Staad Pro. V8i : Query related to Analysis and Design of Structural Steel Members

Dear Sir,

We have cases for the Analysis and Design of Structural steel members as noted below and in the attachment. Please advice with the algorithm, the possibility of simulating the inputs in the Staad Pro to match the conditions as below to get the structural behavior in the Analysis and Design.

 

Case 1: Beam with Pinned / Fixed ends

1)      The member ends will be with pinned support initially, and the dead loads are applied with this stage, so the internal forces in the members and deflection due to dead loads are locked.

2)      During this stage, member ends support are to be converted as fixed ends, then the pinned supports to be removed, and then the live loads and other loads are to be applied to the deflected shape of the structure caused by point 1 (case 1).

 

Case 2: Portal frame (two columns and a beam connecting the columns at top, with pinned/fixed base for columns)

1)      In the portal frame, the beam member end releases will be with pinned support initially (beam to column with shear connections – simple joint), and the dead loads are applied with this condition, so the internal forces in the members and deflection due to dead loads are locked.

2)      During this condition, member ends support are to be converted as fixed ends (member end releases to be removed, beam to column with moment connections – Rigid joint), then the pinned supports to be removed, and then the live loads and other loads are to be applied to the deflected shape of the structure caused by point 1 (case 2).

 

Thank you,

Regards,

K. Mahesh Kumar

Staad Pro Query for Analysis and Design 14.08.13.pdf