摘要
某预应力混凝土拱式梁桥在交工阶段即出现肋板竖向裂缝,且运营过程中裂缝明显发展。对该桥进行有限元仿真计算分析,研究其箱梁横向受力特性,分析其在车辆荷载及温度梯度作用下的应力分布特征,为同类桥梁的设计和维护提供依据。
As rib vertical crack occurs on certain prestressed concrete arch bridge in the delivery stage,and cracks develop obviously during operation, finite element simulation calculation and analysis weremade on this bridge to investigate the lateral force characteristics of the box girder and its stress distributionunder the action of vehicle load and temperature gradient, which may provide reference for the design andmaintenance of similar bridges.
出处
《公路交通技术》
2018年第1期84-87,共4页
Technology of Highway and Transport
关键词
预应力混凝土拱式梁桥
仿真计算
横向受力
车辆荷载
温度梯度
prestressed concrete arch bridge
simulation calculation
lateral force
vehicle load
temperature gradient
