Experimental Study on Three-Dimensional Base-Isolated Model with 3DIB

Ya Min Zhao; Jing Yu Su; Ming Lu

doi:10.4028/www.scientific.net/AMR.255-260.2325

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 255-260Experimental Study on Three-Dimensional...

Experimental Study on Three-Dimensional Base-Isolated Model with 3DIB

Abstract:

A new 3-dimensional isolation bearing (3DIB), which is combined with lead rubber bearing (LRB) and disk spring bearing (DSB), is introduced in this paper. A series of shaking table tests of the 1/2 scale fixed-base and 3DIB base-isolated model were compared to confirm the validity of the 3DIB. Results show that the 3DIB can isolate 3-dimensional earthquake energy remarkably. Large displacement of the 3DIB base-isolated system occurred on the isolation layer, and the inter-story deformation of the superstructure changed slightly. The horizontal acceleration responses of 3DIB model decreased more than 60% and the vertical acceleration responses decreased more than 50% under the severe earthquake of 0.4g in PGA input, which confirmed that 3DIB could isolate both the horizontal and vertical earthquakes obviously.

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Periodical:

Advanced Materials Research (Volumes 255-260)

Pages:

2325-2329

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.255-260.2325

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Online since:

May 2011

Authors:

Ya Min Zhao, Jing Yu Su, Ming Lu

Keywords:

Horizontal Isolation, Seismic Response, Shaking Table Test, Vertical Isolation

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