钢-混凝土组合梁斜拉桥桥面板纵向抗剪机理研究与构造设计  

Study on Longitudinal Shear Mechanism and Design on Construction of Deck Plate of Steel- concrete Combined Girder Cable- stayed Bridge

作　　者：冉嵬 马振栋 

机构地区：[1]林同棪国际工程咨询(中国)有限公司,重庆市401121

出　　处：《城市道桥与防洪》2015年第10期36-39,12,共4页Urban Roads Bridges & Flood Control

摘　　要：组合梁斜拉桥的混凝土板常出现纵向开裂的问题,通过对纵向剪切破坏的原因分析,研究纵向抗剪机理,以重庆水土嘉陵江大桥为工程实例,在桥面板横向钢筋布置上增设了短钢筋,解决了桥面板纵向抗剪的问题,提出了设计建议。The concrete deck plate of combined girder cable- stayed bridge often has the problems of longitudinal cracks. According to the cause analysis of longitudinal shear damage, the article studies he longitudinal shear mechanism. Taking Chongqing Shuitu Jialing River Bridge as an engineering case, the article introduces the short reinforcing bar to be added at the transverse reinforcement arrangement of bridge deck plate, which solves the longitudinal shear problem of deck plate. The design proposal is put forward.

关 键 词：斜拉桥 组合梁 混凝土板 纵向抗剪 

分 类 号：U443.31[建筑科学—桥梁与隧道工程]