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Research on the Connection Method of Column-Wall Member in Precast Frame-Shear Wall Structure
Author(s): 
Pages: 408-417
Year: Issue:  3
Journal: Journal of Shenyang Jianzhu University(Natural Science)

Keyword:  precastnumerical simulationframe-shear wall structurecolumn-wall connectionkeyway;
Abstract: This paper studied the column-wall member connection technology in precast frameshear wall structure and analyzed its mechanical behavior,in order to provide some references for construction and design of this structure. Four kinds of column-wall connection methods: U-shaped bar,straight bar,buckle bar,and straight U-shaped bar were proposed and built. Based on the software ABAQUS,FE numerical simulations for mechanical behaviors of column-wall members with different kinds of connections under the same axial compression ratio were carried out and compared with the cast-in-situ ones. For the precast specimens,impacts of different friction coefficients described contact properties and effects of keyways on mechanical performances and bearing capacities were also considered. The results indicate that under the same axial compression ratio andsame contact properties,comparing with the cast-in-situ ones,the bearing capacities of the columnwall specimens used the four kinds of connections are slightly reduced,but deformations are slightly lifted,and the failure patterns are basically same. For precast specimens,friction coefficients have some impacts on bearing capacities; installation of keyways can improve mechanical properties of specimens. Conclusion is that the proposed four kinds of precast column-wall connections are available,which can provide references for research and engineering design of precast frame shear wall structures.
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