Seismic Analysis of R/C Frame‐Wall Structures

Abstract

Inelastic responses of four irregular multistory reinforced concrete frame‐wall structures to strong base motions are analyzed using response spectrum methods, which account explicitly for effects of inelastic response. The structures have been constructed in small scale, and responses during experimental earthquake simulations are reported. Maximum measured responses are compared with responses calculated using concepts of inelastic response spectra and using elastic response spectra for a substitute structure. Both analysis procedures are found to produce substantially accurate estimates of maximum responses if initial stiffnesses and ultimate capacities are correctly estimated. Implications of the analyses concerning irregularities in structural systems and concerning code‐implied drifts are presented.