The Seismic Performance And Seismic Energy Dissipation Analysis Of T-type Steel Frame Structure

Steel structure with no harmful substances,can be recycled,insulation and other characteristics of noise,and gradually become energy-saving emission reduction,low-carbon environmental protection and other areas of energy-saving buildings,replacing the larger energy consumption of traditional buildings and has been widely promoted.As the people of the building in the functional and aesthetic requirements are getting higher and higher,many of the irregular structure of the ground,all kinds of irregular steel frame structure used more and more common,T-type steel frame Structure has been widely used,However,there are few studies on T-type steel frame Structure at home and abroad.In this paper,T-type steel frame Structure is studied in detail.In this paper,the theoretical analysis method of seismic research is described in detail,and the theoretical analysis methods such as modal analysis,response spectrum analysis,time history analysis and Pushover analysis are expounded.Then the T-type irregular steel frame structure model was established,and the seismic behavior of T-type steel frame structure under earthquake was analyzed by finite element SAP2000 software.In order to increase the seismic capacity of the model,the influence of the support on the seismic performance of the T-type steel frame structure and the influence of different support are studied.In order to achieve better damping effect,due to the viscoelastic dampers can play a role in energy dissipation and the use of very common,this paper studied the T-type steel frame structure viscoelastic dampers energy dissipation,and study sticky Optimal placement of elastic dampers in T-type steel frame structures.It is found that the T-type steel frame structure is mainly in the Y direction under the action of the earthquake,the second mode is the translational direction in the X direction,the third mode is the twist in the Z direction Mainly.The model of the supported support is more effective than the unsupported model,and the model of the chevron-shaped support is better than the model with the single diagonal bar support.Since the Y-direction support is set,the displacement in the Y direction is reduced Of the more obvious,and the X direction of the floor displacement will be a corresponding reduction.Finally,the plane and space optimal arrangement of the viscoelastic dampers of the T-shaped steel frame structure are studied.It is concluded that the best planar arrangement of the viscoelasticdampers is arranged along the long side,and the optimal arrangement is in the form of Way arrangement.This paper can provide the theoretical basis for the arrangement of the irregular steel frame structure and the arrangement of the viscoelastic damper.