanese - Changes portions of the CAESAR II program text to Japanese.

Future releases of CAESAR II will include support for new languages in the product and documentation.

References

Related documents

A numerical simulation was performed to investigate the effect of geometry (outer wall diameter, length, outer wall thickness), material (foam density), and loading (axial

The maximum span and deflection calculation is carried out and the piping system with intermediate support and without intermediate support is analysed in CAESAR II software..

In the example selected (a 10-cycle 25kHz Hann-windowed pulse with torsional excitations in an 88.9mm outer diameter, 5.49mm wall thickness pipe with a mean bend radius of 229mm),

Table 3 — Nominal wall thickness for inner and outer skin of tanks, dished ends and compartment dished ends Tank classes.. Nominal diameter

Table 3 — Nominal wall thickness for inner and outer skin of tanks, dished ends and compartment dished ends Tank classes.. Nominal diameter

Only four input values are required to generate allowable loads, stress intensification factors and flexibilities – the diameter of the nozzle and vessel, and the thickness of

Expansion joints may be modeled as zero-length (with all stiffnesses acting at a single point) or as finite CAESAR II - User Guide Data Fields Piping Input 5-7 length (with the

When using the Get Loads From Output File button to read in piping loads from CAESAR II output files, the axis orientation of the piping files need not match that of the