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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 this paper, aiming at the related problems in the wind-resistant design of Fangchenggang Art and Culture Center project, this paper comprehensively uses the CFD numerical simulation method, the rigid model pressure test and the dynamic wind-induced vibration calculation and other research methods to deeply analyze the large- The surface wind load provides a detailed numerical basis for the wind load for structural design. That is, during the construction scheme stage, CFD numerical simulation is used to study the wind pressure on the roof, and the average body shape coefficient is taken as the basis for preliminary design. After the construction scheme is determined, the rigid model pressure measurement test is carried out, In the structural design stage, the dynamic wind pressure analysis is used to obtain the equivalent static wind load, which can be used as the basis for structural optimization design. Practice has proved that the system research method can better solve common problems in wind loads of complex long-span buildings and provide some references for wind load research of the same type of buildings.