Analysis on Influencing Factors of the Moment that Slider Begins to Slide for Sliding Base-Isolated System

Abstract:

The moment that isolation layer slider begins to slide has great effects on the whole system characteristics for sliding base-isolated system,and the moment plays a crucial role for the analysis of system energy and the confirmation of energy spectrum.Change rules of the moment that isolation layer slider begins to slide under the influence of the acting parameters and system’s design parameters,Taking two particle of plain sliding base-isolated system of building structure under harmonic excitation as the research object,are studied by using the numerical analysis method.The results show that the moment will be delayed if the friction coefficient of isolation layer or the natural vibration period of superstructure will be increased,and the moment will be advanced under the condition that the damping ratio of superstructure or external excitation which is exerted on structure being increased,while the mass ratio of isolation layer slider and superstructure has a very complex effect on the moment that isolation layer slider begins to slide,and the influence law relates to friction coefficient.

• Periodical: Applied Mechanics and Materials (Volumes 166-169)
• Pages: 2713-2717
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.166-169.2713
• Online since: May 2012
• Authors: Min Sun, Yu Guo Zhang, Yong Niu
• Keywords: Acting Parameters, Design Parameter, External Excitation, Moment that Slider Begins to Slide, Sliding Base-Isolated System

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