新型U型梁与普通组合梁受弯性能对比

摘要

通过ABAQUS仿真模拟归纳对比了新型外包钢-混凝土组合U型梁、工字型钢组合梁以及型钢混凝土组合梁受弯性能,指出了不同类型组合梁之间抗弯承载力的差异,讨论了混凝土强度、钢材屈服强度以及钢板厚度等参数对组合梁受弯性能的影响,提出了不同强度等级材料搭配时组合梁类型选取方法.在此基础上,得出U型梁的优越性以及三种组合梁的使用条件以及合理控制各参数来达到经济适用的目的.%This paper compares the bending performance of U-type steel-encased concrete composite beam,H-shaped steel beam and steel reinforced concrete composite beam through ABAQUS,points out the difference of bending bearing capacity among three kinds of composite beam,discusses the influence of concrete strength,steel yield strength and thickness of steel plate on the bending performance of composite beam and puts forward methods of matching of materials of different grades.On the basis of these,we can obtain the using of condition of three kinds of composite beam and control parameters reasonably to achieve the purposes of economics and fitness.