装配式预应力砼箱梁荷载分析  

Load Analysis of Prefabricated Prestressed Concrete Box Girder

作　　者：周勇 Zhou Yong(Hunan Provincial Transportation Science Research Institute Co.,Ltd.,Changsha,China)

机构地区：[1]湖南省交通科学研究院有限公司,湖南长沙

出　　处：《科学技术创新》2023年第10期151-154,共4页Scientific and Technological Innovation

摘　　要：装配式钢筋混凝土箱梁桥,各个主梁结构之间的横向联结系直接承担上部荷载。由于外部环境、车辆荷载及桥梁自重的耦合作用下,直接对桥面系的承载产生影响,桥面系统主要是将上部荷载传递至主梁及下部结构,起到传递和分散荷载的作用和效果。桥梁结构承载能力必须通过荷载试验最终确定,本研究对装配式预应力混凝土箱梁结构进行荷载试验,并获取相应的控制截面应变值,通过仿真模拟方法得到不同工况下的受力情况,以研究桥梁结构层的受力情况。For prefabricated reinforced concrete box girder bridge,the transverse connection system between main girder structures bears the upper load directly.Due to the coupling effect of external environment,vehicle load,and bridge self weight,it directly affects the bearing capacity of the bridge deck system.The bridge deck system mainly transfers the upper load to the main beam and lower structure,playing a role in transmitting and dispersing the load.The bearing capacity of bridge structures must be finally determined through load tests.This research conducts load tests on prefabricated prestressed concrete box girder structures and obtains corresponding control section strain values.Through simulation methods,the stress conditions under different working conditions are obtained to study the stress conditions of bridge structural layers.

关 键 词：装配式箱梁 整体层 检测分析 结构影响 

分 类 号：U446[建筑科学—桥梁与隧道工程]