Experimental Research On Seismic Performance Of Composite Shear Wall Incorporating GFRP-confined Concrete Core

Shear wall is commonly used in high-rise buildings and super high-rise buildings as lateral resistance structural members.But traditional reinforced shear wall is easy to crack due to it's heavy self-weight,which restricts its application in structures.To improve the seismic performance of the shear wall,the composite shear wall can combine the respective advantages of different materials through the combination of different materials,so that the mechanical properties and seismic performance of the shear wall can be improved.Therefore,in recent years the composite shear wall became one of the hot spots in research.Based on the advantages of fiber reinforced polymer(FRP)tube-confined concrete has high bearing capacity and good ductility and combined with the previous research results in our research group,Composite shear wall with CFST boundary columns incorporating GFRP-confined concrete core and Multi-partition steel-concrete composite shear wall incorporating a GFRP tube confined concrete core as boundary elements are proposed.The main research contents:1.Based on the existing test results of the Composite shear wall with CFST boundary columns incorporating GFRP-confined concrete core,we optimized design 2 pieces of Composite shear wall with CFST boundary columns incorporating GFRP-confined concrete core using the the layers of the GFRP tube as the changing parameter.And through the test under the cyclic loading,we get the influence of the layer of GFRP tubes on the seismic performance of this kind of composite shear wall by comparing failure mode,bearing capacity,deformation capacity,stiffness,energy dissipation capacity,stress state and so an.2.We propose Multi-partition steel-concrete composite shear wall incorporating a GFRP tube confined concrete core as boundary elements.Using the the layers of the GFRP tube as the changing parameter,we design 3 pieces of this find of shear walls and test them under the cyclic loading.Therefore,we get it's seismic performance by comparing failure mode,bearing capacity,deformation capacity,stiffness,energy dissipation capacity,stress state and so an.3.Combined with the test results,we analyze the seismic performance indicators of the Composite shear wall with CFST boundary columns incorporating GFRP-confined concrete core and Multi-partition steel-concrete composite shear wall incorporating a GFRP tube confined concrete core as boundary elementsto provide a basis for subsequent relevant research and engineering applications.