The Stud Parameters Influenced Steel Reinforced High-Strength Concrete Columns

Since the fifty's of the last century,the introduction of steel reinforced concrete structure developed gradually in our country with the apid development in recent years. Steel reinforced concrete structure coexisting two kinds of different materials work toghter. In order to ensure the safety of the steel reinforced concrete structure and effective work, most studies have neglected the interaction between concrete and steel. The case transfers have failed hear forces between the better method and study. It is particularly important to study the two different material between the force transmission mechanism.In this paper, using the finite element soft ware ABAQUS to establish the HSRC model with studs, influence analysis of law of the shear connectors on the seismic performance of HSRC columns as the break through point, using spring element to simulate the stud shear connectors, numerical simulation of selected constitutive equation suitable. By considering the stud stiffness of steel reinforced concrete column axial deformation the contact surface, interface strain change type steel flange and the concrete and the influence of the axial force distribution, illustrate the necessity of considering the stud stiffness, and based on this to stud diameter, spacing, location of the parametric analysis, to achieve the purpose of optimization design of stud;In order to solve the stud in practical engineering of steel reinforced concrete (HSRC)column seismic effect analysis of optimization problems. In under cyclic loading, considering the stud seismic performance of steel reinforced concrete frame column connection, emphasis on considering the effect of axial compression ratio, concrete strength grade, size of studs pacing on ductility of HSRC columns. To determine the axial compression ratio and reasonable range from the ductility of the results, and provide a theoretical basis for the later·research work.