“321”钢桥体外预应力加固装置设计及检算  

Design and Calculation of External Prestressing Reinforcement Device of "321" Steel Bridge

作　　者：陈浩林 李海超 管晔 刘锡鑫 CHEN Haolin;LI Haichao;GUAN Ye;LIU Xixin(Army Military Transportation University,Tianjin 300161,China)

机构地区：[1]陆军军事交通学院,天津300161

出　　处：《军事交通学报》2022年第12期74-79,共6页Journal of Military Transportation University

摘　　要：为解决“321”钢桥体外预应力施加问题,根据“321”钢桥结构特点、杆件尺寸设计一种适用于“321”钢桥的锚固装置和撑杆,并以三排单层加强型“321”钢桥为研究对象,对最危险工况下锚固装置和撑杆受力情况进行检算。结果表明:设计的锚固装置和撑杆可以满足三排单层加强型“321”钢桥的使用需要。In order to solve the problem of external prestressing application of"321"steel bridge,this paper firstly designs an anchorage device and brace suitable for"321"steel bridge according to the structural characteristics and the bar size of"321"steel bridge.Then,it takes three rows of single-layer reinforced"321"steel bridge as the research object,and checks and calculates the stress of anchorage and brace under the most dangerous working condition.The results show that the designed anchorage and brace can meet the needs of the three rows of single-layer reinforced"321"steel bridge.

关 键 词：“321”钢桥 锚固装置 撑杆 装置设计 体外预应力 

分 类 号：U445.72[建筑科学—桥梁与隧道工程]