新型摩擦滑移隔震模型地震反应分析

Seismic response analysis of a new friction sliding model

采用新型固体摩擦滑移材料二硫化钼作为涂层材料,提出了一种应用于框架结构既能隔震又能消能的新型分离式摩擦滑移隔震系统.设计制作了1个相似比为1/5的5层钢筋混凝土框架隔震试验模型结构,同时采用ANSYS有限元分析软件,建立了该试验模型结构的有限元分析模型,进行了不同试验工况下模型结构的地震响应分析.研究结果表明,安装新型摩擦滑移隔震装置后,上部结构的地震响应基本为平动,加速度、层间相对位移、楼层地震剪力等显著减小,说明文中采用新型固体摩擦滑移材料二硫化钼作为涂层材料的新型摩擦滑移隔震装置能够明显地降低框架结构的地震响应,隔震效果明显.另外,只要确定合理的构造以及实施方案,这种装置能够满足框架结构的隔震减震要求,应用实际工程结构.

Using a new solid friction-sliding material-molybdenum disulfide as coating material,this paper proposes a framework applied to the structure to isolation and energy dissipation of new separate friction-sliding isolation system.A similar ratio of 1/5 of the five layer isolation test model of reinforced concrete frame structure is designed.At the same time,the using ANSYS finite element analysis software is used in establishing the finite element analysis model of the structure of the test model,and analyzing the model of seismic response of the structure under different conditions.The research results show that with the new friction-sliding isolation device,the seismic response of the upper structure,acceleration,the relative displacement between the layers,and the floor seismic shear force all decreased.The new solid friction-sliding materials molybdenum disulfide as coating material of new friction-sliding isolation device as adopted in this paper can significantly reduce the seismic response of the frame structure,producing obvious vibration isolation effect.In addition,with the reasonable structure and implementation plan,the device could satisfy the requirement of the frame structure isolation vibration in practical engineering structure.