Tribune Roof Beam Deflection Limit warning

[burakerkişi]

Hello, I am getting a warning that the beam deflection limit has been exceeded in the report while analyzing the Tribune Steel roof. I used single braces to limit the beam deflection but did not get the desired output. I am waiting for your help to solve the deflection problem and if there are any misused elements. (Can I define a rope instead of a single İdecad steel cross? How?) Thank you.

 

[nurgulkaya]

Hello there; Neither does PMM on your beams. In order to solve the deflection and PMM problem, you first have a 10 m cantilever transition, you can switch to HEA type instead of choosing the sections at ipe 360 levels. Select all beams for deflection, enter their properties, and edit the deflection calculation method using the moment diagram option from the design tab. The deflection calculation is affected by the support conditions, so you should use the By moment diagram option since you have one free end. The structural behavior seems normal in general, your coefficients such as K, 1, LTB are at appropriate intervals, that is, your supports such as diagonals, stability beams are suitable, but your sections are small. You have a serious snow load, make sure your snow load is correct in terms of units and levels. Then you will need to increase the cross section. Good work.