余姚国际塑料城会展中心屋面的风荷载研究  

Wind load research of the roof of International Conference & Exhibition Center in Yuyao

作　　者：董明[1] 余梦麟[1] 陈绩明[1] 姚念亮[1] 

机构地区：[1]上海建筑设计研究院有限公司,上海200041

出　　处：《空间结构》2005年第4期50-53,共4页Spatial Structures

基　　金：国家自然科学基金资助项目(50278086)

摘　　要：余姚国际塑料城会展中心位于浙江省余姚市,拥有展览大厅、接待厅和会议中心等多座建筑物.展览大厅的屋面为弧形大跨度拉索焊接箱型钢梁结构,接待厅和会议中心的屋面为工字型钢梁结构.由于大跨度屋面的幅度宽广、形状变化较多,同时又是对风荷载比较敏感的结构,因此风荷载是该项目结构设计时的关键问题之一.本文介绍风洞试验所提供的详细的体型系数分布情况,以及根据此资料进行结构设计时的取值,以保障结构设计安全经济可靠.International Conference ＆. Exhibition Center Located in Yuyao, Zhejiang Province, is composed of an exhibition center, a reception hall and a conference center. The roof of the exhibition center is a cable tensioned box steel shape beam structure, and the roof of the reception hall and the conference center are I shape steel beam structures. Because of the large span and the relative light self-weight, they are sensitive to the wind load. To acquire the exact distribution of wind pressure on the roofs, a wind tunnel experiment was carried out. The detail distribution of wind pressure provided by the wind tunnel experiment was introduced. On the experimental result the wind load used in structural design was also determind to make the design and economic.

关 键 词：风洞试验 体型系数 大跨度层面 箱型钢梁 

分 类 号：TU312.1[建筑科学—结构工程]