Hi, I need to perform a secondary order analysis in STAAD.Pro.
Question: Is there a command in STAAD.Pro to reduce the stiffness of the element by multiplying a factor to the gross element stiffness when modeling for the 2nd order analysis?
I look forward to your reply.
Please advise.
Thanks,
Denisson
This is done automatically by the program when a Direct Analysis type is used.
Hi Modestas, thanks for the reply. The Direct Method is typically used for steel structures. It is relatively a newly developed stability design method that recognizes the limitations of ELM in the design of increasingly complex steel structures. However, is an analysis method that can be used regardless of the structure type.
I am planning using the P-Delta analysis since the structure I am modeling is concrete.
In such case you may use the Property Reduction Factors, I think:
That would work. Thanks.