Seismic Response of Resilient Bridges with SMA-Based Rocking ECC-Reinforced Piers

Post-earthquake investigation shows that numerous reinforced concrete (RC) bridges were demolished because of large residual displacements. Improving the self-centering capability and hence resilience of these bridges located in earthquake-prone regions is essential. In this regard, a resilient brid...

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Autores principales:	Xiaogang Li, Ke Chen, Ji Chen, Yi Li, Dong Yang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	seismic analysis rocking pier shape memory alloy ECC material bridge engineering Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/d6b81f81c3554605b00dc17e3fb47d84
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spelling	oai:doaj.org-article:d6b81f81c3554605b00dc17e3fb47d842021-11-11T18:04:37ZSeismic Response of Resilient Bridges with SMA-Based Rocking ECC-Reinforced Piers10.3390/ma142165001996-1944https://doaj.org/article/d6b81f81c3554605b00dc17e3fb47d842021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6500https://doaj.org/toc/1996-1944Post-earthquake investigation shows that numerous reinforced concrete (RC) bridges were demolished because of large residual displacements. Improving the self-centering capability and hence resilience of these bridges located in earthquake-prone regions is essential. In this regard, a resilient bridge system incorporating engineered cementitious composites (ECC) reinforced piers and shape memory alloy (SMA) energy dissipation components, i.e., SMA washers, is proposed to enhance its resilience when subjected to strong earthquakes. This study commences with a detailed introduction of the resilient SMA-washer-based rocking bridge system with ECC-reinforced piers. Subsequently, a constitutive model of the ECC material is implemented into OpenSees and the constitutive model is validated by test data. The working principle and constitutive model of the SMA washers are also introduced. A series of dynamic analysis on the conventional and resilient rocking bridge systems with ECC-reinforced piers under a suite of ground motions at E1 and E2 earthquake levels are conducted. The analysis results indicate that the resilient rocking bridge system with ECC-reinforced piers has superior resilience and damage control capacities over the conventional one.Xiaogang LiKe ChenJi ChenYi LiDong YangMDPI AGarticleseismic analysisrocking piershape memory alloyECC materialbridge engineeringTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6500, p 6500 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	seismic analysis rocking pier shape memory alloy ECC material bridge engineering Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	seismic analysis rocking pier shape memory alloy ECC material bridge engineering Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Xiaogang Li Ke Chen Ji Chen Yi Li Dong Yang Seismic Response of Resilient Bridges with SMA-Based Rocking ECC-Reinforced Piers
description	Post-earthquake investigation shows that numerous reinforced concrete (RC) bridges were demolished because of large residual displacements. Improving the self-centering capability and hence resilience of these bridges located in earthquake-prone regions is essential. In this regard, a resilient bridge system incorporating engineered cementitious composites (ECC) reinforced piers and shape memory alloy (SMA) energy dissipation components, i.e., SMA washers, is proposed to enhance its resilience when subjected to strong earthquakes. This study commences with a detailed introduction of the resilient SMA-washer-based rocking bridge system with ECC-reinforced piers. Subsequently, a constitutive model of the ECC material is implemented into OpenSees and the constitutive model is validated by test data. The working principle and constitutive model of the SMA washers are also introduced. A series of dynamic analysis on the conventional and resilient rocking bridge systems with ECC-reinforced piers under a suite of ground motions at E1 and E2 earthquake levels are conducted. The analysis results indicate that the resilient rocking bridge system with ECC-reinforced piers has superior resilience and damage control capacities over the conventional one.
format	article
author	Xiaogang Li Ke Chen Ji Chen Yi Li Dong Yang
author_facet	Xiaogang Li Ke Chen Ji Chen Yi Li Dong Yang
author_sort	Xiaogang Li
title	Seismic Response of Resilient Bridges with SMA-Based Rocking ECC-Reinforced Piers
title_short	Seismic Response of Resilient Bridges with SMA-Based Rocking ECC-Reinforced Piers
title_full	Seismic Response of Resilient Bridges with SMA-Based Rocking ECC-Reinforced Piers
title_fullStr	Seismic Response of Resilient Bridges with SMA-Based Rocking ECC-Reinforced Piers
title_full_unstemmed	Seismic Response of Resilient Bridges with SMA-Based Rocking ECC-Reinforced Piers
title_sort	seismic response of resilient bridges with sma-based rocking ecc-reinforced piers
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d6b81f81c3554605b00dc17e3fb47d84
work_keys_str_mv	AT xiaogangli seismicresponseofresilientbridgeswithsmabasedrockingeccreinforcedpiers AT kechen seismicresponseofresilientbridgeswithsmabasedrockingeccreinforcedpiers AT jichen seismicresponseofresilientbridgeswithsmabasedrockingeccreinforcedpiers AT yili seismicresponseofresilientbridgeswithsmabasedrockingeccreinforcedpiers AT dongyang seismicresponseofresilientbridgeswithsmabasedrockingeccreinforcedpiers
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Seismic Response of Resilient Bridges with SMA-Based Rocking ECC-Reinforced Piers

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