海口市民游客中心屋盖结构风荷载设计研究

Wind load influence design of Citizen and Visitor Center in Haikou

海口市民游客中心结构下部采用混凝土框架-剪力墙结构,上部采用木结构屋面。支承木结构的钢斜支承通过抗震球铰支座放置在下部混凝土框架柱上。木结构屋面由高、中、低三个独立的部分组成,屋盖总面积约1. 2万m2,为国内单体建筑木屋面面积之最。由于项目所处地理位置特殊,建筑体型复杂,屋盖的风致动力效应显著,在设计过程中,进行了风洞试验研究建筑的风荷载效应和风压分布,使用试验所得数据在SAP2000软件中对结构进行了计算及分析,完成了风荷载作用下的结构设计,确保了结构的稳定性。研究及设计结果表明:通过合理的试验分析及数据整理,得到的风荷载参数是真实可靠的,能够在结构计算中反映风荷载对结构的作用,对复杂建筑结构风荷载影响有参考及借鉴价值。

Frame-shear wall structure is adopted for the Citizen and Visitor Center in Haikou City. Above the concrete substructure,a wooden roof is supported by the steel braces which are based on the columns of frame-shear wall structure through the anti-seismic ball connection. The area of the wooden roof is about 12,000m2,which consists of 3 independent parts. By far it is the largest wooden roof domestically. Because of the special geographic location,complex building shape and remarkable wind-induced dynamic effect of the roof,the wind tunnel test method was used to simulate the wind load in the design process. The wind load parameters obtained were calculated and analyzed in SAP2000,which completed the structure design under wind load. The research and design results show that the wind load parameters obtained by wind tunnel test are reliable and can reflect the effect of wind load on structure in structural analysis,being a valuable reference for wind load influence of complex building structures.