| 钢筋混凝土框架结构震后功能恢复能力的量化研究 |
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| 引用本文： | 韩建平,付志君.钢筋混凝土框架结构震后功能恢复能力的量化研究[J].世界地震工程,2018,34(1):017-23. |
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| 作者姓名： | 韩建平 付志君 |
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| 作者单位： | 1. 兰州理工大学 甘肃省土木工程防灾减灾重点实验室, 甘肃 兰州 730050;2. 兰州理工大学 西部土木工程防灾减灾教育部工程研究中心, 甘肃 兰州 730050 |
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| 摘 要： | 震后功能恢复能力是指建筑物、社区或城市等遭受地震影响后实现功能恢复的能力。以一钢筋混凝土框架结构为对象，基于OpenSees有限元分析平台，对其进行增量动力分析，得到其对应于不同损伤状态的地震易损性曲线。进而基于单体建筑损失评估理论，评估该结构在不同强度水准地震动作用下的地震损失，包括直接经济损失和间接经济损失等。在此基础上，分别利用直线型、指数型以及三角函数型功能恢复模型，在不同强度水准地震动作用下，分别计算该结构的震后功能恢复能力。结果表明:随着地震动强度的增加，基于3种恢复模型计算得到的震后功能恢复能力都在下降，而且直线型和三角函数型恢复模型得到的恢复能力均比指数型的下降更快；在同一强度水准地震动作用下，基于指数型恢复模型计算得到的震后功能恢复能力均高于直线型和三角函数型恢复模型，即使在较强水准地震动作用下，根据指数型恢复模型得到的恢复能力依然较大。而在各个强度水准地震动作用下，基于直线型和三角函数型恢复模型得到的震后功能恢复能力非常接近。
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| 关 键 词： | 震后功能恢复能力 RC框架 地震易损性 地震损失 恢复模型 |
Quantitative investigation on post-earthquake resilience capacity of reinforced concrete frame structure |
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| HAN Jianping,' target="_blank" rel="external">,FU Zhijun,' target="_blank" rel="external">.Quantitative investigation on post-earthquake resilience capacity of reinforced concrete frame structure[J].World Information On Earthquake Engineering,2018,34(1):017-23. |
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| Authors: | HAN Jianping " target="_blank">' target="_blank" rel="external"> FU Zhijun " target="_blank">' target="_blank" rel="external"> |
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| Affiliation: | 1. Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou 730050, China;2. Western Engineering Research Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China |
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| Abstract: | Post-earthquake resilience capacity is the ability of buildings, communities or cities to recover from the loss of their functionality during the damaging earthquake. In this paper, one of reinforced concrete (RC) frame structure was chosen as case study and OpenSees software was taken as analytical tool to conduct incremental dynamic analysis (IDA) on the structure. The seismic fragility curves corresponding to different damage states were obtained. Furthermore, the seismic losses, including direct economy loss and indirect economy loss of the structure were evaluated under different ground motion intensity level based on the loss assessment procedure of single building. Finally, the post-earthquake resilience capacities of the RC frame were calculated based on linear, exponential and trigonometric function recovery models under different ground motion intensity levels. The results show that the post-earthquake resilience calculated based on the three recovery models decreases with the increase of ground motion intensity level. The resilience capacities based on linear and trigonometric recovery models drop faster than that based on exponential model. The resilience capacity based on exponential recovery model is higher than those based on linear and trigonometric models under the same intensity level. The high resilience capacity is achieved based on exponential recovery model even under high intensity level. Otherwise, linear and trigonometric recovery models result in approximately the same post-earthquake resilience capacity of the structure. |
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| Keywords: | post-earthquake resilience capacity RC frame seismic fragility earthquake loss recovery model |
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