ABSTRACT
With the increase in population worldwide, the demand for modern houses is increasing. Earthquakes take a huge toll on life and property. Since the effect of seismic forces on structures is quite significant, it is important that the design of the structures must be done in the best possible way to take into account these effects and thereby aiming for an adequate structural response. In this discussion we will address in a concise way, two methods in the design of steel structures, which are linear analysis and second order effects (P-Δ). It is known that a nonlinear analysis is more accurate than a linear analysis, but on the other hand is an inefficient analysis in terms of time consuming with calculations and computer memory. So static P-delta analysis is considered here and compared with the linear response spectrum analysis of SCWB and WCSB steel frames.
