REDUCED MODEL FOR EARTHQUAKE RESPONSE ANALYSIS OF BUILDING FRAMES WITH COMPENSATION ALGORITHM OF TRANSFER FUNCTION DIFFERENCES

Abstract

In this paper, an efficient time-history response analysis method is proposed which uses a reduced model and can evaluate the response of an original model with high accuracy. The advantageous feature of this method is to transform the time-history force at each degree-of-freedom of the original model into a reduced one. This method consists of two steps. First, the structural model reduction is performed. Then, inertia forces in the reduced model under ground motion input are processed in the frequency domain to reduce the difference between the transfer function of the original model and that of the reduced model.