空间螺旋线薄壁箱形梁剪滞分析  

THE SHEAR LAG ANALYSIS OF SPACE HELICAL THIN-WALLED BOX GIRDER

作　　者：竺润祥[1] 吴善幸[1] 宋云[1] 任茶仙[1] 

机构地区：[1]宁波大学土木建筑工程系

出　　处：《宁波大学学报（理工版）》1998年第4期37-41,共5页Journal of Ningbo University：Natural Science and Engineering Edition

摘　　要：应用有限单元法，将空间螺旋线薄壁箱形梁离散为平面壳元的组合，求得直线、平面曲线和空间螺旋线薄壁箱形梁的位移和应力场，讨论其中存在的剪滞效应，并分析曲率半径和空间坡度对剪滞的影响．By use of the finitc element method, the stress yields for stheght plane curved and spase hclical thin-walled box girders when they are separated as an assemblies of the plane shell elements are discussed The shear lag Phenomenon and the effect on shear lag with respect to curvature radus as well as spee slope are also inveshgatcd.

关 键 词：有限单元法 薄壁曲线梁 剪滞 

分 类 号：TU311[建筑科学—结构工程]