Dear sir,
Kindly confirm staad is calculated the Tortion capacity or not. If it calculates how we can check coming Tortion in the beam is less than the Tortion capacity of beams.Staad file is attached kindly advise the stringers are safe on applied tortion and how we can check it is safe.Attached picture is not giving tortion capacity of stringer.
Thank you in advance.
STEEL STAIRCASE.std
Please attach the UPT files used in the model.
I checked as per your instruction but beam no 43 is failing as per eq h.3.8 and beam 45 is safe even as per equation 0.6fy the coming stress is less than 0.6*355=213mpa .Why beam 43 is failing then.Kindly explain.
5123.STEEL STAIRCASE.std
Thank you in advance
You should use the AISC 360-10 or 360-16 design code where the torsion check as per Design Guide 9 can be invoked by assigning the design parameter TORSION 1.
Please note that any built up section imported from the Section Wizard will be designed as an equivalent I section rather than considering an actual shape of the section.