Elastoplastic Analysis Of Finite Element Of Seismic Performance Quasi-static Test Of Unreinforced Brick Masonry Wall

A brick masonry specimens axial compression test was simulated by usingthe finite element analysis software ANSYS, using integral and separate finiteelement model. Observing the whole process of the cracking and failure of thecommon brick masonry compression test through the simulation of commonbrick masonry compression test, to study its cracking load, breaking load andfailure mode,etc.Using integrated model to conduct finite element simulation ofseismic performance of unreinforced masonry walls quasi-static test,to study itsfailure mode, anti-collapse capacity, deformability and dissipation capacity,bearing capacity, etc. The content of the research is based on Shanxi science andtechnology key project20110313026-3and NSFC50978177.Firstly, research status, research characteristics and development tendencyof masonry structure are summarized. A new direction of masonry structure ispointed out. The research contents and purpose of this thesis are proposed.Design and production of test specimen, characterization of material’smechanical properties, installation of test specimen and equipment and loadingsystem and solution are described.Secondly, the masonry structure elastoplastic finite element analysismethods are discussed, and common constitutive relations and failure criteria ofthe masonry are compared and summarized. Using finite element softwareANSYS to conducte masonry specimens axial compression test and seismic performance of unreinforced masonry walls quasi-static test simulation analysis.The results of numerical simulation and test are compared to verify thecorrectness of test results and the validity of finite element modeling analysis.Finally, the effects of vertical pressure, height and width ratio, mortarstrength and other factors on the wall bearing capacity and seismic performanceare explored. The effects of different vertical pressure, height and width ratio,mortar strength on the failure shape, bearing capacity and deformation ability ofordinary brick walls are analyzed. And the seismic wave analysis of a two storymasonry structure is carried out.