A Study on Seismic Response Characteristics of High-Rise RC Buildings with Height of at Most 60 Meters in OS1·OS2 Areas

Abstract

The current seismic design doesn't require the time-history response analysis for high-rise buildings with height of at most 60 meters, and the safety verification is practiced by the lateral load-carrying capacity calculation or the limit strength calculation. Although the former conventional calculation is still popular in Japan, it doesn't explicitly evaluate the buildings drift responses to the design spectra representing extremely rare earthquakes. Therefore, in this study, the time-history response analysis was performed on multiple high-rise RC buildings designed based on the lateral load-carrying capacity calculation in the OS1 and OS2 areas on the Osaka Plain, and mainly the drift responses were evaluated. The present paper mainly discusses the relationships between several building specifications and drift responses based on the analytical results.