大跨度屋盖风振计算的软件实现  

The Software Realization for Analysis of Wind Vibration of Large Roof Structures

作　　者：杨维国[1] 甄伟[1] 那向谦[1] 

机构地区：[1]清华大学土木工程系,北京100084

出　　处：《河北工业大学学报》2005年第2期28-32,共5页Journal of Hebei University of Technology

摘　　要：大跨度屋盖结构的荷载风振系数和风压计算具有庞大的工作量.本文综合考虑水平风和竖向风的作用,应用频域法对屋盖结构风振特性进行了分析,编制了可以与结构有限元计算软件衔接的考虑多阶模态组合的风振风压计算软件.经实例分析验证,大大提高了设计的效率和精度,效果良好.The amount of work of the wind vibration and wind load of large roof structures is very large. Considering the compositive effect of horizontal wind and vertical wind, this paper analyzed the wind vibration of large roof structures with the frequency domain method, and developed the wind load analyzing software which can connect with the finite el- ement software and combine several modes. The effectiveness and precision of the method and software is verified by the analysis of the wind response of the roof of a stadium.

关 键 词：荷载风振系数 竖向风 频域分析 模态组合 

分 类 号：TU311.41[建筑科学—结构工程]