摘要
提出了一种新型钢筋混凝土摩擦阻尼器的构造和工作原理。在实验室建立了一个两层复合隔震的钢框架模型,该模型采用了新型钢筋混凝土摩擦阻尼器和隔震墩并联作为隔震层。通过对多种工况下的钢框架模型进行振动台激振试验,分析对比试验数据,研究该新型钢筋混凝土摩擦阻尼器-隔震墩并联复合隔震层在不同预紧力和不同加速度幅值输入时的动力特性及减震效果。本试验结果表明,新型钢筋混凝土摩擦阻尼器具有优秀的耗能减震性能。新型钢筋混凝土摩擦阻尼器-隔震墩并联复合隔震技术是一种减震效果明显,廉价实用,极具前景的新型隔震技术。
In this paper, the construction and operating principle of the new-type reinforced concrete friction damper are put forward. A two-layer steel frame model, which is used to test the effectiveness of composite isolation has been buih in the laboratory. As to the model, the combination of the new-type reinforced concrete friction damper and isolation pier is adopted to work as isolation layer. By comparing the test data, which are obtained from the excitation tests of the shaking table under multiple working condition, the dynamic characteristics and damping effects of the new-type parallel composite isolation layer with different pretightening forces and different acceleration input amplitudes are discreetly studied. The test results show that the new-type reinforced concrete friction damper pres- ents excellent properties of energy disspation and vibration reduction. The technology of combining new-type reinforced concrete friction damper and isolation pier in parallel is a new seismic isolation technique, which is at a low price but of remarkable effect, technical practicability and further foreground.
出处
《地震工程与工程振动》
CSCD
北大核心
2015年第3期67-72,共6页
Earthquake Engineering and Engineering Dynamics
基金
国家自然科学基金项目(60678062)
"十一五"科技支撑计划重大项目(2006BAJ03A10-06)
湖南省科技计划重点项目(06sk4057)
关键词
摩擦阻尼器
隔震墩
振动台试验
复合隔震
friction damper
isolation pier
shaking table test
composite isolation
