Shear Torsion Analysis Of Numerical Simulation Of Steel Reinforced Concrete Special-Shaped Column Section Type-T

With the acceleration of the urbanization process, saving land, saving resources and protecting the environment is extremely urgent. The steel reinforced concrete special-shaped column frame structure can realize the large Bay residential structure. Steel reinforced concrete(SRC) structure seismic performance is superior, the force is more reasonable. Especially that of steel reinforced concrete special-shaped columns, the bearing capacity of reinforced concrete is huge improved. In recent years, the steel reinforced concrete architectural structure has been used more and more widely.Today for the reinforced concrete member in bending, shear and torsion under the joint action of stress analysis is already quite mature, but for steel reinforced concrete members under complex stress condition analysis less. The current specification is based on the theory of elasticity, without considering the nonlinear characteristics of the material, there is no more experimental basis, and sometimes it is not economical. Therefore, bending, shear and torsion of concrete strength and deformation of concrete is the subject of the study of scholars are committed to research. At present, the theory of space truss theory and the theory of the theory are presented.In this paper, the shear torsion process numerical simulation analysis on steel reinforced concrete T type columns using ABAQUS software component. First the literature experimental specimens of finite element simulation, simulation calculated data and experimental data were compared. The results show that the finite element software analysis results and the experimental results are in good agreement. It is found that simulation calculated data and actual experimental results relatively high degree, error is within a reasonable range. This shows that the finite element model is reasonable and accurate, and the validity of the finite element model is determined. Also has been defined, simulation model of concrete and steel constitutive relationship, unit type selection, unit grid division principle and processing of the interaction between the finite element model of steel and concrete, load steps and so on key factors. On the basis of the four component of the paper, the whole process of numerical simulation analysis.Due to the steel and concrete, the interaction between the steel and the reinforced framework is more complicated, at present of reinforced concrete members of extreme limit bending torsion calculation generally use superposition method. This paper of T-section steel reinforced concrete special-shaped column shear torsional process is affected by the performance simulation based on the proposed considering the steel bond slip effect of the superposition method, mixed superposition method. And compared with the traditional method, the calculation model and the experimental results are in high agreement with the experimental results. Fold and fold addition, in addition to the traditional method, the cross section is divided into internal type steel and external box type concrete members, but also the bond slip constitutive relationship of steel reinforced concrete columns. Using the ultimate bearing capacity of the steel by a reduction factor and the ultimate bearing capacity of the concrete. In this paper, the accuracy of the combined method is verified by the finite element simulation analysis of the four components.Through the finite element analysis of drawing out the stress of each component of the curve of stress-strain and get the concrete, reinforcement and steel should stress nephogram and member of the cracking torque and ultimate torque, as well as in shear under combined torsion by force performance, of T-shaped section of steel reinforced concrete special-shaped column by force performance of the whole process of analysis. The use of different types of steel and steel reinforced concrete to demonstrate the rationality of combination method. The results of computation show that, this combination method is suitable for steel reinforced concrete with right protection layer thickness. According to the different component analysis, influence of special-shaped steel reinforced concrete column’s bearing capacity factors of these factors on the anti torsion, shear, and the influence mechanism of the action of the torsion and shear.