| 中强震下砌体结构损伤检测方法研究 |
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| 引用本文： | 祝叶,罗凡.中强震下砌体结构损伤检测方法研究[J].西北地震学报,2018,40(5):976-982. |
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| 作者姓名： | 祝叶 罗凡 |
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| 作者单位： | 武汉职业技术学院, 湖北 武汉 430074,华中科技大学, 湖北 武汉 430074 |
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| 基金项目： | 国家自然科学基金（51629801） |
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| 摘 要： | 当前地震记录法检测中强震下砌体结构损伤时,基于已知砌体结构地震动记录实施损伤检测存在较高的局限性。提出新的中强震下砌体结构损伤检测方法,利用DASP动态测试分析仪和891型的压电式位移传感器,检测拟静力试验后的砌体结构模型,采用参数互补校正方法得到受损砌体结构的自振频率和振型检测,通过有限元分析获取砌体结构位移,依据频率和位移采用信号匹配方法检测砌体结构损伤情况,根据墙体刚度变化检测中强震下砌体结构的损伤程度。实验证明所提方法可对中强震下砌体结构损伤情况进行准确检测。
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| 关 键 词： | 中强震 砌体结构 损伤检测 自振频率 有限元模型 |
| 收稿时间： | 2017/8/20 0:00:00 |
A Damage Detection Method for Masonry Structuresunder Moderate-Strong Earthquakes |
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| ZHU Ye and LUO Fan.A Damage Detection Method for Masonry Structuresunder Moderate-Strong Earthquakes[J].Northwestern Seismological Journal,2018,40(5):976-982. |
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| Authors: | ZHU Ye and LUO Fan |
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| Institution: | Wuhan Polytechnic, Wuhan 430074, Hubei, China and Huazhong University of Science and Technology, Wuhan 430074, Hubei, China |
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| Abstract: | When detecting the damage of masonry structures under moderate-strong earthquakes, there are high limitations with the current seismic record method, as it is based on the known ground motion records of masonry structures. A new method for detecting damage of masonry structures under medium-strong earthquakes is proposed. A double-arm spectrometric (DASP) dynamic test analyzer and an 891-type piezoelectric displacement sensor were used to detect the masonry structure model after quasi-static testing, and the parameters inter-revising method was used to obtain the natural frequency and vibration mode of the structure. The displacement of the masonry structure was obtained by finite element analysis. The damage of the masonry structure was detected by the signal matching method according to the frequency and displacement. The experiment proved that the proposed method can accurately detect the damage of masonry structures under medium and strong earthquakes. |
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| Keywords: | moderate-strong earthquake masonry structure damage detection natural frequency finite element model |
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