Verification of Pushover Analysis on In-Situ Test of School Buildings

Verification of Pushover Analysis on In-Situ Test of School Buildings

A method of seismic evaluation for existing buildings needs to be confirmed. Based from the capacity spectrum method of ATC-40, NCREE has developed a seismic evaluation method using pushover analysis. The properties of nonlinear hinges for nonlinear pushover analysis of low-rise RC structure have been determined. However, different definitions of nonlinear hinges will cause different solutions, thus in-situ test is the best way to verify the assumptions made for pushover analysis. In the past four years, four in-situ tests of school buildings have been carried out. The experimental results are valuable to our researches. In this paper, the ETABS pushover analysis results are compared with the experimental results to verify the accuracy of the present study. Not only this discusses the mechanism of nonlinear hinges but also delivers a reference for modifying the properties of nonlinear hinges in the future. The proposed seismic evaluation method is beneficial for engineers in doing seismic evaluation of low-rise buildings.