墩梁固结钢箱梁设计应用研究

Research on design and application of reinforced steal box girder for pier beam

高速公路选线与工程建设中不可避免地需要穿越已有道路或河流,钢箱梁以其跨越能力大、抗弯和抗扭强度大等优点被广泛运用在桥梁建设中,尤其是在曲线桥梁中。在钢箱梁的设计过程中,往往会将钢箱梁与桥墩进行固结,以提高桥梁的抗倾覆性。以实际工程为例,介绍了钢箱梁与其桥墩固结的几种常用形式,并对各种墩梁固结形式在设计和施工过程中需要注意的问题进行了分析。

Highway alignment and construction projects inevitably need to cross the existing roads or rivers,steel box girder is widely used in bridge construction,especially in curved bridges,because of its advantages of large span capacity,bending and torsion strength.In the design process of steel box girder,in order to improve the overturning resistance of the bridge,the steel box girder will often be pier-beam cementation with the abutment.This paper introduces several common forms of steel box girder and pier consolidation with its piers as an example of actual projects,and analyzes the problems that need to be paid attention to in the design and construction process of various pier-beam consolidation forms.