变宽单箱多室波形钢腹板组合箱梁力学特性研究  

Study on Mechanical Properties of Variedwidth Single Box Multi-cell Girder with Corrugated Steel Webs

作　　者：时正凯[1] 范宇丰 

机构地区：[1]淮安市交通工程质量监督站,江苏淮安223001 [2]东南大学交通学院,江苏南京210096

出　　处：《现代交通技术》2016年第4期24-27,共4页Modern Transportation Technology

基　　金：国家自然科学基金资助项目(项目编号:50078014);江苏省交通运输科研项目(项目编号:2011Y07)

摘　　要：通过有限单元法建立变宽单箱三室波形钢腹板的有限元模型对其力学特性进行分析,并建立了相应规模的等宽波形钢腹板组合箱梁的模型进行对比研究。研究表明:变宽单箱多室波形钢腹板箱梁在整体上的力学性能与等宽组合箱梁相差较小;在变宽单箱多室波形钢腹板组合箱梁中,分配至每块腹板的剪力与等宽组合箱梁相差较大,且随着变宽程度的增加,两者腹板剪力分配的相差越大。In order to further understand the mechanical properties of varied-width single box multi-cell girder with corrugated steel webs, the finite element model of varied-width single box and multi-cell girder with corrugated steel webs was established to analyze its mechanical properties. It also studied the finite element model of the corresponding size equal-width composite box girder. Results showed that the difference of overall mechanical properties between varied-width single box multi-cell girder with corrugated steel webs and equal-width composite box girder was small. Web shear distribution between varied-width single box multi-cell girder with corrugated steel webs and the equal-width composite girder had bigger difference. With the increase of width level of composite girder, the difference of web shear distribution between both two composite girders was greater.

关 键 词：桥梁工程 波形钢腹板 组合箱梁 单箱多室 有限元 

分 类 号：U448-23[建筑科学—桥梁与隧道工程]