【摘要】 介绍了近几次破坏性地震中钢筋混凝土桥墩的典型震害,总结了国内外利用FRP材料、钢套管、狗骨式杆等新型建筑材料对发生弯曲破坏、剪切破坏、纵筋搭接破坏以及空心截面桥墩的震后修复技术。研究表明,采用合适的修复方案,可以对地震损坏的桥墩进行成功修复,使其承载力和延性得到较好的恢复。文中提到的桥墩震后修复方案可为地震、火灾、爆炸以及腐蚀老化后遭受损坏的钢筋混凝土结构的修复提供参考。更多还原

【Abstract】 The typical failure patterns of the bridge piers in recent earthquakes are summarized in this paper.Then,the state-of-the-art of repair techniques for earthquake damaged bridge piers by using FRP composites,steel jackets and dog bone bars are reviewed.It is concluded that the strength and ductility of the damaged bridge piers can be restored by using proper repair schemes.The repair techniques mentioned in this paper can be used for repair of damaged RC structures due to earthquake,fire,blast or corrosion.更多还原