格构式塔架风载体型系数的风洞试验研究  

Investigation on Wind Load Shape Coefficient of Lattice Towers by Wind Tunnel Tests

作　　者：邹良浩[1] 梁枢果[1] 邹垚[1] 熊铁华[1] 

机构地区：[1]武汉大学土木建筑工程学院,430072

出　　处：《特种结构》2008年第5期41-43,68,共4页Special Structures

基　　金：国家自然科学基金资助项目(50278073)

摘　　要：利用高频测力天平风洞试验分别得到了三种典型的格构式塔架的基底弯矩、基底剪力时程,在此基础上提出了格构式塔架的风载体型系数取值方法,进而计算出上述格构式塔架在不同工况下的风载体型系数。通过将风洞试验得到的结果与荷载规范的值进行对照,得到了一些有用的结论。The base moment and base shear force time series of three typical lattice towers are obtained based on base balance technique in a boundary layer wind tunnel. On the basis of this work, the method to calculate wind load shape coefficients of lattice towers is proposed, and the wind load shape coefficients of above mentioned lattice towers are evaluated at various conditions. At last, throught comparing the results obtained from wind tunnel tests with those from load code of China and US, some useful conclusions are obtained.

关 键 词：荷载规范 格构式塔架 风洞试验 风载体型系数 

分 类 号：TU347[建筑科学—结构工程] TU317