【摘要】 对摩擦摆基础隔震结构进行了单向、双向和三向地震反应对比分析,表明考虑双向水平地震动时摩擦摆基础隔震结构的支座位移增大,而结构的加速度和楼层剪力减小,其中对支座位移和结构加速度影响较大;考虑竖向地震动时摩擦摆基础隔震结构的支座位移略有减小,而结构的加速度和楼层剪力增大,其中对结构加速度影响较大。因而,在进行摩擦摆基础隔震结构地震反应分析时,应考虑多维地震动的影响。更多还原

【Abstract】 The comparing analyses between unilateral,bilateral and triaxial seismic response of base-isolated structures with friction pendulum system are carried out.It is found that when the bilateral horizontal ground motions are considered,the displacements of isolation bearing will increase,the accelerations and the inter-story shears of the structures will decrease.When the vertical ground excitation is considered the displacements of the isolation bearing will slightly decrease,the accelerations and the inter-story shears of the structures will increase.So that the influence of multi-axial ground motions on seismic response of the base-isolated structures should be considered.更多还原