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为研究预制装配整体式混凝土(PC)框架结构的基础抗震性能,完善预制装配整体式混凝土框架结构应用基础隔震技术,对实际工程进行基础隔震MIDAS/GEN有限元分析,通过对比铅芯橡胶支座的隔震模型与非隔震模型,以说明基础隔震应用的有效性。研究表明,施加隔震支座装置后结构振动频率明显比未施加隔震支座装置的振动频率小。相反,振动周期则比未施加隔振支座装置的模型要长,得出施加隔震支座装置的结构更有利于抵御地震作用。
In order to study the basic seismic performance of the prefabricated monolithic concrete (PC) frame structure and to improve the base isolation technology of the prefabricated monolithic concrete frame structure, the base isolation MIDAS / GEN finite element analysis of the actual project is carried out. The isolation model and the non-isolation model of the support are used to illustrate the effectiveness of the base isolation application. The research shows that the vibration frequency of the structure after applying the isolation bearing device is obviously lower than that of the vibration isolation device without the isolation bearing. On the contrary, the vibration period is longer than that of the model with no vibration isolation device, which shows that the structure with the isolation device is more favorable to resist the earthquake.