SACS2

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SACS

USER TRAINING COURSE NOTES

SEPT 2011

HO CHI MINH CITY

OFFSHORE STRUCTURAL DESIGN & ANALYSIS SYSTEM

BY

ENGINEERING DYNAMICS, INC

Engineering Dynamics, Inc. Training 2011 Structural Modeling Page - 1

Section 1 Starting a model

In windows file explorer create a directory called “Training Project”, and a subdirectory called “Structural Modeling”.

Launch SACS Executive and go to “SACS Settings\Units Settings” and set default units to “Metric KN Force”. Then click on the “OK” button. See picture below.

Set current working directory to “Structural Modeling” and launch Precede program by clicking on “Modeler”icon in “Interactive” window of Executive (See picture below). Click here to launch

Precede

Select “Create New Model” and click ok. Then select “Start Structure Definition Wizard” and click ok.(See two pictures below).

Section 2 Defining the jacket/pile and conductor model Define the jack/pile based on the drawing 101

Elevations:

Water depth 79.5 m

Working point elevation: 4.0 m Pile connecting elevation: 3.0 m

Mudline elevation, pile stub elevation, and leg extension elevation: -79.5m

Other intermediate elevations: -50.0, -21.0, 2.0, 15.3 (cellar deck), 23.0m (main deck) (See picture below)

Click here to create the new model

Keep “Generate Seastate hydrodynamic data” checked to create hydrodynamic data, such as pile and w.b overrides.

Legs:

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Number of legs: 4 Leg type: Ungrouted

Leg spacing at working point: X1=15 m, Y1=10 m.

Row Labeling: Define the Row label to match the drawing

Pile/Leg Batter: Row 1 (leg 1 and leg 3, 1st Y Row) is single batter in Y

Row 2 (leg 2 and leg 4, 2nd Y Row) is double batter

(See picture below for the details of the input)

Conductors:

Click on the “Conductors” Tab and then click on “Add/Edit Conductor Data” to enter the data for the conductors.

One conductor well bay that has four conductors The top conductor elevation: 15.3m

First conductor number: 5

Number of conductors in X direction: 2 Number of conductors in Y direction: 2

The location of first conductor (LL): X= -4.5m, Y= -1.0m (See drawing 102/104) The distance between conductors: 2.0m in both X and Y directions.

Disconnected elevations: -79.5m, 3.0m, and 4.0m. Click here to define leg

spacing at the working point.

(See picture below for the details of the conductor data input)

Click-on “Apply” to create the leg/pile and conductor model as shown below. Engineering Dynamics, Inc. Training 2011

Structural Modeling Page - 5

Save model:

Go to File/Save As, click “O.K” from prompted window and give file name sacinp.dat_01.

Define properties of leg members:

We can set up the User Defined Units as English Units for tubular member diameters and wall thickness.

On the Precede toolbar select

“Property”>“Member Group”. The Member Group Manage Window will show up (See picture on the right).

The Undefined Group window shows all group IDs which are assigned to members, but their properties have not been defined.

The IDs will be moved to Defined Groups Window after properties are defined.

Click “LG1” from Undefined Groups window and then click on “Add” Tab to define the section and material properties of LG1.This group is segmented and the data can be found in Drawing 101.

Segment 1: D =48.5in, T = 1.75in, Fy = 34.50 kN/cm2, Segment Length = 1.0 m

Segment 2: D =47.0in, T = 1.0in , Fy = 24.80 kN/cm2

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Member is flooded

The unit of each input filed can be modified to use available data. In the pictures below the unit of Outside Diameter and Thickness are changed to English (in). The segment length will be designed later. See the pictures below for the details of the LG1 group data input.

Repeat above to define LG2 and LG3 group, the data can be found in Drawing 101.

Define groupLG4,DL6, DL7, CON, PL* and Wishbone groups, find the section dimensions from Drawing 101. LG4 = 48.5”x1.75” DL6 = 42”x1.5” DL7 = 42”x1.5” CON = 30”x1” flooded PL* = 42”x1.5” W.B. = 30”x1” flooded

To define those non-segmented groups click the group ID from Undefined Group

Window and then click on “Add” Tab; enter the data and “Apply”. The picture on the right shows the LG4 data.

All above groups have section type of Tubular, and both the geometry and material data can be defined in Group Manage

window.

Click here to add segment Click here to add thethird Click here after the last

segment is defined to finish group LG1

Save model: File/Save As, and name the file to sacinp.dat_02.

Member groups defined at this time shall look like the following:

--- GRUP CON 76.200 2.540 20.007.72224.80 1 1.001.00 0.500F7.8490 GRUP DL6 106.68 3.810 20.007.72224.80 1 1.001.00 0.500 7.8490 GRUP DL7 106.68 3.810 20.007.72224.80 1 1.001.00 0.500 7.8490 GRUP LG1 48.500 1.750 20.007.72234.50 1 1.001.00 0.500F7.84901.00 GRUP LG1 47.000 1.000 20.007.72224.80 1 1.001.00 0.500F7.8490 GRUP LG1 48.500 1.750 20.007.72234.50 1 1.001.00 0.500F7.84901.00 GRUP LG2 123.19 4.445 20.007.72234.50 1 1.001.00 0.500F7.84901.00 GRUP LG2 119.38 2.540 20.007.72224.80 1 1.001.00 0.500F7.8490 GRUP LG2 123.19 4.445 20.007.72234.50 1 1.001.00 0.500F7.84901.00 GRUP LG3 123.19 4.445 20.007.72234.50 1 1.001.00 0.500F7.84901.00 GRUP LG3 119.38 2.540 20.007.72224.80 1 1.001.00 0.500F7.8490 GRUP LG3 123.19 4.445 20.007.72234.50 1 1.001.00 0.500F7.84901.00 GRUP LG4 123.19 4.445 20.007.72234.50 1 1.001.00 0.500F7.8490 GRUP PL1 106.68 3.810 20.007.72224.80 1 1.001.00 0.500 7.8490 GRUP PL2 106.68 3.810 20.007.72224.80 1 1.001.00 0.500 7.8490 GRUP PL3 106.68 3.810 20.007.72224.80 1 1.001.00 0.500 7.8490 GRUP PL4 106.68 3.810 20.007.72224.80 1 1.001.00 0.500 7.8490 GRUP PL5 106.68 3.810 20.007.72224.80 1 1.001.00 0.500 7.8490

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GRUP W.B 76.200 2.540 20.007.72224.80 1 1.001.00 0.500F7.8490

--- Section 3 Create the horizontal framings of the jacket

Open file sacinp.dat_02 or continue from last section. Step 1 Select the View

Go to “Display”> “Plan” and pick -79.5 to create the framing at the mudline elevation.The Structural plan can be found in Drawing 103Plan @ EL (-) 79 500.

The model of the plan after built will be shown in the model plot Plan at EL-79.5

Go to “Display”>“Group Selection” to exclude Pile and Wishbone elements from the current view. See picture below for details.

You should only see the joints on the jacket legs and conductors in the current view. Engineering Dynamics, Inc. Training 2011

Step 2 Add horizontal members to connect the legs

Go to “Member”>“Add” to get dialog box shown below. Click on 101L and 102L and enter “H11”as

group ID. Then click on “Apply” or Rightclick to add the member, see picture on the

right.

Repeat to create member 101L-103L, 102L- 04L and 103L-104L.

Step 3 Divide the members by ratio

The joint 1100, 1101 and 1102 can be added by divide member by ratio since the joints are at the mid points of the beams.

Exclude selected groups from the view Groups

selected

Uncheck here to remove unattached joints

To create joint 1100, go to “Member”>

“Divide”>“Ratio” to get the dialog box

shown on the left.

Click-on Member 103L-104L Enter 0.5 to “Ratio from joint A” Enter new joint name 1100 Check on “Use next available…” Leave others blank

Click Apply to create the joint

You will be getting a new joint and two new elements, the original member 103L-104L has been replaced by two new created members.

Repeat this step to create joint 1101 and 1102. Step 4 Divide the member by length

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dimensions on Drawing 101. To create joint 1103, go to

“Member”>“Divide”>“Length” to get the

dialog box shown on the left. Click to select member 101L-103L Enter 11.35m to “Length from Joint A” New Joint name should be 1103

Keep “Use next available name” checked Leave others blank

Joint 1004 can be added same way with distance=4.0m.

Step 5 Connect diagonal brace members

Add a member connecting Joint 1101-1100, and define group label as “H12”.

Add the members connecting Joint 1101-1102, 1102-1100, 1104-1100 and 1101-1103, and define group ID as “H13”.

Step 6 Create well head frame members

Joint 1105 and 1106can be defined by using Divide by Length based on the available dimensions on Drawing 101, same as Joint 1103 and 1104.

To create joint 1105, go to

“Member”>“Divide”>“Length” to get the

dialog box on the left.

Click to select member 1101-1100 Enter 11.35m to “Length from Joint A” New Joint name should be 1105

Keep “Use next available name” checked Leave others blank

Joint 1006 can be added the same way with distance=4.0m.

Add member 1104-1106 and 1103-1105, Group ID should be “H13”

Use “Member”>“Divide”>“Length” to create Joint 1107, 1108, 1109 and 1110. The distances can be found in the drawing, see pictures below for adding Joint 1107 and 1110.

