仿古建筑的隔震加固研究

Seismic isolation and reinforcement technique of imitated ancient buildings

为对具有传统文化的仿古建筑在不破坏其原有建筑风貌的基础上进行抗震加固,将隔震技术应用于仿古建筑。采用数值模拟的方法研究仿古建筑隔震,建立隔震与非隔震两种有限元计算分析模型,并对加固前、后模型进行动力时程分析。通过输入不同频谱的El Centro Site波、Taft波和RH1TG055波,对比分析两种模型在地震作用下的位移、加速度时程曲线。结果表明:采用隔震技术加固方案后,结构的地震响应得到明显的降低,从而显著地提高了结构的抗震能力。利用该方法加固,节约造价,施工方便,可供同类工程参考。

To strengthen the archaized buildings without destroying their original architectural features,the seismic isolation technique was applied to the archaized buildings with traditional culture in this paper.Two finite element models(with and without isolation)were established by numerical simulation,then the dynamic time history analysis was carried out on the models before and after reinforcement.The displacement and acceleration time history curves of the two models under seismic waves with different frequency spectra were compared and analyzed.The results showed that the seismic response of the structure is obviously reduced by using the seismic isolation technology,and the seismic capacity is significantly improved.The reinforcement cost can be saved and the construction is convenient bu using the proposed method,so it can be used as a reference for similar projects.