The Seismic Test Of Masonry Wall With Structural Column And Corresponding Simulation Analysis Based On Block Mortar Integrated Model

This paper research topic belongs to the national natural fund project(50978177)and science and technology research project in Shanxi Province,a typical masonry wall specimens for the test and simulation analysis,the wall between the Windows of the wall as part of the common,equipped with constructional column and horizontal steel fabric,through carries on the pseudostatic test and reciprocation of ABAQUS finite element analysis,comparing with the results of both,to explore the applicability of the simulation.Firstly,this thesis summarizes the characteristics of the masonry structure,the common failures,the typical failure modes,the current research status and the research contents,and expounds the test specimen design,the equipment installing and loading,the failure of the specimen and the corresponding analysis results.Then,it is concluded that the wall suffered bending failure and this specimen has good ductility by the hysteretic curve and the skeleton curve.Secondly,in view of the preparation for modeling,on the basis of the test in the previous chapter,the material performance parameters corresponding to each component involved in the test are defined,and in accordance with every parameter standardized in the test,the required parameters about the concrete,the stress,the strain and the damage are calculated through the application of the concrete damage plasticity model.The constitutive relations of representative masonry materials are summarized,including empirical and damage types,in which the constitutive relation of damage is modified on the basis of plasticity of concrete damage.In comparison with these constitutive relations,it is concluded that masonry damage constitutive for simulation is feasible.The relevant values are also obtained for the constitutive relation of damage.Finally,the test wall is simulated by ABAQUS finite element software under unidirectional loading and cyclic loading.Plus,to verify the accuracy and adaptability of modeling results,the qualitative and quantitative comparisons to the corresponding data and results obtained from the test are conducted,containing stress nephogram,hysteresis curve,skeleton curve ductility,etc.