Buckling Behavior of Non-Retrofitted and FRP-Retrofitted Steel CHS T-Joints
This paper aims to investigate the buckling behavior of circular hollow section (CHS) T-joints in retrofitted and non-retrofitted states under axial brace compressive loading. For this purpose, two types of analysis are carried out. The first one is evaluating the critical buckling load in various t...
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| Format: | Article |
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MDPI AG
2021-03-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/7/3098 |
| _version_ | 1797539412358201344 |
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| author | Amin Yazdi Maria Rashidi Mohammad Alembagheri Bijan Samali |
| author_facet | Amin Yazdi Maria Rashidi Mohammad Alembagheri Bijan Samali |
| author_sort | Amin Yazdi |
| collection | DOAJ |
| description | This paper aims to investigate the buckling behavior of circular hollow section (CHS) T-joints in retrofitted and non-retrofitted states under axial brace compressive loading. For this purpose, two types of analysis are carried out. The first one is evaluating the critical buckling load in various tubular joints, and the other one is investigating the post-buckling behavior after each buckling mode. More than 180 CHS T-joints with various normalized geometric properties were numerically modeled in non-retrofitted state to compute their governing buckling mode, i.e., chord ovalization, brace local, or global buckling. Then three joints with different buckling modes were selected to be retrofitted by fiber-reinforced polymer (FRP) patches to illustrate the improving effect of the FRP wrapping on the post-buckling performance of the retrofitted joints. In addition, FRP composite failures were investigated. The results indicate that the FRP retrofitting is able to prevent the brace local buckling, and that matrix failure is the most common composite failure in the retrofitted joints. |
| first_indexed | 2024-03-10T12:45:41Z |
| format | Article |
| id | doaj.art-956e98c8f2444f5fabd9c1c5dd8a9501 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T12:45:41Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
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| spelling | doaj.art-956e98c8f2444f5fabd9c1c5dd8a95012023-11-21T13:33:15ZengMDPI AGApplied Sciences2076-34172021-03-01117309810.3390/app11073098Buckling Behavior of Non-Retrofitted and FRP-Retrofitted Steel CHS T-JointsAmin Yazdi0Maria Rashidi1Mohammad Alembagheri2Bijan Samali3Department of Civil and Environmental Engineering, Amirkabir University of Technology, Tehran 131565, IranCentre for Infrastructure Engineering, School of Engineering, Western Sydney University, Sydney 2751, AustraliaCentre for Infrastructure Engineering, School of Engineering, Western Sydney University, Sydney 2751, AustraliaCentre for Infrastructure Engineering, School of Engineering, Western Sydney University, Sydney 2751, AustraliaThis paper aims to investigate the buckling behavior of circular hollow section (CHS) T-joints in retrofitted and non-retrofitted states under axial brace compressive loading. For this purpose, two types of analysis are carried out. The first one is evaluating the critical buckling load in various tubular joints, and the other one is investigating the post-buckling behavior after each buckling mode. More than 180 CHS T-joints with various normalized geometric properties were numerically modeled in non-retrofitted state to compute their governing buckling mode, i.e., chord ovalization, brace local, or global buckling. Then three joints with different buckling modes were selected to be retrofitted by fiber-reinforced polymer (FRP) patches to illustrate the improving effect of the FRP wrapping on the post-buckling performance of the retrofitted joints. In addition, FRP composite failures were investigated. The results indicate that the FRP retrofitting is able to prevent the brace local buckling, and that matrix failure is the most common composite failure in the retrofitted joints.https://www.mdpi.com/2076-3417/11/7/3098CHS T-jointsbuckling modeFRP retrofitcritical buckling loadaxial compression |
| spellingShingle | Amin Yazdi Maria Rashidi Mohammad Alembagheri Bijan Samali Buckling Behavior of Non-Retrofitted and FRP-Retrofitted Steel CHS T-Joints Applied Sciences CHS T-joints buckling mode FRP retrofit critical buckling load axial compression |
| title | Buckling Behavior of Non-Retrofitted and FRP-Retrofitted Steel CHS T-Joints |
| title_full | Buckling Behavior of Non-Retrofitted and FRP-Retrofitted Steel CHS T-Joints |
| title_fullStr | Buckling Behavior of Non-Retrofitted and FRP-Retrofitted Steel CHS T-Joints |
| title_full_unstemmed | Buckling Behavior of Non-Retrofitted and FRP-Retrofitted Steel CHS T-Joints |
| title_short | Buckling Behavior of Non-Retrofitted and FRP-Retrofitted Steel CHS T-Joints |
| title_sort | buckling behavior of non retrofitted and frp retrofitted steel chs t joints |
| topic | CHS T-joints buckling mode FRP retrofit critical buckling load axial compression |
| url | https://www.mdpi.com/2076-3417/11/7/3098 |
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