Exercise 3 – Modifying a Support
7.3 Error trying to delete Supports using normal delete method
If the support designer tries to use the standard delete menu an error message will be issued if a support is found.
If a support has an associated support for example if you delete a shoe that has an associated guide, the application will prompt the user to inform that the guide will be deleted as well. The user is given the option to cancel the operation.
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Note! It is vital that a user does not delete a component of a support from the command line, this will cause the corruption of the support and MDS may not be able to recognise the support.www.aveva.com
CHAPTER 8
8 Locking a Support
This chapter explains how to lock a support 8.1 Locking and Unlocking a Support
To lock a support either select the icon from the toolbar or select the option Modify>Lock/Unlock Support... from the MDS Application main menu.
The Lock/Unlock Support form will be displayed as shown below.
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There are three methods of selecting the support to be locked/unlocked.
1. Typing the Support Name directly into the name text gadget
2. Clicking on the ‘Identify By Cursor’ button will request the support designer to ‘Identify the support to modify’ from the graphical display, and automatically add the Support Name to the text gadget.
3. Clicking on the ‘CE’ button will automatically add the Support Name to the text gadget, as long as the current element is a support.
When a valid support name has been entered into the Lock/Unlock Support form, click on the ‘Apply’ button.
8.2 Locking a support
If the support is currently unlocked the application will display the ‘Confirm’ Warning Message shown below.
Either click the ‘YES’ button to lock the support or the ‘NO’ button to cancel the request.
8.3 Unlocking a support
If the support is currently locked the application will display the ‘Confirm’ Warning Message shown below.
Either click the ‘YES’ button to unlock the support or the ‘NO’ button to cancel the request.
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CHAPTER 9
9 Cable Rack Support
This chapter explains how to create a Cable Rack Support 9.1 Creation of a Cable Rack Support
Creation of a Cable Rack Support may be invoked either from the MDS Application main menu toolbar icon or from the MDS Application main menu option shown below.
The Cable Rack Frameworks form will be shown thus.
The support designer must then complete the following in order to continue with the support creation.
Support name.
This can be completed manually by entering the new support name in the text gadget.
The support designer may also use the MDS Auto Naming functionality as explained the Multi Discipline support section of this document.
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The support designer may also reselect the creation zone they require the structure to be created within if a structure is created for the selected support type.
The support designer can view and browse through the available standards by selecting the View… button.
After the support designer has completed the name and selection of the standard to use they select the OK button to display the standards creation form.
9.2 Initial Creation
The procedure and the form for creating a Cable Rack Support are basically the same as when creating a Multi Discipline Support.
Before proceeding with the creation of the support, ensure that all of the Cable Racks to be supported, and any Steelwork and/or Panels the support is to be attached to, are shown in the graphical view.
The ONLY elements that are to be supported on a Cable Rack framework are Cable Trays/Racks, currently defined as PIPE elements in PDMS.
A cable tray PIPE is identified in the MDS application by
1. The PUPRPOSE attribute of the owning ZONE, which MUST be set to TRAY, and
2. The Cable Tray Specification has a PURPOSE attribute, which MUST also be set to TRAY.
The first Cable Tray identified to be supported will become the DATUM Atta.
Click the ‘Create datum support atta’ button
Identify the straight length of cable tray to be supported from the graphical view
On successfully identifying a Cable Tray straight (FTUB) a temporary ‘lollipop’ symbol will appear at the end of the FTUB element. This symbol is only shown for ease of identification when creating or modifying a Cable Tray support.
There are a few simple ancillary supports available on Cable Tray supports. This is because in most cases the fixings to the support steel framework are regarded as being supplied by the Cable Tray contractor.
When the support creation is completed the ‘lollipop’ symbol(s) will disappear.
The Cable Tray support may be modified etc. in the same way as a Multi Discipline Support.
The Support Integrity Check form will be displayed when the OK button is clicked.
Exercise 4 – Cable Tray Supports
Create the Cable Tray support shown below use XCT01 – L Bracket Up.
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CHAPTER 10
10 HVAC Support
This chapter explains how to create a HVAC Support 10.1 Creation of a HVAC Support
Creation of a HVAC Support may be invoked either from the MDS Application main menu toolbar icon or from the MDS Application main menu option shown below.
The HVAC Frameworks form will be shown thus.
The support designer must then complete the following in order to continue with the support creation.
Support name.
This can be completed manually by entering the new support name in the text gadget
The support designer may also use the MDS Auto Naming functionality as explained the Multi Discipline support section of this document.
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The support designer may also reselect the creation zone they require the structure to be created within if a structure is created for the selected support type.
The support designer can view and browse through the available standards by selecting the View… button.
After the support designer has completed the name and selection of the standard to use they select the OK button to display the standards creation form.
10.2 Initial Creation
The procedure and the form for creating a HVAC Support are basically the same as when creating a Multi Discipline Support
Before proceeding with the creation of the support, ensure that all of the HVAC to be supported, and any Steelwork and/or Panels the support is to be attached to, are shown in the graphical view.
