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AVEVA Plant
(12 Series)
Heating, Ventilation &
Air Conditioning Modelling
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Revision Log
Date Revision Description of Revision Author Reviewed Approved
06/12/2007 0.1 Issued for Review IMP
08/05/2008 0.2 Reviewed IMP KMM
20/05/2008 1.0 Approved for Training 12.0.0.3 IMP KMM RP
30/09/2008 1.1 Issued for Review BT
18/11/2009 1.2 Reviewed BT KB
23/11/2009 2.0 Approved for Training 12.0 SP4 BT KB RP
24/11/2009 2.1 Issued for Review PDMS 12.0.SP5 KB
25/11/2009 2.2 Reviewed KB BG
25/11/2009 3.0 Approved for Training PDMS 12.0.SP5 KB BG RP
Updates
All headings containing updated or new material will be highlighted.
Suggestion / Problems
If you have a suggestion about this manual or the system to which it refers please report it to the AVEVA Group Solutions Centre at gsc@aveva.com
This manual provides documentation relating to products to which you may not have access or which may not be licensed to you. For further information on which products are licensed to you please refer to your licence conditions.
Visit our website at http://www.aveva.com
Disclaimer
Information of a technical nature, and particulars of the product and its use, is given by AVEVA Solutions Ltd and its subsidiaries without warranty. AVEVA Solutions Ltd. and its subsidiaries disclaim any and all
warranties and conditions, expressed or implied, to the fullest extent permitted by law.
Neither the author nor AVEVA Solutions Ltd or any of its subsidiaries shall be liable to any person or entity for any actions, claims, loss or damage arising from the use or possession of any information, particulars or errors in this publication, or any incorrect use of the product, whatsoever.
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All other rights are reserved to AVEVA Solutions Ltd and its subsidiaries. The information contained in this document is commercially sensitive, and shall not be copied, reproduced, stored in a retrieval system, or transmitted without the prior written permission of AVEVA Solutions Limited. Where such permission is granted, it expressly requires that this Disclaimer and Copyright notice is prominently displayed at the beginning of every copy that is made.
The manual and associated documentation may not be adapted, reproduced, or copied in any material or electronic form without the prior written permission of AVEVA Solutions Ltd. The user may also not reverse engineer, decompile, copy or adapt the associated software. Neither the whole nor part of the product described in this publication may be incorporated into any third-party software, product, machine or system without the prior written permission of AVEVA Solutions Limited or save as permitted by law. Any such unauthorised action is strictly prohibited and may give rise to civil liabilities and criminal prosecution.
The AVEVA products described in this guide are to be installed and operated strictly in accordance with the terms and conditions of the respective licence agreements, and in accordance with the relevant User Documentation. Unauthorised or unlicensed use of the product is strictly prohibited.
Printed by AVEVA Solutions on 27 November 2009. © AVEVA Solutions and its subsidiaries 2001 – 2009.
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1 Introduction ... 7 1.1 Aim ... 7 1.2 Objectives ... 7 1.3 Prerequisites ... 7 1.4 Course Structure ... 71.5 Using this Guide ... 7
1.6 Setting up the Training Course ... 8
2 HVAC Design Features ... 9
3 Getting Started ... 11
3.1 Entering a Design Session ... 11
4 The PDMS Database Hierarchy ... 13
4.1 How PDMS Stores Design Data ... 13
5 Routing a Sequence of HVAC Components ... 15
5.1 HVAC Components Representation in the Catalogue ... 15
5.1.1 HVAC Physical Shape ... 15
5.1.2 HVAC Variables ... 15
5.2 Setting HVAC Defaults ... 16
5.2.1 Setting a Default HVAC Specification ... 16
5.2.2 Choosing the HVAC Form Format ... 16
5.2.3 Customising HVAC Forms ... 18
5.3 Creating HVAC Administrative Elements ... 19
5.3.1 Creating a HVAC System Element ... 19
5.3.2 Creating an HVAC Branch Element ... 20
5.4 Creating HVAC Components ... 23
5.4.1 Creating a Fire Damper ... 26
5.4.2 Moving the Fire Damper ... 27
5.4.3 Creating a Composite Component ... 28
5.5 Adding More HVAC Components to the Ductwork ... 30
5.5.1 Creating a Rectangular Radiused Bend ... 30
5.5.2 Repositioning the Rectangular Radiused Bend ... 30
5.5.3 Creating a Rectangular Mitred Offset ... 30
5.5.4 Creating a Second Rectangular Radiused Bend ... 31
5.5.5 Adding a Circular Section Silencer ... 32
5.5.6 Adding a Three-way Component and Terminating the Branch ... 33
5.5.7 Defining the Branch Tail ... 36
Exercise 1 - Creating the HVAC Main Branch ... 37
6 Adding to the HVAC Model ... 38
6.1 The Grid/Tiling Utility ... 38
6.2 Creating Side Branches ... 40
Exercise 2 – Creating HVAC Components using a Grid. ... 47
7 HVAC Splitting ... 48
7.1 Overview ... 48
7.2 The Split HVAC Form ... 49
7.2.1 Branches to Split ... 49
7.2.2 Split Markers ... 50
7.2.3 Split ... 51
Exercise 3 – HVAC Splitting ... 53
8 Hole Management ... 54
8.1 Introduction to Hole Management ... 54
8.1.1 Hole Element Storage ... 54
8.1.2 Request and Approval Workflow ... 55
8.1.3 Non-penetration Managed Holes ... 57
8.1.4 Use of the Hole Management Application ... 57
8.2 Penetration Holes – A Worked Example ... 58
8.2.1 Setting up the Worked Example ... 58
8.2.2 Creating a HVAC Penetration ... 59
8.2.3 Managing Holes ... 62
8.2.6 Approving a Hole ... 67
8.2.7 Rejecting a Hole ... 68
8.2.8 Making a Hole Redundant ... 70
8.2.9 Reposition the Fire Damper ... 70
Exercise 4 - Hole Management ... 71
9 Completing the Design ... 72
9.1 Filling ductwork gaps automatically ... 72
Exercise 5 – Filling Ductwork Gaps ... 74
9.2 Adding Stiffening Flanges ... 75
9.3 Automatic Item Numbering and Naming ... 76
Exercise 6 - Stiffening Flanges ... 76
9.4 Finishing Off Design Details ... 77
9.4.1 Modifying Joint Types ... 77
Exercise 7 – Modifying Joint Types ... 78
9.4.2 Inserting an Access Panel ... 79
9.5 Changing the View Representation ... 80
Exercise 8 – Added Access Panel ... 80
10 Checking and Outputting Design Data ... 82
10.1 Querying Data Settings ... 82
10.2 Checking for Design Data Inconsistencies ... 83
10.3 Data Check Functions ... 83
10.4 Data Checker Utility ... 84
10.4.1 Insulation Check ... 84
10.4.2 Length Check ... 85
Exercise 9 – HVAC Checker ... 87
10.5 Generating a Data Output Report ... 88
10.5.1 Generating a Tabulated Data Report ... 88
Exercise 10 - Reports ... 89
11 HVAC Items System Attribute ... 90
11.1 Creating / Modifying System Hierarchy ... 90
Exercise 11 – HVAC System ... 91
12 HVAC Spooling ... 92
12.1 Generating HVAC Spools using the HVAC Spool Manager ... 92
12.2 HVAC Spool Verification ... 93
12.3 Modifying an HVAC Spool ... 93
Exercise 12 – HVAC Spooling ... 94
13 HVAC Sketches ... 95
13.1 HVAC Sketch Production ... 95
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1 Introduction
1.1 Aim
During the course participants will learn the basic functions required to design, create and modify HVAC elements, and HVAC reporting.
