旧钢筋混凝土连续梁桥裂缝分析及加固设计

Crack Analysis and Reinforcement Design of the Old Continuous Reinforcement Concrete Bridge

裂缝是反映桥梁结构病害的主要表现形式。本文对沈阳市黄河立交桥梁体出现的裂缝进行了描述与分析。针对黄河立交桥承载能力不足和刚度不足的现状,对粘贴钢板加固、有粘结预应力加固、挂设钢筋网及锚喷混凝土加固等三种加固方法进行了方案比选,最终选择了挂设钢筋网及锚喷混凝土加固方法。

Cracks is the main expressional forms of diseases of bridge structure.The article describes and analyses the cracks of Yellow River Crossroads Bridge in Shenyang.Aiming at the lack of the bearing capacity and rigidity of the bridge,three projects including pasting steel plate reinforcement,spouting concrete reinforcement,felting prestressed reinforcement are compared,and spouting concrete reinforcement finally is chosen.