Hysteresis Behavior Of High Strength Steel Combinatorial Structures With Inverted V Eccentrically Braces

The eccentrically braced frame structure combines the stiffness and strength of anordinary braced frame structure with the ductility of a moment-resisting frame resultinga better seismic performance. And the high strength steel combinatorial structures witheccentrically braces combine the advantages of energy dissipation of eccentricallybraced system and higher strength and material-saving of high strength steel.In this paper, several high strength combinatorial eccentric braced prototypestructure are designed using ETABS. An finite element model integrated beam unit withsolid unit was established in ABAQUS FEA software to simulate multi-layereccentrically braced structure under multi-particle proportional loads.And then verifythe accuracy of model. Finally, hysteresis analysis is studied of a frame of the prototypestructure.A comparison with ordinary eccentric braced frames in hysteresis analysis showsthe high strength steel combinatorial eccentrically braces structures have a worsehysteretic behavior, but with the merits of higher bearing capacity, higher security andfacilitating post-earthquake restoration. Based on the comparison between the highstrength steel combinatorial eccentrically braces structures of different height, its duallateral resistance advantages is further reflected. the potential advantages ofeccentrically braced steel frame structure of high strength steel in the actual applicationprogram are fully illustrated in this paper. Further related investigations are presented atthe end of the paper.