体外预应力加固钢筋混凝土框架结构试验研究

Experimental Study on Strengthening RC Frame Structres with External Pretressing Tendons

文章对4榀单跨钢筋混凝土框架进行了试验。在试验中对框架进行了体外预应力加固并施加以竖向荷载和水平反复荷载:分析、比较了加固前后框架结构的承载能力、内力分布和钢筋应力,并着重研究了加固力筋在各种荷载作用下的应力变化。

4 single floor single span RC frames are strengthened with external tendons and then vertically and horizontally loaded in experiment. The carrying capability and stress distribution of RC frame, the stress change of reinforced bar and external tendons are described.