Journals Proceedings

Abstract

Pushover analysis or nonlinear static analysis is a very important tool for vulnerability assessment of building during a seismic event since it is relatively simple and convenient as compared to inelastic dynamic analysis. Pushover curve or capacity curve derived from this analysis can be represented by a bilinear capacity curve which depends on various structural parameters. Confinement of reinforcement of column plays an important role in overall lateral capacity of a structure. This paper aims to study possible effect of column confinement on bilinear capacity curve of typical RC frame structures in Bangladesh. Reinforced concrete building are modeled and analyzed for different transverse reinforcement spacing. Some other parameters like column size, beam size are also kept as variable based on typical construction practice in Bangladesh. It has been found that transverse reinforcement can significantly improve the lateral resistance of a structure depending on its spacing and strength of concrete.