Influence of Soil-Structure Interaction on the Seismic Response of a Continuous Bridge with Friction Pendulum System

A three-dimensional finite element analysis was carried out for the influence of soil-structure interaction (SSI) on the seismic response of an isolated continuous bridge with a friction pendulum system (FPS). SSI was modelled using the soil resistance vs deflection nonlinear springs (following p-y...

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Main Authors: Bing Li, Chong Fu, Guolong Liu, Wei Wei, Junfa Duan, Bin Wang
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2022/7046036
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author Bing Li
Chong Fu
Guolong Liu
Wei Wei
Junfa Duan
Bin Wang
author_facet Bing Li
Chong Fu
Guolong Liu
Wei Wei
Junfa Duan
Bin Wang
author_sort Bing Li
collection DOAJ
description A three-dimensional finite element analysis was carried out for the influence of soil-structure interaction (SSI) on the seismic response of an isolated continuous bridge with a friction pendulum system (FPS). SSI was modelled using the soil resistance vs deflection nonlinear springs (following p-y curves). The influence of SSI on the dynamic behaviour and the seismic response of isolated bridges with different friction coefficients of FPS were investigated using six measured ground motions. Results show that the effect of SSI is limited on the isolation period of the bridge, but significant on the response amplitude of the bridge structures, and particularly on the response amplitude at the pier top and bottom. The displacement and acceleration at the pier top are underestimated, while the shear force and bending moment at the pier bottom are overestimated if the SSI effects are ignored, which suggests that SSI should be considered in the seismic analyses of continuous bridges.
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issn 1875-9203
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publishDate 2022-01-01
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series Shock and Vibration
spelling doaj-art-433a3a38bd0c4ade83cd2c9ce89aa0c82025-02-03T06:05:49ZengWileyShock and Vibration1875-92032022-01-01202210.1155/2022/7046036Influence of Soil-Structure Interaction on the Seismic Response of a Continuous Bridge with Friction Pendulum SystemBing Li0Chong Fu1Guolong Liu2Wei Wei3Junfa Duan4Bin Wang5School of Mechanical EngineeringHenan Institute of MetrologySchool of Mechanical EngineeringSchool of Mechanical EngineeringSchool of Mechanical EngineeringDepartment of Mechanical and Aerospace EngineeringA three-dimensional finite element analysis was carried out for the influence of soil-structure interaction (SSI) on the seismic response of an isolated continuous bridge with a friction pendulum system (FPS). SSI was modelled using the soil resistance vs deflection nonlinear springs (following p-y curves). The influence of SSI on the dynamic behaviour and the seismic response of isolated bridges with different friction coefficients of FPS were investigated using six measured ground motions. Results show that the effect of SSI is limited on the isolation period of the bridge, but significant on the response amplitude of the bridge structures, and particularly on the response amplitude at the pier top and bottom. The displacement and acceleration at the pier top are underestimated, while the shear force and bending moment at the pier bottom are overestimated if the SSI effects are ignored, which suggests that SSI should be considered in the seismic analyses of continuous bridges.http://dx.doi.org/10.1155/2022/7046036
spellingShingle Bing Li
Chong Fu
Guolong Liu
Wei Wei
Junfa Duan
Bin Wang
Influence of Soil-Structure Interaction on the Seismic Response of a Continuous Bridge with Friction Pendulum System
Shock and Vibration
title Influence of Soil-Structure Interaction on the Seismic Response of a Continuous Bridge with Friction Pendulum System
title_full Influence of Soil-Structure Interaction on the Seismic Response of a Continuous Bridge with Friction Pendulum System
title_fullStr Influence of Soil-Structure Interaction on the Seismic Response of a Continuous Bridge with Friction Pendulum System
title_full_unstemmed Influence of Soil-Structure Interaction on the Seismic Response of a Continuous Bridge with Friction Pendulum System
title_short Influence of Soil-Structure Interaction on the Seismic Response of a Continuous Bridge with Friction Pendulum System
title_sort influence of soil structure interaction on the seismic response of a continuous bridge with friction pendulum system
url http://dx.doi.org/10.1155/2022/7046036
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