双幅曲线钢-混凝土组合箱梁极限承载力的有限元分析  

Finite Element Analysis of Ultimate Bearing Capacity of Double Amplitude Curved Steel-concrete Composite Box

作　　者：何宇轩 刘凡[1] HE Yu-xuan;LIU Fan(Suzhou University of Science and Technology,SuzhouJiangsu 215000 China)

机构地区：[1]苏州科技大学,江苏苏州215000

出　　处：《江苏建筑》2022年第2期24-27,共4页Jiangsu Construction

基　　金：江苏省建设系统科技项目(编号:2020ZD08)

摘　　要：文章采用有限元软件Abaqus建立用于模拟双幅曲线钢-混凝土组合箱梁全过程受力情况的有限元模型,通过试验实测结果和Abaqus模拟结果比对,验证有限元模型的可靠性和适用性。在此基础上对不同曲率半径下的极限承载力进行有限元分析,结果表明:曲率半径小于100 m时,曲梁受扭转作用影响明显,极限承载力随曲率半径增加而增加;曲率半径大于100 m时,曲率半径变化对于梁的变形影响很小,极限承载力基本保持不变。In this paper,the finite element model for simulating the whole process stress of double amplitude curve steel-concrete composite box girder is established by using the finite element software ABAQUS.The reliability and applicability of the finite element model are verified by comparing the test results with the ABAQUS simulation results.The results show that when the radius of curvature is less than 100m,the curved beam is obviously affected by torsion,and the ultimate bearing capacity increases with the increase of radius of curvature;When the radius of curvature is greater than 100 m,the change of radius of curvature has little effect on the deformation of the beam,and the ultimate bearing capacity remains basically unchanged.

关 键 词：曲线钢-混凝土组合梁 有限元分析 极限承载力 曲率半径 

分 类 号：TU398.7[建筑科学—结构工程]