1.2 Objectives
To have a clear understanding of the basic features of AVEVA Plant HVAC Design. To create and manipulate HVAC administrative elements.
To create a sequence of HVAC components. To modify existing HVAC components.
To understand how to use the Grid/Tiling Utility. To be able to make Data Consistency checks.
To discover how to Split HVAC elements and to generate HVAC spools. To be able create HVAC sketches.
1.3 Prerequisites
Trainees should have attended the AVEVA Plant PDMS Foundations course and be familiar with Microsoft Windows.
1.4 Course Structure
Training will consist of oral and visual presentations, demonstrations and set exercises. Each workstation will have a training project, populated with model objects. This will be used by the trainees to practice their methods and complete the set exercises.
1.5 Using this Guide
Certain text styles are used to indicate special situations throughout this document. Menu pull downs and button press actions are indicated by bold dark turquoise text. Information the user has to Key-in will be in bold red text.
Additional information notes and references to other documentation will be noted in the styles below.
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Additional informationRefer to other documentation
System prompts will be displayed in bold, italicised text in inverted commas i.e. 'Choose function'. Example files or inputs will be in the courier new font, colours and styles used as before.
Login to PDMS as an HVAC Designer using the details provided by the Trainer. For example: Project: Training (TRA)
Username: A.HVACMAN Password: A
MDB: A-HVAC Module: Design
Select Utilities>Training Setup… from the main menu to display the Training Setup form.
Click the HVAC tab and check the Add HVAC Training Site checkbox. Click the Apply button on the form.
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2 HVAC Design Features
AVEVA Plant HVAC has been designed by HVAC Engineers for HVAC Engineers. The HVAC application offers the following key benefits.
The HVAC Designer application lets the user build up and detail complex ducting networks by selecting components from standard catalogues. By using standard default settings, a
conceptual layout can be created and analysed rapidly, leaving the design details to a later post-approval stage.
The application provides a facility to create rectangular, circular and oval cross-sectional items. Individual design components can be selected from over 100 parametric catalogue items covering all likely requirements. A range of auxiliary items such as stiffening frames, access panels, splitter plates etc, have been included and are accurately detailed in the design model. The catalogue also includes a range of inline plant items such as centrifugal and axial fans, air handling units, silencers, dampers etc. These items can be inserted into the design model in a single operation.
User-definable detailing specifications, such as those for construction materials, ductwork gauge, flange dimensions etc, define precise manufacturing requirements. User-definable default settings ensure compliance with company standards and maintain a high level of design consistency throughout the project.
Accurate geometric representation of all design items ensure reliable clash checking during the design process, leading to good space management and the early elimination of positional errors.
Explicitly positioned design components are interconnected automatically with implied ductwork as the design of the ductwork sequence is built up. An auto filling facility is provided which can then calculate the optimum use of standard ducting straights to complete the material take-off for the entire network.
Several design aids are incorporated, including a facility for creating horizontal grids which can be used to position ceiling tiles. This can greatly aid the layout of building services in an architectural environment.
HVAC elements may be named in accordance with a predefined set of rules, so that their positions in the database hierarchy are always obvious without the user having to enter specific texts during the design process.
The applications user interface can be tailored readily to suit the level of experience of any individual user. In particular, graphical illustrations of all catalogue items can be displayed if required to simplify component selection and dimensioning.
The user can carry out multi-disciplinary clash checks at any stage of the design, thus avoiding spatial conflicts within the overall model which could be expensive to rectify at the construction stage. This is particularly important where different features of the design model are under the control of different designers.
At any stage of the design process, the user can create reports listing specified data from the current database. The user can specify a standard report template, so lists of commonly required information can be derived very quickly. Alternatively, one-off report formats can be designed to suit special needs. The resultant output, can include data from any design
discipline, sorted to suit project requirements, can be either displayed on the screen or sent to a file for storage and/or printing.
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3 Getting Started
3.1 Entering a Design Session
1. To start AVEVA Plant, Select AVEVA > PDMS 12.0 > Run PDMS.
2. Enter the name of the project: TRAINING
3. Enter the Username: A.HVACMAN
4. Enter the Password: A
5. Enter the MDB: A-HVAC
6. Select the module required: DESIGN
When all the necessary details have been entered the Login form appears as shown.
Click OK.
When PDMS has been loaded, a default screen layout will be displayed.
7. Check that the HVAC application is running. In the Title Bar of the main display, the application running will be shown. If the HVAC application is not running , then select Design > HVAC Designer.
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4 The PDMS Database Hierarchy
Although this guide is about the design of HVAC ducting networks, in practice ductwork will be routed with reference to predefined design items such as a frameworks, floors and ceilings. As such, it is important to understand how items are defined in PDMS as well as learning how to route sequences of HVAC
components and ducting within them.
4.1 How PDMS Stores Design Data
All PDMS data is stored in the form of a hierarchy. A PDMS design database has: A top level, World (usually represented by the symbol /*).
Two principle administrative sublevels, Site and Zone.
The names used to identify database levels below Zone depend on the specific engineering discipline for which the data is used. For HVAC design data, the lower administrative levels (and their PDMS
abbreviations) are:
HVAC (HVAC). Branch (BRAN).
Each HVAC element can represent any position of the overall ducting network.
Each branch within a HVAC element represents a single sequence of components running between two, and only two, points.
Branch Head. Branch Tail.
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5 Routing a Sequence of HVAC Components
This chapter considers:
More about how the design data is stored and accessed in PDMS. How to route a HVAC network.
