Experimental Research On RC Frame Repaired By Sticky-steel

The reinforced concrete are often subjected to different damages in service which leaded to the constant declining of bearing capacity, stiffness and stability,it leads to various dangerous problems with buildings. Thus,the strengthening of existing reinforced concrete structures has become a new hot spot for the construction industry. But the reinforcement of damaged the reinforced concrete framing structures lack of thorough research at present.Threes pecimens with the same sizes,the same reinforcement ratio and hoop reinforcement ration are made,and one as contrast frame directly destroy, the other three frames are loaded to damage after unloading, using three different strengthening modes of its reinforcement, this paper makes a detailed discussion sticky framework of steel reinforcement KJ-2. It exerts constant axial force on column cap end and low cyclic loading on beam end. Beam load and displacement,cracking behavior ,the steel and the steel plate strain changes are investigated in this article.Stickeup steel reinforcement KJ-2 is comparative analysis with not for strengthening the KJ-1,after the way in horizontal cyclic loads the role of destruction test. Through comparative analysis of test data analysis and theoretical analysis obtains: 1, the steel reinforcement stickup KJ-2, its bearing capacity and rigidity, ductility and energy dissipation capacity have different degrees of improvement, 2, system theory analysis shows that the framework are sticky steel, effective reduced outer the load on node force plays a role to improve node properties.Based on the experimet and existing research results, this article the oretically analyzes the anti-shear capacity of reinforced beam-column and deducts the formula.The experimental results agree with simulative result swell.The research calculation in this paper can be some reference for steel plate reinforcing framing structure to strengthen buildings.