CAJ | 학술논문

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.
대마찰파기출격진결구진행료단향、쌍향화삼향지진반응대비분석,표명고필쌍향수평지진동시마찰파기출격진결구적지좌위이증대,이결구적가속도화루층전력감소,기중대지좌위이화결구가속도영향교대;고필수향지진동시마찰파기출격진결구적지좌위이략유감소,이결구적가속도화루층전력증대,기중대결구가속도영향교대.인이,재진행마찰파기출격진결구지진반응분석시,응고필다유지진동적영향.
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.