Mechanical Performance Analysis Of Inclined Column Transfer Story In Frame Supported Shear Wall Structure

With the development and advancement of constructiontechnology,the types and performance of conversion structures are constantly updated and improved.For the inclined column transfer structure in the transfer member,the research and application of related aspects still need researchers to continue to explore,so this article will do further research on the force performance and deformation characteristics of the weak part of the inclined column transfer structure.The contrast method is adopted,through the comparison of the inclined column conversion structure and the beam type conversion structure;by changing the comparison of the concrete strength grade;by changing the comparison of the longitudinal reinforcement ratio of the conversion beam.The analysis content and conclusions mainly include the following aspects:1.Through the comparative analysis of beam-type transfer structure and inclined column-type transfer structure,ABAQUS software is used to analyze the two models as a whole under vertical load.The results show that the inclined column transfer structure has better resistance to vertical and horizontal deformation than the beam transfer structure due to the supporting effect of inclined column and the stable triangular system of inclined column,transfer beam and frame column.2.The stress,deformation and crack of inclined column transfer structure with different concrete strength grades under vertical load and horizontal action are analyzed by using ABAQUS.The results show that: the mechanical properties of down conversion structures with different concrete strength grades are different.High strength concrete can improve the overall bearing capacity of the structure,but it will reduce the ductility of the structure and weaken the energy consumption capacity.It is found that with the increase of concrete strength grade,the cracking load of the whole model has little change,so the improvement of the concrete strength grade has little influence on the cracking performance of the structure.However,with the increase of concrete strength grade,the mid span section crack of transfer beam will be improved.Comprehensive consideration,we cannot blindly pursue higher concrete strength grade to improve the bearing capacity and ignore the ductility performance of the structure.We should choose the concrete with reasonable concrete strength grade to ensure the overall deformation capacity of the structure.3.Based on the study of bearing capacity,deformation capacity and structural failure of inclined column transfer structure with different longitudinal reinforcement ratio of transfer beam,The conclusions are as follows: with the increase of reinforcement ratio of transfer beam under longitudinal stress,the bearing capacity and anti-lateral stiffness of the whole structure are improved,and the anti-lateral ability is enhanced;the yield load and cracking load of the structure are less affected,but the structure is affected Cracking has no effect.The increase of reinforcement ratio in longitudinal direction of transfer beam increases the rigidity of "triangle system" composed of inclined column,frame column and transfer beam.This makes the whole structure more integrated.With the increase of longitudinal reinforcement ratio of transfer beam,the failure mode of transfer beam section changes from sliding type to bending shear type.However,the longitudinal reinforcement of the transfer beam has limited influence on the failure of the inclined section of the transfer beam.