角钢与钢筋混凝土柱粘结锚固滑移研究

Research on the bond-slip behavior between angle bar and steel reinforced concrete

本试验是基于钢筋混凝土框架增层与扩建节点静载受弯及受剪承载力试验,目的是提高"角钢接柱"节点抗滑移能力并进行方案优化。通过分析前述试验破坏情况,提出了5种角钢粘结锚固抗滑移技术方案,并对该5种加固方案进行了承载力试验。基于有限元分析软件,采用实体单元建立了5组角钢接长构造节点的三维有限元模型,分析了不同试验方案的荷载-位移关系,依此论证了优化抗滑移最佳技术方案为植筋焊接方案。

This experiment was based on the experiment on shear ability and static loading capacity of extension project＇s steel reinforced concrete frame joint,aiming at improving the anti-slipping performance between angle bar and steel reinforced concrete. Through the analysis of that test,we came up with a series of reinforcement measures,and employed 5 reinforcement measures and took the experiment to test the static loading capacity. Then we analyzed these load-displacement relationships by FEM＇s 3D solid model. In view of the analysis,we demonstrated the best reinforcement measure was the installation of the angle steel by buring steel.