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author:

Fu, Ruihuan (Fu, Ruihuan.) [1] | Briseghella, Bruno (Briseghella, Bruno.) [2] (Scholars:BRUNO BRISEGHLLA) | Xue, Junqing (Xue, Junqing.) [3] (Scholars:薛俊青) | Aloisio, Angelo (Aloisio, Angelo.) [4] | Nuti, Camillo (Nuti, Camillo.) [5]

Indexed by:

EI

Abstract:

The expansion joints and bearings can be eliminated in integral abutment bridges (IABs) to fundamentally resolve their durability problems. The pile beneath the abutment is considered as the most vulnerable component of IABs under earthquake. The seismic response of the pile in IABs could be reduced by using the pile with pre-hole filled by damping material (called pre-hole isolation pile). In this paper, a finite element model of shaking table tests on the pre-hole isolation pile-soil system under sine wave load was established by using ABAQUS/Explicit. The influence of the input wave's frequency and the dimension of pre-hole on the dynamic pre-hole isolation pile-soil interaction was analyzed. It can be concluded that with an increase in the dimension of pre-hole, the fundamental frequency of pile-soil system decreased. When the input wave's frequency is less than 8 Hz, the pre-hole isolation pile is more flexible than the normal pile. When the input wave's frequency is 4 Hz, the pre-hole isolation pile with larger pre-hole diameter or depth shows the best seismic performance. However, when the input wave's frequency is 8 Hz, the best seismic performance of pre-hole isolation pile with smaller pre-hole diameter or depth is obtained. © IABSE Congress Nanjing 2022 - Bridges and Structures: Connection, Integration and Harmonisation, Report. All rights reserved.

Keyword:

ABAQUS Abutments (bridge) Finite element method Natural frequencies Piles Seismic waves Seismology Soils

Community:

  • [ 1 ] [Fu, Ruihuan]College of Civil Engineering, Fuzhou University, Fuzhou, China
  • [ 2 ] [Briseghella, Bruno]College of Civil Engineering, Fuzhou University, Fuzhou, China
  • [ 3 ] [Xue, Junqing]College of Civil Engineering, Fuzhou University, Fuzhou, China
  • [ 4 ] [Aloisio, Angelo]Civil and Environmental Engineering Department, Università degli Studi dell'Aquila, L'Aquila, Italy
  • [ 5 ] [Nuti, Camillo]Department of Architecture, Roma Tre University, Rome, Italy

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Year: 2022

Page: 1537-1544

Language: English

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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