How to position a selection of HVAC components within the ducting runs.
5.1 HVAC Components Representation in the Catalogue
Each HVAC component is represented in the PDMS catalogue by the following types of data: Physical shape.
Parameters.
5.1.1 HVAC Physical Shape
The physical shape of a component is defined by a set of geometric primitives, so that a component can be manipulated and linked to adjacent HVAC items. All principle points needed to define the component position orientation and connectivity are identified by uniquely numbered tags. These tags have both position and direction and are called P-points.
Each P-point is identified by a number of the format P0. P1, P2 etc. P0 always represents the components origin position.
The principle inlet and outlet points are also identified as P-Arrive (PA) and P-Leave (PL). P1 is the same as P-Arrive, and P2 is the same as P-Leave.
5.1.2 HVAC Variables
The setting of all variables needed to distinguish a component from others with the same geometry and P-point sets are defined by parameters. The values of these are defined to suit the specific design
requirements.
For example, a rectangular three way component (or branch connector) might be represented in the PDMS catalogue as follows:
The two curved duct sections form the component geometry set. The four P-points form its point set.
P-point, P3, enables you to control the direction of the branch connection arm when you incorporate the component into your design.
The dimensions of the component and other constructional details are represented in the catalogue by parameters whose values are set to suit the design requirements.
5.2 Setting HVAC Defaults
The following defaults will need to be set for the users to complete the training exercises. A default detailing specification.
The format of the HVAC form. Customised HVAC forms.
5.2.1 Setting a Default HVAC Specification
The constructional detail of components that the user selects from the HVAC catalogue is determined by the default specification, which is shown on the HVAC application menu bar. The default specification is
automatically set to TUTORIAL. The current HVAC specification is displayed in the HVAC Design toolbar.
The TUTORIAL specification gives access to a range of catalogue components that are suitable for use with this exercise. Although the user can select a different specification for each HVAC branch, the same
specification will be used throughout the training exercises.
Exercise continues
8. Select the specification Tutorial from the HVAC Designer toolbar.
5.2.2 Choosing the HVAC Form Format
All the principle functions for creating, positioning, orientating and connecting HVAC elements are available from within a single form, the Heating, Ventilation, Air Conditioning (HVAC) form.
The HVAC form has two display formats:
The brief form, the default, uses drop-down lists to show the elements available for selection by the user when a design is being created.
The full form, uses scrollable lists to show the elements available for selection and also offers more complex positioning options.
It is preferable to use the full form whilst learning about the HVAC Designer application. This guide uses examples of the full form.
Exercise continues
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The HVAC form is displayed in Brief format.To use the full form move the mouse over the form, now press the right mouse button and select Use Full Form.
The full form will be displayed as shown above. The style of form can also be set by selecting:
Settings>Ductwork defaults, the HVAC Defaults form is displayed as shown.
By selecting Style> Use Full Form, the HVAC form will be displayed as shown above.
5.2.3 Customising HVAC Forms
The appearance and behaviour of the forms for creating and modifying HVAC components can be
customised. This enables the user to modify forms to suit their preferences, or the type of design work being carried out.
Exercise continues
10. Select Style>Style Options from the HVAC Defaults form to display the HVAC Form Style window. Alternatively, use the right mouse button whilst hovering over the HVAC creation form. For the training toggle the options as shown:
Show Local Views This displays a small 3D graphical view showing the current component in its design context.
Local Views Shade This shows local views in colour shaded as opposed to wire line representation. OK / Cancel Forms This gives component create and modify forms Apply and Dismiss buttons instead
of OK and Cancel buttons, so that they remain available for repeated use until dismissed explicitly.
Show Pixmaps This automatically displays diagrams showing components geometries to help the user select items from the catalogue.
Show Forms This displays the Create / Modify form automatically when the user adds a new component to the design so that default dimensions and/or orientation can be adjusted as required.
Exercise continues
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5.3 Creating HVAC Administrative Elements
You are now ready to create administrative elements which govern the position of individual HVAC components within the database hierarchy. The first elements are:
An HVAC system element.
An HVAC Branch Element (the branch head).
5.3.1 Creating a HVAC System Element Exercise continues
12. Make sure that the current element is SITE /HVAC-TRAINING.
13. Create a new zone called /HVACZONE and set the purpose to HVAC.
14. From the categories section of the HVAC form select HVAC / Branches. From the available types, select HVAC System Element.
15. In the displayed Create HVAC form, enter
‘HTESTHVAC’ in the HVAC Name text box. Leave the Primary System setting as No System.
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If Systems have been created the HVAC element can be assigned to it on creation. The Systems displayed have the Purpose of there System Group Area set to HVAC. The Description field of the System Group is displayed in the option list of the Create HVAC form.16. Click OK to create the element.
5.3.2 Creating an HVAC Branch Element
There are two types of HVAC branch element. Main branch.
Side branch.
These differ only in the way they are added to the design:
A main branch requires the user to position and orientate the branch head explicitly.
A side branch takes its head position and orientation from a branch connection point P3 on an existing three way component.
The first HVAC branch element will be a main branch element, the branch head.
Exercise continues
17. From the HVAC form, with categories still set to HVAC Branches, select Main Branch Element from the Available Types section.
18. In the displayed HVAC Main Branch form: Enter Branch Name: /HTESTB1.
Set Branch Head Shape to RECT (rectangular). Set the Head Direction to N (this is the direction
looking along the ductwork run from the head position towards the first component).
Set the Duct width AA to 1000. Set the Duct Depth AB to 500.
Set the insulation thickness to 50mm (this adds 50mm of insulation automatically to each surface of all components and ducting owned by the branch). Select ID Design PPoint from the Head Start drop
down list.
The selection made for the Head Start position, ID Design PPoint, enables the user to specify the position of the Branch Head by picking a p-point.
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21. Select Settings>Graphics from the Main Tool bar and the Graphics settings form will be displayed. Select the Plines & PPoints Tab. Toggle the Display and Numbers for
PPoints to be displayed. Click Apply.
The ppoints of all the elements will be displayed.
Select the Representation Tab. Toggle the Holes Drawn.
Click OK.
The holes (negative volumes) of all the elements will be displayed.
22. Return to the HVAC Main Branch Element form, and click OK. A prompt is displayed ‘Identify Design Ppoint’
23. Hold down the left mouse button and move the cursor of the ppoint at the centre of the hole then release the mouse button.
The Branch head is now defined.
24. On the Graphics settings form toggle PPoints display and numbers to remove the ppoints from the display and click OK.
