Exercise 1 – Loading MDS
5.14 Creation Options
The support may now be modified using the various icons available to the support designer. Any icons that are not required by the particular standard will be deactivated (greyed out).
The icons and options, which appear on each support type, is dependant on its usage and orientation, therefore not all icons and options appear on every support form or can be used in every orientation.
1. Choose Steelwork Template – This icon displays the template selection form and enables the support designer to change the steelwork size and/or configuration. If the support exists with the AVEVA Plant database the support will be regenerated using the dimensions stored on the main creation form.
2. Create by Cursor – This icon prompts the support designer to identify design elements in order to calculate the dimension required to generate the support. If the support exists with the AVEVA Plant database the support will be regenerated using the dimensions calculated and stored on the main creation form.
3. Create by Dimensions – This icon generate the support using the dimensions stored on the main creation form. If the support exists with the AVEVA Plant database the support will be regenerated using the dimensions stored in the main creation form.
4. Create by Clearance – This icon prompts the support designer to identify design elements in order to calculate the dimension required to generate the support. The clearance value used is stored on the MDS Application defaults form. The application will calculate the dimensions required by using the geometry of all the atta’s owned by the support. If the support exists with the AVEVA Plant database the support will be regenerated using the dimensions calculated and stored on the main creation form.
5. & 6. Reverse Dimensions – Using this icon modifies the dimensions stored in the form. If dimension 2 is offset i.e. not half of dimension 1 it will adjust the dimension to offset the support in the opposite direction. This will be only on supports that are appropriate. The two sketches
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below show an example of what happens when an FT09 has dimensions 1, 2 reversed and dimensions 3, 4 reversed.
Dimensions 1 and 2 Reversed
Dimensions 3 and 4 Reversed
7. 8 and 9 Add Pipe/HVAC and Tray – This icon enables the support designer to identify a pipe, HVAC and tray element to be added to the support. If the support designer identifies a pipe then the application will scan through all the available standards and present to the support designer only those applicable to the identified pipe. The application uses the material of the pipe against the standard, the bore and insulation thickness as filters.
10. Add Cross Bar – For those supports that enable the creation of a cross bar the support designer is prompted to identify the atta already supported by the support to have an additional cross bar created.
11. Mirror Frame – This icon will mirror the framework perpendicular to the datum atta direction.
Before Mirror After Mirror
12. Rotate Frame – This icon will rotate the framework about the datum atta. The example being used XFT09 is not suitable for the rotate functionality so the examples below use XFT03.
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Before Rotate After Rotate
13. Align Support – When the support designer is creating a support he may position the datum atta through a piece of steelwork but the exact position of the support along a piece of tube may not be calculable until the framework has been created. This functionality enables the support designer to select a position on the support using the EDG (Event Driven Graphics) facility and then another point anywhere in the design.
The application will then calculate the direction and position to move the support. In more cases than not the user will identify the element origin to use for repositioning, please make sure that the EDG selection is set to Element Snap in this case
Select Align Support
Select Element and Snap
Identify the Vertical Steel (1) Identity The Supporting Steel (2)
Select OK
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The Pipe Support Steelwork will now be aligned with the Main Steel.
14. Modify Section – If the selected templates allows for the modification of an individual section the application will display the modify section start/end form from the Beams and Columns Application.
The support designer will be presented with a message asking if they are sure they want to continue and modify the section. Any modifications completed with this icon will be overwritten when the support is regenerated by the application.
If you select Yes
You can use this form to Modify section sizes and positions etc.
15. Add Packer. - This enables the support designer to add packing pieces to support atta’s that are not sitting directly on the steelwork.
16. Delete Packer - This will enable the support designer to delete a packer already added to the support framework.
17. Rotate All Atta’s – This enables all atta’s on the support to be rotated by a specified angle.
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18. Rotate Atta – This enables an individual atta to be rotated. The align button can be used to align the atta perpendicular to an identified surface.
19. Modify Datum Atta – This enables the support designer to declare another atta on the support to be used as the datum. This is only necessary when the datum atta is to be deleted from the support.
When this is done the support may change in its position, this is because the datum position has now changed and the support will be regenerated using this datum.
20. Reference Bedplates – This can be used to reference the support to various connection items. If the item being referenced is located in a read only db, then a one way connection is made.
21. Associate Atta – When a pipe is added to a support via the atta created in the branch an associate is made between the first cross bar and the atta. This is used by the integrity checker to check if the atta is being supported and how far it is away from its supporting steelwork. When creating a cross bar the support designer identifies an atta, in some cases two atta’s are required to be associated with a secondary cross bar. If the support designer does not identify the second atta then the integrity checked will stop the support designer from exiting the support because it is to far away from the first cross bar. This is used to associate any atta that is not identified on the initial creation of a cross bar.
22. View Associations – This will colour code the graphical display so that the support designer can view the current associations to check that they have been defined correctly. When the support designer first initialises this functionality the first cross bar and its associated atta’s are coloured. The support designer then can select another cross bar with the cursor and its associated atta’s will be coloured.
The support designer enters escape to exit.
23. Flip Field Weld – When a field weld is required on one end of a section, for example XFT07 a post, the application selects the longest section from the centreline of the pipe to the end of the section. In some cases this field weld is required at the other end; in this case this icon can be used to move the field weld. This has been superseded by the new welding functionality.
24. Modify Atta – The support designer will be asked to select which atta they want to modify if more than one exists and the following form is displayed.
