摘要
针对钢筋混凝土桥墩常规加固及抗震加固与修复,研究总结了几种国内外传统加固技术及最新加固技术,包括增大截面加固技术、嵌入加固技术、体外预应力加固技术、钢套管加固技术、FRP加固技术、绕丝加固技术及"狗骨式"筋修复纵筋技术等,对不同加固技术的方案原理、材料及适用范围进行了论述比较,不同的加固技术适用于桥墩承载力提高、抗震加固、震后修复等不同的加固需求。
Several traditional reinforcement techniques and the latest ones are researched and summarized for the conventional reinforcement and the seismic reinforcement and the repair in this paper,including increasing cross-section area,near-surface-mounted,external pre-stressing,steel jacket,FRP composites,exterior spiral and longitudinal rebar repaired with dog bone bars.The scheme principle,materials and applicable range of all different reinforcement technique are discussed and compared;the different techniques are applicable to different reinforcement demand for improving the bearing capacity of bridge piers,seismic strengthening and post-earthquake repair.
出处
《施工技术》
CAS
北大核心
2011年第8期60-64,共5页
Construction Technology
基金
江苏省自然科学基金项目(BK2009483)
东南大学混凝土及预应力混凝土结构教育部重点实验室开放课题
关键词
桥梁
钢筋混凝土桥墩
加固
抗震
修复
bridge
RC bridge piers
reinforcement
seismic
repair