The ONLY elements that are to be supported on a HVAC framework are HVAC elements, currently defined as PIPE or the soft type HVAC elements in PDMS.
A HVAC PIPE/HVAC element is identified in the MDS application by
1. The PUPRPOSE attribute of the owning ZONE, which MUST be set to HVAC, and 2. The HVAC Specification has a PURPOSE attribute, which MUST also be set to HVAC.
The first HVAC element identified to be supported will become the DATUM Atta.
Click the ‘Create datum support atta’ button.
Identify the straight length of HVAC to be supported from the graphical view.
On successfully identifying a HVAC straight (FTUB) a temporary ‘lollipop’ symbol will appear at the end of the FTUB element. This symbol is only shown for ease of identification when creating or modifying a HVAC support.
There are NO ancillary supports available on HVAC supports. This is because the fixings to the support steel framework are regarded as being supplied by the HVAC contractor.
When the support creation is completed the ‘lollipop’ symbol(s) will disappear.
The HVAC may be modified etc. in the same way as a Multi Discipline Support.
The Support Integrity Check form will be displayed when the OK button is clicked.
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10.3 Force Connecting to Plines
The following support is connected to the beam and force connected to NALO of the column.
Align the vertical leg using Align Support,
Create connections, set Joint (1) to Bent_Clamp_Plate_Joint and set Joint (2) to BeamToes_Twin_Clamp_Plane_Joint.
As you can see Joint (2) requires changing to NALO
Select Force Connection to a Pline
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The Joint will rotate as shown
Use L on the Joint Alignment part of the Joint Specification form.
You will need to press L several times until the Joint is aligned correctly
L
Make sure you are only changing Joint (2)Exercise 5 – HVAC Supports
Create the following support XDT02 HVAC duct support frame
Modify the above support and add the connections as shown above.
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CHAPTER 11
11 Creation of a General Support
This chapter explains how to create a General Support. A General Support is a support on one line with no associated steelwork. For instance a u-bolt on a line positioned on a piece of main steelwork belonging to a pipe rack.
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NOTE! This section is the same for the creation of Anchors, Guide and Stops, and Slip Units.11.1 Creation of a General Support (Ancillaries)
Creation of a General Support may be invoked either from the MDS Application main menu toolbar icon or from the MDS Application main menu option shown below.
The Support form will be shown thus.
For General
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For Anchors
For Guides and Stops
For Slip Units
The support designer must then complete the following in order to continue with the support creation.
Support name.
This can be completed manually by entering the new support name in the text gadget
The support designer may also use the MDS Auto Naming functionality as explained the Multi Discipline support section of this document.
The support designer can view and browse through the available standards by selecting the View… button.
After the support designer has completed the name and selection of the standard to use they can select the OK button to display the standards creation form.
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11.2 Creating a General Support This example uses XAT01 named A-AT01.
The procedure and the form for creating a General Support are basically the same as when creating a Multi Discipline Support
Before proceeding with the creation of the support, ensure that all of the design elements to be supported, and any Steelwork and/or Panels the support is to be attached to, are shown in the graphical view.
The elements that are to be supported on a General Support are dependant on the support standard selected.
The form shows all the Ancillaries that are available but some of these may not be appropriate for use on this particular pipe, we can filter these ancillaries just to show the applicable ones.
Select Filter by Pipe Identify Tube of Pipe
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Note the progress bar.Select XAT01 – Pipe show for N.B. 3/4 “ to 20”
Select OK
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As you can see most of the icons have been greyed out as they are not appropriate for use on a General Ancillary support.
Select Create datum support atta Identify Pipe Tube
Through and ID Cursor Identify the Steelwork
As you can see in the above example the support does not reach the steelwork the support needs to be extended to meet the steel.
Select Modify Atta
Select Set Height to Steel / Bedplate Identify the Steelwork below
Dismiss
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The positioning and modification of the General Support is the same as explained in the Multi Discipline Supports section of this document.
The General Support may be modified etc. in the same way as a Multi Discipline Support.
11.3 Adding a Guide to a Ancillary (Slipper)
In this example we will add a guide to the ancillary (slipper) we have just created.
Select the Guides and Stops Icon
Enter a name or use Autoname
Select XGT01 – Pipe Guide for Insulated Pipes OK
Select Create datum support atta Identify Pipe Shoe to guide:
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11.4 Adding a Slip Unit to a Ancillary (Slipper) This is done in a similar way to the above.
Select the Slip Units Icon
Name the support
Select XSU01 – TICO bondslip unit type A size 1
OK
Select Create datum support atta Identify the Ancillary to add Slip Unit to:
As you can see the slip unit has been placed on the bottom of the slipper.
The Shoe height will need to be modified as described before.
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Exercise 6 - Creating General Support, Guide and Slip Unit
Using the above example create a guided support that has a slip unit under it.
