Design Of A New Type Of Masonry Structure And Damage Analysis Of Simulated Earthquake Loading

This paper studies the sintered ordinary brick masonry structure under the action of strong earthquakes and the load-bearing wall presents a bending failure mode,that is,under the action of strong earthquakes,the wall of a masonry structure house has bending cracks that can be closed in the lower part of the wall to avoid shear failure..To achieve the purpose of making the masonry structure not only capable of not falling under a major earthquake under rare earthquakes,but also being able to continue to be used through simple repairs or without repairs.The types,advantages and disadvantages and development process of masonry structures are briefly described,and the types of masonry structures and their failure modes under earthquake action are introduced.It expounds the great contributions made by domestic and foreign scholars in masonry structure,and finds out the shortcomings of the current research on masonry structure,and puts forward the research content and purpose of this article.This article briefly describes the design,production and assembly process of the test walls Ⅰ-TB1 and Ⅰ-TB2.The wall damage and the final failure form during the loading process are described in detail,and the hysteresis curve is described in detail.And the skeleton curve was analyzed.By using ABAQUS to perform finite element simulation analysis on the specimen model I-TB1(masonry wall with structural column)and model I-TB2(masonry wall with structural column and window sill wall),the basic masonry structure The organization relationship was summarized,sorted and classified.The modeling process and parameter settings of ABAQUS are described in detail.A 50 s reciprocating load was applied to the model,and the tensile damage and compression damage cloud diagrams of the model were obtained through post-processing,and the damage process and damage morphology were analyzed.The hysteresis curve and skeleton curve of the model were extracted through post-processing,and made analysis.This paper uses ABAQUS to carry out finite element analysis on a five-story masonry structure house.By establishing two models: model one,the wall under the window is connected with the wall between the windows;model two,the wall under the window and the wall between the windows are separated(in order to make the wall under the window not contact the structure itself,it is replaced by a line load)for rare earthquake action Next comparative analysis.The selection method of seismic wave is introduced,and the modal analysis of the two models is carried out.Under the action of rare earthquakes,the interlayer displacement angles of the two models are compared and analyzed.The damage of the wall is determined by comparing the cloud diagram of tensile damage,and the crack location is determined by comparing the cloud diagram of the maximum principal plastic strain.The influence of the wall under the window on the seismic performance of the structure is discussed.