| 柱面网壳结构的地震行波反应分析 |
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| 引用本文： | 楼梦麟,田仲业. 柱面网壳结构的地震行波反应分析[J]. 华中科技大学学报(城市科学版), 2011, 28(3) |
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| 作者姓名： | 楼梦麟 田仲业 |
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| 作者单位： | 同济大学土木工程防灾国家重点实验室,上海,200092 |
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| 基金项目： | 科技部国家重点实验室基础研究资助项目(SLDRCE08-A-07) |
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| 摘 要： | 以某电厂干煤棚为例,应用有限元方法,计算了水平向一致激励时与考虑行波效应时大跨度柱面网壳结构的地震反应.然后根据计算结果比较了两种地震输入下的结构动力反应.数值分析表明:不同地震输入条件下的结构地震反应峰值存在较大的差异,且变化规律基本上随行波波速单调变化.进一步研究还表明:当行波波速为某一特定值时,结构的某些反应的变化与单调变化规律并不完全一致,存在行波共振的现象.
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| 关 键 词： | 大跨度柱面网壳 一致输入 行波输入 地震反应 行波共振 |
Seismic Response Analysis of Cylindrical Reticulated Shell Under Traveling Wave Excitation |
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| LOU Meng-lin,TIAN Zhong-ye. Seismic Response Analysis of Cylindrical Reticulated Shell Under Traveling Wave Excitation[J]. Journal of Huazhong University of Science and Technology, 2011, 28(3) |
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| Authors: | LOU Meng-lin TIAN Zhong-ye |
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| Affiliation: | LOU Meng-lin,TIAN Zhong-ye(State Key Laboratory of Disaster Reduction in Civil Engineering,Tongj i University,Shanghai 200092,China) |
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| Abstract: | Taken a dry-coal-shed in a power plant as an examp le,the seismic responses of a long span cylindrical reticulated shell under horiz ontal uniform and traveling wave excitations are analyzed using finite element m ethod.Based on the calculation results,the seismic responses of the structure under the two seismic inputs are compared.The numerical analysis shows that the re are large differences between the peak values of the structure's seismic resp onses under different seismic excitations and basically,the... |
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| Keywords: | long-span cylindrical reticulated shell un iform excitation traveling wave excitation seismic response traveling wave resonance |
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