市政桥梁工程中预应力张拉施工的关键技术研究  

Research on the Key Technology of Prestressed Tension Construction in Municipal Bridge Engineering

作　　者：孙伟杰 SUN Wei-jie(Changde City Construction Investment Group Co.Ltd.,Changde 415000,China)

机构地区：[1]常德市城市建设投资集团有限公司,湖南常德415000

出　　处：《工程建设与设计》2020年第21期212-214,共3页Construction & Design for Engineering

摘　　要：在市政桥梁工程建设期间,为了提高桥梁结构的稳定性和运营寿命,往往使用预应力混凝土张拉技术。鉴于此,论文分析了预应力技术的基本原理,并以某市政桥梁为工程依托,从支架和模板安装、钢绞线绑扎、混凝土浇筑养护、预应力张拉等方面对预应力张拉施工的关键技术进行探讨,以期为类似的市政桥梁工程预应力张拉提供一定的理论指导。In order to improve the stability and service life of the bridge structure,prestressed concrete tension technology is often used during the construction of municipal bridge engineering.In view of this,the paper analyzes the basic principle of prestressed technology,and based on a municipal bridge,discusses the key technologies of prestressed tension construction from the aspects of bracket and formwork installation,steel strand binding,concrete pouring and maintenance,prestressed tension,etc.,in order to provide some theoretical guidance for similar municipal bridge projects engineering prestressed tensioning.

关 键 词：市政桥梁 预应力张拉 工程实例 施工技术 

分 类 号：U445.4[建筑科学—桥梁与隧道工程] U448.15[交通运输工程—道路与铁道工程]