EXPERIMENTAL AND FINITE ELEMENT ANALYSIS ON THE SEISMIC PERFORMACE OF EBF FABRICATED WITH HIGH-STRENGTH STEEL
Ming Lian, Mingzhou Su* and Weihui Zhong
Department of Civil Engineering, The Xi’an University of Architecture and Technology, Xi’an, China
This study performed cyclic tests of one 1:2 length scaled one-bay and one-story Y-shaped eccentrically braced frame fabricated with high-strength steel (Y-HSS-EBF) specimen to investigate its seismic performance, which included the failure mode and the load-bearing, ductility and energy dissipation capacities. The finite element model of the test specimen was established by ABAQUS. A comparison between the experimental and numerical results was performed. Moreover, several full-scale finite element models of Y-HSS-EBF with shear link were established by ABAQUS and nonlinear analyses were used to research the effects of shear link length to their seismic performance. The test results indicated that the specimen had a good deformation capacity. The hysteretic curves were very plump, which implied that the specimen had a significant energy dissipation capacity. The Y-HSS-EBF is a safe dual system with useful seismic performance. The designed shear link dissipated the energy via shear deformation during the cyclic loads. The numerical analysis results indicated that the shear link length could obviously influent the seismic performance of Y-HSS-EBF.
Eccentrically braced frames (EBFs); High-strength steel (HSS); Cyclic loading; Hysteretic behavior; Finite element analysis