The Finite Element Analysis of Shear Lag Effect of Great Steel

The paper is based on the experiment in the model of Hongshan Bridge in Changsha city.By using the method of finite element,the author tries to offer the tentative analysis of the shear lag effect of cantilever box beam on the horizontal force and bend moment.Further study is also made on the regularity of change of stress only on the horizontal force when longitudinal plate?cross plate?crossbeams of cantilever beam change.All of this can be used as reference in design.