水平, 上下地震動の相関を考慮した応答の重ね合わせについて

概要

論文の詳細を見る
We discuss a method for combining each response excited by horizontal and vertical earthquakes in response spectrum analysis. In this report, we treated a single-degree-of-freedom system subjected to horizontal and vertical excitations, which represents one of the vibration modes obtained from the modal analysis of a multiple degree of freedom system. We proposed a method to combine the responses caused by horizontal and vertical excitations using a correlation coefficient between two responses and also proposed a method to evaluate the correlation coefficient by means of the power spectra of the two excitations and the frequency response function of the system under consideration. For verification of the proposed method, we conducted response combination for several earthquakes not only with the proposed method but also with the time history analysis. By comparing the two results, we showed that the proposed methods are useful.
1999-01-25