体育场挑蓬风荷载模拟实验研究  

An Experimental Study of the Wind Loadon the Huge Roof of An Athletic Ground

作　　者：杜向东[1,2] 孟宪忠[1,2] 钮珍南 张伯寅[1,2] 钱基宏 赵基达[1,2] 宋涛 洪涌[1,2] 

机构地区：[1]北京大学湍流研究国家重点实验室 [2]中国建筑科学研究院建筑结构研究所

出　　处：《流体力学实验与测量》1999年第2期58-65,共8页Experiments and Measurements in Fluid Mechanics

摘　　要：能容纳五万多观众的浙江省黄龙体育中心主体育场，在观众席上建有能遮挡风雨的挑蓬，挑蓬之大达座席覆盖率９０％以上，总面积２１０００ｍ２。挑蓬被支撑在外环梁和由斜拉索吊拉的内环梁上。大跨度梁结构受力问题，是建筑结构业一个十分复杂的问题，而杭州地区的地理位置处于我国的台风区，更显出风荷载影响的严重性。因此需对体育场置于大气边界层风洞中进行风荷载模拟实验，以取得合理的挑蓬体型系数，为结构设计的合理性和可靠性提供重要依据。最终可以节省建筑物的造价。A huge roof was designed to be built over the Huanglong Central Athletic Ground,which can contain over 50 thousands of spectators.The roof can cover 90% of the grandstand and its area is as large as 21000m 2.The roof is supported on an external circular beam and suspended through an internal circular beam.The load and strength problem of structure of great span remains a challenging one and the frequent occurrence of taifeng in Hangzhou area gives prominance to the problem of windload on such huge roof. Therefore it necessitates some modeling experiments of the athletic ground model in an atmospheric boundary layer wind tunnel in order to obtain the shape factor coefficient,which is of vital importance for rational and reliable designing and reduction of construction cost.

关 键 词：大气边界层 风洞 风载 实验模拟 体育场挑蓬 

分 类 号：TU245.1[建筑科学—建筑设计及理论]