Behavior of RC Beam-Column Joints Retrofitted by PC Bar Prestressing

本文介绍了钢筋混凝土结构梁柱节点的加固技术。本文提出的方法适用于节点较弱的既有结构。在Hyogoken-Nanbu地震灾害中，一些建筑的节点发生了故障。然而，目前还没有提出有效的技术来翻新关节。作者提出了两种改造方法。一种方法是采用PC筋预应力，另一种方法是采用钢臀部和钢板。实验证明，这两种方法都是有效的。

This paper shows the retrofitting technique of beam-column joints of reinforced concrete structures. The technique proposed here is used for existing structures with weak joints. Joints in some buildings failed in Hyogoken-Nanbu earthquake disaster. However, no effective technique had been proposed to retrofit the joints. The author proposed two methods of the retrofit. The one method uses PC bar prestressing, and the other uses steel haunches and steel plates. Both methods are proved to be effective by experiments.