既有建筑后锚固连接补强加固技术

A Reinforcement Technique for Post-installed Fastenings in Existing Buildings

混凝土后锚固连接已广泛应用于结构补强、工程补救等领域。但从有关研究及实践情况来看,后锚固连接的可靠度相对于主体结构或预埋连接要低,局部失效概率较大。结合某具体工程,本文论述了一种用于后锚固连接的补强加固技术。实践表明:经补强加固后锚固连接节点的工作性能优良、可靠,可为今后类似工程提供参考。

Post-installed fastenings in concrete structures have been widely used in structural reinforcement,engineering rescue and other fields. But judging from the relevant research and practice,the reliability of post-installed fastenings is lower than that of the main structure or pre-installed fastenings,and the probability of local failure is larger. A reinforcement technique for post-installed fastenings has been discussed in this article with a specific project. Practice shows that the work performance of reinforced post-installed fastenings is excellent and reliable. And it could provide a reference for similar projects.