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5.4 Creating HVAC Components
Starting at the branch head, you will now build up you HVAC design. You will add individual components sequentially, position and orientate each of these as you proceed.
You will be creating the following HVAC configuration
Exercise continues
25. The first component required is a rectangular straight, to be aligned with the hole in the southernmost wall:
26. In the HVAC form, Select Rectangular from the categories list.
27. Select Options
All the available Rectangular Ductwork will be displayed.
Alternatively In the displayed HVAC Rectangular Ductwork form, click on the Straight.
This displays the Rectangular Straight form, with data fields for all the parameters to define the component. The initial data settings on the component definition forms are determined by a set of default values.
28. To see what the parameters mean in terms of the component geometry, click the Picture button on the form. This displays the HVAC Component form containing a dimensioned and annotated diagram showing how the component is defined in the catalogue.
Compare the data categories on the Rectangular Straight form with the diagram, to see how these are related.
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There is a full set of component geometry diagrams in the appendices of the HVAC User Guide.29. Close the HVAC Component form by selecting Control>Close.
30. Click OK on the Rectangular Straight form to accept the default parameters.
The rectangular straight is created and positioned with its p-arrive at the branch head, so that it is inside the building (as shown in the next diagram).
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31. Go to the POSITION: - area on the HVAC form. In the text box next to themove button, enter the displacement; S5000D96.
32. The straight is moved as soon as the Return button is pressed.
33. The position of the straight can be checked by selecting Query>Position>Origin from the main bar menu. The position displayed in the HVAC Command Output window, is:
34. To reposition the branch head so that it coincides with the PA of the straight, go to the drop down lists in the bottom row of the CONNECT:- area on the HVAC form:
Set HVAC Branch to Head Set to First Member
This connects and therefore repositions the head of the current branch to PA of the first component.
The branch head could have been positioned here when it was first created, but this would have required the explicit coordinates to be calculated. It is usually easier, to position a new item relative to an existing design point and then move it later.
5.4.1 Creating a Fire Damper
The next step in the construction of you HVAC design is to create a fire damper at the position where the ducting will pass through the hole in the wall.
Exercise continues
35. The last operation made the branch head the current element. Each new component is created immediately after the current component in the branch list order. So to create a component after the straight, you must navigate back to the straight. To do this, select the straight component in the 3D graphical view.
36. In the HVAC form,
from categories, select Inline Plant Equipment from the available types from the displayed HVAC Inline Plant
Equipment form, select Rectangular Fire Damper.
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37. On the Rectangular Fire Damper form, enterthe name FD1 and leave all the other parameters the same, then click OK.
5.4.2 Moving the Fire Damper
The fire damper is automatically positioned so that its PA is coincident with the PL of the preceding straight. It will now be moved so that it fits within the wall.
Exercise continues
38. In the POSITION: - area of the HVAC form, set Through to ID Element.
39. A prompt is displayed to Identify element, pick any part of the southernmost wall. The fire damper is moved northward along its axis until it lies in the plane of the wall.
The gap between the straight and the fire damper is filled automatically by a length of implied ducting in the 3D graphical view.
40. Change the 3D graphical view direction to Plan>North, so that the view appears similar to the diagrams shown here.
5.4.3 Creating a Composite Component
The HVAC components that have been created so far have each been represented by a single PDMS element. Some HVAC components, (composite components) are represented by more than one PDMS element.
Care must be taken to ensure the correct position is selected in the Design Explorer when refer is made to such a component. The next part of the exercise shows how the composite components are represented in the PDMS hierarchy.
Exercise continues
41. Use the HVAC form to create a Rectangular Square Bend.
Select Rectangular from the categories on the HVAC.
Select Square Bend form the displayed HVAC Rectangular Ductwork form.
On the displayed Rectangular Square Bend form Set leave direction to W.
Leave all other settings at their default.
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43. A warning message is displayed stating the hierarchyhas been affected by the creation of this component. Click OK on the warning message.
44. The bend is created as shown:
The Design Explorer shows two new elements. BEND 1 represents the bend ducting.
SPLR 1 represents the set of air deflectors within the bend (created because a square bend requires turning vanes).
The message displayed when creating this component was a warning that this component comprises more than one PDMS element.
Navigating to the square bend, simply by picking it with the cursor, will almost certainly select the element representing the outer ducting. The deflector set (air turns) that also form part of the component, follow the bend in branch order (as viewed in the Design Explorer). When creating an element after the bend, you must ensure that the deflectors are the current element.
To view the deflectors inside the bend, switch the 3D graphical view temporarily to wireline mode. (Press F8 on the keyboard to toggle between colour shaded and wireline views)
5.5 Adding More HVAC Components to the Ductwork 5.5.1 Creating a Rectangular Radiused Bend
Exercise continues
45. Using the design explorer, make sure that the deflector set of the rectangular square bend (SPLR 1) is the current element.
46. Use the HVAC form to create a rectangular radiused bend; Select Rectangular from the categories on the HVAC.
Select Radius Bend form the displayed HVAC Rectangular Ductwork form. On the displayed Rectangular Radiused Bend form
Set the inside radius to 100. Set leave direction to N.
All the other defaults remain the same. 47. Click OK.
5.5.2 Repositioning the Rectangular Radiused Bend
The new bend needs to be positioned in the plane of the westernmost wall.
Exercise continues
48. Position the new bend in the plane of the westernmost wall by using POSITION: - Through ID Element on the HVAC form. A prompt will be displayed Identify element. Pick the beam above the westernmost wall. 49. Now move the bend to fit just inside the wall, and downwards so that the
ducting leaving it passes under the beam across the building roof. Go to the POSITION: - area on the HVAC form. In the text box next to the move button, enter the displacement E800D150.
5.5.3 Creating a Rectangular Mitred Offset
Because the radiused bend has been moved downwards, its inlet (PA) is not vertically aligned with the outlet (PL) of the preceding component. This is indicated in the 3D graphical view by a broken line between the components, rather than implied ducting. To correct this problem, a mitred offset section will be inserted between the two components.
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Exercise continues
50. Remember that a new component is always added immediately after the current element, so navigate back to the deflector set (SPLR1) of the square bend.
51. Create a Rectangular mitred offset.
Select Rectangular from the categories on the HVAC. Select Mitred Offset form the displayed HVAC Rectangular
Ductwork form.
52. PDMS has a facility that can calculate the length and the amount of offset needed to fit the new component automatically into the available space. Click the Fit button on the Rectangular Mitred Offset form. The calculated data is entered into the parameter data fields, then click OK.
