摘要
为了使反应谱法分析大跨度空间双层网壳结构具有较高的精度,通过对该结构用反应谱法和时程分析法进行全面分析,找出反应谱法和时程分析法结果之间的差异,将回归理论引入其结果分析中,对如何得出修正系数以修正反应谱法得出的结果进行研究,从而提出一种修正反应谱的方法.通过实例分析可以看出,用这种方法得出的抗震分析结果具有较高的精度,说明此修正反应谱法适合于该结构形式的抗震分析,为该形式结构的工程抗震设计提供理论依据和指导.
In order to analyze the double lay long span space reticulate shells with high precise,the comprehensive analysis was carried out by the response spectrum method and the time history response method.The difference of analysis by the two methods was put forward,and then by means of regress method,the modified coefficients which used to correct the analysis result of the response spectrum method were studied.So the practical modified response spectrum method was put forward with the modified coefficient.The error caused by the response spectrum method is decreased.The method is not only simple but also high precise through the example.The calculation shows that the method is efficient and precise in the seismic response analysis of the complicate structures,such as double lay long span space reticulate shells.It provides the theoretical basis and guidance with convenience.
出处
《工程设计学报》
CSCD
北大核心
2010年第5期365-371,共7页
Chinese Journal of Engineering Design
基金
国家自然科学基金资助项目(50108003)
上海市自然科学基金资助项目(08ZR1408700)
上海市教育委员会科研创新项目资助(09YZ348)
关键词
大跨空间双层网壳结构
时程分析法
反应谱法
回归理论
修正系数
double lay long span space reticulate shells
time history response method
response spectrum method
regress method
modified coefficient
