Dynamic Modal Analyses of Building Structures Employing Site-Specific Response Spectra Versus Code Response Spectrum Models

This paper is aimed at giving structural designers guidance on how to make use of elastic site-specific response spectra for the dynamic modal analysis a structure in support its design. The pushover an RC building forming part non-linear static procedure (that can be used predict seismic demand without relying code-stipulated default R factor) also presented. Seismic structures based help achieve more optimised, and cost-effective, design compared conventional approach employing spectrum model stipulated by code different site classes. Currently, methodology only adopted major projects which enough resources are available engage experts who skilled operating procedure; thus, engineering practice still limited despite merits procedure. Deriving requires database representative ground motion records developed. Extra analytical tasks undertaken include processing bore log data, analyses, selection/scaling bedrock accelerograms input into analyses. Guidelines implementing this currently lacking. To promote wide adoption design, article presents developing required spectra, as well guidelines applying these analyses linear, or nonlinear, models building. Non-linear accomplished dealing with macroscopic illustrated case study.