| 尼泊尔地震中樟木镇自建框架地震灾变机理研究 |
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| 引用本文： | 程麦理,马静,杨红霞,李盛斌,王磊. 尼泊尔地震中樟木镇自建框架地震灾变机理研究[J]. 地震工程学报, 2018, 40(1): 116-123 |
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| 作者姓名： | 程麦理 马静 杨红霞 李盛斌 王磊 |
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| 作者单位： | 延安大学建筑工程学院;延安大学公共管理学院; |
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| 基金项目： | 国家青年自然科学基金项目（51408453）；陕西省教育厅专项科研项目（17JK0859）；延安大学博士科研启动项目（YDBK2016-08）；延安大学校级科研计划项目（YDY2017-11）；陕西省高水平大学建设专项资金资助项目（2015SXTS03） |
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| 摘 要： | 2015年尼泊尔遭受了4次7级以上大地震灾害,对我国西藏局部地区产生了重大影响。由于我国樟木镇是中尼两国的重要通商口岸,在此区域建造了大量尼泊尔式自建RC框架结构。通过对这些自建框架结构的震害调查,结合其独特的建造方式和结构特点,分析其抗震受灾能力,研究在地震作用下该类框架结构的地震破坏规律和致灾机理。研究结果表明:该类自建框架结构的构件承载能力利用率高,经济效益好,但安全储备小;地震破坏模式主要以框架柱失效和填充墙开裂为主;房屋建造层数对其地震致灾影响较大,该类房屋宜为1~7层;该类建筑结构抗震性能优越,适合在我国低烈度地区推广应用。研究成果对指导我国乡镇自建房屋的抗震规划及建设具有重要意义。
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| 关 键 词： | 自建RC框架 结构特点 混合承重体系 震害调查 震灾机理 |
| 收稿时间： | 2016-11-30 |
Seismic Disaster Mechanism of Owner-built Frame Structures in Zhangmu Town During Nepal Earthquakes |
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| CHENG Maili,MA Jing,YANG Hongxi,LI Shengbin and WANG Lei. Seismic Disaster Mechanism of Owner-built Frame Structures in Zhangmu Town During Nepal Earthquakes[J]. China Earthguake Engineering Journal, 2018, 40(1): 116-123 |
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| Authors: | CHENG Maili MA Jing YANG Hongxi LI Shengbin WANG Lei |
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| Affiliation: | School of Architecture and Civil Engineering, Yan''an University, Yan''an 716000, Shaanxi, China,School of Public Administration, Yan''an University, Yan''an 716000, Shaanxi, China,School of Architecture and Civil Engineering, Yan''an University, Yan''an 716000, Shaanxi, China,School of Architecture and Civil Engineering, Yan''an University, Yan''an 716000, Shaanxi, China and School of Architecture and Civil Engineering, Yan''an University, Yan''an 716000, Shaanxi, China |
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| Abstract: | In 2015, Nepal suffered four M>7 earthquakes that had a considerable impact on parts of Tibet, China. Since the town of Zhangmu is an important trading port for China and Nepal, a large number of Nepal-type self-built RC frame structures are built in this region. By investigating earthquake damaged frame structures, in combination with their special construction methods and structural characteristics, the earthquake resistant capacity of these structures was analyzed. Moreover, the seismic damage law and disaster mechanism of the frame structures under the effect of earthquakes was investigated. The results showed that, in addition to being economical, the owner-built frame structures have a high utilization ratio of component carrying capacity. However, their safety reserve is low. The seismic failure mode of this type of structure is mainly due to the failure of frame columns and the cracking of filling walls. The destruction of the roof is mainly caused by secondary geological disasters, such as the falling of mountain rocks, which is caused by earthquakes. Therefore, the location of a house should take full account of the influence of geological disasters to the construction site. The number of floors is immensely influential with regard to earthquake damages suffered by this type of structure; thus, a suitable number of floors is 1~7. The seismic performance of such structures is superior; therefore, it is suitable for widespread application, including application to low intensity areas in China. The results of this study can be used as a guide for earthquake resistant planning and construction of owner-built houses in Chinese villages and towns. |
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| Keywords: | owner-built RC frame structural characteristic mixed load-bearing system investigation of seismic disaster earthquake disaster mechanism |
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