EARTHQUAKE RESPONSE ANALYSIS OF A 20-STORY RC BUILDING UNDER LONG PERIOD SEISMIC GROUND MOTION

摘要

(1)In the pre-analysis, for the larger motions, the analytical results became the underestimate for the test results. (2)It was confirmed that the test results showed a more significant slip property than the analytical results. (3)Modifying the width of floor slabs contributing to the flexural strength of beams and the hysteresis modeling of the beams in the analytical program, the accuracy of the analysis for the higher level of ground motions was improved. However, the disagreement of the analytical and the test results was observed for one case using the relatively low level of ground motion. (4)From the comparison between the results of the capacity spectrum method and the test results, it was clarified that the disagreement for the one case was caused by the delicate difference of the building period between the test and analysis.