Calculation Theory And Finite Element Analyse On Shear Strength Of Reinforced Concrete Member

It is shew that there are many factors to affect shear strength of concrete. Including shear span ratio,rate of concrete strength,ratio of longitude bar, ratio of stirrup,types and position of load,forms of section,overall thickness of member and so on. So the calculation of concrete shear strength is very complex. The share strength formula of code is educed from experiments data and theoretic analysis. Because the experiments are limited by experiment condition, load-on method, material nature, etc. So it is difficult to find a formula to reflect all the practical conditions. Therefore many codes adopt the minimum value as the calculation equation to ensure safety.This paper generalize research results of the former scholars and put forward calculation theory on concrete components based on concrete mechanics. Also apply finite element method to do some analysis. Then apply the result to the construction of text on concrete mechanics, in order to provide a flat form for future study and exchange.In this paper, results of experiments and theoretic analysis about concrete throughout the world is generalized and different calculation equations of shear strength of concrete on different section is put forward. Studying the mechanics deduction of different calculation model about concrete beam without web reinforcements under combined force. Then the unite shear strength was bringed forward and some analysis was done between experiment data and calculation result ,code method and formula method. The shear strength of concrete beam without web reinforcements with axial compress is studied by truss with tow bar,ultimate balance theory and modified compression field theory. The comperation is done on characteristics of material,calculate regulation and calculate formula. Then an exampal was taken to explain their difference. Apply finite element method Ansys to do some analysis. The network curriculum text is compiled based on mechanics analysis content, text and code.The main objective regarding to the concrete structure is to build the curriculum into the reflection on concrete structure newest research results, manifests national level registration structural engineer to take a test, and adapts "the big construction" about the career development, has the bilingual education function high-quality goods curriculum. With in turn a new way in learning concrete curriculum will be builded up.