Shaking Table Test for Seismic Isolation Performance of Adjustable Height Seismic Isolation Rubber Bearing

To study the seismic isolation effect of adjustable height seismic isolation rubber bearing, a continuous girder bridge was subjected to a shaking table test study with full bridge scaling to compare the seismic isolation effects of plate rubber bearings, natural rubber bearings (LNR) and adjustable...

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Bibliographic Details
Published in:Journal of physics. Conference series 2023-04, Vol.2476 (1), p.12035
Main Authors: Wang, H, Lin, FJ, Xia, ZH, Shi, Y
Format: Article
Language:English
Subjects:
Bending moments
Bridge decks
Continuous bridges
Girder bridges
Natural rubber
Physics
Piers
Seismic isolation
Seismic Isolation Bearings
Seismic Response
Seismic Waves
Shake table tests
shaking table test
Shear forces
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Summary:To study the seismic isolation effect of adjustable height seismic isolation rubber bearing, a continuous girder bridge was subjected to a shaking table test study with full bridge scaling to compare the seismic isolation effects of plate rubber bearings, natural rubber bearings (LNR) and adjustable height seismic isolation rubber bearings under different types of seismic waves, loading directions and seismic intensities.The test results show that when the seismic intensity is small, the seismic isolation performance of the three types of bearings is relatively close. But when the seismic intensity is large, the seismic isolation effect of the adjustable height isolation bearing is better than that of the plate rubber bearing and LNR bearing. Adjustable height isolation rubber bearing can significantly reduce the acceleration of the bridge deck plate, shear force and bending moment in the bottom of piers.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2476/1/012035