Study On Shear Resistance Of Anchor Plate Reinforced Concrete Beams

At home and abroad in recent years,The study of strengthening methods are mainly concentrated in two pasting steel plate and paste composite fiber reinforcement,but are prone to sheet strip damage,material strength not give full play to influence the reinforcement effect.Anchor bolt steel reinforcement as a new reinforcement technique,the steel plate by anchor bolt,the constraint effect of the chemicals and closely contact with concrete,overcome the reinforcement material is easy to peel,cannot play its material performance characteristics.At present,there are relatively more bending tests and less shear reinforcement studies on the beams reinforced with bolted steel plates,and there are a lot of cases needing shear reinforcement in the project.To this end,this paper aimed to anchor the shear performance of steel reinforced concrete beam test,the main result is obtained by using the test combined with finite element software ABAQUS to component of shear bearing capacity,stiffness,steel strain,anchor bolt shear deformation analysis,explore the anchor plate overall performance and the regularity of shear reinforcement concrete beams.Anchor stick steel strengthening technique for reinforced concrete beams are experimental study of shear reinforcement,shear span ratio of reinforced concrete beam and anchor bolt and anchor bolt diameter configuration parameters on the effects on the shear properties of the material in the reinforcement beam is studied,it is concluded that the influence law of parameter changes on the reinforcement effect and reasonable engineering Suggestions are put forward.According to the experimental study on the analysis of lateral beam anchor stick steel plate reinforced shear mechanism of reinforced concrete beam,put forward by the force formula of shear bearing capacity of reinforced beam and anchor bolt strength reduction factor,and compared with the test results prove the rationality of the formula,the engineering reinforcement scheme design Suggestions are put forward.Based on the beam side anchor steel reinforced concrete beams with finite element analysis,discusses the shear span ratio,bolt diameter,bolt arrangement,the influence of the reinforcement effect and comparing with the test results further verify the research conclusion,at the same time for different grade concrete beam shear condition is analyzed,it is concluded that the concrete strength grade against has a great influence on shear bearing capacity increase.