（浙江大学空间结构研究中心 杭州  310027）
【提要】 脊谷式索膜结构为类似双坡屋盖的空间曲面造型，具有风敏感性。结合台州大学风雨操场屋盖的风洞试验进行研究，通过分块体型系数和局部风压体型系数分析了该类结构的表面风荷载分布特性，并与相关规范进行比较，得出一些适用于设计的建议。
【关键词】 脊谷式索膜屋盖 风洞试验 分块体型系数 局部风压体型系数
Experimental Investigation on Characteristics of  Wind  Loads on Tilt Membrane Roof/
Zhang Yi， Guan Fuling， Ma Yanhong(Space Structure Center of Zhejiang University, Hangzhou 310027, China)
Abstract:Tilt membrane roof is of curved surface and twopitch  and s
ensitive to wind loads. Based on the wind tunnel investigation of a gym tilt mem
brane roof, the characteristics of wind loads on the roof are discussed through
block cofficient of body conformation and local coefficient of body conformation
. The test results are  compared with the load code, and some suggestion are put
 forward for the related design work.
Keywords:tilt membrane roof；wind load experiment；block coefficient；local coefficient;b
ody conformation