Add Member 1107-1108 and 1109-1110 with Group ID H14. Step 7 Define member group properties

Define the group properties to H11, H12, H13 and H14, the dimensions and material can be found in the drawing. The pictures below show the sample of H11 and H12 definition. Engineering Dynamics, Inc. Training 2011

Note that the unit of each input can be changed to match available data. The following pictures show the diameter and thickness being changed to an English Unit so the data from the drawing can be input directly. *Make sure units chosen are correct.

Repeat all the steps in Section 3 to create horizontal plans at elevation -50.0m, -21.0m and 2.0m.All the data and dimensions needed to build the model can be found in Drawings 102 and 103.The joint name and group ID can be found in model plots Plan at EL-50, Plan at EL-20 and Plan at EL+2 PDF files.

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Section 4 Create conductor guide framing Use Plan at EL-50.0 as a sample:

Step 1 Create the joints to connect the conductor guide

Divide members 2107-2109, 2108-2110 by ratios to create joints 2111 and 2112;

Add members 2107-2108, 2109-2110, and 2111-2112 and then divide them by ratios to create joint 2113, 2114, and 2115.

Connect members 2113-2115 and 2115-2114.

Step 2 Define member group for conductor guide frame

Use “Property”>“Member Group” to define the group property for the conductor guide frame. The conductor and frame connection model is shown in the picture below.

Repeat the steps above to build the conductor connections at elevation -21.0 and 2.0. Save the file to SACINP.dat_03.

Section 5 Create diagonal members on jacket rows Step 1:

Open sacinp.dat_03 with Precede and go to “Display”>“Face” and pick “Row A”. Step 2

Go to “Display”>“Group Selections” to turn off the Pile and Wishbone elements from the view.

Step 3:

Turn on the Joint and Group label by clicking on the “J” and “G” icon on the toolbar. Step 4:

Define the X-brace between elevation - 79.5m and -50.0m. Engineering Dynamics, Inc. Training 2011

Go to “Member”>“X-Brace” to get the dialog box on the right, and enter the data: Center joint name 101X

Pick four joints 101L, 202L, 201L and 102L (Pick the joints diagonally)

Enter BR1 as group ID of through members (101L-202L)

Enter BR2 as the group of other members Use 0.9 as the K factor

Click on “Apply” Step 5:

Define the X-brace between elevation - 50.0m and -21.0m

Go to “Member”>“X-Brace” to get the dialog box on the right, and enter the data: Center joint name 201X

Pick four joints 202L, 301L, 302L, and 201L (Pick the joints diagonally)

Enter BR3 as group ID for through members (202L-301L)

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Enter BR4 as the group for the other members

Use 0.9 as the K factor Click on “Apply” Step 6

Repeat Step 5 to build the X-brace between Elevation -21.0m and 2.0m.The new center joint name should be 301X; group IDs should be BR5 for through members and BR6 for others. The locations of center joints 101X, 201X and 301X are automatically calculated by the program.

Step 7

Repeat Step 1 to Step 6 to build X-braces on Row B, Row 1 and Row 2; use same Group IDs and the center joint ID starts from 102X on Row B, 103X on Row 1 and 104X on Row 2.

Step 8

Define the group properties for the X-brace members. BR1, BR3, and BR5 are through members which are segmented. BR2, BR4, and BR6 are non-segmented members. The dimensions of all members can be found in Drawing 101.

Save model and give a new name sacinp.dat_04. Section 6 Creating deck frame

Step 1 Cellar Deck (El +15.30m):

Go to “File”>“Structure Definition” and click on the “Deck Girders” Tab. Then click on “Add/Edit Deck Girder Data”. You should see the following window below.

Deck elevation: select 15.30

Deck extension: input 4.0m at structure North and South Click “Apply” to apply the input information to the model. Check-on here to add the

deck extension beams

Step 2 Main deck (El +23.0m)

Click on “Add/Edit Deck Girder Data” Deck elevation: select 23.00

Deck extension: input 4.0m at structure North and South, 5.0m at structure East

Click “Apply” or “OK” to apply to model. By clicking ok it will apply to the model and also close out the structure definition box.

Step 3

Go to “Display”>“Plan” and select Plan at 15.3. Then go to “Display”>“Labeling”>“Special” and turn off “Show jacket rows” to get a larger view. Turn on the Joint and Group Label from Toolbar icon.

Step 4

Change the member group ID to W01 and W02 as shown in model plot Plan at 15.3, go to

“Member” > “Details/Modify” and select the elements to change.

Step 5

Check-on here to add the deck extension beams

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The Member divide feature can be used to simplify modeling. Joint and group names should be defined as shown in the model plot Plan at 15.3. The dimensions needed to build the model can be found in Drawing 202. The functions recommended to build the frame model are:

“Member”>“Divide”>”Distance” “Member”>“Divide”>”Ratio”

“Member” >“Divide”>”Perpendicular”

The new created joints naming should start from 7100.All the distances and ratios can be found in the drawing. The conductor guide should be connected to the deck using dummy members. This is the same as the ones in the jacket.

Step 6

Repeat Step 3 to Step 5 to build the frame in EL 23.00 plan, and the modeling results are shownin the model plotPlan at 23.0.

Step 7

Define the properties for group W01 and W02; the sections should be selected from the AISC 9th

edition Library.

The above three pictures is a sample of how to define W01 (From Left to Right).Repeat it to define the properties for W02.

Deck member groups defined at this time shall look like thefollowing:

--- GRUP W01 W24X162 20.007.72224.80 1 1.001.00 7.8490 GRUP W02 W24X131 20.007.72224.80 1 1.001.00 7.8490 --- Click to select Section from the Library Select wide flange only

Save the model as sacinp.dat_05 Section 7 Joint connection design Step 1

Include only the jacket in the current active window. Exclude the deck, piles, conductors, and wishbone element from the current view.

Go to “Display”>“Group Selections” and exclude group PL1-PL5, W01, W02, CON, DL6- DL7, and W.B. Check off “show unattached joints” and then click on “Apply”. Refer to the picture below.

Step 2

Go to “Joint”> “Connection” > “Automatic Design”. Check the box “Offset braces to outside of chord”. For “Gapping option” use “Move Brace”, and for “Brace Move” use “Along Chord”. Set Gap = 5 cm and Gap size option to “Minimum only”. Select “Use existing offsets if gap criteria is met”.

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length option” to “API minimum requirements”. Select “Increase joint can lengths only”, seee above two pictures for the detail options to be selected and click on “Apply” to create the joint can model.

The leg member’s segment lengths are automatically updated and the member end offsets of each brace member are created automatically.

Step 3

Create dummy members to connect the guide joint to the framing joint created in last step. The conductor and frame connection model is shown in the picture below.

DUM = 12.75” x .375”

Repeat the steps above to build the conductor connection elevation -21.0, 2.0 and 15.3. Save the model to sacinp.dat_06.

The final updated Can length for legs shall look like the following:

--- GRUP LG1 123.19 4.445 20.007.72234.50 1 1.001.00 0.500F7.84902.10 GRUP LG1 119.38 2.540 20.007.72224.80 1 1.001.00 0.500F7.8490 GRUP LG1 123.19 4.445 20.007.72234.50 1 1.001.00 0.500F7.84901.76 GRUP LG2 123.19 4.445 20.007.72234.50 1 1.001.00 0.500F7.84902.16 GRUP LG2 119.38 2.540 20.007.72224.80 1 1.001.00 0.500F7.8490 GRUP LG2 123.19 4.445 20.007.72234.50 1 1.001.00 0.500F7.84901.63 GRUP LG3 123.19 4.445 20.007.72234.50 1 1.001.00 0.500F7.84902.33 GRUP LG3 119.38 2.540 20.007.72224.80 1 1.001.00 0.500F7.8490 GRUP LG3 123.19 4.445 20.007.72234.50 1 1.001.00 0.500F7.84901.60 GRUP LG4 123.19 4.445 20.007.72234.50 1 1.001.00 0.500 7.8490 --- Section 8 Define deck beam offsets

Step 1

Go to “Display”>“Plan” and select plan at 15.3m. Exclude group DUM, W.B and CON from current view.

Step 2

Go to “Member” > “Offsets…” and drag a window to pick all members in current view (Selected members will be highlighted in red).

Change “Offset Type to “Top of Steel”. Click on “Apply” to create the offsets. Refer to picture on the right.

Note: The deck beam properties must be defined before you can define the offset type to “Top of Steel”.

Step 3

Repeat above two steps to define the offset for the beams at Plan EL 23.00m. Save the model to sacinp.dat_06.

Section 9 Define member code check properties Define Ky/Ly for horizontal framings:

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79.50 m and H21 members in XY plane Z=-50.0 m

Use “Property” > “Effective Length” > “Ly” to modify Ly factor for H31 members in XY plane Z=-21.0 m and H41 members in XY plane Z=2.0 m

Section 10 Define deck weight (Area weight)

Step 1 Add cellar deck surface weight ID (CELLWT1)

Using “Weight” > “Surface Definition” input “CELLWT1” for Surface ID, pick up joint 71BD, 71ED, and 74BD for local coordinate joints. Input 0.5 for Tolerance, and pick up71BD, 71ED, 74ED and 74BD by holding CTRL key for Boundary joints. Select load direction to “Members in local Y” and then click Apply to add this surface ID definition.

Step 2 Add main deck surface weight ID (MAINWT1)

Using “Weight” > “Surface Definition” input “MAINWT1” for Surface ID. Pick up joint 81BD, 81FD and 84BD for local coordinate joints, input 0.5 for Tolerance, and pick 81BD, 81FD, 84FD and 84BD by holding CTRL key for Boundary joints. Select load direction to “Local Y” and then click Apply to add this surface ID definition.

