摘要
对层间隔震技术在既有建筑结构抗震加层加固中的应用进行了探讨。采用在双线性模型模拟隔震支座,通过参数化研究得到了隔震支座优化参数。对某工程加层后与未加层的地震响应进行了比较,结果表明,不同地震波作用下隔震支座的优化参数基本一致,增层隔震技术类似于TMD系统,但因子结构质量较大,能够起到更好的耗能减震效果,可有效削弱原结构的水平地震响应。
The application of story isolation technology on sei sm ic retrofitting and adding story for existing buildings is discussed.The rubber bearing is represented by bilinear model,and the optimal parameters of rubber bearing are achieved by parametric study.Seismic responses of a certain buildin g in the presence and absence of adding story are compared.The optimal paramete rs are consistent with each other while structure subjected to different earthqu ake records.The behavior of adding story isolation system is similar to the tun ed mass damper system,but the mass of the former is larger to obtain better ene rgy dissipation performance.The seismic response of original structure could be mitigated effectively.
出处
《土木工程与管理学报》
2011年第3期1-4,共4页
Journal of Civil Engineering and Management
关键词
层间隔震
抗震加固
双线性
橡胶支座
middle story isolation
seismic retrofit
bi linear model
rubber bearing
