混凝土構架之振動台試驗與模擬分析

Shaking Table Test and Simulation of RC Frams

賴弘勛(Hung-Hsun Lai)

指導教授 ： 廖文義

國立臺北科技大學/工程學院/土木與防災研究所/碩士(2009年)

摘要

本文為進行單層二跨鋼筋混凝土(RC)構架及兩層樓鋼筋混凝土(RC)構架之振動台試驗，並進行非線性動力歷時分析與試驗結果比對。試驗採用921集集大地震測站所量測之加速度歷時資料，依次放大倍率，量測結構之位移、加速度等動態反應。在分析模式方面，乃採用有限元素分析程式Sap2000Nonlinear再配合Takeda遲滯模式，進行模擬分析鋼筋混凝土結構承受地震加速度歷時記錄之非線性歷時反應。研究成果顯示，本研究採用之非線性歷時分析可以有效模擬出地震作用下，結構物所產生之受損狀態，且分析所得樓層之最大位移反應與試驗成果頗為吻合。

關鍵字

鋼筋混凝土 ； 非線性歷時分析 ； 振動台試驗

並列摘要

This thesis investigates the dynamic responses of four single.floor.two.bays RC frames and a two.story.one.bay RC frame by shake table test. The nonlinear dynamic history analyses are also performed and compared with the results obtained from shake table tests. In the shake table test, the input ground motions are the acceleration time histories that recorded at the 921 Ji.Ji earthquake. The story drift, roof acceleration and some dynamic responses of the tested frames are measured and the dynamic properties of tested frames have discussed in this study. In the numerical simulation, the finite element analysis programs Sap2000 with the Takeda hysteresis model have adopted as the analysis tool for analyzing the non.linear behaviors of the tested RC frames. From the comparison of analyzed results with those tested results, show that the modeling methodology proposed in this research can actually simulate the damage conditions and drift ratio of the RC frames structures under earthquake excitations.

並列關鍵字

Reinforced concrete ； Nonlinear time history analysis ； Shake table

參考文獻

【1】 林炳昌、陳政杰、蕭志民、林志忠「功能設計法檢核樓房層間變位角時構材EI值之考量」，中原學報第 三十一卷 第一期，pp.7.19, 2003。

【4】 FEMA 273, NEHRP Guidelines for the Seismic Rehabilitation of Building , Federal Emergency Management Agency, Washingtion,1997.

【7】 劉育成，強震時抗彎構架桿件元素韌性因子需求分佈之研究，碩士，國立成功大學土木工程系碩士論文，2003。

【8】 Amir Z. Fam and Sami H. Rizkalla, “Behavior of Axially Loaded Concrete.Filled Circular Fiber.Reinforced Polymer Tubes.” ACI Structural Journal, Vol.98, No.3, pp. 280~289, May.June, 2001.

【10】 Wilson, E. L., Yuan, M..W., and Dickens, J. M. (1982). “Dynamic Analysis by Direct Superposition of Ritz Vectors,” Earthquake Engineering and Structural Dynamics, Vol.10, pp. 813.821.