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横隔板间距对悬挑箱梁畸变的影响
引用本文:李育楷,王全凤.横隔板间距对悬挑箱梁畸变的影响[J].华侨大学学报(自然科学版),2002,23(4):371-377.
作者姓名:李育楷  王全凤
作者单位:华侨大学土木工程系,泉州,362011
摘    要:研究横隔板间距对悬挑箱梁畸变的影响。通过设置不同数量横隔板的悬挑箱梁在均布扭矩作用下,比较畸变效应和刚性扭转效应,得到最大畸变效应随横隔板密度的变化曲线。当横隔板间距d与截面最大尺寸b的比值大于0.5357时,闭口截面杆件的约束扭转分析应考虑畸变的影响,尤其对于高层核心筒结构。

关 键 词:横隔板间距  悬挑箱梁  刚性扭转效应  截面畸变  畸变效应  薄壁杆件理论
文章编号:1000-5013(2002)04-0371-07
修稿时间:2002年7月9日

Influence of the Spacing of Diaphragn Plates on the Distortion of Cantilever Box Girder
Li Yukai,Wang Quanfeng.Influence of the Spacing of Diaphragn Plates on the Distortion of Cantilever Box Girder[J].Journal of Huaqiao University(Natural Science),2002,23(4):371-377.
Authors:Li Yukai  Wang Quanfeng
Abstract:The influence of the spacing of diaphragm plates on the distortion of cantilever box giredr is studied. By comparing distortion effect and rigid torsion effect of cantilever box girders installing with diaphragm plates in different number under the action of torque evenly spread, the authors obtain a curve showing that maximal distortion changes with diaphraqm density. Thus a suggestion can be advanced as follows: when the ratio of diaphragm spacing d to the maximal dimension of cross section b is greater than 0.535 7, the effect of distortion has to be considered in analysing restraining torsion of the member with closed cross section. This is a suggestion of guiding significance to the practical engcneering, esp, high rise core tube structure.
Keywords:diaphragm plate  box girder  distortion  torsion
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