If the selected ancillary has any modifiable properties then the support designer will be able to modify them with the range displayed on the form. As can be seen the above example is displaying the height and length
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as modifiable properties. Both of these values may be manually changed, but only within the maximum and minimum limits.
1. Clicking on the ‘Set Parameters to Default’ button will set the ‘Height’ and ‘Length’
values to their default values.
2. The ‘Set Height to Steel/Bedplate’ button is a graphical method of defining the ‘Height’
value of the support, but only within the maximum and minimum values described above.
3. Clicking on the ‘Modify Ancillary Type…’ button will display the same ‘Ancillary Selection’ form used when the atta was first selected.
The ancillary type may now be reselected from the available list as required. Click the OK button to change the ancillary type or click the Cancel button to maintain the existing ancillary type and dimensions.
4. Modify Ancillary
Used to change the Ancillary settings
25. Delete Atta – This enables the support designer to identify an atta to delete from the support. This will also rename the support atta’s that are left in the correct order.
26. Nudge Support – This enable the support designer to nudge the whole support including all atta’s a specified distance either upstream or downstream of the datum support.
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27. Spooling – This enables the support designer to spool the steelwork for erection purposes. The spool number is depicted on the MDS drawing along side the part number. I.e. 5(2) designates part number 5 belongs to spool 2.
28. Set Section Material – When the support designer first creates the framework if the material of each section is set in the template it will be copied to the support. This enables the support designer to reselect the material for the support within the design database.
29. Copy Like – This enables the support designer to identify a support of the same type and the dimension used for the identified support will be copied to the new support.
30. View Standard – This will display the standards plot file.
31. Create Connections - The framework connectivity can be maintained to the main steelwork by the addition of joints. After the framework has been positioned correctly select the ‘create connections’
button on the support form and the necessary nodes will be created automatically. The support designer will then be presented with the modify joints form where they can select the required joints and settings.
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Name sure you have aligned the steelwork as describe above before attempting and connections.Select Create Connections
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Select Apply to All Joints Select /Bent_Clamp_Plate_Joint Select Apply and Dismiss
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Note that a secondary node will have been created so the Support Designer will need access to the Supporting Steelwork.32. Modify Connections – If the connections to the main steelwork exist then the joint specification form will be displayed with the current joint type selected.
Select Modify Connections
Select Joint 2
Select BeamFLanges_twin_Clamp_Plant_Joint
Select Apply and Dismiss
You can see that Joint 2 is now showing a Beam Support.
33. Delete Connections - The framework connectivity can be removed by deleting the existing joints.
34. Force Connections – In some circumstances the pline found to use, as the connected pline is incorrect. The application selects the nearest pline and sometimes it finds the pline running in space at
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the intersection of the centreline and web edge of an I section. If this is the case the support designer can identify the pline required with the cursor. This will happen infrequently.
35. Show/Hide Framework Dimensions – This will graphically display a set of dimension required by the selected standard. If no dimensions are set on the form it will use a default set of dimensions. These are useful when a support designer is new to the application.
36. Centre on Support – This will centre the support datum atta to the centre of the graphical view but will not change the scale.
37. ADP Drawlist – This icon enables the support designer to add elements to the MDS drawing. Each drawing will contain the structural steel, all pipes and any connected steel by default. This extra draw list may be used to add items of interest to the drawing.
38. Modify ADP Location Position – When a location plan is created on the MDS drawing the origin of the datum atta is used to locate the support to the nearest columns. This position may be modified to any point in the design database by using the EDG (Event Driven Graphics) sub system.
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39. Trimmer Required – This sets a logical flag at the support structure element to record the fact that a trimmer is required to be added to the main structural steel. A report is provided that will list all supports requiring trimmer steel to be added. If the support is connected to steelwork the support designer will not be allowed to set the trimmer required flag.
40. Set Ancillary Material – This enables the support designer to set the material of the ancillaries. By default the material is set when the support designer creates the ancillary and would not be normally modified.
41. Copy Ancillary – This enables the support designer to copy an existing ancillary, the new ancillary will be created in the same branch. It will be rotated by 90 degrees.
42. Nudge Ancillaries – This enables the support designer to nudge one or more ancillaries independent of the supporting structure.
43. Set Trunnion Length – This will only be active for the trunnion standards. This enables the support designer to select a design element to calculate the trunnion length required. It will check that the calculated length does not exceed the minimum or maximum values for the standards being created.
44. Set Trunnion Material – This will only be active for the trunnion standards. This will 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.
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45. Add Notes – This enables the support designer to add notes to the MDS drawing, the support designer selects the member of the support they require to add a note to. They then complete the text required. By default it will use the origin of the selected member to point the leader line to. The support designer may modify this origin position.
46. Reconnect a hanger to another beam.
47. Flip Ancillary – Used to Flip Ancillaries through 180 Deg.
48. Data – Used to add Pipe Stress Interface Data to the Ancillary.
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49. Flip ADP View Directions – Can be used to aid clarity during Drawing Production.
50. Convert Support to a Special – Used to change the MDS Support to a Special so that extra steelwork can be added.
51. Isometric Control – Used to change the appearance of the Pipe Support on the Isometric.
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52. Framework Weld Selection -
53. Repeat Atta – MDS allows you to repeat a support from one line (pipe) to another. This is possible for standalone ancillaries and support frames only; the repeat function is not available for trunnions and hangers. (Note this differs from the Copying a Support function). Two repeat functions are available:
one is used for repeating a standalone ancillary, the other for repeating a support frame.
54. Trim Section End to Surface – used when the support section intersects with a sloping surface particularly useful when a Support goes onto a sloping panel.