多约束条件下高速公路桥梁改扩建总体方案研究  

Design Method and Process of Overall Plan for Highway Bridge Reconstruction and Expansion under Multiple Constraints

作　　者：胡铁山 HU Tieshan(Hubei communications planning and design institute Co.,Ltd.,Wuhan 430051,China)

机构地区：[1]湖北省交通规划设计院股份有限公司,武汉430051

出　　处：《交通科技》2024年第6期56-60,69,共6页Transportation Science & Technology

基　　金：湖北省科技厅联合基金项目(2024AFD411)资助。

摘　　要：随着我国高速公路网络结构日趋完善,建设重点将进一步向高速公路改扩建倾斜,加上既有高速公路施工期要求保通、临近区域控制因素多,使得桥梁改扩建成为高速公路改扩建工程的重点及难点。文中基于规范对桥梁改扩建的要求,拟定多约束条件下桥梁改扩建设计方法及流程,以某有通航、上跨三线高铁需求的高速公路扩建工程为依托,探讨多约束条件下高速公路桥梁改扩建方案,供类似工程参考。With the increasingly perfect network structure of expressways in China,the construction focus will be further tilted towards the reconstruction and expansion of expressways.In addition,the construction period of existing expressways requires smooth operation,and there are many control factors in adjacent areas,making bridge reconstruction and expansion a key and difficult point in the reconstruction and expansion of expressways.Based on the requirements for bridge renovation and expansion in the regulations,the design methods and processes for bridge renovation and expansion under multiple constraint conditions are formulated,and the renovation and expansion plans for highway bridges under multiple constraint conditions are explored through the expansion project of a highway with navigation and overpass triline high-speed rail,providing reference for similar projects.

关 键 词：高速公路 改扩建 桥梁工程 桥梁拓宽 多约束 

分 类 号：U445.6[建筑科学—桥梁与隧道工程] U442.1[交通运输工程—道路与铁道工程]