高层隔震模型结构双向地震反应的数值计算与试验

为研究高层建筑采用铅芯橡胶垫进行隔震后的结构减震效果,对一两向不同高宽比1:16小比例尺隔震结构模型,进行了双向不同地震波输入下的地震反应数值计算和振动台试验分析。对模型上部结构加速度和隔震支座位移反应的分析表明,隔震技术对高层建筑同样有较好的减震效果;数值计算结果与振动台试验结果的对比分析表明,两者具有较好的一致性,数值计算较好地模拟了振动台试验;两组数据的相近证明了数值计算结果和振动台试验过程进行的正确性。

Numerical calculation and test for two-directional earthquake responses of a high-rise isolated structure model

For analyzing reduction vibration effect of high-rise isolated structure with LRB, numerical calculation and shaking table test for two-direction earthquake responses of isolated structure model under different earthquake waves were gone. The model structure has different height-width ratio on two directions with scale down of 1:16. Earthquake acceleration responses of model structure top and isolation bearing displacement responses been analyzed. Analysis shows that isolation technology for high-rise structure also has good reduction vibration effect. Analysis for shaking table test result and numerical calculation result shows that numerical calculation well has simulated shaking table test. Both good uniformity proves correctness of numerical calculation result and whole shaking table test process.