隔震换能系统换能效果试验研究

隔震换能系统是在隔震层安装了换能装置的隔震结构,该系统能够将地震传给结构的部分能量转换成液压能,并储存起来。对5层钢框架模型的隔震换能系统进行模拟地震振动台试验,研究换能装置的性能和隔震换能系统的换能效果和控制效果,为隔震换能系统的实际应用奠定基础。试验表明,换能装置的换能性能良好,出力可靠,耗能稳定,在控制效果接近普通橡胶垫隔震系统控制效果的前提下,换能效率达到了50%～80%。

EXPERIMENTAL STUDY ON EFFECT OF ENERGY TRANSITION OF BASE-ISOLATION WITH ENERGY TRANSDUCER SYSTEM

The base-isolation with energy transducer(BIET)system is the base-isolation structure equipped with energy transducer on isolation storey,which can transform part of the seismic energy into hydraulic energy and store it.Shaking table tests of a 5-floor steel frame model(BIET system)are conducted to study the effects of energy transition,the control of the BIET system,and the performance of the transducer.The study lays the foundation for the application of the system.The results of the tests show that the energy transducer performs well in energy transition with merits such as reliable output of force and stable energy dissipation,and the BIET system can transform 50%～80% of the seismic energy into hydraulic energy on the premise that the structural control function is similar to that in the lead rubber bearing isolation system.