Duggans Standard Anti-Sag Bay (RoofBay)

Tekla Structures
Not version-specific
Tekla Structures
Cold Rolled
Duggan Steel
duggans
standard anti-sag bay
RoofBay
roof bay
Environment
Not environment-specific

The Duggan Steel Standard Anti-Sag Bay macro can be used to define tube struts, threaded bars, tiled roof struts and eaves braces between selected purlins to produce a standard anti sag system.

Before and after

Image
tekla-structures-duggans-std-anti-sag-bay-before.png
 
Image
tekla-structures-duggans-std-anti-sag-bay-after.png


Notes

  • Any modification of the selected parts will cause this macro to be updated.
  • Most of the data required for this macro is fixed by Duggan Steel and stored in a series of data files supplied with Tekla Structures. Where standard data is not applicable, then certain items can be modified through the Parameters tab of the properties panel, but it is also possible to tailor the data files to individual requirements. This would require assistance from Tekla Structures support. 
  • Where this standard macro will not define all the supports required, e.g. around door or window openings, it may be necessary to use the Non-Standard Anti-Sag macro. It is possible to combine the two in one bay, by selecting smaller groups for which the standard macro is suitable, and then using the Non-Standard macro to define additional supports individually where required. 
  • Only one eaves beam may be selected for inclusion in the bay.
  • All purlins in the bay must have the same section depth.
  • All purlin lengths must be parallel.
  • All purlins must have the same offset from the rafter. 

Selection order example

  1. Rafter
  2. Rafter
  3. Eaves beam (if required)
  4. Two or more purlins
  5. Click middle mouse button
Image
tekla-structures-duggans-std-anti-sag-bay-selection-order.png

See also

Duggans cold rolled - Important information
Duggans Standard Anti-Sag Bay - Parameters tab
Duggans Standard Anti-Sag Bay - Bolts tab
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