CAJ | 학술논문

地震作用下高层建筑结构顶层的动力反应过大，会对设备的安全性及人的舒适度产生极大的影响，由于尺度的原因导致上述研究无法直接采用振动台进行试验。首先阐述了一种基于橡胶垫质量块系统放大效应的子结构振动台试验方法；然后基于matlab进行了一个三自由度体系数值算例，新输入加速度曲线和原输入加速度曲线较为吻合，证实了地震动传递函数的有效性；最后通过小型振动台进行了三种不同地震作用下整体结构模型试验和子结构模型试验，对比后的研究结果表明：两者的顶层加速度反应曲线趋于一致，最大值几乎相同，从而验证了橡胶垫质量块系统的放大效应和地震动传递函数对于模拟再现高层建筑结构顶层加速度反应的有效性和适用性，可为高层建筑结构抗震试验提供研究参考。
지진작용하고층건축결구정층적동력반응과대，회대설비적안전성급인적서괄도산생겁대적영향，유우척도적원인도치상술연구무법직접채용진동태진행시험。수선천술료일충기우상효점질량괴계통방대효응적자결구진동태시험방법；연후기우matlab진행료일개삼자유도체계수치산례，신수입가속도곡선화원수입가속도곡선교위문합，증실료지진동전체함수적유효성；최후통과소형진동태진행료삼충불동지진작용하정체결구모형시험화자결구모형시험，대비후적연구결과표명：량자적정층가속도반응곡선추우일치，최대치궤호상동，종이험증료상효점질량괴계통적방대효응화지진동전체함수대우모의재현고층건축결구정층가속도반응적유효성화괄용성，가위고층건축결구항진시험제공연구삼고。
When subjected to a strong earthquake,high-rise buildings ’ top floor undergoes large dynamic responses,they have a great influence on equipment and human safety.The study can not be conducted by using a shaking table test directly for the reason of scale limitation.Here,a method for substructure shaking table test with a rubber and mass system was introduced to reproduce dynamic responses of high-rise buildings’ top floor,and then numerical simulation for a 3-DOF system was performed with Matlab.It was shown that the curve of new earthquake imput agrees well with that of the original imput,the effectiveness of the ground motion transfer function is verified.At last,the shaking table tests with a whole structure model of the 3-DOF system and its substructure models under three different earthquakes were performed,and the comparative study results showed that the top floor acceleration responses all tend to be consistent,and the maximum values are almost the same,they prove the validity and applicability of the rubber and mass system and the transfer function for simulating the large dynamic acceleration responses of high-rise buildings’ top floor.The study results provided a reference for high rise buildings’ seismic tests.