Step 3 Add weight group AREA by adding surface weight for deck Engineering Dynamics, Inc. Training 2011

Using “Weight” > “Surface Weight” input AREA as Weight Group and AREAWT as Weight ID, input weight pressure of 0.5 kN/m2 for the cellar deck and move CELLWT1 to “Included Surface IDs” and click “Apply”. Then input a weight pressure of 0.75 kN/m2 for the main deck

and move MAINWT1 to “Included Surface IDs” and click “Apply”. Step 4 Add weight group LIVE by adding surface weight

Add weight group LIVE by using surface weight feature as in step 3. Weight ID MAINLIVE includes the main deck weight pressure of 5.0 kN/m2and ID CELLLIVE includes the cellar

deck weight pressure = 2.5kN/m2.

The added surface IDs and surface weights shall look like following:

--- SURFID CELLWT1 LY 71BD 71ED 74BD 0.500

SURFDR 71BD 71ED 74ED 74BD

SURFID MAINWT1 LY 81BD 81FD 84BD 0.152 SURFDR 81BD 81FD 84FD 84BD

SURFWTAREA 0.500AREAWT 1.001.001.00CELLWT1 SURFWTAREA 0.750AREAWT 1.001.001.00MAINWT1 SURFWTLIVE 2.500CELLLIVE 1.001.001.00CELLWT1 SURFWTLIVE 5.000MAINLIVE 1.001.001.00MAINWT1

--- Section 11 Define deck weight (Equipment weight)

Step 1 Define Skid1

Use “Weight” > “Footprint Weight”

Weight group is EQPT and Footprint ID is SKID1;

Weight = 1112.05 kN; Footprint center (5.0, 2.0, 23.0); Relative weight center (0, 0, 3.0) Skid Length = 6 m; Skid Width = 3 m; 2 skid beams in X direction (longitudinal)

Click Apply and the summation of forces will be shown on a pop-up window. To save the input footprint weight select Keep.

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Weight group is EQPT and Footprint ID isSKID2

Weight = 667.23 kN; Footprint center (-5.0, -7.0, 23.0); Relative weight center (0, 0, 2.5) Engineering Dynamics, Inc. Training 2011

Skid Length = 6 m; Skid Width = 2.5 m; 2 skid beams in X direction (longitudinal) Step 3 Define Skid4

Weight group ID is EQPT and Footprint ID is SKID4

Weight = 155.587 kN; Footprint center (10.0, 6.0, 23.0); Relative weight center (0, 0, 4.0) Skid Length = 6 m; Skid Width = 3 m; 3 skid beams in X direction (longitudinal)

Step 4 Define Skid3

Weight group is EQPT and Footprint weight ID is SKID3

Weight = 444.82 kN; Footprint center (5.0, 0.0, 15.3); Relative weight center (0, 0, 2.0) Skid Length = 6 m; Skid Width = 2.5 m; 2 skid beams in X direction

The added EQPT footprint weights shall looks like following:

--- WGTFP EQPT1112.05SKID1 5.000 2.00023.000R 3.0006.0003.000 2 WGTFP2 1.001.001.00.152L WGTFP EQPT667.230SKID2 -5.000-7.00023.000R 2.5006.0002.500 2 WGTFP2 1.001.001.00.152L WGTFP EQPT155.587SKID4 10.000 6.00023.000R 4.0006.0003.000 3 WGTFP2 1.001.001.00.152L WGTFP EQPT444.820SKID3 5.000 15.300R 2.0006.0002.500 2 WGTFP2 1.001.001.00.152L --- Section 12 Define misc weight on the deck and the jacket

Step 1 Walkway on the main and cellar decks

Go to “Weight” > “Member Weight” and hold control key to select all members on the east side of the decks, and enter the following data:

Weight group: MISC Weight ID: Walkway

Weight Category: Distribute Coordinate system: Global Initial weight value: 2.773 kN/m Final weight value: 2.773 kN/m Load dir. factors: Defaults

Click on “Apply” and keep the weight. Step 2 Enter crane weight

Go to “Weight” > “Joint

Weight” and pick up joint

804L and enter the data: Weight Group: MISC Weight ID: CRANEWT Weight: 88.964kN

Load dir. Factors: Defaults Click on “Apply” then

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select “Keep”, see pictures on the right.

Step 3 Enter the Firewall weight

Go to “Weight” > “Member weight” and select the following members: 703L-74BD, 7102- 7103, 7106-7107, and then enter the following data:

Weight Group: MISC Weight ID: FIREWALL Weight Cate.: concentrated Coord system: Global Concen. Weight: 15.0kN Distance: 1.5m

Load factors: Defaults Click on “Apply” and select to “Keep” the weight, see pictures on the right for details.

Step 4 Enter Padeye weight on the jacket

Go to “Weight” > “Joint Weight” and pick up joint 501L, 502L, 503L and 504L, and enter the following data:

Weight group: LPAD Weight ID: PADEYE Weight: 2.0kN

Check on “Include buoyancy

Density: 7.849 ton/m^3 Click on “Apply” and “Keep”, see pictures on right for details.

Step 5 Enter the walkway weight at boat landing elevation (EL 2.0m)

Go to “Weight” > “Member Weight” and pick all the members at EL 2.0 plan except the wellbay members and then enter the data as following:

Group ID: WKWY Weight ID: WLKWAY Weight Category: Distributed Coord. System: Global Initial weight: 1.5kN/m Final weight: 1.5kN/m Load dir. Factors: Defaults Include buoyancy: Yes & wave load: Checked Density: 1.5ton/m^3

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picture on the right for details. Step 6 Define Anode weight

Go to “Display” > “Volumes” and select Type of volume to “Volumes to include”. Select joint 101L to get the min. Z-coordinate and select joint 301X to get the max. Z-coordinate, and then click Apply. This will display only the part of jacket with anode protection.

Go to “Display” > “Group selection” to exclude group DUM, PL1-PL5, W.B, CON, H13-H14, H23-H24 and H32-H33.This will exclude the wishbone, conductor, pile, and horizontal elements from the current view.

Go to “Weight” > “Anode Weight” and drag a window to select all the members in the current view and enter the data as following:

Weight group ID: ANOD Weight ID: Anode

Anode weight: 2.5kN # Anodes: 2/Member Anode space: Equal Include Buoyancy: On Density: 2.70tonne/m^3

Click on “Apply” and “Keep” the weight, see picture on right for details.

Save the mode to Sacinp.dat_07.

Part of jacket weights shall look like following:

--- WGTMEMANOD101L101X 6.040 2.500 1.001.001.00GLOBCONC 2.700ANODE

WGTMEMANOD101L101X 12.080 2.500 1.001.001.00GLOBCONC 2.700ANODE WGTMEMANOD103L102X 6.040 2.500 1.001.001.00GLOBCONC 2.700ANODE WGTMEMANOD103L102X 12.080 2.500 1.001.001.00GLOBCONC 2.700ANODE … … WGTJT LPAD 2.000PADEYE 501L 7.849 1.0001.0001.000 WGTJT LPAD 2.000PADEYE 502L 7.849 1.0001.0001.000 WGTJT LPAD 2.000PADEYE 503L 7.849 1.0001.0001.000 WGTJT LPAD 2.000PADEYE 504L 7.849 1.0001.0001.000 … …

WGTMEMWKWY401L4101 1.500 1.5001.001.001.00GLOBUNIF 1.500WLKWAY WGTMEMWKWY4101402L 1.500 1.5001.001.001.00GLOBUNIF 1.500WLKWAY WGTMEMWKWY401L4103 1.500 1.5001.001.001.00GLOBUNIF 1.500WLKWAY

--- Section 13 Deck Loads

To create inertia loads from various weights defined on deck structure three steps need to be performed:

Step 1

Define the center of the acceleration: Go to “Weight”> “Center of Roll”, and define center ID CEN1 at (0.0, 0.0, 0.0) location. Then select “Apply”

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Step 2

Define the accelerations:

Use “Environmental”> “Loading”>

“Weight”: Check off Acceleration and

define 1.0g in Z direction for load condition AREA, EQPT, LIVE and MISC.

Picture on the right shows the sample of load case AREA.

Step 3

Use the weight groups to create the loads:

“Environmental”> “Loading”>

“Weight”: Check off Include weight group.

select weight group AREA, EQPT, LIVE and MISC to be included in load case. Use Load condition AREA, EQPT, LIVE and MISC respectively.

Note: EQPT, LIVE, and MISC will already have acceleration defined from above, but included weight group needs to be added also.

The picture shows the load case AREA definition.

Save the model to Sacinp.dat_08

Weights defined on the jacket will be added to the environmental load conditions to account forthe possible buoyancy and possible wave loads.

The added inertia load cases shall look like following:

--- LOAD

LOADCNAREA INCWGT AREA

ACCEL 1.00000 N CEN1

LOADCNEQPT INCWGT EQPT ACCEL 1.00000 N CEN1 LOADCNLIVE INCWGT LIVE ACCEL 1.00000 N CEN1 LOADCNMISC INCWGT MISC ACCEL 1.00000 N CEN1 --- Section 14 Environmental Loading

Step 1 Define drag and mass coefficients

Use “Environmental”> “Global Parameters”> “Drag/Mass Coefficient” to define the data (Shown in the picture).

