Crashworthiness design of GFRP bar reinforced concrete bridge pier subjected to truck collision
This study investigates the failure behavior and post-impact damage of glass fiber reinforced polymer (GFRP) bar reinforced bridge pier under truck collision. The finite element model of a benchmark bridge with its pier reinforced with GFRP bars collided by a medium truck is established using LS-DYN...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-07-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509523003856 |
| _version_ | 1797798905595822080 |
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| author | Chang Zhou Wenwei Wang Yuzhou Zheng Yi Cheng Zenghan Wu |
| author_facet | Chang Zhou Wenwei Wang Yuzhou Zheng Yi Cheng Zenghan Wu |
| author_sort | Chang Zhou |
| collection | DOAJ |
| description | This study investigates the failure behavior and post-impact damage of glass fiber reinforced polymer (GFRP) bar reinforced bridge pier under truck collision. The finite element model of a benchmark bridge with its pier reinforced with GFRP bars collided by a medium truck is established using LS-DYNA. The effectiveness of adopted material models and contact algorithm is verified by comparing the experimental and numerical observations of scaled GFRP reinforced concrete columns under horizontal impact loading. The failure analysis results show that the post-impact damage of the composite pier can be classified into four levels, and the shear force at pier bottom is a reasonable index that can represent the dynamic shear capacity of the composite pier. Besides, the influence of design variables on the dynamic shear capacity of the bridge pier is clarified, and a closed-form formula is proposed to predict the dynamic shear capacity based on response surface methodology. Furthermore, kinetic energy-based damage index and damage evaluation approach are developed to forecast the post-impact damage levels of the composite bridge pier. Finally, combining the post-impact performance objectives and damage evaluation approach, a performance-based crashworthiness design framework is developed and validated to provide a basic reference for design consideration of GFRP reinforced concrete bridge pier. |
| first_indexed | 2024-03-13T04:11:53Z |
| format | Article |
| id | doaj.art-c8b403ae6ecf44fdb76a5aff54d48079 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-03-13T04:11:53Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-c8b403ae6ecf44fdb76a5aff54d480792023-06-21T06:54:54ZengElsevierCase Studies in Construction Materials2214-50952023-07-0118e02205Crashworthiness design of GFRP bar reinforced concrete bridge pier subjected to truck collisionChang Zhou0Wenwei Wang1Yuzhou Zheng2Yi Cheng3Zenghan Wu4School of Transportation, Southeast University, Nanjing 211189, ChinaSchool of Transportation, Southeast University, Nanjing 211189, China; Corresponding authors.School of Field Engineering, Army Engineering University of PLA, Nanjing 210042, China; Corresponding authors.School of Transportation, Southeast University, Nanjing 211189, ChinaSchool of Transportation, Southeast University, Nanjing 211189, ChinaThis study investigates the failure behavior and post-impact damage of glass fiber reinforced polymer (GFRP) bar reinforced bridge pier under truck collision. The finite element model of a benchmark bridge with its pier reinforced with GFRP bars collided by a medium truck is established using LS-DYNA. The effectiveness of adopted material models and contact algorithm is verified by comparing the experimental and numerical observations of scaled GFRP reinforced concrete columns under horizontal impact loading. The failure analysis results show that the post-impact damage of the composite pier can be classified into four levels, and the shear force at pier bottom is a reasonable index that can represent the dynamic shear capacity of the composite pier. Besides, the influence of design variables on the dynamic shear capacity of the bridge pier is clarified, and a closed-form formula is proposed to predict the dynamic shear capacity based on response surface methodology. Furthermore, kinetic energy-based damage index and damage evaluation approach are developed to forecast the post-impact damage levels of the composite bridge pier. Finally, combining the post-impact performance objectives and damage evaluation approach, a performance-based crashworthiness design framework is developed and validated to provide a basic reference for design consideration of GFRP reinforced concrete bridge pier.http://www.sciencedirect.com/science/article/pii/S2214509523003856Glass fiber reinforced polymer (GFRP)Truck-bridge collisionDynamic shear capacityDamage evaluation methodCrashworthiness design |
| spellingShingle | Chang Zhou Wenwei Wang Yuzhou Zheng Yi Cheng Zenghan Wu Crashworthiness design of GFRP bar reinforced concrete bridge pier subjected to truck collision Case Studies in Construction Materials Glass fiber reinforced polymer (GFRP) Truck-bridge collision Dynamic shear capacity Damage evaluation method Crashworthiness design |
| title | Crashworthiness design of GFRP bar reinforced concrete bridge pier subjected to truck collision |
| title_full | Crashworthiness design of GFRP bar reinforced concrete bridge pier subjected to truck collision |
| title_fullStr | Crashworthiness design of GFRP bar reinforced concrete bridge pier subjected to truck collision |
| title_full_unstemmed | Crashworthiness design of GFRP bar reinforced concrete bridge pier subjected to truck collision |
| title_short | Crashworthiness design of GFRP bar reinforced concrete bridge pier subjected to truck collision |
| title_sort | crashworthiness design of gfrp bar reinforced concrete bridge pier subjected to truck collision |
| topic | Glass fiber reinforced polymer (GFRP) Truck-bridge collision Dynamic shear capacity Damage evaluation method Crashworthiness design |
| url | http://www.sciencedirect.com/science/article/pii/S2214509523003856 |
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