Create supports to the following standards
XAT03 - General Support
XAN02 - Anchor Support
XGT02 – Guide Support
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CHAPTER 12
12 Trunnion Support
This chapter explains how to create a Trunnion Support 12.1 Creation of a Trunnion Support
Creation of a Trunnion Support may be invoked either from the MDS Application main menu toolbar icon or from the MDS Application main menu option shown below.
The Trunnion form will be shown thus.
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The support designer must then complete the following in order to continue with the support creation.
Support name.
This can be completed manually by entering the new support name in the text gadget or the support designer can use the MDS AutoNaming facility.
The support designer may also use the MDS Auto Naming functionality as explained the Multi Discipline support section of this document.
The support designer can view and browse through the available standards by selecting the View… button.
After the support designer has completed the name and selection of the standard to use they select the OK button to display the standards creation form.
12.2 Trunnion Creation Form This example uses XTT04 named A-TT04.
The following form will then be displayed to the support designer.
Dependant of the type of trunnion being created the support designer may create the trunnion on a straight piece of pipe, an elbow, a tee or a reducer.
The Designer selects the Datum Icon as required.
12.2.1 Creation on a straight piece of pipe
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The support designer selects the “create on tube” icon from the creation form and is asked to identify a piece of tube. The application will check the identified tube for material compatibility and bore availability of the selected standards. Any insulation on the tube is ignored.
If the material and bore are compatible the application will create the trunnion by placing a set on tee in the main line. A branch is connected to the tee that contains the components of the support. The application will scan the main line specification for a set on tee of equal bore to the main line. If the application cannot find a suitable tee an error as shown below is displayed.
The rules used to select a suitable tee is an skey of TESO with an equal bore to the main line Add Pipe /6"-A150-1035
and civil’s /FLOOR1
to the screen
Enter the name A-TT04
Select XT04 – Base ELL and Pipe Support NPS 2-36
OK
Select Create on Tube
Identify TUBE to create base support ID Pipe
Identify steelwork to set trunnion to ID Civils
The application will then prompt the support designer to identify an element so that it may calculate the length of trunnion required. The types of element that may be identified are:
BOX
If the calculated length exceeds the minimum/maximum of the standard then the length will be set to its minimum/maximum length.
If the support designer does not want to identify a design element as listed above then they can select the
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<escape> key and the maximum length will be used.
The application will then scan the current MDB for a specification that has a purpose attribute set to TRUN.
If it finds one it will only display the material stored in this specification, if not it will scan all specifications for tube material. The parent pipe material will be indicated on the selection form.
The selected material will then be used for the trunnion. If the main pipe is insulated all insulation is removed from the trunnion branch automatically.
When a trunnion is deleted the branch and connecting set on tee will be deleted.
After the initial creation the support form should look like the following.
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Notice that the creation icons have been deactivated now the trunnion has been created.
The initial distance used is the arrive diameter of the tee divided by two + 100mm The support designer may then use the available options for positioning the support.
Members of the support are listed in the member list option gadget; in this case there is only one member of a base plate. Its dimensions are listed below this gadget and in this case the minimum and maximum of the base plate the same i.e. width = 225, therefore the gadget has been deactivated.
The calculated length has been completed and the support designer may change the length by entering the new value in the gadget, again if the minimum or maximum is exceeded the application will set the length to either the minimum or maximum.
The main bore is displayed on the form along with the available trunnion bores. If the support designer selects a different bore the trunnion will be rebuilt with the new bore.
The options available for the standard will be active. An explanation of the action of the available icons can be found in the Multi Discipline Support section of this document.
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P2
P3 P1
P0 12.2.2 Creation on an elbow
The support designer selects the “create on elbow” icon from the creation form and is asked to identify an elbow. The application will check the identified elbow for material compatibility and bore availability of the selected standards. Any insulation on the elbow is ignored. It will also check that the elbow has a suitable connection point (P3). If not the application will scan the main line specification for suitable elbow and if found replace the specification reference. The rules that the application uses are shown below.
P3 is at the same position as p1 but in opposite direction P3 is the same bore as p1
The new elbow must exist within the main line specification
If the elbow is required to be flipped because the flow of the branch is the opposite way to the diagram the application will perform this automatically.
If the material, bore and elbow are compatible the application will create the trunnion. A branch is connected to the elbow that contains the components of the support. If the application cannot find a suitable elbow an error as shown below is displayed.
The Support Designer created the support in the same way as before only this time the Create on Elbow Icon is selected
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12.2.3 Creation on a Reducer
The support designer selects the “create on reducer” icon from the creation form and is asked to identify a reducer. The application will check the identified reducer for material compatibility and bore availability of the selected standards. Any insulation on the reducer is ignored. It will also check that the reducer has a
The support designer selects the “create on reducer” icon from the creation form and is asked to identify a reducer. The application will check the identified reducer for material compatibility and bore availability of the selected standards. Any insulation on the reducer is ignored. It will also check that the reducer has a