双幅曲线连续钢-混组合箱梁剪力滞效应有限元分析  

Finite Element Analysis of Shear Lag Effect of Double-width Continuous Steel-concrete Composite Box Girder

作　　者：顾俊 刘凡[1] GU Jun;LIU Fan(School of Civil Engineering of Suzhou University of Science and Technology,Suzhou Jiangsu 215011 China)

机构地区：[1]苏州科技大学土木工程学院,江苏苏州215011

出　　处：《江苏建筑》2022年第3期24-27,75,共5页Jiangsu Construction

基　　金：江苏省建筑系统科技项目(2020ZD08)。

摘　　要：剪力滞效应是曲线箱梁设计和计算中一个不可忽视的问题。文章通过对两根曲率半径26 m和52 m的双幅曲线连续钢-混组合箱梁进行试验研究,并以有限元软件ABAQUS为平台采用有限元法对两根实验梁进行数值模拟,结合试验数据验证模拟的可行性,并在此基础上设计不同曲率半径的梁,利用有限元分析宽跨比的改变对曲线箱梁的剪力滞效应的影响。The effect of shear lag is a problem that cannot be ignored in the design and calculation of curved box girder.This paper conducts experimental research on two continuous steel-concrete composite box beams with different curvature radii,and uses the finite element software ABAQUS as the platform to use the finite element method to numerically simulate the two experimental beams,and combine the experimental data to verify the feasibility of the simulation.On this basis,an additional beam with a different radius of curvature was designed,and the effect of the change of the width-span ratio on the shear lag effect of the curved box girder was analyzed by finite element analysis.

关 键 词：双幅曲线 试验验证 有限元 组合箱梁 剪力滞 宽跨比 

分 类 号：TU317[建筑科学—结构工程]