双塔高层建筑风荷载静力干扰效应的数值研究  

Numerical study on static interference effects of wind loads of double-tower tall building

作　　者：傅小坚 严晓萍 许明辉 

机构地区：[1]绍兴越州建筑设计院有限公司,浙江绍兴312030 [2]绍兴县建筑工程安全质量监督站,浙江绍兴312030

出　　处：《工程建设》2007年第1期1-5,9,共6页Engineering Construction

摘　　要：采用可实现的k-ε湍流模型,对处于B类地貌风场中复杂体型的双塔建筑进行了风荷载和风场的数值模拟,计算得出了建筑周围的流场分布和建筑表面各测点的风压,与风洞试验结果比较表明,数值模拟方法具有较好的精度,可用于复杂体型的双塔建筑的静力干扰研究。着重讨论了双塔建筑物之间的狭缝效应,结果表明,并列布置时,干扰作用只发生在相邻建筑物的侧风面,对相邻建筑物的迎风面影响很小,干扰作用的大小与建筑物的间距有关。By using the realizable k-ε turbulence model,the numerical simulation of wind load and wind field was conducted for double-tower building with complex shape in category B landform wind field, the flow field distribution around the building and the wind pressure at all survey points on building surface were ob- tained through computation. The simulating results were compared with the data obtained from the wind-tunnel experiment, which shows that the numerical simulation method has good accuracy, and it can be used for static interference study of double tower building with complex shape. The interference effects between tall buildings were discussed emphatically, the result showed that the interference effects only work on the crosswind side of building in the case of parallel arrangement. The interference has little effect on windward side between ings,and it has something to do with the space between the adjacent buildbuildings.

关 键 词：数值模拟 双塔高层建筑 静力风荷载 干扰效应 复杂体型 

分 类 号：TU312[建筑科学—结构工程]