Analysis on the Energy Dissipation of the Composite Isolated Structure under the Near-Field Multi Pulse Ground Motion

Abstract:

In this paper, the near-field multi pulse earthquake wave is generated by means of combining the velocity pulse component and the broad-band component based on studying the characteristics of the near-field ground motion.. Then, have made a numerical analysis on the composite isolated structure’s dynamic response as well as a quantitative analysis towards its energy dissipation with the help of the energy equation. Study shows, by comprehensively making good use of the energy dissipation characteristic of the laminated rubber bearing and the viscous damper, the viscous damper can perfectly find its way of taking its energy dissipation advantage, thus , to reduce the displacement of the isolation layer, and then improve the force state of the structure , accordingly decrease the damage to the upper structure. All in all, it has made a great contribution to improving the security of the structure under the near-field multi pulse earthquake.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 2850-2854
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.2850
• Online since: October 2012
• Authors: Hui Li, Di Liu, Yong Feng Du
• Keywords: Composite Isolated Structure, Near-Field Multi Pulse Ground Motion, Viscous Damper

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