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[期刊论文]

Seismic Characteristics of Integral Abutment Bridge with Rigid-Flexible Combined Abutment Based on Shaking Table Model Test

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author:

HY Huang (HY Huang.) [1] | L Li (L Li.) [2] | F Liu (F Liu.) [3] | Unfold

Abstract:

Aiming at the problem that the strong structure-soil interaction of rigid abutment integral bridge and semi-flexible abutment integral bridge, a new integral abutment bridge with rigid-flexible abutment was proposed, and the shaking table model test was carried out to study its seismic performance. The test result shows that at the seismic fortification intensity 6, the specimen are relatively intact, and no crack was generated, which shown the integral abutment bridge with rigid-flexible combined abutment has good seismic performance. The first-order and second-order frequency of integral abutment bridge with rigid-flexible combined abutment are about 5.0 Hz and 10 Hz, respectively. The damping ratio coefficient of rigid-flexible combined abutment-pile-soil system is about 0.18~0.25. The soil-rigid-flexible combined abutment-pile interaction amplified from 10.71 times the pile diameter above the bottom of the pile foundation. The maximum dynamic amplification factor of specimen and soil are located at the abutment bottom and the soil surface, respectively.

Keyword:

Integral Abutment Jointless Bridge Seismic Response Shaking Table Test Structure-Soil Interaction

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Source :

Journal of Physics:Conference Series

ISSN: 1742-6588

Year: 2023

Issue: 1

Volume: 2476

Cited Count:

WoS CC Cited Count:

30 Days PV: 1

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