Cd=0.6 and Cm=1.2 for both clean and fouled members. All the members have same Cd and Cm.

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Step 2 Define marine growths Go to “Environment”>“Global

Parameters”>“Marine growth” to enter

the data shown in the picture on the right.

The added marine growth override lines shall look like following:

--- MGROV

MGROV 0.000 60.000 2.500 1.400 MGROV 60.000 79.500 5.000 1.400

--- Step 3 Hydrodynamic modeling

Go to “Environment”>“Global

Parameters”>“Member Group Overrides”

Override the jacket leg members with group ID LG1-LG3 That need to take into account the load increase due to the appurtenant structures like J-tubes and Risers. Highlight groups LG1-Lg3 that the overrides need to be added to. The picture on the right indicates that the drag and mass coefficients have been factored by 1.5 to account for the load increases.

The hydrodynamic model data should look like following:

--- GRPOV GRPOV LG1 F 1.501.501.501.50 GRPOV LG1 F 1.501.501.501.50 GRPOV LG1 F 1.501.501.501.50 GRPOV LG2 F 1.501.501.501.50 GRPOV LG2 F 1.501.501.501.50 GRPOV LG2 F 1.501.501.501.50 GRPOV LG3 F 1.501.501.501.50 GRPOV LG3 F 1.501.501.501.50 GRPOV LG3 F 1.501.501.501.50 GRPOVAL PL1NN 0.001 0.001 0.001 GRPOVAL PL2NN 0.001 0.001 0.001 GRPOVAL PL3NN 0.001 0.001 0.001 GRPOVAL PL4NN 0.001 0.001 0.001 GRPOV W.BNF 0.001 0.001 0.001 0.001 0.001 --- Step 4 Environmental loading

Operating Storm (three directions considered: 0.00, 45.00, 90.00): load case P000, P045, P090 Jacket weight groups ANOD and WKWY should be included in all three load cases by using

“Environment” > “Loading” > “Weight” > “Include Weight Group” to account for weight,

buoyancy and wave/current loads.

Go to “Environment”> “Loading”> “Seastate” to define the wave, current, wind and dead/buoyancy load parameters. The data can be found in the design specification, and the pictures below show the details of load case P000.

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The 3 operating storm load case lines shall look like following:

--- LOADCNP000 INCWGT ANODWKWY WAVE WAVE1.00STRE 6.10 12.00 0.00 D 20.00 18MS10 1 WIND WIND D 25.720 0.00 AP08 CURR CURR 0.000 0.514 0.000 -5.000BC LN CURR 79.500 1.029 DEAD DEAD -Z M BML LOADCNP045 INCWGT ANODWKWY WAVE WAVE1.00STRE 6.10 12.00 45.00 D 20.00 18MS10 1 WIND WIND D 25.720 45.00 AP08 CURR CURR 0.000 0.514 45.000 -5.000BC LN CURR 79.500 1.029 DEAD DEAD -Z M BML LOADCNP090 INCWGT ANODWKWY WAVE WAVE1.00STRE 6.10 12.00 90.00 D 20.00 18MS10 1 WIND WIND D 25.720 90.00 AP08 CURR CURR 0.000 0.514 90.000 -5.000BC LN CURR 79.500 1.029 DEAD DEAD -Z M BML

--- Extreme Storm (three directions considered: 0.00, 45.00, 90.00): load case S000, S045 andS090 Extreme storm load cases can be defined similar as the operating storm load cases, except 100- year storm criteria are used to generate the environmental forces. Jacket weight groups ANOD and WKWY should be included in all three load cases. The water depth should be overridden to consider the high tide. The following pictures show the detailed input data from the

Specification.

The 3 extreme storm load case lines shall look like following:

--- LOADCNS000

INCWGT ANODWKWY WAVE

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WIND

WIND D 45.170 0.00 AP08

CURR CURR 0.000 0.514 0.000 -5.000BC LN CURR 81.000 1.801 DEAD DEAD -Z 81.000 M BML LOADCNS045 INCWGT ANODWKWY WAVE WAVE1.00STRE 12.19 81.00 15.00 45.00 D 20.00 18MS10 1 WIND WIND D 45.170 45.00 AP08 DEAD DEAD -Z 81.000 M BML CURR CURR 0.000 0.514 45.000 -5.000BC LN CURR 81.000 1.801 45.000 LOADCNS090 INCWGT ANODWKWY WAVE WAVE1.00STRE 12.19 81.00 15.00 90.00 D 20.00 18MS10 1 WIND WIND D 45.170 90.00 AP08 CURR CURR 0.000 0.514 90.000 -5.000BC LN CURR 81.000 1.801 90.000 DEAD DEAD -Z 81.000 M BML --- Section 15 Load combination and code check options

Step 1 Load combination

Six load combinations OPR1, OPR2, OPR3, STM1, STM2 and STM3 will be added into the model. Three of them are corresponding to operating storms and the other three are

corresponding to extreme storms. Load factor of 1.1 will be used for environmental loads. The live load will be included with a factor of 0.75 in extreme storm load combinations.

Go to “Load”>“Combine load conditions” to define the load combinations. The following two pictures show the combinations of operating and extreme storm conditions.

The load combination lines shall look like following:

--- LCOMB

LCOMB OPR1 AREA1.0000EQPT1.0000LIVE1.0000MISC1.0000P0001.1000 LCOMB ORP2 AREA1.0000EQPT1.0000LIVE1.0000MISC1.0000P0451.1000 LCOMB ORP3 AREA1.0000EQPT1.0000LIVE1.0000MISC1.0000P0901.1000 LCOMB STM1 AREA1.0000EQPT1.0000LIVE0.7500MISC1.0000S0001.1000 LCOMB STM2 AREA1.0000EQPT1.0000LIVE0.7500MISC1.0000S0451.1000 LCOMB STM3 AREA1.0000EQPT1.0000LIVE0.7500MISC1.0000S0901.1000

--- Step 2 Analysis load case selection

Go to “Options”> “Load condition

selection” to select all the load

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picture on the right shows the input.

Step 3 Allowable stress modification factor (AMOD)

Allowables can be increased by 1/3 based on API code, and this should be entered using the AMOD line. Go to “Options” > “Allowable stress/Mat Factor” and enter the data as shown in the picture below.

Add unity check partition line (UCPART). Go to “Options”>“Unity Check Ranges” and enter the data as shown in the picture below.

The LCSEL, UCPART and AMOD lines shall look like following:

--- LCSEL ST OPR1 ORP2 ORP3 STM1 STM2 STM3

UCPART 0.5000.5001.0001.000300.0 AMOD

AMOD STM1 1.330STM2 1.330STM3 1.330

--- Save the model to Sacinp.dat_09

Engineering Dynamics, Inc. Training 2011 Linear Static Analysis - 1

Linear Static Analysis

Section 1 Create the static analysis directory and separate the model file. Step 1 Create the directory for static analysis

Under “Training Project”, create “Static” subdirectory; copy sacinp.dat_09 to the directory, and

make this directory current. Step 2 Separate the model

Open sacinp.dat_09 with Precede and then go to File/Save As and select “Model data only”, and click-on “OK” to save the model file to sacinp.dat. See picture below.

Step 3 Separate the Environmental load

Go to File/Save As and select “Seastate data only”, click-on “OK” to save the separated seastate input file to seainp.dat. See picture below.

Section 2 Create the static analysis run file Step 1 Select the analysis type and sub-type Engineering Dynamics, Inc. Training 2011 Linear Static Analysis - 2

Click on “Analysis Generator” from the Executive window and select “Statics” for Type and “Static

analysis” for Subtype. See below picture for details. Step 2 Select the Seastate analysis options

Check and click on “Edit Environmental Loading Options” to active the Seastate program and get

the Seastate Analysis Options shown as below.

Select the option to match the definition in the picture below. Click on “O.K” to save the option. Engineering Dynamics, Inc. Training 2011

Linear Static Analysis - 3

Step 3 Select member code check options

Click on “Edit Element Check Options” to get the code check option window and set the options Detailed as following:

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Use Post input file: “No”

Code criteria: WSD AISC 9th/API 21st edition

Stress/code check location: 2/2 Report option: Override the model Following reports should be turned on: Joint deflection

Joint reaction Member end forces UC range

Click-on “OK” to save the options.

Section 3 Run the analysis and review the results Step 1 Define/change the result file extension name

Change the file ID to “DAT” and click on “ID” icon to apply.

Step 2 Select model input file, the model file is saved in step 2 of Section 1. Step 3 Select or check the Seastate input file.

Step 4 Run the analysis.

See below picture for the location of above options. Step 5 Check results

Option 1: View results in Postvue Database, as shown below.

Type in or select the file ID here Click here to apply

Click here to run the analysis

Check here for the file

extension change Click here to select model input file

Option 2: View results from post listing file.

