某大型医院基于性能的消能减震设计研究

Performance based design and research of energy dissipation of a large-scale hospital

为了研究黏滞阻尼器的减震效果,确保医院作为重要生命线工程在地震灾害下的安全和正常使用,以某大型医院为工程背景,对安装黏滞阻尼器和未安装黏滞阻尼器的结构进行地震作用下的非线性时程对比分析。研究结果表明,黏滞阻尼器具有较好的耗能能力,可明显减小结构地震响应,使其结构满足性能要求。

In order to research damping effect of viscous damper, ensure safety and normal service of hospitals as essential lifeline engineering under earthquake disaster, this paper takes a large-scale hospital as engineering background, comparative nonlinear time history analysis was conducted to the structure with and without viscous damper. Results show that viscous damper has a better energy dissipation capacity, decreases seismic response to the structure significantly, and satisfies performance requirements.