公路工程整幅双柱式桥梁不对称架梁数值研究  

Numerical Research on Asymmetric Beam Erection of Full-span Double-column Bridge in Highway Engineering

作　　者：袁旭锋 YUAN Xufeng(Gansu Road&Bridge Construction Group Co.,Ltd.,Lanzhou 730000,Gansu,China)

机构地区：[1]甘肃路桥建设集团有限公司,甘肃兰州730000

出　　处：《工程技术研究》2024年第15期22-24,共3页Engineering and Technological Research

摘　　要：为减少跨河布置公路桥梁的阻水面积,部分公路桥梁结合防洪评价要求,设计整幅双柱式墩,来减少桥墩数量。为研究高速公路整幅双柱式墩架梁顺序对其结构受力的影响,文章以甘肃省庆阳地区某高速公路涉河桥梁工程为例,通过MIDAS软件按照原设计方案进行建模,分析了不同梁板安装顺序对下部结构受力及变形的影响,找出两种荷载工况下混凝土截面最大拉、压应力值,可为相关工程中的梁板安装施工提供参考。In order to reduce the water-blocking area of highway bridges across rivers,some highway bridges are designed with full-span double-column piers to reduce the number of piers according to the requirements of fl ood control evaluation.In order to study the influence of the full-span double-column pier beam erection sequence on the structural stress of the expressway,this paper takes the river-related bridge engineering on an expressway in Qingyang of Gansu Province as an example.The MIDAS software is used for model according to the original design scheme,and the influence of different beam plate installation sequences on the stress and deformation of the substructure is analyzed.Finding the maximum tensile and compressive stress values of the concrete section under two load conditions can provide reference for the installation construction of beam plate in related engineering.

关 键 词：整幅双柱式桥梁 架梁施工 数值分析 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]