5.5.4 Creating a Second Rectangular Radiused Bend Exercise continues
53. Navigate back to the last component in the branch, the rectangular radiused bend. Select Rectangular from the categories on the HVAC.
Select Radius Bend form the displayed HVAC Rectangular Ductwork form. On the displayed Rectangular Radiused Bend form.
Leave the inside radius as the default value (0.5 means 0.5 x duct width). Set leave direction to E.
Click OK.
54. Position the bend in the plane of the northernmost wall by using POSITION: - Through ID Element on the HVAC form. A prompt will be displayed Identify
element. Pick the beam above the northernmost wall.
5.5.5 Adding a Circular Section Silencer
To include a circular section silencer in the rectangular ductwork, a transformation piece either side of the silencer is required.
Exercise continues
56. In the HVAC form:
From categories select Transformations.
From the displayed HVAC Shape Transformation Items form, select Square to Round.
In the displayed Square to Round Transformation form set the duct diameter to 750.
Click OK.
57. Position the transformation piece 300mm after the first beam reached in the branch creation direction. Select Position>Move>clearance, the following form will be
displayed.
Set P1 as the reference point in the element. Set the direction as E.
Set the clearance to 300. Select Behind.
Select ID Cursor. Click Apply.
A prompt will be displayed Identify element. Pick the SCTN element as shown below.
58. In the HVAC form:
From Categories, select Inline Plant Equipment.
From the displayed HVAC Inline Plant Equipment form select Circular Silencer.
In the displayed Circular f.orm name the component SILE1. Set the Outer Diameter to 950.
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Another transformation piece will be added to revert back to the rectangular ducting. However,instead of specifying this from first principles a copy will be created of the first transformation piece and reversed to achieve the desired round to square result.
59. On the HVAC form, select the Create Copy ID button.
A prompt will be displayed Identify element.
Pick the square to round transformation that you want to copy.
On the displayed Square to Round Transformation form:
Set the Flip Circ / Rect option to Yes. Click Apply.
Click Dismiss.
5.5.6 Adding a Three-way Component and Terminating the Branch
A three-way component enables users to connect one branch to another. A three-way component is required so that a side branch can be connected to the existing main branch later in the exercise.
Exercise continues
To create a three-way component: 60. In the HVAC form:
From Categories, select Rectangular.
From the HVAC Rectangular ductwork form select Square Threeway.
Set Duct Width LA to 800. Set Second Width to 800. Set Leave Direction to S. ClickOK.
Flow direction through the three-way component is controlled using the Arrive, Leave, 3 option list. Three options are provided; Standard Configuration, Flip Arrive/Leave, and Flip Arrive/P3. The flow directions produced by each option are demonstrated below.
Standard Configuration Flip Arrive/Leave Flip Arrive/P3 The Orientation of the three-way component is determined by the configuration selected and the Change
Direction entered.
Set the Arrive, Leave, 3rd option list to Standard Configuration
Set Change Direction to S
ClickOK
A gap of 1500mm is required between the three-way component and the preceding component. The Distance operation on the HVAC form enables the user to specify the gap between the PL of one component and the PA of the next, thereby avoiding the need to calculate the movement required to reposition it.
61. Move the threeway a distance of 1500.
62. To check that the gap is correct, navigate back to the round to square transformation and select Query > Gap to next from the main menu bar.
The value of the gap is displayed in the HVAC Command Output window. 63. Navigate back to the square threeway component.
64. Use the HVAC form to create a rectangular radiused bend; Select Rectangular from the categories on the HVAC.
Select Radius Bend form the displayed HVAC Rectangular Ductwork form. On the displayed Rectangular Radiused Bend form:
Set leave direction to E.
All the other defaults remain the same. 65. Click OK.
66. In the 3D graphical view tool bar, click , and zoom in on the hole in the easternmost wall of the building.
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Select the Plines & PPoints Tab. Toggle the Display and Numbers for PPoints to be displayed.
Click Apply.
The ppoints of all the components will be displayed.
68. Align the bend with the hole in the easternmost wall using the Through ID P-Point option from the HVAC form. A prompt will be displayed Identify Design ppoint.
69. Hold down the left mouse button and move the cursor over the ppoint at the centre of the hole, and release the mouse button.
70. On the Settings > Graphics form toggle PPoints display and numbers to remove the ppoints from the display.
71. Click OK.
72. In the HVAC form:
From categories, select Inline Plant Equipment from the available types.
From the displayed HVAC Inline Plant Equipment form, select Rectangular Fire Damper. 73. On the displayed Rectangular Fire Damper form:
Enter the name FD2.
Leave all the other parameters as the default values. Click OK.
74. Select Position>Move>Clearance the Move form will be displayed. 75. Position the fire damper through the hole in the easternmost wall.
Set P1 as the reference point in the element. Set the direction as E.
Set the clearance to 0. Select Behind. Select ID Cursor. Click Apply.
A prompt will be displayed Identify element. Pick the easternmost wall.
5.5.7 Defining the Branch Tail
The definition of the main branch can be completed by defining the branch tail.
Exercise continues
76. Connect the Branch tail to the fire damper (the last member of the branch). Select Tail from the HVAC Connect menu at the foot of the HVAC form
then select Last member
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Savework should be done regularly through these exercises. Design > Savework.
Exercise 1 - Creating the HVAC Main Branch
6 Adding to the HVAC Model
In the last chapter a sequence of components was created to form the main branch of the HVAC ductwork. This chapter will demonstrate how to extend the model, by adding side branches, and show users how to position components using a working grid.
6.1 The Grid/Tiling Utility
The grid/tiling utility allows users to set out a working grid and position ceiling tiles within it. The tiles are then used as reference points for the positioning of HVAC grilles.
With reference to the existing design model, the next part of the HVAC ducting network will feed two ceiling grilles above the small room in the northeast corner of the building. In order to position these grilles a horizontal grid and ceiling tile layout will be constructed, based on a specified datum point.
There are three stages to tiling:
Specify a setting out point (SOP) to represent the datum from which grid line positions are to be calculated.
Create grid lines at specified intervals, referenced from the SOP in a horizontal plane. Add tiles at specified positions in the plane of the grid.
Exercise continues
78. Navigate to the zone /HVAC-BUILDING. The grid / tiles are created below this hierarchic level.
79. From the main menu bar, select Utilities>HVAC Tiles/Grid Layout>Setting Out Points. This displays the HVAC Grid Setting Out Point form.
Enter the S.O.P. Name: HTESTSOP1.
Enter the Setting Out Point Height: 2700 (the elevation of the ceiling in which you will eventually position the grilles). The view direction of the displayed elements must be in a
plan view! Click OK.
