大跨空间网壳结构的抗震性能及分析
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摘要
首先采用反应谱法和时程分析两种方法对大跨度空间网壳结构进行了全面分析,了解该形式结构的工程抗震受力性能。然后对两种方法的分析结果进行了对比,考查了结构杆件内力的变化,进而得出了内力差异随结构跨度、矢跨比和周期等的变化关系,找出了采用球反应谱法分析得出的结构响应偏于危险的杆件,从而为网壳结构的抗震设计提出了改进建议。
The comprehensive analysis of long span space reticulate shells was carried out through the response spectrum method and the time history response method.Then,the results got from the two methods were compared,the differences of internal force in elements were checked and the variation of the differences of internal force with structure span,the ratio of height and span and period were presented.The dangerous elements which are got by the response spectrum method are found to give some suggestion in the improvement to seismic design of reticulate shells.
The comprehensive analysis of long span space reticulate shells was carried out through the response spectrum method and the time history response method.Then,the results got from the two methods were compared,the differences of internal force in elements were checked and the variation of the differences of internal force with structure span,the ratio of height and span and period were presented.The dangerous elements which are got by the response spectrum method are found to give some suggestion in the improvement to seismic design of reticulate shells.
引文
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[6]孙建梅.大跨空间网壳结构抗震性能和分析方法的研究[D],上海:同济大学2,007.
[2]廖松涛.工程场地地震动相干函数数值分析[D].上海:同济大学,2001.
[3]韩庆华,刘锡良.大矢跨比开孔单层球面网壳结构的抗震分析与设计.空间结构,2001,97(3)
[4]孙建梅.多点输入下大跨空间结构抗震性能和分析方法的研究[D].南京.东南大学,2005.
[5]网壳结构技术规程(JGJ61-2003)[S].北京:中国建筑工业出版社,2003.
[6]孙建梅.大跨空间网壳结构抗震性能和分析方法的研究[D],上海:同济大学2,007.
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