大跨径连续刚构桥悬臂浇筑施工稳定性分析  

Stability Analysis of Cantilever Pouring Construction of Large-span Continuous Rigid Frame Bridge

作　　者：刘佳明 LIU Jiaming(Wuhan Branch of China Highway Engineering Consulting Corporation,Wuhan 430000,Hubei,China)

机构地区：[1]中国公路工程咨询集团有限公司武汉分公司,湖北武汉430000

出　　处：《工程技术研究》2024年第23期5-7,共3页Engineering and Technological Research

摘　　要：为保证连续刚构桥施工安全,文章以某高速公路的大跨径连续刚构桥为研究对象,分析了刚构桥悬臂浇筑施工方法及要点,并利用Midas Civil 2023软件构建桥梁模型,计算出桥梁结构在最大悬臂状态、成桥状态下的失稳系数。同时,分析了挂篮在不同模态、不同风力等级下的失稳系数,研究成果可为类似桥梁工程施工提供借鉴。In order to ensure the construction safety of continuous rigid frame bridge,this paper takes a largespan continuous rigid frame bridge of an expressway as the research object,analyzes the cantilever pouring construction method and key points of rigid frame bridge,and uses Midas Civil 2023 software to construct the bridge model to calculate the instability coefficient of bridge structure in the maximum cantilever state and the completed bridge state.At the same time,the instability coefficient of the hanging basket under different modes and different wind scales is analyzed.The research results can provide reference for similar bridge engineering construction.

关 键 词：连续刚构桥 悬臂浇筑施工 挂篮 失稳系数 

分 类 号：U448.23[建筑科学—桥梁与隧道工程]