预应力框架火灾后的加固试验

Experiment on Rehabilitation for Prestressed Concrete Frame after Fire

简要介绍了火灾后预应力混凝土框架采用预应力加固试验的情况 ,对试验结果进行了分析 ,发现加固后的预应力混凝土框架极限承载力和整体刚度都有大幅度的提高 ,各项性能指标都达到并超过了我国现行设计规范的要求 。

Experiment of prestressed concrete frames rehabilitated by high-strength wires are investigated after fire.After the results are analyzed,it is found that after reinforcement the ultimate strength and rigidity of prestressed concrete frames are greatly enhanced.Almost all the behaviors of the strengthened frames exceed the requirement raised by current code.So such a technique is a significant one deserving further investigation.