(142+61)m不对称跨度混合承式有推力钢管混凝土拱桥设计  

Design of Hybrid Asymmetric Span ( 142+61) Arch Concrete Bridge with Thrust Steel Tube

作　　者：涂杨志[1] TU Yang-zhi(China Railway Siyuan Survey and Design Group Co.,Ltd.,Wuhan 430063,China)

机构地区：[1]中铁第四勘察设计院集团有限公司,武汉430063

出　　处：《铁道标准设计》2018年第6期88-92,共5页Railway Standard Design

摘　　要：本桥首次采用一种混合承式不对称跨度有推力钢管混凝土拱桥,造型美观、结构新颖,充分考虑与环境的协调性。通过介绍该桥的设计及计算,表明对于有推力钢管混凝土拱桥的设计可以通过采用轻型漂浮式桥面系结构、采用自重较大的混凝土框架墩,以及适当设置基础预偏心、增大基础工程量的方法,解决水平推力太大造成的桩基础配筋困难的问题。研究所得结论对解决不对称跨度混合承式有推力拱桥水平推力较大的难题有一定的参考价值,可为今后市政景观桥梁设计提供很好的借鉴。For the first time,a hybrid asymmetric span arch concrete bridge with thrust steel tube is adopted,which is beautiful in shape and novel in structure,and fully considers the coordination with the environment. The design and calculation of the bridge show that the design of the concrete filled steel tubular arch bridge can adopt light floating bridge deck system structure,concrete frame pier with greater self-weight,and appropriate foundation pre-eccentricity and increased foundation quantity to solve the problem of difficult reinforcement caused by greater horizontal thrust. The conclusions provide references for solving the problem of the greater horizontal thrust of this king of bridge and for the design of urban landscape bridges in the future.

关 键 词：钢管混凝土拱 混合承式 有推力拱 不对称拱 设计 

分 类 号：U448.38[建筑科学—桥梁与隧道工程]