--- SACS Release 5.3 EDI

ID=00000302

Jacket Definition DATE 12-FEB-2011 TIME 14:58:55 PST PAGE 160

SACS-IV MEMBER UNITY CHECK RANGE SUMMARY

GROUP III - UNITY CHECKS GREATER THAN 1.00 AND LESS THAN*****

MAXIMUM LOAD DIST AXIAL BENDING STRESS SHEAR FORCE SECOND-HIGHEST THIRD-HIGHEST MEMBER GROUP COMBINED COND FROM STRESS Y Z FY FZ KLY/RY KLZ/RZ UNITY LOAD UNITY LOAD ID UNITY CK NO. END N/MM2 N/MM2 N/MM2 KN KN CHECK COND CHECK COND

803L-8104 W01 1.064 OPR3 0.0 -5.42 -137.45 15.28 -5.12 230.20 18.9 64.6 1.001 OPR2 0.947 OPR1 804L-83FD W01 1.215 OPR3 0.0 0.01 -173.58 8.96 -3.80 241.87 18.9 64.6 1.189 OPR2 1.151 OPR1 8102-8103 W01 1.083 OPR3 5.0 -4.86 146.69 -7.64 0.01 160.96 18.9 64.6 1.077 OPR2 1.076 OPR1

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8103-802L W01 1.632 OPR1 5.0 -5.17 -221.12 -14.84 -5.93 -503.48 18.9 64.6 1.556 OPR2 1.486 OPR3 8104-8105 W01 1.327 OPR3 5.0 -5.42 182.97 -7.16 0.09 204.14 18.9 64.6 1.302 OPR2 1.280 OPR1 8105-804L W01 1.903 OPR1 5.0 -5.29 -265.90 -8.30 -3.11 -609.63 18.9 64.6 1.864 OPR2 1.822 OPR3 802L-804L W02 1.760 OPR3 10.0 -2.24 -178.72 -6.53 -1.14 -606.86 38.5 132.5 1.726 OPR2 1.614 OPR1 8109-8111 W02 1.109 OPR1 2.0 0.03 178.92 2.95 -0.22 183.61 15.4 53.0 1.106 OPR2 1.097 OPR3 8111-8105 W02 1.041 OPR3 0.0 0.06 158.34 -9.82 4.71 -201.74 11.6 39.7 1.025 OPR2 1.023 OPR1 81BD-801L W02 1.836 OPR1 4.0 -0.01 -290.32 -9.73 -2.69 -786.05 15.4 53.0 1.824 OPR3 1.795 OPR2 --- Engineering Dynamics, Inc. Training 2011

Static analysis with PSI- 1

Static Analysis with Non-Linear Foundation

Section 1 Create a PSI input data file

Step 1 Create a new folder and name it ‘Static PSI”, and then make it the current folder. Copy SACINP.DAT and SEAINP.DAT files from ‘Static” directory to current folder. Step 2 Create PSI input data file

Click-on “Data file” icon to launch Datagen program, and select “Create new data file” and click-on OK to get the second window pop-up, as shown below; select “Pile Soil Interaction” as the analysis type and make sure the unit is Metric KN. Click-on Select and skip the “Title” and get next step to define the analysis options..

Step 3 Define analysis options

Leave default options for both “General” and “Output Options”, and click “Next”. Engineering Dynamics, Inc. Training 2011

Static analysis with PSI- 2 Step 4 Select the results to plot

Click-on “No” to LCSEL and PILSUP cards. Click on “Yes” to PLTRQ card to get Plot Option window and select the options shown below.

Click-on “Next” and select “Include all piles in plot”, select all load cases to be plotted. Do not define plot size and specify pile section data until get Pile Group definition.

Step 5 Define pile group

Define two pile groups and one conductor group, the pile group ID =”PL1” and “PL2”; conductor group ID =”CND”. The first pile group segment length is 10m and second segment has length of 30m with available end bearing area of 0.656m^2.

Engineering Dynamics, Inc. Training 2011 Static analysis with PSI- 3

Click-on “More” to add the segments or groups, and click-on “Next” to finish the pile group definition.

Step 6 Define the piles

Define the pile head joint, batter joint, pile group ID and soil ID as shown in following picture for the four piles, and repeat to define conductors.

Click-on “More” to add a pile and click-on “Next” to finish the pile definition and get to next step.

Click here to add more groups Click here to get to next Engineering Dynamics, Inc. Training 2011

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Static analysis with PSI- 4 Step 7 Define T-Z data type

The picture on right shows the type of axial data can be defined in SACS system. The data for the training is T-Z data. Select “User Defined T-Z Curves” and click-on “Next” to get next step.

Step 8 Define T-Z axial header data

The header data defines the total number of soil strata, Z-factor, Soil ID and the maximum data point of any T-Z curves. The data should be got from the Design Specification for this training, and is shown in following picture.

Click-on next to get to next step. Step 9 Define T-Z soil stratum data

This step defines the soil stratum information followed by soil data of each stratum (Step 10), the data needs to be defined is number of point of the curve, stratum location and T factors;

following picture shows the stratum definition of the top soil. Step 10 Define the soil data of the stratum

The data is from the spec document, the picture on right shows the soil at 0.0m location.

Repeat Step 9 and 10 to enter all 8 soil T-Z curves.

Step 11 Define end bearing data

The picture below will show up when finish the step 10. Click-on “Yes” to enter the Q-Z axial header data.

Define the Q-T axial header data shown in below picture, click-on “Next” to accept the data and get to soil stratum data.

Define the soil stratum data as shown in following two pictures and repeat it for all the stratums. Step 12 Torsional data

The torsional stiffness of the soil can be defined as linear spring, following two pictures gives the detail of the input.

Step 13 P-Y data input

The P-Y data input is similar to Axial T-Z data, follow the direction of Step 7 to 10 and get the data from the soil report to finish the input.

Following two pictures show the soil type selection and P-Y header definition.

Following two pictures show the stratum and soil data definition at 0.0m location, repeat the input to define all the P-Y soils at rest locations.

Save the file and name it PSIINP.DAT. Section 2 Static analysis with PSI

Your current directory should have three input files: SEAINP.DAT containing the loading condition, SACINP.DAT containing the model information includes the weight definition and

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PSIINP.DAT containing the pile model information.

Step 1 Select analysis type and options File ID: dat

Analysis type: Static

Analysis subtype: Static analysis with Pile/Soil Interaction Analysis options: selections are shown in the picture below Step 2 Edit analysis options

Click-on <Edit Environmental Loading Options> to get the window shown below and make selections as shown in the window, click-on “OK” when finish; Click-on <Member code check options> to define the code option shown in below window on right:

Code option: API RP 2A 21th edition/AISC 9th edition

Segment to be checked: 2 for both segmented and non-segmented member

Override the report to include Joint deflection, Joint reaction, Member end forces and the UC range report.

Step 3 Define input files and run the analysis

Select the input files as shown in below window and check the output file names, click-on “Run Analysis” Tab to run the analysis.

Section 3 Check the analysis results

Member code check results can be checked from post listing file or Postvue database, see below. --- PSI SAMPLE ANALYSIS DATE 12-FEB-2011 TIME 16:10:54 PST PAGE 158

SACS-IV MEMBER UNITY CHECK RANGE SUMMARY

GROUP III - UNITY CHECKS GREATER THAN 1.00 AND LESS THAN*****

MAXIMUM LOAD DIST AXIAL BENDING STRESS SHEAR FORCE SECOND-HIGHEST THIRD-HIGHEST MEMBER GROUP COMBINED COND FROM STRESS Y Z FY FZ KLY/RY KLZ/RZ UNITY LOAD UNITY LOAD ID UNITY CK NO. END N/MM2 N/MM2 N/MM2 KN KN CHECK COND CHECK COND

102P-202P PL1 1.438 STM1 0.0 -77.40 -114.13 111.13 -144.24 165.19 81.9 81.9 0.694 STM2 0.632 STM3 103P-203P PL1 1.396 STM3 0.0 -84.84 -134.10 13.98 -18.21 187.41 81.5 81.5 0.751 STM2 0.733 STM1 104P-204P PL1 1.636 STM2 0.0 -97.92 -140.61 -12.02 15.35 199.60 81.9 81.9 1.454 STM1 1.179 STM3 803L-8104 W01 1.065 OPR3 0.0 -5.42 -137.51 15.34 -5.14 230.24 18.9 64.6 1.002 OPR2 0.948 OPR1 804L-83FD W01 1.215 OPR3 0.0 0.01 -173.57 8.95 -3.79 241.85 18.9 64.6 1.189 OPR2 1.150 OPR1 8102-8103 W01 1.083 OPR3 5.0 -4.86 146.66 -7.75 -0.03 160.83 18.9 64.6 1.078 OPR2 1.077 OPR1 8103-802L W01 1.633 OPR1 5.0 -5.18 -221.15 -14.97 -5.99 -503.52 18.9 64.6 1.557 OPR2 1.489 OPR3 8104-8105 W01 1.327 OPR3 5.0 -5.42 182.97 -7.23 0.08 204.19 18.9 64.6 1.302 OPR2 1.280 OPR1 8105-804L W01 1.902 OPR1 5.0 -5.29 -265.76 -8.28 -3.11 -609.48 18.9 64.6 1.863 OPR2 1.821 OPR3 802L-804L W02 1.758 OPR3 10.0 -2.24 -178.44 -6.55 -1.14 -606.56 38.5 132.5 1.724 OPR2 1.613 OPR1 --- Engineering Dynamics, Inc. Training 2011

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Static analysis with PSI- 11

Pile check results are listed in psi listing file.

