Effect of High-Temperature Pavement Paving on Fatigue Durability of Bearing-Supported Steel Decks
Orthotropic steel deck (OSD) is a better choice for urban bridges and the replacement of damaged concrete slabs. Gussasphalt concrete (GAC) is usually adopted as the asphalt surfacing; however, the paving temperature of GAC is high, which will affect the fatigue durability of fatigable welds in OSD....
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/20/7196 |
| _version_ | 1797550841157124096 |
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| author | Qiudong Wang Bohai Ji Zhongqiu Fu Hao Wang |
| author_facet | Qiudong Wang Bohai Ji Zhongqiu Fu Hao Wang |
| author_sort | Qiudong Wang |
| collection | DOAJ |
| description | Orthotropic steel deck (OSD) is a better choice for urban bridges and the replacement of damaged concrete slabs. Gussasphalt concrete (GAC) is usually adopted as the asphalt surfacing; however, the paving temperature of GAC is high, which will affect the fatigue durability of fatigable welds in OSD. In this study, such influence of high-temperature pavement paving was comprehensively investigated based on in-situ monitoring and numerical analysis. The temperature of OSD and displacement of bearings were investigated based on the monitored data and numerical results. After that, the deformation and residual temperature stress of OSD during the paving process were analyzed. On this basis, the effect of residual temperature stress on fatigue damage accumulation of OSD was investigated and discussed. Results show that the uplift and expanded deformation of OSD arise during the paving process, leading to the displacement of bearings. Residual displacement of bearings, as well as the residual temperature stress at fatigable details of OSD, is observed. The residual temperature stress has considerable effect on fatigue damage accumulation at rib-deck weld. A fatigue damage amplification factor of 1.1 is recommended for taking into consideration of the adverse effect of high-temperature pavement paving. |
| first_indexed | 2024-03-10T15:36:07Z |
| format | Article |
| id | doaj.art-15d10ed1c6374e278e5390ddd9b3950f |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T15:36:07Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-15d10ed1c6374e278e5390ddd9b3950f2023-11-20T17:13:24ZengMDPI AGApplied Sciences2076-34172020-10-011020719610.3390/app10207196Effect of High-Temperature Pavement Paving on Fatigue Durability of Bearing-Supported Steel DecksQiudong Wang0Bohai Ji1Zhongqiu Fu2Hao Wang3College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, ChinaCollege of Civil and Transportation Engineering, Hohai University, Nanjing 210098, ChinaCollege of Civil and Transportation Engineering, Hohai University, Nanjing 210098, ChinaCollege of Civil and Transportation Engineering, Hohai University, Nanjing 210098, ChinaOrthotropic steel deck (OSD) is a better choice for urban bridges and the replacement of damaged concrete slabs. Gussasphalt concrete (GAC) is usually adopted as the asphalt surfacing; however, the paving temperature of GAC is high, which will affect the fatigue durability of fatigable welds in OSD. In this study, such influence of high-temperature pavement paving was comprehensively investigated based on in-situ monitoring and numerical analysis. The temperature of OSD and displacement of bearings were investigated based on the monitored data and numerical results. After that, the deformation and residual temperature stress of OSD during the paving process were analyzed. On this basis, the effect of residual temperature stress on fatigue damage accumulation of OSD was investigated and discussed. Results show that the uplift and expanded deformation of OSD arise during the paving process, leading to the displacement of bearings. Residual displacement of bearings, as well as the residual temperature stress at fatigable details of OSD, is observed. The residual temperature stress has considerable effect on fatigue damage accumulation at rib-deck weld. A fatigue damage amplification factor of 1.1 is recommended for taking into consideration of the adverse effect of high-temperature pavement paving.https://www.mdpi.com/2076-3417/10/20/7196orthotropic steel deckhigh-temperature pavement pavingfatigue damageresidual temperature stressstress ratio |
| spellingShingle | Qiudong Wang Bohai Ji Zhongqiu Fu Hao Wang Effect of High-Temperature Pavement Paving on Fatigue Durability of Bearing-Supported Steel Decks Applied Sciences orthotropic steel deck high-temperature pavement paving fatigue damage residual temperature stress stress ratio |
| title | Effect of High-Temperature Pavement Paving on Fatigue Durability of Bearing-Supported Steel Decks |
| title_full | Effect of High-Temperature Pavement Paving on Fatigue Durability of Bearing-Supported Steel Decks |
| title_fullStr | Effect of High-Temperature Pavement Paving on Fatigue Durability of Bearing-Supported Steel Decks |
| title_full_unstemmed | Effect of High-Temperature Pavement Paving on Fatigue Durability of Bearing-Supported Steel Decks |
| title_short | Effect of High-Temperature Pavement Paving on Fatigue Durability of Bearing-Supported Steel Decks |
| title_sort | effect of high temperature pavement paving on fatigue durability of bearing supported steel decks |
| topic | orthotropic steel deck high-temperature pavement paving fatigue damage residual temperature stress stress ratio |
| url | https://www.mdpi.com/2076-3417/10/20/7196 |
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