某大跨度钢管拱桁架屋盖结构抗震性能分析
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摘要
以某餐饮公司餐饮中心的钢屋盖拱桁架结构为研究对象,首先用设计程序3D3S8.0对结构进行初步的选型与设计,然后用有限元分析软件ANSYS研究其动力特性和抗震性能,得到了该结构的自振频率、振型特点,地震作用下的位移分布、内力等。结果表明:设计出的钢管拱桁架屋盖结构,不论是结构形式、截面类型还是截面尺寸,在地震作用下均具有安全性能高,整体刚度大的特点,符合设计要求。
In this paper,a long span steel arch truss roof structures of dining company dining center is studied.First,a preliminary select and design is made for the structure by 3D3S 8.0.Then the finite element analysis software ANSYS is used to study the dynamic characteristics and seismic performance of the truss.The natural frequencies,modal characteristics,displacement distribution,internal forces and other parameters of the structure under earthquake are obtained.The results show that the steel roof structure designed by software,structure type,cross section and section size all have high safety performance and overall rigidity under earthquake,comply with the design requirements.
In this paper,a long span steel arch truss roof structures of dining company dining center is studied.First,a preliminary select and design is made for the structure by 3D3S 8.0.Then the finite element analysis software ANSYS is used to study the dynamic characteristics and seismic performance of the truss.The natural frequencies,modal characteristics,displacement distribution,internal forces and other parameters of the structure under earthquake are obtained.The results show that the steel roof structure designed by software,structure type,cross section and section size all have high safety performance and overall rigidity under earthquake,comply with the design requirements.
引文
[1]李海旺.空间钢管拱桁架组合结构体系在地震作用下的动力响应研究[C]//第十二届空间结构学术会议论文集.北京:2008.
[2]陈瑞金,郑金床,汤涵.清华大学综合体育中心大跨度拱的结构设计[J].工业建筑,2001,31(12):7-9.
[3]汤华,周定,何紫嫦.广州体育馆屋盖结构设计[J].重庆建筑大学学报,2002,24(2):29-34.
[4]博弈创作室.ANSYS9.0经典产品基础教程与实例详解[M].北京:中国水利水电出版社,2006.
[2]陈瑞金,郑金床,汤涵.清华大学综合体育中心大跨度拱的结构设计[J].工业建筑,2001,31(12):7-9.
[3]汤华,周定,何紫嫦.广州体育馆屋盖结构设计[J].重庆建筑大学学报,2002,24(2):29-34.
[4]博弈创作室.ANSYS9.0经典产品基础教程与实例详解[M].北京:中国水利水电出版社,2006.
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