不同跨数简支变连续箱梁受力分析  

Stress Analysis of Simply-supported to Continuous Box Girders with Different Spans

作　　者：李亚平 LI Yaping(China Railway Fifth Survey and Design Institute Group Co.,Ltd.,Beijing 102600,China)

机构地区：[1]中铁第五勘察设计院集团有限公司,北京102600

出　　处：《工程技术研究》2023年第21期110-112,共3页Engineering and Technological Research

摘　　要：预制装配式结构的建设效率高、工程质量高,在工程建设中被广泛应用。文章以实际工程为背景,运用有限元分析软件建立了3个单片梁的有限元分析模型,对三种不同跨数的简支变连续装配式组合箱梁中梁受力进行了分析。结果发现不同跨数箱梁弯矩相差较大,剪力、挠度相差较小,可为类似工程设计提供参考。Prefabricated structure is widely used in engineering construction because of its high construction efficiency and engineering quality.Based on the actual engineering,this paper establishes the finite element analysis model of three single girders by using the finite element analysis software,and analyzes the stress of 3 simply-supported to continuous prefabricated composite box girders with different spans.The results show that the bending moment of box girders with different spans varies greatly,and the difference of shear force and deflection is small,which can provide reference for similar engineering design.

关 键 词：装配式组合结构 小箱梁 简支变连续 

分 类 号：U441[建筑科学—桥梁与隧道工程]