Vibration and Seismic Isolation Design for Builidings on Subway Platform

Abstract eng:
This paper introduces the research and application of a three-dimensional (3D) isolation technique for house buildings in Peking, China, which directly built on an existing subway communication hub platform required development of a very effective vibration and seismic isolation system. First, the authors investigate an innovative 3D isolator, which is composed of connecting plate, vertical rubber pad for vibration isolation and the horizontal rubber bearing for seismic isolation. Secondly, this paper presents the design of a building adopted the 3D isolation system in details. Finally, the in situ tests both of the isolated and the non-isolated buildings are carried out. Results from the tests show that the maximum response acceleration of the isolated superstructure reduced ten times as compared to the platform and the maximum attenuation of vibration attend to 25dB. The 3D system explored in this paper is very effective in vibration reduction.

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