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薄壁箱形梁剪力滞计算的梁段有限元法
引用本文:罗旗帜.薄壁箱形梁剪力滞计算的梁段有限元法[J].湖南大学学报(自然科学版),1991,18(2):33-38,55.
作者姓名:罗旗帜
作者单位:湖南大学土木工程系
摘    要:

关 键 词:箱形梁  薄壁  剪力滞  有限元法  

Calculation of the Shear Lag in Thin Walled Box Girders by the Finite Segment Method
Luo Qizhi.Calculation of the Shear Lag in Thin Walled Box Girders by the Finite Segment Method[J].Journal of Hunan University(Naturnal Science),1991,18(2):33-38,55.
Authors:Luo Qizhi
Institution:Department of Civil Engineering
Abstract:The homogeneous solution of the differential equation for the shear lag in thin walled box girders is taken as the displacement pattern of finite element. Based on the variational principle, a finite segment method is proposed for analysing the shear lag in box girders. This method is simple and practical, and can be applied to box girders with varying depths. The results calculated by this method are compared with the experimental results as well as with those obtained by the finite strip method, and good agreements are found.
Keywords:box beam  finite element  variational method/shear lag
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