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  • 學位論文

鋼筋混凝土結構於不同類型地震下之損傷分析

RC structure damage analysis with different type earthquake function

指導教授 : 廖文義
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摘要


本研究以鋼筋混凝土結構為對象,探討鋼筋混凝土結構在不同型式地震作用下之結構損傷評估。RC構架各桿件降伏彎矩、極限彎矩與降伏轉角、極限轉角利用X-TRACT求得,帶入有限元素分析軟體SAP2000中進行分析鋼筋混凝土結構承受不同地震下之非線性歷時反應,輸入地震為台北盆地於九二一集集地震下之之地震紀錄,以此些地震紀錄為輸入進行RC結構非線性動力分析,針對位移、基底剪力、遲滯迴圈、遲滯能及損傷指標(Damage Index)等設計與評估之常用參數,進行分析比較,由研究發現於九二一集集地震下結構物之韌性需求有明顯之不同,本研究所統計之結果可作為結構耐震評估的參考。

並列摘要


This research aimed on the damage evaluation of reinforced concrete structure under different type earthquake excitations. The RC building structures were designed base on the Taiwan Building Seismic Design Code. The yielding moment, ultimate moment and corresponding rotations of the RC cross section were obtained by using the software X-TRACT. The analysis software SAP2000 was adopted to analyze the nonlinear seismic responses of reinforced concrete structures to different type ground motions. The Takeda modal was adopted to simulate the nonlinear hysteretic behavior of RC members. The input ground motions are the earthquake records of Taipei basin that recorded at 1999 921 earthquake. The responses such as the base shear, story drift, hysteretic energy and the corresponding damage index were analyzed and compare with the requirement of seismic design code. The comparison shows that the ductility demand base on this nonlinear analysis is differ with the design code. Therefore, the results of this research can be a reference for the future modification of the seismic design code.

參考文獻


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