Experimental Research Of Seismic Performance Of Superimposed Concrete Wall Panels With The Vertical Seam

Superimposed slab concrete shear wall structural system has been widely used in Germany and other countries. It has the advantages of convenient construction, beneficial to environmental protection, industrial production, component quality easily to control and so on. They mostly don't consider seismic problem. Under the background of the introduction of Germany advanced production technology and production lines of concrete wall, floor, and other prefabricated components by Hefei National Housing Industrialization Base, the experiment on seismic performance of superimposed concrete wall panels with the vertical seam under the low-cycle repeated load is carried out.The main tasks of this dissertation are as follows:1.The article describes the program design of the experiment on seismic performance of superimposed slab concrete shear wall with the vertical seam from the design and fabrication of experiment components, the arrangement of measuring points and data collection in the experiment, the experiment loading system and so on.2.The article carries out the verifying experiment on the force state, deformation performance and ultimate failure modes of superimposed concrete wall panels with the vertical seam under the level seismic action, describes the experiment results from the crack development, stress and strain ,hysteretic response, bearing capacity, stiffness degradation, extensibility and energy absorption of the experiment components, compares with the finite element analysis results.3.Based on the experiment ,the article designs another two experiment components, uses the large general-purpose finite element software ANSYS to establish the finite element models of the general full-spot-pouring shear wall and the superimposed slab concrete shear wall panels, carries out the non-linear finite element analysis under the unidirectional load and compares with the experiment results.Through the comparison and analysis of experiment results and finite element calculated results, the following main conclusions come out: The seismic performance such as failure modes, integrity, bearing capacity, ductility, energy dissipation of superimposed concrete wall panels structure after the pouring of concrete to form overall structure with reliable structural measures at the vertical joint seam is the same as the general full-spot-pouring shear wall structure.