济南市历阳湖人行钢桁拱桥设计与施工  

Design and Construction of Steel Truss Arch Footbridge Spanning Liyang Lake in Jinan City

作　　者：付祖良 张强强 FU Zuliang;ZHANG Qiangqiang

机构地区：[1]山东省城建设计院,山东济南250101

出　　处：《城市道桥与防洪》2022年第9期75-77,94,M0009,共5页Urban Roads Bridges & Flood Control

摘　　要：济南市历阳湖人行钢桁拱桥桥位处地形条件复杂,生态环境保护要求较高,施工场地受限。桥型设计通过方案比选后采用钢桁拱桥方案,拱脚水平推力利于现状道路边坡的稳定;施工采用大型起重机先整体吊装钢桁拱下弦拱圈、后吊装拱上杆件及桥面系的施工方法,解决了施工场地受限的问题;通过设置斜撑杆来取代山体侧桥台,避免了对山坡裸露岩体的破坏。特定条件下钢桁拱桥的一些设计与施工措施,可为类似桥梁设计与施工提供一些借鉴与参考。The steel truss arch footbridge spanning Liyang Lake in Jinan City is located in a complex terrain.Its requirements for ecological and environmental protection are high.And its construction site is limited.The bridge type design adopts the steel truss arch bridge scheme after scheme comparison and selection.The horizontal thrust of the arch foot is conducive to the stability of the existing road slope.The construction method is to adopt the large cranes firstly hoisting the steel truss arch lower chord arch ring as a whole,and then hoisting the upper arch members and bridge deck system.The construction method solves the problem of restricted construction site.By installing the diagonal braces to replace the mountain side abutment,the damage to the exposed rock masses of the mountain slope is avoided.Some design and construction measures of steel truss arch bridges under the specific conditions can provide some reference for the design and construction of similar bridges.

关 键 词：钢桁拱桥 无铰拱 竖向自振频率 人行桥 铰支轴向受压杆 

分 类 号：U448.22[建筑科学—桥梁与隧道工程]