Reinforcement Analysis of an Old Multi-Beam Box Girder Based on a New Embedded Steel Plate (ESP) Strengthening Method
Multi-beam box girder bridges have been applied widely throughout the world for many years. However, the cracking of longitudinal joints between the box girders always leads to reflective cracking of the bridge decks during the service period and thus finally affects the safety and durability of the...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/12/4353 |
| _version_ | 1797484796808527872 |
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| author | Yuliang He Kai Wang Zongyong Cao Peijuan Zheng Yiqiang Xiang |
| author_facet | Yuliang He Kai Wang Zongyong Cao Peijuan Zheng Yiqiang Xiang |
| author_sort | Yuliang He |
| collection | DOAJ |
| description | Multi-beam box girder bridges have been applied widely throughout the world for many years. However, the cracking of longitudinal joints between the box girders always leads to reflective cracking of the bridge decks during the service period and thus finally affects the safety and durability of the actual bridges. An embedded steel plate (ESP) strengthening method was presented by introducing carbon-A/-B glue to reinforce the longitudinal joints of old multi-beam box girder bridges for this problem. In order to evaluate the feasibility of the proposed method for actual bridges, an old multi-beam box girder bridge was reinforced, and structural parameters including strain, frequency, and deflection were obtained by adopting field tests before and after strengthening. In addition, the corresponding finite element (FE) model of the background bridge was also set up using ANASYS 18.0 to analyze the strengthening process. Analysis results of the actual bridge and FE model indicate that structural stiffness and load lateral transferring performance between the box girders were enhanced after ESP strengthening. Therefore, this proposed strengthening method can be used to improve the mechanical performance of multi-beam box girder bridges and provide reference for such bridge reinforcement. |
| first_indexed | 2024-03-09T23:09:37Z |
| format | Article |
| id | doaj.art-3d9cbc42d3514ecc9aa06d1d0602c819 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T23:09:37Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-3d9cbc42d3514ecc9aa06d1d0602c8192023-11-23T17:47:01ZengMDPI AGMaterials1996-19442022-06-011512435310.3390/ma15124353Reinforcement Analysis of an Old Multi-Beam Box Girder Based on a New Embedded Steel Plate (ESP) Strengthening MethodYuliang He0Kai Wang1Zongyong Cao2Peijuan Zheng3Yiqiang Xiang4College of Civil Engineering, Shaoxing University, 508 West Huangcheng Road, Shaoxing 312000, ChinaCollege of Civil Engineering, Shaoxing University, 508 West Huangcheng Road, Shaoxing 312000, ChinaHua Hui Group, Shaoxing University, 508 West Huangcheng Road, Shaoxing 312000, ChinaCollege of Civil Engineering, Shaoxing University, 508 West Huangcheng Road, Shaoxing 312000, ChinaCollege of Civil Engineering and Architecture, Zijingang Campus, Zhejiang University, Anzhong Building B718, Yuhangtang Road 866, Hangzhou 310058, ChinaMulti-beam box girder bridges have been applied widely throughout the world for many years. However, the cracking of longitudinal joints between the box girders always leads to reflective cracking of the bridge decks during the service period and thus finally affects the safety and durability of the actual bridges. An embedded steel plate (ESP) strengthening method was presented by introducing carbon-A/-B glue to reinforce the longitudinal joints of old multi-beam box girder bridges for this problem. In order to evaluate the feasibility of the proposed method for actual bridges, an old multi-beam box girder bridge was reinforced, and structural parameters including strain, frequency, and deflection were obtained by adopting field tests before and after strengthening. In addition, the corresponding finite element (FE) model of the background bridge was also set up using ANASYS 18.0 to analyze the strengthening process. Analysis results of the actual bridge and FE model indicate that structural stiffness and load lateral transferring performance between the box girders were enhanced after ESP strengthening. Therefore, this proposed strengthening method can be used to improve the mechanical performance of multi-beam box girder bridges and provide reference for such bridge reinforcement.https://www.mdpi.com/1996-1944/15/12/4353multi-beam box girder bridgeESP strengtheningfield testload lateral transferring performancestructural stiffness |
| spellingShingle | Yuliang He Kai Wang Zongyong Cao Peijuan Zheng Yiqiang Xiang Reinforcement Analysis of an Old Multi-Beam Box Girder Based on a New Embedded Steel Plate (ESP) Strengthening Method Materials multi-beam box girder bridge ESP strengthening field test load lateral transferring performance structural stiffness |
| title | Reinforcement Analysis of an Old Multi-Beam Box Girder Based on a New Embedded Steel Plate (ESP) Strengthening Method |
| title_full | Reinforcement Analysis of an Old Multi-Beam Box Girder Based on a New Embedded Steel Plate (ESP) Strengthening Method |
| title_fullStr | Reinforcement Analysis of an Old Multi-Beam Box Girder Based on a New Embedded Steel Plate (ESP) Strengthening Method |
| title_full_unstemmed | Reinforcement Analysis of an Old Multi-Beam Box Girder Based on a New Embedded Steel Plate (ESP) Strengthening Method |
| title_short | Reinforcement Analysis of an Old Multi-Beam Box Girder Based on a New Embedded Steel Plate (ESP) Strengthening Method |
| title_sort | reinforcement analysis of an old multi beam box girder based on a new embedded steel plate esp strengthening method |
| topic | multi-beam box girder bridge ESP strengthening field test load lateral transferring performance structural stiffness |
| url | https://www.mdpi.com/1996-1944/15/12/4353 |
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