钢桁架-钢筋混凝土管柱结构风参数试验研究  

Experimental Study on Wind Parameter of a Steel Truss-Reinforced Concrete Column Structure

作　　者：姚泽良[1] 党发宁[1] 白国良[2] 李晓文[2] 

机构地区：[1]西安理工大学水利水电学院,陕西西安710048 [2]西安建筑科技大学土木工程学院,陕西西安710055

出　　处：《灾害学》2010年第B10期165-169,180,共6页Journal of Catastrophology

基　　金：国家自然科学基金项目资助(50778150);陕西"13115"科技创新重大项目资助(2007ZDKG39)

摘　　要：结构下部空旷,上部挡风墙承担的风荷载对结构下部产生较大作用。我国规范没有对该类结构及其顶部透气性A型架的风参数作具体规定。为解决工程设计中风参数取值问题,进行了刚性模型风洞试验研究,得到了不同工况下挡风墙、A型架、管柱的体型系数及挡风墙的阵风系数,分析了风机、周围建筑物、风向角对相关风参数的影响,给出了相关参数的建议值。并将试验结果与数值模拟计算结果进行了对比分析,结果表明,二者吻合较好,研究结果为工程设计提供了基础资料,可供同类工程参考。The structural lower part is empty,and the wind load in the wind-break wall has a great effect on its lower part.The current load code in China is not clearly stipulated the wind parameters on this structure and its top permeable A-type structure.To solve the problems of wind parameter value in design,an experimental investigation of the structure using a rigid model was done.The shape factors on wind-break wall,A-type structure and columns,and the gust wind factor on wind-break wall under different conditions were obtained.The effects of fans,surrounding structure and wind direction angle on the relevant wind parameters were analyzed.The recommended value of relevant parameters was given.The wind tunnel test data were compared with the results of numerical simulation calculation.Results show that they agree well with each other.The results provide a new basis for the structural design,which may be of referential value to similar projects.

关 键 词：钢桁架-钢筋混凝土管柱结构 挡风墙 模型试验 体型系数 阵风系数 

分 类 号：TU311[建筑科学—结构工程]