采用钢板套箍方法加宽桥梁支承垫石的性能分析

Performance Analysis of Using Steel-boned Method Widening Bridge Supporting Padding Stone

以天津市机场高速钢箱梁支承垫石加宽工程为背景,首次提出了一种采用钢板套箍加宽混凝土支承垫石的方法,并对该方法加宽垫石的受力性能进行了有限元模型分析.分析结果表明该方法的可靠性和合理性,并将该方法应用到了实际工程中,总结出了钢板套箍加宽支承垫石的步骤,可供同类桥梁支承垫石加宽参考.

This paper based on widening beating pad stone of Tianjin Airport Expressway steel box girder, presents a method of using steel broadening bearing pad stone, and make analysis of the performance of the meth- od. The results show that the proposed method is reliable and rationality. The proposed method is applied to the actual project, summed up the steel ferrule widened beating pad stone steps.