| 大跨度飞机库考虑多维地震输入的动力分析 |
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| 引用本文： | 赵均,徐小燕,朱丹,赵伯友.大跨度飞机库考虑多维地震输入的动力分析[J].北京工业大学学报,2010,36(7). |
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| 作者姓名： | 赵均 徐小燕 朱丹 赵伯友 |
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| 作者单位： | 北京工业大学,建筑工程学院,城市与工程安全减灾省部共建教育部重点实验室,北京,100124;中国航空规划建设发展有限公司,北京,100120 |
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| 基金项目： | 北京工业大学人才强教创新团队资助项目，教学技能资助项目 |
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| 摘 要： | 为研究大跨度飞机库结构的地震反应与抗震设计要求,对7度抗震设防、Ⅳ类场地条件下的国内某机库,采用不同地震波,进行了多维地震输入下的动力反应时程分析,考虑地震波沿结构水平单向、双向、三向和竖向输入的不同情况,从结构侧移、柱内力、屋盖结构杆件内力等方面进行了分析.结果表明:在多维地震作用下,地震波沿结构坐标轴正向或反向输入导致结构扭转方向不对称;与单向地震作用相比,多维地震作用可使得柱的一些内力和位移值增加显著;水平和竖向地震分别对屋盖网架和大门桁架起控制作用;三向地震作用下屋盖杆件地震内力总体上显著大于水平或竖向地震单独作用下的地震内力,且地震内力系数较大的杆件数量所占比例大.并分析了屋盖各部位地震内力系数大的杆件的分布情况.据此,建议对这种设计条件的大跨飞机库结构进行三向地震输入的抗震验算.
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| 关 键 词： | 飞机库 大跨度结构 多维地震反应 时程分析 |
Dynamic Response Analysis of a Long-span Hangar Subjected to Multi-dimensional Seismic Motions |
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| ZHAO Jun,XU Xiao-yan,ZHU Dan,ZHAO Bo-you.Dynamic Response Analysis of a Long-span Hangar Subjected to Multi-dimensional Seismic Motions[J].Journal of Beijing Polytechnic University,2010,36(7). |
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| Authors: | ZHAO Jun XU Xiao-yan ZHU Dan ZHAO Bo-you |
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| Affiliation: | ZHAO Jun1,XU Xiao-yan1,ZHU Dan2,ZHAO Bo-you2(1.Key Lab of Urban Security and Disaster Engineering,MOE,College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China,2.China Aviation Planning and Lonstruction Development Co.,Ltd.,Beijing 100120,China) |
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| Abstract: | Time-history response analyses of a long-span hangar based on site-class IV are conducted under different multi-dimensional earthquake inputs for the seismic fortification intensity of 7 to study its seismic response and requirements for seismic design.The lateral displacements of the structure,internal forces of its supporting columns and the members of the roof in the cases of one-,two-and three-dimensional seismic inputs were compared,respectively.The results show that,the dynamic analyses of three-dimen... |
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| Keywords: | hangar long-span structure multi-dimensional seismic response time history analysis |
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