| At present,China has preliminarily formed an assembly-type residential structure system with Chinese characteristics,that is,an assembly-type residential structural system dominated by light steel structures.In order to meet the needs of times and national circumstances,a new type of composite wall,cast-in-situ metal tailings foam concrete composite wall came into being,as non-load-bearing walls in the frame structure.Due to the fact that there are few studies on the out-of-plane seismic performance of this type of wall in the world nowadays,this paper studies the out-of-plane seismic behavior of the cast-in-situ metal tailings foam concrete composite wall by means of shaking table test,to study whether the wall can meet the seismic needs and conduct the dynamic analysis of cast-in-situ metal tailings foam concrete composite wall.The main contents include four parts.(1)Shaking table test for a total of 27 working conditions under the action of three groups of seismic waves for a small frame structure(containing two new types of walls).In the experimental study,the acceleration response,displacement response and wall dynamic characteristics of two new type of wall in the frame structure were processed,and the data of two walls in the same frame was compared and analyzed.(2)This thesis analyzed the dynamic characteristics by modal analysis.The response results and the theoretical analysis results of the dynamic characteristics are compared with those of the shaking table test.These showed that although there are some errors,it is feasible to simulate shaking test with this kind of finite element software.(3)With appropriate working conditions from the experiment,using ABAQUS finite element analysis software to build the shaking table test model of cast-in-situ metal tailings foam concrete composite wall,we analyzed the acceleration time history and displacement time history and arrived at the acceleration time response curve and the displacement response curve for the wall through the finite element simulation analysis.Comparing the response curve with the actual test results of shakers,it can be concluded that the foam concrete composite wall with cast-in-place metal tailings meets the current seismic code requirements.(4)Using a set of traditional brick masonry walls of the same size,the finite element simulation analysis is carried out under the same simulated shaking table test conditions.Comparing and analyzing the acceleration time history,displacement time history and equivalent plastic strain graph of the two kinds of wall,the results showed the superiority of out-of-plane seismic performance of the cast-in-situ tailings foam concrete composite wall. |
