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张 喆, 曹国峰, 李亚明
(现代设计集团上海建筑设计研究院有限公司,上海200041)[摘要] 本文对上海海事大学体育中心的四个体育馆和一个体育场进行了数值风洞分析,计算出双向曲面网壳屋面各风向下的体型系数,并与我国现有荷载规范中单曲拱形屋面体型系数加以比较,总结出此类形状屋面体型系数的分布规律,并给出了建议值;同时也给出了悬挑单曲屋面的体型系数。由于目前我国荷载规范无相应的体型系数,上述规律和建议值可以为类似工程的设计提供很好的参考。
[关键词] 曲面网壳;体型系数;数值风洞Study on Figuration Coefficients of Curved-reticulated Shells under Wind Load
Zhang Zhe, Cao Guofeng, Li Yaming
( Xian Dai Architectural Design Group,Shanghai Institute of Architectural Design & Research Co. , Ltd., Shanghai 200041, China)Abstract: Numerical wind tunnels were carried out for Shanghai Maritime University's sports center which is including four gymnasiums and one Stadium. The figuration coefficients of double-curved-reticulated shells under every wind direction were obtained. We analyze the difference between figuration coefficient of single-curved roof in China Load Code and the above results. The distributing rules of figuration coefficients of curved-reticulated shells are summed up, and the proposed values are presented. The figuration coefficients of cantilever single-curved surface are also presented. Because there are not corresponding regulations about these shape roofs, the above distributing rules and proposed values are good reference for similar structural design.
Keywords: curved-reticulated shells; figuration coefficient; numerical wind tunnel