市政异形拱桥结构计算要点分析  

Analysis of Key Points in Structural Calculation of Municipal Irregular Arch Bridges

作　　者：吕会龙 董东坡 冯兴 LV Huilong;DONG Dongpo;FENG Xing(Southwest Municipal Engineering Design&Research Institute of China,Sichuan Chengdu 610213,China)

机构地区：[1]中国市政工程西南设计研究总院有限公司,四川成都610213

出　　处：《西南给排水》2024年第5期28-32,共5页Southwest Water & Wastewater

摘　　要：以成都天府新区科智路、兴隆76路、南宁路西段三座跨河桥梁为背景,探讨在市政异形拱桥的设计计算中,除整体结构计算以外的几点需要设计师重点关注的复杂部位的结构安全,对复杂部位进行分类、剖析,选择合适的有限元软件对各部位进行局部计算。通过分享结构计算思路、分析结构计算结果,总结了市政异形桥梁计算需要重点关注的四个部位:主梁正交异性顶板、悬臂结构、吊耳、异形拱圈,以及对四个部位的结构分析,为此类桥梁的设计提供一些参考。Based on the three river crossing bridges on Kezhi Road,Xinglong 76 Road,and the western section of Nanning Road in Chengdu Tianfu New Area,Explore several key structural safety is-sues that designers need to focus on in the design and calculation of municipal irregular arch bridges,in addition to overall structural calculations.The complex parts are classified and analyzed,and appropriate finite element software is selected to perform local calculations on each part.By sharing the structural calculation ideas and analyzing the structural calculation results,four key areas that need to be focused on in the calculation of municipal irregular bridges have been summarized:the orthogonal top plate of the main beam,the cantilever structure,lifting eye,and the irregular arch ring.The structural analysis of these four areas provides some reference for the design of such bridges.

关 键 词：桥梁工程 异形拱桥 局部分析 正交异性板 吊耳 

分 类 号：U44[建筑科学—桥梁与隧道工程]