Research On Shear Behavior Of Reinforced Concrete Beam Under Uniform Load

The reinforced concrete structure members should avoid brittle failure in the processof using, but the most prone to brittle failure is shear failure. In case of componentsoccurred shear failure, it must be the reason and mechanism of component damage due tostudy, take the necessary measures to prevent the occurrence of similar damage. For along time, domestic and foreign scholars did a lot of research work of the shear ofconcrete member, however, because of the influence factors of shear component is more,the study of concrete is more complicated, and research trials mainly concentrated loadsbased, relatively small for finite element analysis of deep beams under uniformlydistributed load. The shear calculation formula in specification for each country is morebased on less test data. In order to verify the specification whether the same formulaapplies to more structural member, it need to test the database about the content of theshear is rich, and through the test data calculation of standard test data.For in-situ reinforced concrete simply supported deep beams shear performance hascarried on the theoretical analysis and calculation, through the analysis of the theoreticalcalculation and finite element software of specification beam under uniformly distributedload from the strength of concrete, stirrup reinforcement, effective section height of thebeam; Aspects of longitudinal reinforcement and depth of its shear strength are analyzed,evaluated the impact of various factors on the shear strength of the beam. And throughthe theoretical calculation standards of data and the results of finite element analysis wereanalyzed. The results show that reinforced concrete deep beam with the strength of theconcrete enhancement, the shear capacity of beam has been increased, with the effectivecross-sectional height of the beam increases, the shear capacity of beam has beenincreasing, with the increase in the rate of longitudinal reinforcement, the shear capacityof beam has been slightly increasing, with the increase of stirrup reinforcement ratio, theshear capacity of beam has been increasing.