A prompt is displayed Use the 2D cursor to Position a Datum. The SOP will be positioned at the exact centre of the room’s ceiling. Rather than trying to pick this point precisely, a random point in the ceiling plane will initially be selected. This point will then be moved to the exact position required for the SOP.
80. Pick a point.
81. To move this point to the centre of the room, select Position>Explicitly (AT)
from the main menu. Enter the coordinates E15000 N9000 U2700 on the Explicit position form (ignore the positioning control form).
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82. Next define a grid in the plane of the ceiling (a horizontal reference grid) through the SOP datum, withthe grid lines spaced out from the SOP in both directions. 83. Select Utilities>HVAC Tiles/Grid Layout>Grid from SOP.
This displays the HVAC Layout Grid from SOP form. Leave the settings as the default values of 600. 84. Click OK.
If the SOP is not the current element a prompt will be displayed Identify the Grid S.O.P. Identify the SOP in the graphical view. If the SOP is the current element this prompt will not be displayed
Now define the horizontal rectangular area which represents the grid boundaries.
85. A prompt will be displayed Position the Lower Left Grid Extent. Pick the intersection of the beams at the southwest corner of the room.
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The positioning control toolbar is not active during the Grid Extent selection process. As such the usermust make a visual approximation of the intersection point. As the tile grid is set out from the centre of the room the accuracy of the grid is maintained.
86. Another prompt will be displayed Position the Upper Right Grid Extent. Pick the intersection of the beams at the northeast corner of the room.
Since the room size is 6000mm x 6000mm, the 600 mm grid spacing will give 10 grid squares in each direction within the ceiling area.
To complete this part of the exercise two grid tiles will be created in the ceiling grid where the HVAC grilles are to be installed.
87. Select Utilities>HVAC Tiles/Grid Layout>Apply Tiles in Grid.
This displays the HVAC Apply Tiles and Grid Form. Leave the default settings as they are displayed.
88. Click OK.
89. A prompt is displayed Identify the Grid S.O.P. Pick the SOP.
91. Pick the grid squares shown in the diagram below (the picked points snap to the nearest half tile) then press the Esc key on the key board to indicate that the process of adding tiles is complete.
6.2 Creating Side Branches
A side branch which runs from a start point on the main branch and which passes through the tile positions will be created. Two further side branches will be added, each running from a point on the first side branch to the tile positions. First a suitable connector must be inserted into the main branch so there is a point to which the side branch can be connected.
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A separate branch is required for each length of ducting between two points.Exercise continues
92. Navigate to the existing three way item. Another branch connector will be inserted immediately after it in branch sequence.
93. Use the HVAC form to create the next component. From Categories, select Branch Connectors. From the displayed HVAC Branch Connectors form select Flat Oval ‘A’ Boot.
In the displayed Oval ‘A’ Boot Brco form: Set Boot Width to 610. Set Boot Depth to 152. Set B Offset to 100. Set Boot Direction to E. 94. Click OK.
The oval ducting is to pass along the centreline of the ceiling. As such, the boot must be positioned so that the outlet is aligned with the SOP datum at the ceiling centre.
Using Through ID Element on the HVAC form: 95. In the HVAC form:
From Categories, select HVAC / Branches.
From Available Types. Select Side Branch (off main). 96. From the HVAC Side Branch form:
Set Branch Name to HTESTB1.1. Set Insulation Thickness to 50mm.
Leave specification set to the current default. Set Connect Head to Branch Connector.
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97. A prompt will be displayed Identify Branch Connector. Pick the branch connector.L
Any part of the component can be picked, the new branch head will always be connected to the P3point.
98. In the HVAC form:
From categories, select Flat Oval.
From the displayed HVAC Flat Oval Ductwork form select Straight. 99. From the displayed Oval Straight form.
Set the Width Direction to N. 100. Click OK.
Two circular boot connectors are now going to be created, from which to route outlets to the two tile positions. These will be created and positioned before the straight is created to which they connect, so that the boots can be positioned relative to the tiles and the length of straight can be adjusted to suit the boot positions.
101. Make the oval straight the current element. 102. In the HVAC form:
From Categories, select Branch Connectors.
From the displayed HVAC Branch Connectors form select Circular Boot Branch. In the displayed Boot Brconnector form:
Set Boot Diameter to 150. Set Inner Extension to 76. Set Dist from Leave to 100. Leave Boot Direction set to N.
The boot is positioned 100mm back from the PL of the straight on which it is mounted (which is only implied at this stage).
103. Move the boot so that it is aligned through the northernmost tile shown in the diagram above using Position Through ID Element from the HVAC form.
104. Create a second circular boot.
From Categories, select Branch Connectors.
From the displayed HVAC Branch Connectors form select Circular Boot Branch. In the displayed Boot Brconnector form:
Set Boot Diameter to 150. Set Inner Extension to 76. Set Dist from Leave to 700. Set Boot Direction to S.
The Dist from Leave dimension positions the boot 700mm back from the PL of the previous boot. Since the previous boot was set back 100mm from the PL, the difference between the boot positions corresponds to the 600mm offset between the tile positions. The result is as shown.
The implied ducting between the circular boots can now be replaced with a straight component. Because the boots are sub components, navigate back to the existing straight in this side branch. 105. Navigate back two positions (to STRT1 in HTESTB1.1) in the Design Explorer.
106. In the HVAC form:
From categories, select Flat Oval.
From the displayed HVAC Flat Oval Ductwork form select Straight.
Click the FIT button to achieve the required length between the PL of the first straight and the PL of the circular boot.
Click OK.
The calculated length is 2375mm.
107. To complete this first side branch, add a cap to the closed end of the last straight; navigate to the last component of HTESTB1.1 in the Design Explorer (the southernmost circular boot) and create a Flat Oval Cap End.
108. In the HVAC form:
From categories, select Flat Oval.
From the displayed HVAC Flat Oval Ductwork form select Cap End. Click OK on the displayed Flat Oval Cap End form.
109. Connect the HVAC branch Tail to the Last Member of the branch (the cap). Select Tail from the HVAC Connect menu at the foot of the HVAC form. Select Last member.
The second side branch will run from the northernmost circular boot to a grille in the adjacent tile. 110. In the HVAC form:
From Categories, select PDMS Branches.
From Available Types. Select Side Branch (off main). 111. From the HVAC Side Branch form:
Set Branch Name to HTESTB1.1.1. Set Insulation Thickness to 50mm.
Leave specification set to the current default. Set Connect Head to Branch Connector. Click OK.
