无粘结预应力钢棒在桥梁施工中的控制  

Control of Unbonded Prestressed Steel Bar in Bridge Construction

作　　者：刘晓辉 Liu Xiaohui(China Railway 20th Bureau Group No.2 Engineering Co.,Ltd.,Beijing 100080,China)

机构地区：[1]中铁二十局集团第二工程有限公司,北京100080

出　　处：《科学技术创新》2022年第8期125-128,共4页Scientific and Technological Innovation

摘　　要：通过预应力混凝土连续梁桥采用无粘结预应力钢棒作为竖向预应力体系在新建包头至银川铁路镇朔湖特大桥的应用,从无粘结预应力钢棒的构造和材料特性、受力计算、施工方法及优点等各方面分析,从安全性、社会和经济效益等多个角度论证无粘结预应力钢棒的应用价值,为类似桥梁施工提供借鉴。To new town lake on baotou to yinchuan railway bridge on vertical prestress of prestressed concrete continuous girder bridge system using unbonded prestressed steel bar as the backing,analysis of the structure of the unbonded prestressed steel bar stress calculation,construction method and material characteristics,and advantages and so on various aspects,from the practical application of unbonded prestressed steel bar in security,social and economic benefits,It provides reference for similar bridge construction.

关 键 词：无粘结预应力钢棒 连续梁桥 施工方法 安全性 经济效益 

分 类 号：U44[建筑科学—桥梁与隧道工程]