Modal Displacement Based seismic Design of multi-story one way asymmetric plan building structures

摘要

This paper presents the extension of two new displacement based seismic design methods referred to collectively as Modal Displacement Based Design (MDBD) to multistory one way asymmetric plan wall structures. The proposed design procedures are verified for a 10 story RC wall structure. The first method, called 'Modal Pushover Design' (MPD), is iterative at the single degree of freedom (SDF) system response spectra (RS) level and the second, called 'Direct Modal Pushover Design' (DMPD), is non-iterative. Advantages of MDBD methods include direct consideration of torsional and higher mode effects in the design procedure and lighter reliance on empirical capacity design equations for establishing design shear and elastic moment capacities.