| 竹质框架模型受侧向冲击测试及分析简 |
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| 引用本文： | 郭金龙,陈庆军,郑锦洪,刘达鑫.竹质框架模型受侧向冲击测试及分析简[J].力学与实践,2014,36(1):69-75. |
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| 作者姓名： | 郭金龙 陈庆军 郑锦洪 刘达鑫 |
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| 作者单位： | 1.华南理工大学土木与交通学院, 广州510641;2.亚热带建筑科学国家重点实验室, 广州510641;3.澳大利亚新南威尔斯大学土木与环境学院CIES 研究中心, 悉尼NSW2052 |
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| 基金项目： | 华南理工大学亚热带建筑科学国家重点实验室自主研究课题项目（2013ZC19）；国家留学基金资助项目. |
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| 摘 要： | 针对第六届全国大学生结构设计竞赛命题要求设计一个四层缩尺竹质吊脚楼框架，测试其在侧向冲击载荷作用下的加速度响应. 采用有限元软件LS-DYNA，对模型进行模拟分析. 结果表明，有限元计算与加载测试所得的加速度时程曲线吻合较好. 以该模型为基础进行参数分析，结果表明随拉带初始松弛量增大、撞击板质量减小，结构加速度响应增大；相较入射球质量，入射球速度对结构峰值加速度的影响更敏感，随入射球速度增大，结构峰值加速度增大.
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| 收稿时间： | 2013-07-29 |
EXPERIMENT AND ANALYSIS OF A BAMBOO FRAME MODEL UNDER LATERAL IMPACT LOAD |
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| GUO Jinlong,CHEN Qingjun,ZHENG Jinhong,LIU Daxin.EXPERIMENT AND ANALYSIS OF A BAMBOO FRAME MODEL UNDER LATERAL IMPACT LOAD[J].Mechanics and Engineering,2014,36(1):69-75. |
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| Authors: | GUO Jinlong CHEN Qingjun ZHENG Jinhong LIU Daxin |
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| Institution: | 1.School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China;2.State Key Laboratory of Subtropical Building Science, Guangzhou 510641, China;3.Centre for Infrastructure Engineering and Safety, School of Civil and Environmental Engineering, the University of New South Wales, Sydney, NSW 2052, Australia |
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| Abstract: | According to the requirement proposed by the Sixth National Structure Design Contest for college students (NSDCCS), a four-storey bamboo frame model raised floor house is built and experimented under a lateral impact load. The acceleration response is measured.and the FEA software LS-DYNA is used to carry out the finite element analysis to investigate the dynamic mechanism of the frame. The numerical simulation results are in a good agreement with the experimental acceleration time history curves. Furthermore, a parametric analysis is conducted to study the peak of the acceleration. The results indicate that the models with a higher initial relaxation offset of the tension rods or with a lighter contact plate will increase the acceleration of the frame. With regards to the mass of the impact ball, the velocity affects the peak of the acceleration more sensitively, and the peak acceleration increases with the increase of the ball velocity. |
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| Keywords: | bamboo frame|lateral impact|peak acceleration |
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