Reduction of local damages in precast post-tensioned segmental bridge piers
Reduction of local damages in precast post-tensioned segmental bridge piers
The application of precast post-tensioned segmental (PPS) bridge piers is growing in order to reduce global damages through rocking motion of the segments when subject to lateral excitations. However, local damages still exist in form of concrete spalling and crushing at the compression zones when one segment rocks on top of the underlying segment. Hence, this work will address reduction of these local damages in PPS piers through confinement of concrete segments by glass-fibre reinforced polymer (GFRP) tubes and use of elastic layers between segments at the joints. To achieve this goal, a robust Finite Element (FE) model is first developed in ABAQUS software, and is experimentally validated using the existing literature. The cyclic behaviour of the experimentally-validated FE model is then determined. It was found that the GFRP tubes and elastic layers significantly reduce local damages of PPS piers at the joints.
Cyclic loading, Elastic layer, Finite element model, Glass-fibre reinforced polymer, Precast post-tensioned segmental piers
Ahmadi, Parya
25053bf3-b35e-43d8-9793-121bb1b39727
Ahmadi, Ehsan
f1994ae0-2b3e-43c9-a595-032e801aae70
Kashani, Mohammad M.
d1074b3a-5853-4eb5-a4ef-7d741b1c025d
28 June 2021
Ahmadi, Parya
25053bf3-b35e-43d8-9793-121bb1b39727
Ahmadi, Ehsan
f1994ae0-2b3e-43c9-a595-032e801aae70
Kashani, Mohammad M.
d1074b3a-5853-4eb5-a4ef-7d741b1c025d
Ahmadi, Parya, Ahmadi, Ehsan and Kashani, Mohammad M.
(2021)
Reduction of local damages in precast post-tensioned segmental bridge piers.
8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2021, , Athens, Greece.
27 - 29 Jun 2021.
1 pp
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
The application of precast post-tensioned segmental (PPS) bridge piers is growing in order to reduce global damages through rocking motion of the segments when subject to lateral excitations. However, local damages still exist in form of concrete spalling and crushing at the compression zones when one segment rocks on top of the underlying segment. Hence, this work will address reduction of these local damages in PPS piers through confinement of concrete segments by glass-fibre reinforced polymer (GFRP) tubes and use of elastic layers between segments at the joints. To achieve this goal, a robust Finite Element (FE) model is first developed in ABAQUS software, and is experimentally validated using the existing literature. The cyclic behaviour of the experimentally-validated FE model is then determined. It was found that the GFRP tubes and elastic layers significantly reduce local damages of PPS piers at the joints.
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Published date: 28 June 2021
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© 2021 COMPDYN Proceedings.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
Venue - Dates:
8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2021, , Athens, Greece, 2021-06-27 - 2021-06-29
Keywords:
Cyclic loading, Elastic layer, Finite element model, Glass-fibre reinforced polymer, Precast post-tensioned segmental piers
Identifiers
Local EPrints ID: 454459
URI: http://eprints.soton.ac.uk/id/eprint/454459
PURE UUID: 56ad7791-f8a8-401a-a257-de17b2646aa3
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Date deposited: 10 Feb 2022 17:32
Last modified: 28 Apr 2022 02:19
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Author:
Parya Ahmadi
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