Experimental Study On Seismic Performance Of Superimposed Wall Plane And Nonlinear Finite Element Analysis

At the present time, with the deep development of the housing industrialization, more requirements were brought out on housing quality, building materials and environment-saving, various new materials and new structures emerged as the time required. In this paper, it puts forward new shear wall structure that has a series of benefits, such as good behaval of structure, construct conveniently, reasonable cost of building, meanwhile, it also meets the requirement of environment-saving, and that this new structure is based on superimposed wall plane that introduced from Germany, then we studied its seismic performance by dint of the quasi-static tests and accordingly applied finite element analysis of ANSYS.Experimental design has three shear wall plane specimens, one of them is reinforced concrete shear wall plane, the rest concludes two superimposed shear wall plane. By way of the quasi-static tests, the load displacement stagnates time of curve have been measured and calculated the ductility factor, working index and so on. It has still analysed failure patterns, mechanical behavors and earthquake resistant capacity. Experiment and analysis indicates that, comparing with reinforced concrete wall plane, the integrity of superimposed wall plane is good, its bearing capacity increases owing to steel lattice structure and conceal column or horizontal structure steel located in vertical gap joint Though the plane's ductility and wasted energy capacity reduces a little. The simulative results of ANSYS shows that the structure of conceal pillar and horizontal structure steel located in vertical gap joint of superimposed wall plane have little impact on bearing capacity, but ductility increases and wasted energy decreases by using of the horizontal structure steel, what's more, doing simulation of stress tansfering characteristics and process of jap jiont and analysis of horizontal steel'simpact on transfer of inernal forces.The main content of the paper follows as:1. Researching on three pieces of plane (conclude one reinforced wall plane and two superimposed wall plane) to analyse the failure patterns and the crack patterns are different between conceal column and horizontal structure steel located in superimposed wall plane, and find out its integrity, and bond failure features of vertical gap joint and laminated surface.2. Studying bearing capacity including crack load, yield load and ultimate load, formability, wasted energy by testing load displacement stagnates time of curve and horizontal load strain of curve.3. Contrasting stress distribution, failure mode, bearing capacity between the experimental results and the results of ANSYS analysis to further study earthquake resistant capacity of superimposed wall plane, and study horizontal steel's influence on shearing force and bearing capacity.