摘要
随着新材料、新技术的发展,桥梁结构加固的方式越来越多样化。以某预应力连续箱梁桥为工程背景,采用了箱内张拉体外预应力索和箱外粘贴碳纤维布等加固方式进行加固。通过桥梁荷载试验和长期监控进行检查分析,得出该加固方式能有效提高桥梁的承载能力、整体刚度和抗裂性能。
With the development of new materials and technology, the way of bridge structure reinforcement is becoming more and more diversified. Based on a prestressed continuous box girder bridge, the tensioning external prestressed cable and pasting CFRP were used for the bridge reinforcement. Through the bridge load test and the long-term monitoring,it is concluded that the method can effectively improve the bearing capacity,the overall stiffness and the crack resistance of the bridge.
出处
《施工技术》
CAS
北大核心
2017年第5期70-72,共3页
Construction Technology
基金
国家自然科学基金资助项目(50978058)
全国优秀博士学位论文作者专项资金资助项目(200954)
广东省自然科学基金资助项目(S2011010005037)
关键词
桥梁工程
箱梁桥
体外预应力
加固
承载力
荷载试验
bridges
box girder bridges
external prestressing
reinforcement
bearing capacity
load testing
