预应力混凝土空心板桥上部结构大变形构件整体预应力化技术研究  

Overall prestressing technology of large deformation members of prestressed concrete hollow slab bridge superstructure

作　　者：王海有 白哲 周海涛 王健 王壹帆 曹金奎 王晓丰 薛秋香 黄建辉 李莉 银晓东 WANG Hai-you;BAI Zhe;ZHOU Hai-tao;WANG Jian;WANG Yi-fan;CAO Jin-kui;WANG Xiao-feng;XUE Qiu-xiang;HUANG Jian-hui;LI Li;YIN Xiao-dong(Center for Pingdingshan Highway Development,Pingdingshan 467000,China;School of Civil&Transportation Engineering,Henan University of Urban Construction,Pingdingshan 467036,China;Henan Zhongya Jiaojian Group Co.,Ltd.,Pingdingshan 467000,China;Center for Pingdingshan Highway Engineering Quality Inspection,Pingdingshan 467000,China;Zhengzhou Avenue Highway Engineering Co.,Ltd.,Zhengzhou 450000,China;Pingdingshan Ruihui Highway Maintenance Engineering Co.,Ltd.,Pingdingshan 467000,China;Pingdingshan Highway Traffic Survey&Design Institute,Pingdingshan 467000,China)

机构地区：[1]平顶山市公路事业发展中心,河南平顶山46700 [2]河南城建学院土木与交通工程学院,河南平顶山467036 [3]河南中亚交建集团有限公司,河南平顶山467000 [4]平顶山市公路工程质量检测中心,河南平顶山467000 [5]郑州市大道公路工程有限公司,河南郑州450000 [6]平顶山市瑞辉公路养护工程有限公司,河南平顶山467000 [7]平顶山市公路交通勘察设计院,河南平顶山467000

出　　处：《河南城建学院学报》2022年第2期14-19,共6页Journal of Henan University of Urban Construction

摘　　要：预应力混凝土空心桥板上部结构大变形构件中的企口缝混凝土和桥面铺装混凝土容易出现早期损坏,导致承载能力下降,严重时造成单板受力,甚至出现安全事故,其根本原因是:预应力混凝土空心桥板具有抵抗较大变形而不损坏的性能,而非预应力的企口缝混凝土和桥面铺装混凝土不具备该性能,但仍需与前者协同工作而产生较大变形,因此发生早期损坏是必然结果。通过企口缝混凝土和桥面铺装混凝土预应力化,使预应力混凝土空心板桥上部结构大变形构件都采用预应力混凝土,都具备产生较大变形而不损坏的性能,能够保证桥梁的使用品质和使用寿命。The tongue-and-groove concrete and bridge deck pavement concrete in the large deformation members of the prestressed concrete hollow bridge deck are prone to early damage,resulting in a decrease in bearing capacity,and in severe cases,the veneer is stressed,and even safety accidents occur.The reason is that the prestressed concrete hollow bridge deck has the performance of resisting large deformation without damage,while the tongue-and-groove concrete and bridge deck concrete are non-prestressed and do not have the performance of offsetting large deformation without damage,but they still need to work with the prestressed concrete hollow bridge plate to produce large deformation,so the occurrence of early damage is an inevitable result.Through the prestressing of the tongue-and-groove concrete and the bridge deck concrete,the large deformation components of the upper structure of the prestressed concrete hollow slab bridge become prestressed concrete,and they all have the performance of large deformation without damage,which can ensure the service quality and service life of the bridge.

关 键 词：预应力混凝土空心板桥 上部结构 大变形构件 企口缝混凝土 

分 类 号：U445[建筑科学—桥梁与隧道工程]