多梁式工字钢-混凝土组合梁设计要点分析

李泽霖

摘要:

本文以40m跨径的多梁式工字钢-混凝土组合梁为研究对象,利用ANSYS通用有限元软件建立三维数值分析模型。分析焊钉的集束式布置与均布式布置、组合梁的滑移效应及跨间横梁的设置情况等条件对结构横向分布系数、剪力滞效应、桥面板横向弯曲及成桥过程稳定等方面的影响。总结并提出建议,以期为类似结构的设计提供参考。

Abstract:

In this study, taking a 40m long-span multi I-steel and concrete composite beams as an example, a three-dimensional numerical model was carried out using the general finite element analysis software ANSYS. The effects about cluster distribution and uniform distribution of shear studs, interface slipping of steel-concrete composite beams, transverse connection system and other parameters on the transverse distribution coefficient, shear lag, transverse bending of deck and buckling in the process of construction were analyzed. The conclusions and suggestions would be used as a reference for the similar projects in the future.