Mechanical properties of buckling restrained steel plate shear wall with prestressed cable nets

Abstract:

To optimize the mechanical performance of steel plate shear wall (SPSW), a novel buckling restrained steel plate shear wall (CN-SPSW) was proposed. In the CN-SPSW, prestressted cable nets were placed on the either side of infill panels to restraint the early buckling, and the out-of-plane deformation would be restricted by the panel's pre-tension. A non-linear finite element model was established via ABAQUS software package to study the hysteretic behavior of CN-SPSWs. The results show that the cable net is a kind of flexible buckling-restrained member, and it can reduce the out-of-plane deformation of infill panels significantly. Compared with the steel plane shear wall, peak bearing capacity and energy dissipation capacity of CN-SPSW are increased by 18% and 47% respectively with a width-to-thickness ratio of 1 000. Parameter analyses suggest that prestressted cable nets should be applied to SPSW whose width-to-thickness ratio is more than 600.