摘要
单肋系杆拱桥具有简约大方、受力合理、适应性强等优点,但其自身结构特点限制了此类桥梁向更大跨径的发展,通过采用混合结构的形式以及增加小边跨的措施对传统单肋系杆拱桥进行改进,并对其关键技术进行研究,改进后的单肋系杆拱桥已成功应用于主跨250m的辽宁省庄河干沟大桥,实现了单肋系杆拱桥跨径的突破,目前该桥运营良好。
Single rib tied arch bridges have many advantages such as simple appearance,reasonable force and strong adaptability,however,the structural characteristics of this type bridge limit its development to a larger span.By adopting hybrid structure and adding small side span,the traditional single rib tied arch bridge was improved,then the key technologies were studied.The improved single rib tied arch bridge has been successfully applied to the Gangou Bridge in Zhuanghe City,Liaoning Province,with a main span of 250m.The construction of this bridge has refreshed the span record of single rib tied arch bridges,and this bridge is in good condition at present.
作者
许斐
XU fei(Design Institute of Civil Engineering & Architecture of Dalian University of Technology Co.,Ltd.,Dalian 116024,China)
出处
《北方交通》
2019年第5期17-21,共5页
Northern Communications
关键词
单肋系杆拱
体系改进
小边跨
混合结构
Single rib tied arch bridges
System improvement
Small side span
Hybrid structure
