Load combinations ASCE 7-10 1

[VillegasST]

Colleagues:

I am not familiar with ASCE 7-10 Minimum Design Loads for Buildings and Other Structures, but I need to make the structural analysis and design of a building according to that document.

I undrestand thay I shall use basic load combinations of section 2.3.2 and combination 5 and 7 must consider factors mentioned in section 12.4.2.3 for strength design. However I see load combinations including "overstrength factor", section 12.4.3. Question is:

In a Site Class C, Steel Ordinary Moment Frames, shall I use seismic Load effect including overstrength factor?. Is it necessary to use overstrength in all cases?. If not, when is it necessary to be used?.

Thanks for your help.

Regards,

 

[JAE]

The overstrength factor is only used when specifically required within the body of ASCE 7. Usually it is applied to things like collectors and connections at the ends of braces.

 

[DST148]

@VillegasST - Try thread726-126245 and thread507-313773.