【作者】 全涌； 包晗； 杜元增； 邹岳文； 张正维； 刘颖；

【Author】 QUAN Yong;BAO Han;DU Yuanzeng;ZOU Yuewen;ZHANG Zhengwei;LIU Ying;State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University;Beijing Institute of Architectural Design South China Design Center;Poly (Jiangxi) Real Estate Development Co., Ltd.;Jiangsu College of Engineering and Technology;

【机构】 同济大学土木工程防灾减灾全国重点实验室； 北京市建筑设计研究院有限公司华南设计中心； 保利(江西)房地产开发有限公司； 江苏工程职业技术学院；

【摘要】 通过刚性模型同步测压风洞试验对一大型剧院建筑在其立面幕墙外有无外附装饰网两种工况下的立面风压进行了测量,对比分析了这两种工况下立面测点上的平均风压系数、脉动风压系数和最不利正负风压系数,以及外附网架上的最不利风压。试验结果表明:外附装饰网可扰乱分离流的旋涡结构,抑制建筑立面边缘区域的高负压,也可能导致湍流增大,放大背风立面上的脉动风压,但对立面边缘区域的最不利正负风压以及立面内部区域的最不利负风压都起到或强或弱的抑制作用。立面交界角部区域的外附装饰网本身的最不利风压一般会大于立面拐角处幕墙上的最不利风压,但在内部区域一般比对应位置幕墙上的最不利风压小。更多还原

【Abstract】 The wind pressure on the facade of a large theatre building with or without attached decorative mesh is measured through a rigid model wind tunnel test. The mean value, the standard deviationvalue, the most unfavorable positive value and the most unfavorable value of wind pressure coefficient on the representative position of the facades and the attached mesh are compared and analyzed under these two conditions. The test results show that the attached decorative mesh can disturb the vortex structure of the separated flow and then suppress the high negative pressure near the edge of the building facade, and may also lead to the increase of turbulence and amplify the fluctuating wind pressure on leeward facade. The positive and negative most unfavorable wind pressure on the facades are suppressed by the attached decorative mesh. The most unfavorable wind pressures on the attached decorative mesh near the corners of the facade boundary are generally greater than the most unfavorable wind pressures on the facade at the corner.更多还原