新型快速装配式张弦桁架人行钢桥结构施工方案设计  

Design of Construction Scheme of New Rapid Prefabricated Truss String Structure of Pedestrian Steel Bridge

作　　者：池沛[1] 戴哲彬[1] 董军[1] 顾忠兴 

机构地区：[1]南京工业大学土木工程学院,江苏南京210009 [2]江阴壮欣钢品有限公司,江苏江阴214433

出　　处：《施工技术》2013年第2期42-44,共3页Construction Technology

基　　金：江苏省"青蓝工程"基金项目--新型高效钢结构体系及其应用研究

摘　　要：为了实现城市人行桥快速装配的目的,提出了新型快速装配式张弦桁架人行钢桥。该体系是由装配式桁架、柔性拉索和撑杆形成的新型自平衡体系,具有自重轻、刚度大、施工方便等优点。基于施工前的模拟仿真计算,得到拉索的初始长度及监测点位移等参数。通过合理的施工顺序和施工监测,同时采用特殊的预应力施加方法,可以高效地完成人行钢桥的施工。To realize rapid assembly of urban pedestrian bridge,a new type of truss string structure is proposed.It is a new kind of self-balanced structure,composed of assembly trusses units,flexible cables and struts,which has the characteristics of light weight,high stiffness and construction convenience,etc.Based on the simulated calculation before construction,parameters,including the initial cable length and the displacement of the monitoring points are obtained.Through the rational sequence and monitoring of construction and a special method of prestressing,the pedestrian steel bridge can be efficiently accomplished.

关 键 词：钢结构 装配式钢桥 张弦桁架 预应力 监测 施工 

分 类 号：TU391.3[建筑科学—结构工程]