环氧树脂粘结剂在节段预制拼装桥梁中的应用  

Application of Epoxy Resin Binder in Segmental Prefabrication and Assembly of Bridge

作　　者：吴世曾 张文锋 杨靖 陈兴波 Wu Shizeng;Zhang Wenfeng;Yang Jing;Chen Xingbo

机构地区：[1]重庆市市政设计研究院

出　　处：《城市道桥与防洪》2019年第11期168-171,m0018,共5页Urban Roads Bridges & Flood Control

基　　金：重庆市建设科技计划项目(城科字2014第5-1号)

摘　　要：桥梁节段预制拼裝技术是未来桥梁建设的主要发展方向,而节段箱梁接缝的填缝材料对节段箱梁的承载能力以及耐久性都起着非常重要的作用。结合重庆市华岩隧道西延伸段项目,介绍了环氧树脂粘结剂在节段箱梁拼接中的作用、性能以及参数要求,并建立了环氧树脂胶结缝的有限元模型,详细分析了胶结缝在成桥荷载作用下的应力状态,对节段预制拼装梁的设计和研究提供了一定的参考。The bridge segmental prefabrication and assembly technology is the main development direction of bridge construction in the future.The jointing material of segmental box girder seams plays the very important role in the bearing capacity and durability of segmental box girder.Combined with Chongqing Huayan Tunnel West Extension Project,this paper introduces the role,performance and parameter requirement of epoxy resin binder in the assembly and connection of segmental box girder,establishes the finite element model of epoxy resin bonded seams,and analyzes the stress state of bonded seam under the bridge load in detail,which can provide some reference for the design and study of segmental prefabricated assembled bridges.

关 键 词：节段箱梁 体外预应力 环氧树脂粘结剂 有限元分析 

分 类 号：U444[建筑科学—桥梁与隧道工程]