钢管混凝土系杆拱桥预应力技术及结构分析测试研究  

Prestressing Technique,Stress Measurement and Structural Analysis of a Tied Arch Bridge with Concrete-filled Steel Tube

作　　者：刘钊[1] 孟少平[1] 陆文华[2] 刘伯润 

机构地区：[1]东南大学预应力工程研究所,江苏南京210018 [2]南京铁路分局第一工程公司,江苏南京210011

出　　处：《桥梁建设》1999年第3期14-17,共4页Bridge Construction

摘　　要：南京栖霞大桥为一座主跨86.5m的大跨度宽桥面钢管混凝土系杆拱桥。阐述了该桥的预应力施工技术,分析了桥梁在施工各阶段的受力特征,并结合系梁的实测应力,对施工过程中的结构安全性进行了评价。同时还研究了大跨度宽桥面系杆拱桥独特的力学特征。A three-span tied arch bridge with concrete filled steel tube,recently completed in Nanjing,has three-dimensional prestress construction.In order to survey the structural behavior and the safety during the construction,stress measurements of the tied beam and spatial analysis of the structure are carried out.The research includes the prestressing technique,the necessity of step\|by\|step prestressing as the structure expands ,the spatial effects at the ends of arch,prestress contribution to the transverse beams,and the influence of the initial tension of hangers on the bridge structure when completed,etc.

关 键 词：拱桥 系杆拱 钢管混凝土结构 施工 预应力 

分 类 号：U448.225[建筑科学—桥梁与隧道工程] U448.35[交通运输工程—道路与铁道工程]