【摘要】 为了分析长周期地震动的时频域特性及其对减隔震桥梁的影响,首先利用HHT理论分析长周期地震动的周期特性及能量特性,然后通过有限元软件建立合理的减隔震桥梁有限元模型,分析不同地震动作用下减隔震桥梁的动力响应,最后从能量的角度研究了桥梁结构的地震能量反应。更多还原

【Abstract】 In order to analyze time-frequency domain characteristics of long-period ground motion and effects of its impact on the isolated bridge.Firstly,this paper analyze period and energy characteristics of long period ground motion.Then the rational finite element model of the isolated bridge was established.Analyze seismic response of different period ground motions on the isolated bridge.Finally,study energy response of the bridge on the angle of energy.更多还原