Experimental Study And Experimental Methods On Shear Behavior Of Anchors

Direct shear bolt steel plate reinforced method is a very effective reinforcement method.And compared with the traditional anchor steel plate,the anchor bolt has force of collaborative work performance,making steel plate fixed on the concrete structure more effective.One of the most important part of the reinforcement system is anchor bolt.Anchor bolt shear performance directly affects the bearing capacity of the reinforcement system.The recognizition of the shear performance is not perfect,especially in the shear properties of the anchor bolt test method and load device.These points still exist many disputes and problems to be solved.In order to provide a simple test design,we need a better method to catch more correct data.This paper will be focus on shear behavior of the single bolt.Trough Summarizing predecessors' points and using test method,this paper want to get a way to test the shear behavior of ahchors more like how they perform in engineering.At the same time,on this basis,this paper also studys on all screw and half screw bolt shear performance difference.lastly,this paper studys on normal group anchors' shear behavior.In this paper,the main test content:(1)New test method to explore: through summarizing the domestic and foreign related test plan,research,this paper design a new test method and test device.And this paper compares traditional and new test methods on M12 and M20 anchors.(2)Full screw and half screwanchors shear performance test:using new test method to study M16 anchors with full screw and half screw.(3)Normal group anchors' shear behavior: through M16 and M12 normal group anchors' shear behavior test,this paper studys on cooperativity of anchors.(4)this paper's innovational points:1)through summarizing predecessors' gain and loss,using their research and development of test apparatus for single anchor shear test.2)through the new shear test method,test on full screw and half screw anchors.3)with a new shear test of the shear performance test results of single anchor,this paperstudys on whether a group of anchor bolt has the ability of collaborative force.The conclutiong of this paper is that the new method is better than the traditional one.This paper suggests that in low grade concret,it's better to use full screw anchor bolts.As for nomal groupe anchor bolts,force of collaborative work performance is not good.