含磚牆鋼筋混凝土建物性能式耐震評估

Performance-Based Earthquake Assessment of Reinforce Concrete Buildings with Brick Wall

陳崇泰(Chong-Tai Chen)

指導教授 ： 簡秋記

中原大學/工學院/土木工程研究所/碩士(2002年)

https://doi.org/10.6840/cycu200200253

摘要

摘 要
本文針對五樓、十樓及二十樓三種不同樓層數建物，評估和探討其鋼筋混凝土構架填充磚牆前後在不同地震震度下之反應。每種建物具有三類分析構架，分別為空構架、中央跨全填磚牆構架與中央跨底層未填磚牆構架，其中磚牆部分以等值斜撐加以模擬；採用SAP2000分析軟體進行非線性靜力推覆分析，比較分析構架於地震力作用下塑鉸之分佈、各樓層層間變位角情況與磚牆對於抵抗地震側力強度之影響，並利用Vision 2000耐震評估標準判斷分析構架地震後之使用狀態。分析結果顯示，填充磚牆對於抵抗地震側力強度及層間變位角之影響隨結構樓層數愈大而降低，中央跨底層未填磚牆構架之弱層效應亦有此趨勢，即五樓中央跨底層未填磚牆構架層間變位角較中央跨全填磚牆構架平均增大3.4倍，十樓部分約1.4倍，二十樓則改變不大；此外，除了五樓中央跨底層未填磚牆構架底層層間變位角於較大地震強度下會超過評估限制值而需要加以補強外，其他分析構架大致符合評估標準。

關鍵字

等值斜撐 ； 磚牆 ； 非線性靜力推覆分析 ； 容量震譜法

並列摘要

Abstract
The aim of this thesis is to evaluate and discuss the seismic response of five stories, ten stories and twenty stories reinforced concrete buildings with and without filled brick walls. There are three kinds of analytical frames in each building, such as bare frame (B.F frame), center-filled brick wall frame (C.F frame) and the frame without brick walls filled in first story level (W.S frame). The brick wall is modeled as the equivalent truss member. The nonlinear static pushover analysis is used in SAP2000 analytical software and it is compared with the distribution of plastic hinges, the story drift ratio of each story level and the influence of brick walls on resisting the seismic force when analytical frames under an earthquake. Also, the seismic assessment criterion of Vision 2000 is employed to judge the using status of them. The analytical result reveals that the strength of frames with brick walls in resisting seismic force and story drift ratio will decrease with the increasing story level. As for the weak story effect, the story drift ratio of W.S frame is greater 3.4 times than which of C.F frame in five stories building. The result of ten stories building is about 1.4 times, and it doesn’t have apparent change in twenty stories one. Moreover, the result of other analytical frames conform the evaluation criterion approximately, but the story drift ratio of base story level of W.S frame in five stories building exceeds the limit value and it will need to be strengthened.

並列關鍵字

Vision 2000 ； nonlinear static pushover analysis ； capacity-spectrum method ； story drift ratio ； ATC-40 ； SAP2000 ； equivalent truss ； brick wall

參考文獻

20.簡秋記、邱宏澤，「既有鋼筋混凝土建築物基於性能設計方法之耐震評估」，

內政部建築研究所專題研究計劃成果報告（2000）。

整合型研究計畫二期報告，國家地震工程研究中心（2000）。

34.蔡益超、何明錦與陳清泉，「鋼筋混凝土建築物耐震能力評估法及推廣」，內政部

1.Miranda, E.,“Seismic evaluation and upgrading of existing buildings,”