基础隔震结构能量反应分析
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摘要
对铅芯橡胶支座基础隔震结构进行了能量反应分析,研究了地震波峰值、基础隔震结构基本周期对结构总输入能量的影响,并对结构进行了耗能分析,表明随着地震波峰值的增大,结构的总输入能量增大,随着基础隔震结构基本周期的增大,结构的总输入能量减小;基础隔震结构总输入能量的85%左右被隔震系统耗散,使上部结构得到有效保护.
The analysis on energy response of base-isolated structures with lead-rubber bearings is carried out.The effect of the peak value of the ground motions and the fundamental periods of the base-isolated structures is studied,and the energy dissipation is analyzed.As the peak value of the ground motions increasing,the total input energy of the structure will increase.As the fundamental periods of the base-isolated structures increasing,the total input energy of the structure will decrease.The 85 percent of the total input energy of the structure is dissipated by the isolation system,so the superstructure will be in safety.
引文
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