--- PSI SAMPLE ANALYSIS DATE 12-FEB-2011 TIME 16:10:51 PSI PAGE 465

PSI SAMPLE ANALYSIS

* * * P I L E M A X I M U M U N I T Y C H E C K S U M M A R Y * * *

PILE GRUP LOAD ******* PILEHEAD FORCES ******* * PILEHEAD DISPLACEMENTS * *********** STRESSES AT MAX. UNITY CHECK ************

JT. CASE AXIAL LATERAL MOMENT AXIAL LATERAL ROTATION DEPTH AXIAL FBY FBZ SHEAR COMB. UNITY KN KN KN-M CM CM RAD M --- N/MM2 --- CHECK 101P PL1 OPR1 2045.22 173.63 386.2 0.16 1.90 0.001688 0.0 25.00 18.47 1.67 4.22 -43.54 0.268 OPR2 -1233.30 196.10 430.6 0.10 2.18 0.001947 10.4 -9.24 -26.42 -0.09 1.11 -35.66 0.219 OPR3 -2139.58 289.73 730.6 0.16 3.44 0.002927 0.0 -26.15 35.07 1.07 7.13 -61.23 0.365 STM1 3125.92 886.34 4514.2 -0.23 30.98 0.014261 0.0 38.20 216.77 2.46 20.44 254.99 1.071 STM2 5852.36 841.32 3848.9 -0.43 24.92 0.012223 0.0 71.52 184.68 7.58 18.66 256.36 1.110 STM3 2729.80 811.41 3849.2 -0.20 23.74 0.011847 0.0 33.36 184.85 0.85 18.91 218.21 0.917 102P PL2 OPR1 4660.75 156.22 375.3 0.35 1.70 0.001471 0.0 56.96 17.99 1.04 3.89 -74.98 0.480 OPR2 -2774.74 183.64 411.1 0.21 2.04 0.001816 0.0 -33.91 19.71 -1.03 4.51 -53.65 0.334 OPR3 -703.99 263.77 615.9 0.06 3.11 0.002723 10.4 -5.38 -37.39 -0.04 1.52 -42.77 0.257 STM1 9529.89 792.77 4871.0 0.71 30.61 0.015049 0.0 116.47 233.62 11.84 22.86 -350.39 1.536 STM2 -3152.27 775.31 3967.1 0.24 24.19 0.012492 0.0 -38.53 190.50 -2.44 19.83 -229.04 0.966 STM3 3864.15 793.62 3584.8 -0.28 21.89 0.011275 0.0 47.23 172.13 2.72 18.20 219.38 0.936 103P PL1 OPR1 1876.81 176.84 395.9 0.14 1.93 0.001709 0.0 22.94 18.91 1.95 4.30 -41.95 0.256 OPR2 -3830.00 198.40 499.9 0.29 2.14 0.001790 0.0 -46.81 -23.97 -1.22 4.91 -70.81 0.444 OPR3 -5919.23 255.29 688.1 0.44 2.95 0.002458 0.0 -72.34 -33.01 1.48 6.50 -105.39 0.664 STM1 3287.87 888.94 4526.0 -0.24 31.12 0.014285 0.0 40.18 -217.34 2.02 20.44 257.54 1.083 STM2 -3354.38 801.30 4291.3 0.25 26.45 0.013078 0.0 -41.00 -206.01 -5.25 20.58 -247.07 1.042 STM3 10445.87 724.51 4122.7 0.78 23.08 0.012172 0.0 127.66 197.98 0.60 20.79 -325.65 1.446 104P PL2 OPR1 4773.04 159.44 384.3 0.36 1.74 0.001498 0.0 58.33 18.43 0.99 3.97 -76.79 0.491 OPR2 -5510.91 164.94 420.3 0.41 1.76 0.001470 0.0 -67.35 -20.18 0.18 4.13 -87.54 0.561 OPR3 -4560.62 249.15 641.6 0.34 2.89 0.002458 0.0 -55.74 30.72 -2.29 6.26 -86.55 0.540 STM1 9635.55 793.07 4892.1 0.72 30.75 0.015100 0.0 117.76 234.65 11.59 22.92 -352.69 1.546

STM2 12057.11 724.89 4315.2 0.90 24.80 0.013054 0.0 147.36 207.23 1.10 21.56 -354.59 1.583 STM3 -8787.05 717.25 3853.9 0.66 21.46 0.011596 0.0 -107.39 184.87 -8.78 19.98 -292.47 1.292 … …

PSI SAMPLE ANALYSIS DATE 12-FEB-2011 TIME 16:10:51 PSI PAGE 480

* * * P I L E M A X I M U M A X I A L C A P A C I T Y S U M M A R Y * * * PILE GRP ********* PILE ********* ************** COMPRESSION ************* **************** TENSION ***************

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JT PILEHEAD WEIGHT PEN. CAPACITY MAX. CRITICAL CONDITION CAPACITY MAX. CRITICAL CONDITION *MAXIMUM*

O.D. THK. (INCL. WT) LOAD LOAD LOAD SAFETY (INCL. WT) LOAD LOAD LOAD SAFETY UNITY LOAD CM CM KN M KN KN KN CASE FACTOR KN KN KN CASE FACTOR CHECK CASE

101P PL1 106.68 2.50 177.4 40.0 -57792.1 -2139.6 -2139.6 OPR3 27.01 58144.3 5852.4 5852.4 STM2 9.94 0.15 STM2 102P PL2 106.68 2.50 177.4 40.0 -57772.9 -9529.9 -9529.9 STM1 6.06 58125.1 3864.2 3864.2 STM3 15.04 0.25 STM1 103P PL1 106.68 2.50 177.4 40.0 -57792.1 -10445.9 -10445.9 STM3 5.53 58144.3 3287.9 3287.9 STM1 17.68 0.27 STM3 104P PL2 106.68 2.50 177.4 40.0 -57772.9 -12057.1 -12057.1 STM2 4.79 58125.1 0.0 0.0 OPR1 100.00 0.31 STM2 --- Spectral Fatigue - 1

Part 4 -Spectral Fatigue

Preparation

1) Under “Training Project”, create “Spectral Fatigue” subdirectory

2) Under “Spectral Fatigue”, Create “Foundation SE”, “Modes” and “Fatigue” subdirectories.

3) Copy SACINP.STA model file, SEAINP.STA Seastate file and PSIINP.DAT soil data from “\Spectral Earthquake\Static SE” directory to “Foundation SE” directory.

4) Copy SEAINP.DYN from “\Spectral Earthquake\Modes” directory to “Modes” directory

Creating foundation superelement under “Foundation SE” directory,

1) Modifying Model file SACINP.STA for creating foundation superelement suitable for wave response analysis

Live weight factor in weight combination MASS shall be modified from 0.75 to 1.0. 2) Modifying Seastate file SEAINP.STA for create foundation superelement suitable for wave response analysis

Delete load conditions GRVX and GRVY;

Add two new load conditions named as X000 and Y090, wave loads will be generated for 1.5 m wave height at 4.42 sec wave period for both 000 and 090 directions respectively. Stream function will be used for calculating wave force in 18 steps, maximum base shear will be selected for critical position. Weight selection lines INCWGT used to select weight groups ANOD and WKWY for possible wave forces.

Delete load combination EQKS. Combine load combinations SUPX and SUPY with

X000 and Y090 correspondingly.

Modify LCSEL line to only include SUPX and SUPY load combinations. Part of Seastate input file defined shall looks like following:

---

LDOPT NF+Z 1.025 7.85 -79.50 79.50 MN NPNP K LCSEL SUPX SUPY

… LOAD LOADCNDEAD INCWGT ANODWKWY DEAD DEAD -Z M LOADCNMASS INCWGT MASS ACCEL 1.0 N CEN1 LOADCNX000 INCWGT ANODWKWY Spectral Fatigue - 2

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WAVE WAVE STRE 1.5 4.42 0.00 D 0.00 20.0 18MS 0 LOADCNY090 INCWGT ANODWKWY WAVE WAVE STRE 1.5 4.42 90.00 D 0.00 20.0 18MS 0 LCOMB

LCOMB SUPX DEAD 1.0MASS 1.0X000 1.0 LCOMB SUPY DEAD 1.0MASS 1.0Y090 1.0 END

--- 3) Delete Title line of PSIINP.DAT, otherwise it will has problem in following fatigue analysis

4) Creating run file to generate foundation superelement using SUPX and SUPY. In “Analyis Options” > “Foundation” part, select “Create foundation superelement” and input SUPX and SUPY to 1st X and 1st Y load cases respectively, “Max load and

deflections” will be used for pile head load/deflection option.

No “Element Check” and “Postvue” database needed for this analysis. Run analysis.

