摘要
本文讨论了在多层砖混结构中设置由滑动摩擦元件和限位、消能元件组合而成的基底隔震装置的可行性,先后对等效质点系模型及有、无隔震装置的两幢三层1/4大开间砖房模型进行了不同地震波的振动台对比试验。试验研究表明:采用本文建议的基底隔震装置显著降低了上部结构的的地震反应,使多层砖混结构的抗震性能获得显著改善。
In the paper,the feasibility of a base isolation system composed of sliding device and displacement restrictor and energy absorber device in the multistorey masonry structure is discussed.The experimental research for the equivalent lumped mass system and two threestorey 1/4 model with and without isolation system of the large-bay masonry building test on shaking table with different earthquake excitations is conducted.Tests show that the earthquake response of superstructure is reduced considerably due to this base isolation system.The aseismic behavior for the multistorey masonry structure is much improved.
基金
具有减震功能大开问住宅”研究课题的子项
关键词
砖混凝土
多层
结构
抗震
地震反应
multistorey structure/base isolation system
equivalent lumped masses system
model of masonry building
