楼板刚度和次框架对巨型钢框架结构地震反应的影响
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摘要
以3个巨型钢框架结构为例,假设4个计算方案,输入代表不同场地条件的5条典型地震波,应用有限元分析方法,对不同计算方案的算例进行三维弹性地震时程反应分析。通过对不同计算方案结果的比较分析,研究考虑楼板刚度与否和次框架对巨型钢框架结构反应的影响,为进一步深入研究巨型钢结构的抗震性能及抗震设计提供基础。
Three mega steel-frame structures are selected as examples,four analytical models are hypothesized,and five typical earthquake waves are selected,which represent different site conditions respectively.Using finite element analysis method,three-dimensional elastic history time analysis of three mega steel-frame structures with different analytical models subjected to different earthquake ground motions is conducted.In order to study influence on response of mega steel-frame structures from floor stiffness and hypo-frame,the results of different examples are compared.The conclusions obtained lay foundation for studying the seismic performance and seismic design of mega structures profoundly.
Three mega steel-frame structures are selected as examples,four analytical models are hypothesized,and five typical earthquake waves are selected,which represent different site conditions respectively.Using finite element analysis method,three-dimensional elastic history time analysis of three mega steel-frame structures with different analytical models subjected to different earthquake ground motions is conducted.In order to study influence on response of mega steel-frame structures from floor stiffness and hypo-frame,the results of different examples are compared.The conclusions obtained lay foundation for studying the seismic performance and seismic design of mega structures profoundly.
引文
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[8]蓝宗建,杨东升,王恒华等.巨型框架多功能减振结构体系在地震和强风作用下的振动分析[M].现代地震工程进展,南京:东南大学出版社,2002.
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[2]鞠笑辉.巨型钢框架结构等效模型建立方法及结构分析[D].哈尔滨建筑大学,1996.
[3]刘开国.巨型钢框架结构的二阶分析[J].建筑结构,2001,31(6):7-9.
[4]蔡益燕编译.巨型钢框架弹塑性分析的等效模型[J].建筑结构,1993(1):49-52.
[5]李君,张耀春.超级元在巨型钢框架结构分析中的应用[J].哈尔滨建筑大学学报,1999,32(1):38-42.
[6]周晓峰,董石麟.巨型钢框架结构自振特性分析[J].建筑结构,2001,31(6):3-6.
[7]李君.巨型钢框架结构非线性静、动力分析[D].哈尔滨建筑大学,1999.
[8]蓝宗建,杨东升,王恒华等.巨型框架多功能减振结构体系在地震和强风作用下的振动分析[M].现代地震工程进展,南京:东南大学出版社,2002.
[9]沈祖炎,陈荣毅.巨型结构的应用与发展[J].同济大学学报,2001,29(3),258-262.
[10]刘洁平.楼板刚度及次框架对巨型钢框架结构反应的影响[D].中国地震局工程力学研究所,2003.
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