Steel Beams with low compressive force failing in slenderness

RE: Steel Beams with low compressive force failing in slenderness

Abhisek M — Tue, 31 May 2022 09:24:53 GMT

No, there is no way to bypass the force values.

RE: Steel Beams with low compressive force failing in slenderness

manmohit singh — Tue, 31 May 2022 09:13:41 GMT

Thanks for the reply.

I am aware of Main and Tmain parameters.

My query is do i have to check each failed member for the extent of compressive force developing in them?

Is there any way Staad could ignore such small values automatically?

Regards

RE: Steel Beams with low compressive force failing in slenderness

Abhisek M — Tue, 31 May 2022 07:10:07 GMT

You will not be able to ignore force values but can alter the slenderness check criteria.

You can use MAIN and TMAIN parameter with limiting values to direct program to check slenderness against that limit.

For example here if you use MAIN 400 for the failed section then it will be passed as it will be checked against a higher limit of 400 compared to default value of 180 or 200 depending on code.

You can bypass the slenderness check also using 1 or -1 value depending on code.

Refer below links for more details.

https://communities.bentley.com/products/ram-staad/f/ram-staad-forum/174000/slenderness-failure

https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/29075/steel-design-output-indicates-a-slenderness-failure

Hope this helps!