Studies On The Damping Energy Consumption Properties Of The High-rise Steel Frame

At present, because of the advantages, steel structure building has been widely used in practical engineering, and people have higher requirements the seismic performance of buildings. As an increasingly mature and sophisticated shock absorption technology, damper plays a important role in structural seismic energy consumption. Different damper has been developed gradually and used in practical engineering. Damper is generally divided into veloeity-based dampers, displacement-based dampers and other dampers. The dissipative damping effects also have big difference. This paper aims to figure out the effect of absorbing vibration of different types of dampers, and the seismic performance influence when adopt different arrangement of the damper. the main works and results are listed as following(1) Through the theoretical research, this article has selected the right analytical model of the main structure, the resilience models and parameters of the dampers。 We will carry out structural dynamic time history analysis by elastic-plastic temporal analysis.(2) This paper use the finite element analysis software (SAP2000) to build a16th floor steel-frame structure, and gain the seismic response when distribution different types dampers. The research shows that the structure can gain excellent energy dissipation effect no matter what king of damper we use., and bring the seismic responses of structures under effective control. Displacement-base dampers can get better seismic response control results. It not only can better control the maximum displacement of the floor, it can also decrease the inner force of structural members.(3) This paper will contrast the energy dissipation result when the structure adopt the different disposal of the dampers, then research which kind of arrangement can get better energy dissipation result. The research shows that no matter which kind of damper the structure assign the structure can get ideal seismic response even if we assign the dampers on part floors of the structure. When we assign The same number of dampers on the structure, continuous layout can gain better energy dissipation result relative to Interlayer arrangement, but the control of top displacement time history have litter difference. Continuous arrangement can better control structure layer displacement angle of the lower floors, but relative to Interlayer arrangement, it get worse control of the structure layer displacement angle of the higher floors. There are81charts,2tables and70references in the paper.