Advances in Shape Memory Alloy-Based Reinforcement in Steel Structures: A Review

The utilization of shape memory alloys (SMAs) to reinforce steel structures has been proven to be an efficient and reliable method, the structural strengthening needs can be met without the need for tensioning equipment by activating the SMAs to generate restoring stresses. This paper firstly introd...

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Main Authors: Chenxi Shao, Yonghui Huang
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Buildings
Subjects:
Online Access:https://www.mdpi.com/2075-5309/13/11/2760
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author Chenxi Shao
Yonghui Huang
author_facet Chenxi Shao
Yonghui Huang
author_sort Chenxi Shao
collection DOAJ
description The utilization of shape memory alloys (SMAs) to reinforce steel structures has been proven to be an efficient and reliable method, the structural strengthening needs can be met without the need for tensioning equipment by activating the SMAs to generate restoring stresses. This paper firstly introduces the properties of SMA, and then presents the latest research progress, opportunities and challenges of SMA in the field of steel structural reinforcement, both in terms of basic components and applications. In terms of components, the construction forms and working mechanisms of Fe-SMA strips, SMA/CFRP composite patches and SMA dampers are introduced. On this basis, the application of SMA in steel structures reinforcement is introduced, and its effect is analyzed from three aspects: crack restoration, seismic retrofitting and structural strengthening. Finally, the results of the current research are summarized and the shortcomings are analyzed, hoping to provide a reference for the research of SMA in the field of steel structures reinforcement.
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spelling doaj.art-e36dea676f214758a6f62dbb60c0c9f82023-11-24T14:33:16ZengMDPI AGBuildings2075-53092023-11-011311276010.3390/buildings13112760Advances in Shape Memory Alloy-Based Reinforcement in Steel Structures: A ReviewChenxi Shao0Yonghui Huang1Research Center of Wind Engineering and Engineering Vibration, Guangzhou University, Guangzhou 510006, ChinaResearch Center of Wind Engineering and Engineering Vibration, Guangzhou University, Guangzhou 510006, ChinaThe utilization of shape memory alloys (SMAs) to reinforce steel structures has been proven to be an efficient and reliable method, the structural strengthening needs can be met without the need for tensioning equipment by activating the SMAs to generate restoring stresses. This paper firstly introduces the properties of SMA, and then presents the latest research progress, opportunities and challenges of SMA in the field of steel structural reinforcement, both in terms of basic components and applications. In terms of components, the construction forms and working mechanisms of Fe-SMA strips, SMA/CFRP composite patches and SMA dampers are introduced. On this basis, the application of SMA in steel structures reinforcement is introduced, and its effect is analyzed from three aspects: crack restoration, seismic retrofitting and structural strengthening. Finally, the results of the current research are summarized and the shortcomings are analyzed, hoping to provide a reference for the research of SMA in the field of steel structures reinforcement.https://www.mdpi.com/2075-5309/13/11/2760steel structureshape memory alloy (SMA)shape memory effectmechanical propertiesstructure reinforcement
spellingShingle Chenxi Shao
Yonghui Huang
Advances in Shape Memory Alloy-Based Reinforcement in Steel Structures: A Review
Buildings
steel structure
shape memory alloy (SMA)
shape memory effect
mechanical properties
structure reinforcement
title Advances in Shape Memory Alloy-Based Reinforcement in Steel Structures: A Review
title_full Advances in Shape Memory Alloy-Based Reinforcement in Steel Structures: A Review
title_fullStr Advances in Shape Memory Alloy-Based Reinforcement in Steel Structures: A Review
title_full_unstemmed Advances in Shape Memory Alloy-Based Reinforcement in Steel Structures: A Review
title_short Advances in Shape Memory Alloy-Based Reinforcement in Steel Structures: A Review
title_sort advances in shape memory alloy based reinforcement in steel structures a review
topic steel structure
shape memory alloy (SMA)
shape memory effect
mechanical properties
structure reinforcement
url https://www.mdpi.com/2075-5309/13/11/2760
work_keys_str_mv AT chenxishao advancesinshapememoryalloybasedreinforcementinsteelstructuresareview
AT yonghuihuang advancesinshapememoryalloybasedreinforcementinsteelstructuresareview