简支钢-混凝土组合箱梁混凝土桥面板收缩徐变影响因素分析  

Analysis on Factors Influencing Shrinkage and Creep of Concrete Deck of Simply-supported Steel-Concrete Composite Box Girder

作　　者：刘国光 LIU Guoguang

机构地区：[1]上海市政工程设计研究总院(集团)有限公司,上海市200092

出　　处：《城市道桥与防洪》2020年第5期119-123,M0013,M0014,共7页Urban Roads Bridges & Flood Control

摘　　要：结合《公路钢筋混凝土及预应力混凝土桥涵设计规范》(JGT 3362—2018)相关条文,列举了影响混凝土收缩和徐变的各类因素,选取了其中对组合梁设计密切相关的参数,详细分析了其对收缩应变、徐变系数、结构变形以及钢、混凝土各自应力的影响。Combined with the relevant provisions of the Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts(JGT 3362-2018),various factors affecting the shrinkage and creep of concrete are listed.The parameters closely related to the design of composite girders are selected.The effects on the shrinkage strain,creep coefficient,structural deformation and the respective stress of steel and concrete are analyzed in detail.

关 键 词：简支钢-混凝土组合梁 桥面板 收缩 徐变 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]