Spectral Fatigue - 3

Seastate basic load case summary report for spectral fatigue:

---

****** SEASTATE BASIC LOAD CASE SUMMARY ****** RELATIVE TO MUDLINE ELEVATION

LOAD LOAD FX FY FZ MX MY MZ DEAD LOAD BUOYANCY CASE LABEL (KN) (KN) (KN) (KN-M) (KN-M) (KN-M) (KN) (KN) 1 DEAD 0.000 0.000 -5732.595 -30.701 10816.892 0.000 8601.126 2868.558 2 MASS 0.000 0.000 -5493.467 -558.857 8180.357 0.000 0.000 0.000 3 X000 5.435 -0.047 0.984 4.054 445.994 7.828 0.000 0.000 4 Y090 -0.538 25.079 1.352 -1862.846 -43.587 -20.975 0.000 0.000 ---

Seastate combined load case summary report for spectral fatigue:

---

***** SEASTATE COMBINED LOAD CASE SUMMARY ***** RELATIVE TO MUDLINE ELEVATION

LOAD LOAD FX FY FZ MX MY MZ CASE LABEL (KN) (KN) (KN) (KN-M) (KN-M) (KN-M) 5 SUPX 5.435 -0.047 -11225.078 -585.504 19443.244 7.828 6 SUPY -0.538 25.079 -11224.711 -2452.404 18953.664 -20.975 ---

Pile head superelement created for joint 101P for spectral fatigue:

---

*** PILEHEAD STIFFNESS FOR JOINT 101P *** FOR SUPERELEMENT NO. 1

RX RY RZ DX DY DZ

RX 0.352555E+10 0.402477E+05 -0.402477E+04 0.329971E+02 0.122928E+08 -0.122928E+07 RY 0.402477E+05 0.349139E+10 -0.344714E+09 -0.122925E+08 -0.326704E+02 0.326704E+01 RZ -0.402477E+04 -0.344714E+09 0.787252E+08 0.122925E+07 0.326704E+01 -0.326704E+00 DX 0.329971E+02 -0.122925E+08 0.122925E+07 0.756676E+05 -0.864001E+00 0.864001E-01 DY 0.122928E+08 -0.326704E+02 0.326704E+01 -0.864001E+00 0.140090E+06 0.644293E+06

DZ -0.122928E+07 0.326704E+01 -0.326704E+00 0.864001E-01 0.644293E+06 0.651859E+07---

---

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Mode extraction under “Modes” directory,

Create Dynapac run file “Extract Mode Shapes”

Under “Analysis Options” > “Super Element”, select “Import Superelement” and browse in “Foundation SE” directory for DYNSEF.STA file.

Under “Analysis Options” > “Mode Shape”, choose “Use Modal Extraction Options”; input 50 to “Number of Modes” and select “Create added mass of beams”.

Choose “Seastate” options and create “Postvue” database.

Browse in “Foundation SE” directory for SACINP.STA when prompted for “Model

Data file”.

Run Analysis.

Dynpac weight summary report for spectral fatigue:

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************* WEIGHT AND CENTER OF GRAVITY SUMMARY *************

************ ITEM DESCRIPTION ************ ************** WEIGHT ************** ******** CENTER OF GRAVITY ********

X Y Z X Y Z KN KN KN M M M

PLATE ELEMENTS 387.938 387.938 387.938 1.429 0.000 19.699 MEMBER ELEMENTS 7862.998 7862.998 7862.998 2.224 0.041 -36.117

MEMBER ELEMENT NORMAL ADDED MASS 4571.818 4521.894 1490.585 2.360 0.035 -58.247 FLOODED MEMBER ELEMENT ENTRAPPED FLUID 2533.615 2533.615 2533.615 2.199 0.000 -39.503 USER DEFINED WEIGHTS IN DYNPAC 5949.223 5949.223 5949.223 1.558 0.073 17.443

************ TOTAL ************ 21305.593 21255.669 18224.359 2.050 0.043 -19.725--- ---

Dynpac first 10 modal periods and frequencies report for spectral fatigue:

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SACS IV-FREQUENCIES AND GENERALIZED MASS

MODE FREQ.(CPS) GEN. MASS EIGENVALUE PERIOD(SECS) 1 0.299659 7.5884544E+02 2.8208911E-01 3.3371294 2 0.325174 4.5107095E+02 2.3955616E-01 3.0752721 3 0.484080 4.1971794E+02 1.0809529E-01 2.0657762 4 0.724977 1.3777346E+03 4.8193895E-02 1.3793545 5 0.750688 1.2421094E+03 4.4949180E-02 1.3321121 6 0.952139 2.0253514E+03 2.7940825E-02 1.0502664 7 1.501109 7.7224431E+02 1.1241287E-02 0.6661743 8 1.525820 7.6236660E+02 1.0880119E-02 0.6553853 9 1.920944 2.0709272E+02 6.8645310E-03 0.5205774 10 1.966917 1.3535570E+02 6.5473900E-03 0.5084099 --- Spectral Fatigue - 6

Wave Response analysis under “Fatigue” directory,

1) Create Seastate input file SEAINP.000, SEAINP.045 and SEAINP.090 for Transfer function generation

Copy SEAINP.DYN Seastate file from “Modes” directory and rename to SEAINP.000. Input DYN analysis option in col.56-58 for generating loading and hydrodynamic modeling for dynamics. Input title line as “000 DIRECTION TRANSFER

FUNCTION”.

Four load cases 1 through 4 will be added, each load case contain one line of GNTRF transfer function generation line.

For fist load case in 000 direction: 6 waves in 18 steps will be generated using wave steepness 0.05; beginning wave period 10 seconds and period step size 1.00 seconds; transfer function loading will be generated for each wave position and AIRY wave

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theory will be selected. Base shear and overturning moment will be plotted

For second load case in 000 direction, 6 waves with starting period = 4.75 secs and period step size = 0.25 secs.

For third load case in 000 direction, 11 waves with starting period = 3.40 secs and period step size = 0.10 secs.

For fourth load case in 000 direction, 2 waves with starting period = 2.25 secs and period step size = 0.25 secs.

Copy SEAINP.000 Seastate file to SEAINP.045 and SEAINP.090. Modify GNTRF directions to 45.00 for SEAINP.045 and to 90.00 for SEAINP.090.

Part of Seastate input file defined for 000 direction shall looks like following:

---

LDOPT NF+Z 1.025 7.85 -79.50 79.50 MN DYN NPNP K 000 DIRECTION TRANSFER FUNCTION

FILE S … LOAD LOADCN 1 GNTRF AL 6 0.05 10.00 1.00 0.00 18AIRYPF LOADCN 2 GNTRF AL 6 0.05 4.75 0.25 0.00 18AIRYPF LOADCN 3 GNTRF AL 11 0.05 3.40 0.10 0.00 18AIRYPF LOADCN 4 GNTRF AL 2 0.05 2.25 0.25 0.00 18AIRYPF END --- Spectral Fatigue - 7

2) Create wave response input file WVRINP.PLT for transfer function plot

For Wave Response Options, select “ALL” to Load case selection, choose “Generate

Plots”, maximum allowable iterations = -1.

Use Transfer function plot line PLTTF to request Overturning moment and Base shear plot for both period and frequency.

1 to 25 load case selected for transfer function load case TFLCAS. Damping ratio for spectral fatigue use 2% for all modes.

Wave response plot input file defined shall looks like following:

--- WROPT MNPSL ALL -1 PLTTF OM BS PFS TFLCAS 1 25 DAMP 2.0 END --- 3) Create wave response run file and creating transfer function plot for 000 direction Under “Analysis Options” > “Wave Response”, make sure WVRINP.PLT is in Wave Response input file filed.

Under “Analysis Options” > “Seastate”, check “Execute Seastate” and “Seastate file

not in model file” and browse for SEAINP.000.

Browse to “Foundation SE” directory for model data file SACINP.STA, and browse to “Modes” directory for mode and mass file.

Run the analysis and study the generated plots.

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Copy WVRINP.PLT to WVRINP.EQS, in wave options line, select “ES – Equivalent

Static Loads”.

Wave response input file for equivalent loads defined shall looks like following:

--- WROPT MNPSL ALL ES -1 PLTTF OM BS PFS TFLCAS 1 25 DAMP 2.0 END --- Spectral Fatigue - 8

5) Creating and solving equivalent loads for 000 direction

Under “Analysis Options” > “Wave Response”, browse for “WVRINP.EQS”.

Under “Analysis Options” > “Seastate”, select “Execute Seastate” and check “Seastate

input not in model file”, make sure SEAINP.000 appears in the Seastate input file

window.

Start Wizard begin generating wave response run file.

When “Analysis Options” reappears, under “Wave Response” window, select “Solving

equivalent static loads automatically”. Then under “Foundation”, check “Use nonlinear foundation” and browse to “Foundation SE” directory for PSIINP.DAT file.

Choose “Create pile fatigue solution file” for Pile Fatigue Solution File Option. Browse to “Foundation SE” for model data file SACINP.STA.

Browse to “Modes” for mode and mass file. Run Analysis.

6) Use the same procedure as 5) and solving equivalent loads for 045 and 090 directions. 7) Create fatigue input file FTGINP.FTG for spectral fatigue analysis

For fatigue options,

Number of Additional Postfiles = 2 Design life = 20 yrs

Fatigue Time Period = 1.0 yrs

Check “Skip Non-Tubular Elements”, “Use Load Case Dependent SCF’s”, “Prescribe Max SCF” and “Prescribe MIN SCF”

Choose API X prime curve for S-N Curve and Efthymiou method EFT for SCF calculation

For fatigue option 2 line, check “Member Summ. Rep. (Life Order)” and “SCF

Validity Range Check”.

Using joint override lines JNTOVR to define that joints 401L, 403L, 405L and 407L will be checked using API X curve rather than X prime curve.

Using group selection line GRPSEL to remove member groups PL1, PL2, PL3, PL4 and W.B from fatigue calculation.

Using joint selection JSLC line to define only joints 201L, 203L, 205L, 207L, 301L, 303L, 305L, 307L, 401L, 403L, 405L and 407L will be included for fatigue damage evaluations.

Using SCF limits line SCFLM to define max. SCF = 6.0 and min. SCF = 1.5.

SCF Selection line SCFSEL can be used to define for X type joints, Marshall method MSH will be used for SCF calculation.

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of chord.