112. A prompt will be displayed Identify Branch Connector. Pick the branch connector.
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Any part of the component can be picked, the new branch head will always be connected to the P3point.
113. Create a Circular Straight with Length set to 750. 114. In the HVAC form:
From categories, select Circular.
From the displayed HVAC Circular Ductwork form select Straight. 115. From the displayed Circular Straight form.
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To see what types of leave joint are available, click the Choose button next to the Leajoint field.From the resulting Choose Joint form, select Male Socket & Spigot Joint. Click OK on the Choose Joint form.
The Leajoint field is updated to show MALE. Click OK on the Circular Straight form.
116. Create a Circular Internal Damper with default settings. The Circular Internal Damper is created 150mm from the leave end of the straight.
117. In the HVAC form:
From categories, select Circular.
From the displayed HVAC Circular Ductwork form. select Internal Damper.
Leave the default values. Click OK.
118. Create a Circular Flexible Bend. 119. In the HVAC form:
From categories, select Circular.
From the displayed HVAC Circular Ductwork form, select Flexible Bend. Set the Leave Direction to D.
Click OK.
Position the bend so that it is aligned through the appropriate tile. (the bend dimensions will be adjusted later).
120. Move the flexible bend so that it is aligned through the northernmost tile using Position Through ID Element from the HVAC form.
121. Use the HVAC form to create a circular to rectangular spigot box. From Categories, select Transformations.
From the displayed HVAC shape transformation items, select Spigot box. In the displayed Spigot Box form.
Set Duct width LA = 300. Set Duct Depth LB = 300.
Set Rectangular Box Height = 75. Set Circ Extension = 50.
Set Circ Jnt = MALE. Click OK.
122. Use the HVAC form to create a Rectangular Grille in line.
From Categories, select Inline Plant Equipment.
From the displayed HVAC Inline Plant Equipment form, select Rectangular grille in Line. In the displayed In line grille form.
Set Name = GRIL1. Set End width = 400. Set End depth = 400. Set Grille Length = 50. Set ‘A’ Extension = 0. ClickOK.
The grille is to fit within the tile volume. 123. In the HVAC form:
Set the Position At option to ID Element. A prompt will be displayed Identify Element.
Pick the tile, the origin of the grille will be positioned at the origin of the tile.
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At this stage the PL of the spigot box and the PA of the grille have become misaligned, as such abroken line is displayed between them rather than a length of implied ducting.
Having positioned the grille correctly, go back along the current side branch and adjust the other components to fit, starting with the spigot box, which will be positioned directly on top of the grille. 124. Navigate to the spigot box (PLEN 1 in the Design Explorer).
125. Select Position At Next from the HVAC form positioning options.
126. Navigate to the flexible bend and from the HVAC form Select Modify CE so that you can adjust the dimensions of the flexible bend so that it fits correctly between the internal damper (at its PA) and the spigot box (at its PL).
127. Click the Fit button on the displayed circular Flexible Bend form to recalculate the dimensions necessary for a correct fit.
128. Click Apply and then Click Dismiss.
129. Complete the definition of the side branch by connecting the tail to the grille. The side branch HTESTB1.1.1 is now as shown in the diagram below.
Use the method given above to create a similar side branch, named HTESTB1.1.2 from the second circular boot to a grille (GRIL2) positioned in the other tile. Remember to navigate up to the level of the branch HTESTB1.1 first.
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The overall layout of the HVAC ducting in the vicinity of the room will be as shown in the diagram below.130. The network will now be completed by connecting an angled outlet grille to the side arm of the square three way component (bottom left in the preceding view). A fourth side branch must be created. 131. Navigate to the three way component.
132. In the HVAC form:
From Categories, select HVAC / Branches.
From Available Types. Select Side Branch (off main). 133. From the HVAC Side Branch form:
Set Branch Name to HTESTB1.2. Set Insulation Thickness to 50mm.
Leave specification set to the current default. Set Connect Head to Threeway Item. Click OK.
134. Create a Rectangular Radiused Bend. 135. In the HVAC form:
From categories select Rectangular.
From the displayed HVAC rectangular ductwork form select Radiused Bend.
The bend is to turn in the B direction (click the Picture button for clarification). In the displayed radius bend form:
Click the transpose width/depth button. Set the Angle to 135.
Set the Inside Radius to 100. Set the Leave Direction to D. Click OK.
136. Create a Rectangular Radiused Splitter which fits inside the bend (it is a sub component of the bend).
137. In the HVAC form:
From categories, select Rectangular.
From the displayed HVAC rectangular ductwork form select Radius Splitter. In the displayed radius splitter form:
Set Splitter Radius to 200. Click OK.
Switch to wireline mode (Graphics>shaded or the F8 key) to view the splitter.
138. Create a Rectangular Mesh End using default settings, to complete the branch. 139. In the HVAC form:
From categories, select Rectangular.
From the displayed HVAC rectangular ductwork form select Mesh End. Click OK.
140. Connect the branch tail to the last member in the usual way. This side branch is now as shown in the diagram below.
This completes the conceptual design of the basic HVAC network.
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Exercise 2 – Creating HVAC Components using a Grid.
7 HVAC Splitting
7.1 Overview
HVAC systems are created as a series of branches and components along the full length of the structure. When the HVAC route is well defined and stable, the HVAC Splitting utility allows the user to split the HVAC system at either logical breaks based on topographical features or at specific points along the HVAC route. The relevant workflow for HVAC is to define the whole route of the HVAC using key elements only i.e. bends, dampers, reducers, etc. Splitting can then be done while the implied duct is still present.
Auto-filling gaps can be done after splitting. Split line
Split line
Original Split line
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7.2 The Split HVAC Form
To display the Split HVAC form, in Design - HVAC Designer Application select Modify > Split HVAC… The Split HVAC form consists of three sections:
Branches to Split Split Markers
Split Branches and Move elements into
7.2.1 Branches to Split
This section allows the user to define a list of HVAC branches to be split. It consists of a list pane with a pop-up menu of options, an options list, and an Add button. The options list has the following options that can be selected in conjunction with the Add button:
1. CE – Adds to the list the HVAC branch element if the CE (Current Element) is an HVAC branch, or adds the owning branch if the CE is an HVAC branch member, or adds all the HVAC branches if the CE is an HVAC main element.
2. List – Adds all the HVAC branches from the active list. 3. Graphical Pick – Prompts the user to pick an HVAC element using graphical pick and adds the owner branch to the list.
4. Window Selection – Allows the user to add HVAC branches from the elements selected using Window selection in graphical window. Only HVAC branches in the selection are added to the list. The user will have to first do the window selection and then select this menu.
