| 略阳县农居房屋抗震现状调查与评价研究 |
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| 引用本文： | 郭光玲,郭瑞,徐乾.略阳县农居房屋抗震现状调查与评价研究[J].震灾防御技术,2021,16(3):492-500. |
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| 作者姓名： | 郭光玲 郭瑞 徐乾 |
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| 作者单位： | 陕西理工大学 土木工程与建筑学院，陕西汉中 723000 |
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| 基金项目： | 陕西省自然科学基础研究计划项目（2019JQ-833）；陕西省教育厅科学研究计划专项项目（16JK1143） |
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| 摘 要： | 为精准识别贫困山区农居房屋结构现状完好程度，本文开展略阳县境内41894栋农居房屋抗震现状实地调查，搜集整理域内孕灾环境和致灾因子强度，统计分析域内各行政镇（办）经济水平、农居房屋抗震结构类型和震害等级，预测震害矩阵，计算平均震害指数，并评价抗震能力。研究结果表明:域内农居房屋抗震结构类型包括土木结构、砖木结构和砖混结构；域内农居房屋在VI度地震作用下基本完好的比例为74.04%，在VII度地震作用下发生轻微破坏以下震害等级的比例为83.45%，在VIII度地震作用下发生中等破坏以下震害等级的比例为85.46%；域内农居房屋在地震烈度为VI、VII、VIII、IX、X度时的平均震害指数分别为0.13、0.23、0.32、0.49、0.71，抗震性能较差，不满足“小震不坏、中震可修、大震不倒”的抗震设防目标。
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| 关 键 词： | 农居房屋 结构类型 震害等级 震害指数 抗震能力 |
| 收稿时间： | 2020-11-10 |
Investigation and Evaluation of Earthquake Resistance of Rural Houses in Lueyang County |
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| Guo Guangling,Guo Rui,Xu Qian.Investigation and Evaluation of Earthquake Resistance of Rural Houses in Lueyang County[J].Technology for Earthquake Disaster Prevention,2021,16(3):492-500. |
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| Authors: | Guo Guangling Guo Rui Xu Qian |
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| Institution: | School of Civil Engineering and Architecture, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China |
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| Abstract: | To precisely evaluate the earthquake-resistance properties of hilly rural buildings, a total of 41894 rural buildings in Lueyang County were censored and investigated, in which disaster-inducing factors, disaster-pregnant environment were collected. Based on these economic development levels, structure types of the rural buildings, and earthquake hazard grades in this county were also investigated to predict the earthquake hazards matrix, earthquake hazard index and earthquake-resistance capacity of the rural buildings. The results show there are three types of rural buildings with reference to earthquake-resistance capacity: mud-wood structure, brick-wood structure and brick-concrete structure. For the rural buildings investigated, under earthquake-intensity of VI, VII and VIII, percents of the intact rural buildings, and slightly destroyed buildings and medium-destroyed buildings are 74.04%, 83.45%, 85.46%. And under the earthquake-intensity of VI, VII, VIII, IX and X, the mean hazard index are 0.13, 0.23, 0.32, 0.49 and 0.71, indicating the investigated buildings have a bad performance in earthquake-resistance. And the the investigated buildings do not meet the requirement of the aim of earthquake resistanceof “no damage under minor earthquake, repairable under medium earthquake, no collapsing under major earthquake”. |
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| Keywords: | Rural house Structure types Earthquake hazard grades Earthquake index Earthquake-resistance capacity |
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