SEAS line will be used to signal the program to read the Seastate input data file to

determine the SACS load case to wave period and direction correlation. Input first fatigue load case corresponding to direction 000

Using Spectral Wave Fatigue Case FTLOAD to input Fraction of Design Life = 0.47 for 000 direction; input “SPC” into column 32-34 for spectral fatigue case.

Using Scatter Diagram Header SCATD to select Pierson-Moskowitz Spectrum as type of wave spectrum.

Using Scatter Diagram Wave height SCWAV to input sea states wave heights and using Scatter Diagram Freq. of Occurrence SCPER line to input Frequency of Occurrence per wave period.

Percent occurrence for various wave heights and wave periods for 000 direction: Dominant Significant Wave Height (M)

Period (SECS) 0.0 - 0.6 0.6 – 1.4 1.4 – 2.6 1.0 – 2.0 0.15 0.10 0.10 2.0 – 4.0 0.10 0.19 0.11 4.0 – 6.0 0.05 0.08 0.05 6.0 – 10.0 0.02 0.03 0.02

Input second fatigue load case corresponding to direction 045

Percent occurrence for various wave heights and wave periods for 045 direction: Spectral Fatigue - 10

Dominant Significant Wave Height (M) Period (SECS) 0.0 - 0.6 0.6 – 1.4 1.4 – 2.6 1.0 – 2.0 0.10 0.13 0.08 2.0 – 4.0 0.15 0.13 0.10 4.0 – 6.0 0.08 0.08 0.07 6.0 – 10.0 0.03 0.02 0.03

Input third fatigue load case corresponding to direction 090

Percent occurrence for various wave heights and wave periods for 090 direction: Dominant Significant Wave Height (M)

Period (SECS) 0.0 - 0.6 0.6 – 1.4 1.4 – 2.6 1.0 – 2.0 0.13 0.10 0.08 2.0 – 4.0 0.13 0.15 0.10 4.0 – 6.0 0.06 0.09 0.08 6.0 – 10.0 0.03 0.03 0.02

Using Joint Extraction Head EXTRAC line to extract all joints with damage level greater than 0.5 for Interactive Fatigue review.

Fatigue input file defined shall looks like following:

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FTOPT 2 20. 1.0 2. SMAPP MXMNSK LPEFT FTOPT2 PTVC JNTOVR 401L API JNTOVR 403L API Spectral Fatigue - 11 JNTOVR 405L API JNTOVR 407L API GRPSEL RM PL1 PL2 PL3 PL4 W.B JSLC 201L203L205L207L301L303L305L307L401L403L405L407L SCFLM 6.0 1.5 SCFSEL MSH RELIEF SEAS FTLOAD 1 .47 1.0 SPC SCATD D 1.0 1.0 PM SCWAV 0.30 1.0 2.0 SCPER 1.5 .15 .1 .1 SCPER 3.0 .1 .19 .11 SCPER 5.0 .05 .08 .05 SCPER 8.0 .02 .03 .02 FTLOAD 2 .20 1.0 SPC SCATD D 1.0 1.0 PM SCWAV 0.30 1.0 2.0 SCPER 1.5 .10 .13 .08 SCPER 3.0 .15 .13 .10 SCPER 5.0 .08 .08 .07 SCPER 8.0 .03 .02 .03 FTLOAD 3 .33 1.0 SPC SCATD D 1.0 1.0 PM SCWAV 0.30 1.0 2.0 SCPER 1.5 .13 .10 .08 SCPER 3.0 .13 .15 .10 SCPER 5.0 .06 .09 .08 SCPER 8.0 .03 .03 .02 EXTRAC HEAD AE 0.5 END --- 8) Create fatigue run file and run the analysis. Browse for results and using interactive fatigue to review critical joints.

Portion of spectral fatigue analysis report for joint 407L and 403L:

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* * * M E M B E R F A T I G U E R E P O R T * * * (DAMAGE ORDER)

ORIGINAL CHORD REQUIRED

JOINT MEMBER GRUP TYPE OD WT JNT MEM LEN. GAP * STRESS CONC. FACTORS * FATIGUE RESULTS OD WT ID ID (CM) (CM) TYP TYP (M ) (CM) AX-CR AX-SD IN-PL OU-PL DAMAGE LOC SVC LIFE (CM) (CM) 407L 403L-407L H41 TUB 32.38 1.250 Y BRC 12.12 0.00 3.00 6.00 2.35 3.53 5.271789 BL 3.793778 407L 407L-507L LG4 TUB 107.00 3.500 Y CHD 12.12 2.53 4.74 1.59 2.74 1.382290 BL 14.46874 407L 405L-407L H41 TUB 32.38 1.250 Y BRC 12.12 0.00 3.00 6.00 2.35 3.53 1.882799 BR 10.62249 407L 407L-507L LG4 TUB 107.00 3.500 Y CHD 12.12 2.53 4.74 1.59 2.74 .4480346 BR 44.63941 407L 407L-4000 H42 TUB 32.38 1.250 Y BRC 12.12 0.00 3.00 6.00 2.35 3.51 .5309010 BR 37.67181 407L 407L-507L LG4 TUB 107.00 3.500 Y CHD 12.12 2.53 4.71 1.58 2.72 .1215998 BR 164.4740 --- 403L 307L-403L D03 TUB 40.75 1.500 K BRC 12.12 30.96 2.68 2.62 2.78 2.09 .3926162 T 50.94033 403L 303L-403L LG3 TUB 107.00 3.500 K CHD 12.12 2.69 2.74 1.50 1.86 .1846078 TL 108.3378 403L 401L-403L H41 TUB 32.38 1.250 Y BRC 12.12 0.00 3.00 6.00 2.35 3.53 1.836187 BL 10.89213 403L 403L-503L LG4 TUB 107.00 3.500 Y CHD 12.12 2.53 4.74 1.59 2.74 .4494944 BL 44.49443 403L 403L-407L H41 TUB 32.38 1.250 K BRC 12.12 30.96 3.93 5.25 2.35 3.57 5.087764 TL 3.931000 403L 403L-503L LG4 TUB 107.00 3.500 K CHD 12.12 3.33 4.29 1.59 2.77 1.428185 TL 14.00379 403L 403L-4000 H42 TUB 32.38 1.250 Y BRC 12.12 0.00 3.00 6.00 2.35 3.51 .1326569 BL 150.7648

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403L 403L-503L LG4 TUB 107.00 3.500 Y CHD 12.12 2.53 4.71 1.58 2.72 .0221272 BL 903.8660

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9) Foundation pile fatigue analysis

Copy FTGINP.FTG to FTGINP.PIL, delete unrelated lines for pile fatigue analysis.

JNTOVR, GRPSEL, JSLC, SCFSEL, RELIEF and EXTRAC line(s) will be deleted.

Modify fatigue option line 2 and check “Tubular Inline Check”, chose American Welding Society S-N curve AWS for pile fatigue analysis.

Modifying SCF limits line, Max. SCF =1.5 and Min. SCF = 1.0. Pile Fatigue input file defined shall looks like following:

---

FOUNDATION PILE FATIGUE INPUT

FTOPT 2 20. 1.0 2. SMAPP MXMNSK LPEFT FTOPT2 PTVC AWS TI2

SCFLM 1.5 1.0 SEAS FTLOAD 1 .47 1.0 SPC SCATD D 1.0 1.0 PM SCWAV 0.30 1.0 2.0 SCPER 1.5 .15 .1 .1 SCPER 3.0 .1 .19 .11 SCPER 5.0 .05 .08 .05 SCPER 8.0 .02 .03 .02 FTLOAD 2 .20 1.0 SPC SCATD D 1.0 1.0 PM SCWAV 0.30 1.0 2.0 SCPER 1.5 .10 .13 .08 SCPER 3.0 .15 .13 .10 SCPER 5.0 .08 .08 .07 SCPER 8.0 .03 .02 .03 FTLOAD 3 .33 1.0 SPC SCATD D 1.0 1.0 PM SCWAV 0.30 1.0 2.0 SCPER 1.5 .13 .10 .08 SCPER 3.0 .13 .15 .10 SCPER 5.0 .06 .09 .08 SCPER 8.0 .03 .03 .02 END --- Create fatigue run file and run the analysis. Browse for results.

Portion of spectral fatigue analysis report for pile:

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* * * M E M B E R F A T I G U E R E P O R T * * * (DAMAGE ORDER)

ORIGINAL CHORD REQUIRED

JOINT MEMBER GRUP TYPE OD WT JNT MEM LEN. GAP * STRESS CONC. FACTORS * FATIGUE RESULTS OD WT ID ID (CM) (CM) TYP TYP (M ) (CM) AX-CR AX-SD IN-PL OU-PL DAMAGE LOC SVC LIFE (CM) (CM) 27 26- 27 PL1 TUB 91.50 2.500 1.50 1.50 1.50 1.50 .0181906 B 1099.470 27 27- 28 PL1 TUB 91.50 1.500 1.50 1.50 1.50 1.50 .2091573 B 95.62182 --- 427 426- 427 PL1 TUB 91.50 2.500 1.50 1.50 1.50 1.50 .0125490 T 1593.750 427 427- 428 PL1 TUB 91.50 1.500 1.50 1.50 1.50 1.50 .1938635 T 103.1654 --- 227 226- 227 PL2 TUB 91.50 2.500 1.50 1.50 1.50 1.50 .0115914 TL 1725.423 227 227- 228 PL2 TUB 91.50 1.500 1.50 1.50 1.50 1.50 .1679323 TL 119.0956