| 钢筋混凝土框架结构层间位移角与构件变形关系研究 |
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| 引用本文： | 蒋欢军,吕西林.钢筋混凝土框架结构层间位移角与构件变形关系研究[J].地震工程与工程振动,2009,29(2). |
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| 作者姓名： | 蒋欢军 吕西林 |
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| 作者单位： | 同济大学,土木工程防灾国家重点实验室,上海,200092 |
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| 基金项目： | 国家自然科学基金项目(50708081,90815029);;上海市浦江人才计划项目(08PJ1409900) |
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| 摘 要： | 层间位移角已作为检验建筑结构抗震性能的主要指标之一而被广泛应用。为实现该指标在钢筋混凝土框架结构基于位移的抗震设计中的应用，研究了层间位移角与构件变形之间的关系。首先，采用对部分子结构的弹性理论分析得到了弹性阶段梁变形对层间位移角贡献比例的计算公式。接着，采用对15层钢筋混凝土框架整体结构的非线性地震反应计算结果的统计分析得到了在塑性阶段梁变形对层间位移角的贡献比例回归计算公式。所建立的计算公式反映了梁与柱的相对刚度和强度比例、层闽塑性变形程度的影响。最后，应用该方法进行了一算例分析，计算结果和试验结果比较一致。利用本文提出的计算方法可以方便地把对框架结构的层间位移需求转变为对梁、柱构件的变形要求。
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| 关 键 词： | 基于位移的抗震设计 钢筋混凝土框架 层间位移角 |
Study on the relationship between story drift and element deformation for reinforced concrete frames |
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| JIANG Huanjun,LU Xilin.Study on the relationship between story drift and element deformation for reinforced concrete frames[J].Earthquake Engineering and Engineering Vibration,2009,29(2). |
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| Authors: | JIANG Huanjun LU Xilin |
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| Institution: | State Key Laboratory of Disaster Reduction in Civil Engineering;Tongji University;Shanghai 200092;China |
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| Abstract: | Story drift has been popularly used as an index to appraise the seismic performance of building structures.The relationship between the member deformation and the story drift was studied to realize the application of this index to displacement-based seismic design of reinforced concrete(RC) frames.Firstly,the equations to determine the ratio of story drift contributed by the deformations of beams to the total story drift for frames in elastic state were derived by elastic analysis of the substructure.Second... |
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| Keywords: | displacement-based seismic design reinforced concrete frames story drift |
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