摘要
该文针对防城港文化艺术中心项目在抗风设计中的相关问题,综合运用CFD数值模拟方法、刚性模型测压试验和动态风振计算等研究手段,深入分析了该大型复杂体型大跨建筑屋盖表面的风荷载,为结构设计提供了详尽的风荷载数值依据。即在建筑方案阶段,采用CFD数值模拟对屋盖风压进行初步研究,将得到的平均体型系数作为初步设计的依据;确定建筑方案后进行刚性模型测压试验,得到屋盖分区体型系数以及风压时程;在结构设计阶段,利用动态风压时程,进行动态风振分析获得等效静风荷载,以此作为结构优化设计的依据。实践证明,该系统研究方法能够较好的解决复杂大跨建筑风荷载方面的共性问题,能为同类型建筑物的风荷载研究提供一定的参考。
In the paper, the issues in wind-resistant design of Fangchenggang Culture ＆ Art Center, which has a large span roof with complex bionic shape, were studied in different structural design phases using three research methods, including CFD simulation, rigid model pressure measurement wind tunnel test and dynamic wind-induced vibration analysis. Through the analysis of the wind-induced loads on this large span roof, equivalent static wind loading on the roof surface was given for the main roof structural design. In practice, it is shown that this could be a good approach to solve some common problems in the wind-resistant design for complex large-span buildings. This study will provide a good reference for wind load estimation of the same type of buildings.
出处
《工程力学》
EI
CSCD
北大核心
2011年第8期160-167,共8页
Engineering Mechanics
关键词
风荷载
CFD数值模拟
风洞试验
风振计算
大跨结构
wind loads
CFD numerical simulation
wind tunnel test
wind-induced vibration analysis
large-span structure
