摘要
利用形状记忆合金(SMA)的超弹性滞回耗能特性,根据古塔的受力和主要灾变特点设计提出一种适合古塔的新型SMA阻尼器,通过试验得出该阻尼器的双线性恢复力模型。探讨了基于该新型SMA阻尼器对古塔进行抗震加固的被动控制系统的设计方法,编制了该阻尼器在地震下的弹塑性分析程序,采用该程序,分析了该阻尼器的设计参数对古塔结构非线性地震反应减震效果的影响,为SMA阻尼器被动控制系统在古塔等类似古建筑结构中的实际应用和设计提供借鉴。
Shape memory alloy （SMA） has super-elastic hysteresis behavior. Recognizing this, a new type SMA damper which is fit for ancient tower is proposed. The bi-linear restoring force model of the new type SMA damper is determined by experiment. Seismic response of ancient tower with the new type SMA damper under earthquake is calculated by using a program written by the authors for calculating the nonlinear responses of ancient tower. The influence of SMA damper on the reduction effectiveness is studied through numerical examples. Propose reference of application and design in SMA damper passive control system using in ancient tower and similarly ancient architectures.
出处
《四川建筑科学研究》
2012年第3期188-192,共5页
Sichuan Building Science
基金
教育部工程抗震减震与结构安全重点实验室开放基金(200905)
