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介绍了钢筋沥青隔震层设计时应满足的条件,并利用时程分析法中的Newmark-β法分析了地震动峰值、隔震层阻尼以及隔震层刚度等因素对钢筋沥青隔震结构隔震效果的影响。在实验室进行了钢框架模型振动台试验,研究上部钢框架等效抗侧刚度与隔震层抗侧刚度之比对隔震效果的影响。结果表明,各种工况下的钢框架等效抗侧刚度与隔震层抗侧刚度之比对隔震效果影响显著;当抗侧刚度比达到一定值时钢筋沥青隔震结构可以达到较好的隔震效果。这也证明钢筋沥青隔震技术是非常实用的隔震技术,所研究的结果可为编制有关规程提供参考。
This paper introduces the conditions that should be satisfied when designing the reinforced asphalt bracing layer. Based on the Newmark-β method of time-history analysis, the influence of the peak value of earthquake, the damping of the baffle and the stiffness of the isolation layer on the bracing structure Effect of seismic effect. The shaking table test of the steel frame model was carried out in the laboratory to study the influence of the ratio of the equivalent lateral stiffness of the upper steel frame to the lateral stiffness of the isolation layer on the isolation effect. The results show that the ratio of the equivalent lateral stiffness of the steel frame to the lateral stiffness of the isolation layer has a significant effect on the isolation effect under various conditions. When the lateral stiffness ratio reaches a certain value, the rebar isolation structure can achieve better results Isolation effect. This also proves that reinforced asphalt isolation technology is a very practical isolation technology, the results of the study can provide reference for the preparation of the relevant regulations.