| 基于能量方法设计的RC框架结构易损性分析 |
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| 引用本文： | 王中阳,车佳玲,张尚荣,包超.基于能量方法设计的RC框架结构易损性分析[J].震灾防御技术,2018,13(3):524-533. |
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| 作者姓名： | 王中阳 车佳玲 张尚荣 包超 |
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| 作者单位： | 宁夏大学, 土木与水利工程学院, 银川 750021 |
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| 基金项目： | 国家自然科学基金项目（51408328、51608283），宁夏青年科技人才托举工程 |
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| 摘 要： | 基于“强柱弱梁”的屈服机制，依据能量平衡方法设计了某6层RC框架结构，采用震级-震中距条带地震动记录选取方法，选取12条随机地震动，利用Perform-3D有限元分析软件对结构进行增量动力（IDA）分析，得到了结构的地震易损性曲线、破坏状态概率曲线以及结构破坏概率矩阵。分析结果表明:该方法设计的结构能够形成预设的“强柱弱梁”屈服机制，可以保证结构中梁充分参与耗能，同时结构具有较强的抗倒塌能力，可以满足“小震不坏，中震可修，大震不倒”的性能要求。
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| 关 键 词： | 能量平衡方法 失效模式 易损性分析 地震需求分析 增量动力分析 |
| 收稿时间： | 2017/11/20 0:00:00 |
Seismic Fragility Analysis of RC Frame Structure Based on Energy Balance |
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| Wang Zhongyang,Che Jialing,Zhang Shangrong and Bao Chao.Seismic Fragility Analysis of RC Frame Structure Based on Energy Balance[J].Technology for Earthquake Disaster Prevention,2018,13(3):524-533. |
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| Authors: | Wang Zhongyang Che Jialing Zhang Shangrong and Bao Chao |
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| Institution: | School of Civil Engineering and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China |
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| Abstract: | The energy-based seismic design method of RC framed structure of the "strong column with weak beam" was proposed, and 6 layer RC frame structures were designed by selecting ground motion records using magnitude epicentral distance strips in this paper. We selected 12 ground motions and analyzed the RC frames structure through the IDA method by Perform-3D, and obtained the seismic fragility curves, failure probability curves and the structural failure probability matrices. The results showed that the structure designed by this method can form the preset "strong column with weak beam" yielding mechanism. It makes promise that the beam in the structure is fully involved in energy dissipation with strong anti-collapse capacity, not only can satisfy fully operational level under frequent earthquake and fulfill reparably operational level under rare earthquake, but also satisfy near collapse level under extremely rare earthquakes. |
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| Keywords: | Energy balance method Failure mode Vulnerability analysis Seismic demand analysis Incremental dynamic analysis |
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