高层建筑风荷载计算中的基本振型表达式分析  

Analysis of Fundamental Mode Shape Expressions of Tall Buildings for Evaluating Wind Loads

作　　者：梁枢果[1] 李辉民[1] 瞿伟廉[2] 

机构地区：[1]武汉大学土木建筑学院,湖北武汉430072 [2]武汉理工大学土木建筑学院,湖北武汉430070

出　　处：《同济大学学报（自然科学版）》2002年第5期578-582,共5页Journal of Tongji University:Natural Science

摘　　要：通过对大量实测和计算数据的分析和拟合 ,得出了合理的高层建筑平动和扭转基本振型解析函数曲线 ,可为补充和修改我国高层建筑设计规范风荷载条文中的振型表达式提供参考 .同时 ,实例分析表明 ,在高层建筑的初步设计阶段 ,上述振型曲线在风荷载计算中的应用 。In this paper,the reasonable transnational and torsional fundamental mode shape functions of tall buildings are obtained by analyzing and fitting extensive date from full scale measurements and calculations.The proposed function curves are useful references for revision and complement of the mode shape expression in the wind load items of the national building code.Meanwhile,case study shows application of the proposed mode shape function in wind load evaluation can raise calculation precision obviously at preliminary design stage of tall buildings.

关 键 词：高层建筑 风荷载 计算 基本振型 表达式分析 

分 类 号：TU973.213[建筑科学—结构工程]