Unbraced Length Ratio (Minor LTB) SAP 2000
Unbraced Length Ratio (Minor LTB) SAP 2000
(OP)
I am designing a steel structure which holds the hollow core slab on first floor as you can see in attached file so my question is that the sap is considering the unbraced length ratio in minor axis for the beam is 3 and beam is failing can I changed the beam unbraced length ratio to 1. This beam is supporting the 320 mm deep hollow core slab.
When I changed unbraced length ratio to 1 manually beam is working comfortably with 40 percent ratio.
Please see the attachment for more clarification.
When I changed unbraced length ratio to 1 manually beam is working comfortably with 40 percent ratio.
Please see the attachment for more clarification.





