Evaluation of ASCE-41 Nonlinear Static Procedure Using Recorded Motions of Reinforced-Concrete Buildings

Abstract

This paper evaluates the nonlinear static procedures (NSP) specified in the ASCE-41 document using strong motion records of five reinforced-concrete buildings. For this purpose, seismic demands – peak roof displacements, floor displacements, and inter-story drifts – estimated from the NSP are compared with the values derived from recorded motions. It is shown that the ASCE-41 NSP may significantly under- or over-estimate the peak roof displacements. While the NSP may provide accurate estimates of floor displacements, it is unable to provide accurate estimates of story drifts, especially for taller buildings where higher modes may be more significant.