The list pane, as well as having similar options as the four above, has the following additional options all available from a right click pop-up menu:
Remove Selected – Removes selected elements from the list. Single or Multiple selection is possible.
Remove All – Removes all the elements from the list. Highlight Selection – Toggle menu used to specify whether
the selected branch in the list needs to be highlighted or not. Default option is toggle ON. Highlight colour is WHITE.
7.2.2 Split Markers
This section allows the user to define and modify a plane at which to split the branches, and create and position split markers.
Plane definition
The Plane Size text box is used to set/modify the size of the plane.
The Fill toggle is used to set/modify the plane filling.
Define Plane using
The drop-down list has the following options in which a plane can be created:
DB Planar Element – PDMS Database element which can be translated into a plane, e.g., panel.
Ppoints – Standard ppoint. Pline – Standard pline.
Reference Grid – Grid Section.
Explicitly… - Allows the user to create a plane explicitly using graphical plane edit form.
Modify Plane
The drop-down list has the following two options to modify a defined plane:
Definition… – The system prompts the user to pick the plane to be modified. When a plane is picked the system displays the Modify Plane form for the user to the plane definition.
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Create MarkerThis link creates the split markers at the intersection points between the defined plane and the implied tubes of the HVAC branch elements that are added in the Branches to Split list.
Reposition Marker
The option list has the following two options: Explicitly At...
Relatively By... each displaying a standard Position form to reposition the created split markers.
7.2.3 Split
This section allows the user to specify the hierarchy into which the split elements will be placed. It consists of the following options:
Current HVAC – Creates new branch for each split marker under the HVAC system where the branch to be split is located.
New HVAC – Creates a new HVAC system and a branch under it for each split marker.
Existing HVAC – Creates new branch under the HVAC system specified in the adjacent text. The existing HVAC system can be specified by typing the name in the text box, or by navigating to the HVAC system and typing ce (case insensitive) in the text box, or by copying and pasting the name of the HVAC system into the text box.
Exercise continues
141. Split the HVAC element below as shown at the intersection of the roof beams and centreline of ductwork.
142. Select Modify>Split HVAC from the main bar menu, the Split HVAC form will be displayed. 143. Click on any element in the main branch and click the ADD
button on the Split HVAC form. The branch will be added to the Branches to Split.
144. Set the Plane Size to 2000.
145. Set the Define Plane using Ppoints.
A prompt is displayed Pick a P-point that can be
translated into a plane.
Identify the ppoint on the PL of the first radiused bend, and a plane is displayed at the PL point.
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146. Set the Modify Plane to Definition. The position control form is displayed.
Select Element and Intersect.
A prompt is displayed Modify Plane (Intersection[1]) Snap
Identify the centre of the duct.
A prompt is displayed Modify Plane (Intersection[2]) Snap
Identify the steel beam over the duct.
Click OK on the Modify Plane form.
The Plane has now been positioned at the intersection of the duct and the beam.
147. click on the Create Marker link.
An attachment is created in the HVAC branch at this point. Because the Current HVAC option is selected, the split will create a new branch in the current HVAC element.
148. Click Apply and the split function is now complete.
A new branch has been created, and the components have been included into this branch as required by the system. The branch can be renamed if required.
Exercise 3 – HVAC Splitting
8 Hole Management
On a typical AVEVA Plant project it is necessary for designers to create holes in panel elements, i.e. deck plates, grating, walls, floors, etc. Due to the implications on design integrity and cost, the hole creation process needs to be controlled and managed.
8.1 Introduction to Hole Management
PDMS controls and manages holes using the Hole Management application which facilitates:
• Communication of hole data between disciplines including Request and Approval processes. • Ensuring holes are only created by users with appropriate write access permissions.
• Performing validation checks on managed holes and providing feedback to users on the hole status. • Generation of reports for managed holes.
Generally in AVEVA Plant projects discipline Designers do not have write access to items created by other disciplines, i.e. a Piping Designer does not have write access to Structural elements and Structural
Designers do not have write access to Piping elements, etc.
With Hole Management penetration holes are specified and requested by the penetrating discipline, normally piping, HVAC or equipment designers and approved by the penetrated discipline, normally
structural Designers. For cases where a penetration is required, say, for a steel section through a deck/floor plate, the hole would be specified, requested and approved by the structural discipline.
The specification of a penetration hole by the relevant discipline in the appropriate Design application creates a ‘virtual hole’ in the panel element, consisting of a FRMW and two FIXING elements. Each fixing element has a Specification Reference (Spref) attribute that points to the hole definition in the catalogue. An Association (ASSOC) element that references all of the hole elements is also created.
Once the ‘virtual hole’ has been created the penetrating discipline enters the Hole Management application and requests the hole. The owner of the panel, normally the Structural discipline, then reviews and approves (or rejects) the hole request using the mechanism provided by the Hole Management application.
The act of approving the request creates the ‘actual’ hole as a PFIT owned by the PANE element. The Hole Management application checks and validates the hole using the association restrictions and stores data on the hole history and status. Only valid holes may be approved. For a structural penetration the Structural Designer may be both the requester and approver, although specific company procedures, controlled by DAC, may be required if the Originator and Reviewer need to be different.
8.1.1 Hole Element Storage
The ‘virtual hole’ FIXING elements are stored in a FRMW owned by a STRU whose Purpose attribute is set to HOLE, for
example:
The STRU element is normally pre-defined by the System Administrator in specific Design database.
If a suitable STRU does not exist, the following error message is displayed:
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The Hole Management associations are stored in an AssociationGroup (ASSOGP) element owned by an Association World (ASSOWL) element. The ASSOGP must also have its Purpose attribute set to HOLE.
The ASSOWL and ASSOGP elements are normally pre-defined by the System Administrator. An association is created for each hole and named on a simple sequential numbering system.
Each association has several members of different element types that not within the scope of this training guide. The Design Explorer may look like this:
If no ASSOGP element with the Purpose set to HOLE can be found, the Hole Management application will create an ASSOGP in the first writeable ASSOWL element and set the Purpose attribute.
If no writeable ASSOWL element can be found the following error message is displayed.
8.1.2 Request and Approval Workflow
Once the penetration hole has been specified and the ‘virtual’ hole created, the Hole Management application provides a series of tasks for the Originator (Penetrating discipline) and Reviewer (Structural discipline). These tasks are:
Originator Tasks Reviewer Tasks Request Approve Redundant Reject Cancel Request Agree Redundant Delete Entry
There are three main workflow scenarios for the request/approval cycle that are detailed in the following sections.
