Time-varying solar radiation-induced non-uniform temperature distribution of steel-concrete composite box girder-ballastless track system
Aiming to investigate the non-uniform temperature distribution of the steel-concrete composite box girder-ballastless track system induced by the time-varying solar radiation, the ray-tracing algorithm was used to calculate the environmental parameters. The segment finite element model (SFEM) for sp...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-03-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X23000564 |
| _version_ | 1828052301296697344 |
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| author | Xingwang Sheng Zoujie Chen Weiqi Zheng Hongyi Xu |
| author_facet | Xingwang Sheng Zoujie Chen Weiqi Zheng Hongyi Xu |
| author_sort | Xingwang Sheng |
| collection | DOAJ |
| description | Aiming to investigate the non-uniform temperature distribution of the steel-concrete composite box girder-ballastless track system induced by the time-varying solar radiation, the ray-tracing algorithm was used to calculate the environmental parameters. The segment finite element model (SFEM) for spatial interaction between the bridge and the ballastless track was used to perform several numerical simulations. The temperature variation induced by solar radiation was evaluated based on the numerical simulations. The results showed that the peak temperature of the system (on the western side of the steel web) was 49.59 Co (at 16:00). Regarding time-varying solar temperature distribution of the steel-concrete composite box girder-ballastless track system, a difference was found between the western and eastern sides of the steel webs. Finally, the vertical temperature gradient model of the steel-concrete composite box girder-ballastless track system was established according to the most unfavorable temperature. The results provided a reference for constructing and maintaining a steel-concrete composite box girder equipped with the ballastless track. |
| first_indexed | 2024-04-10T19:51:30Z |
| format | Article |
| id | doaj.art-3cd6cba27a354861af6919c871b85018 |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-04-10T19:51:30Z |
| publishDate | 2023-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-3cd6cba27a354861af6919c871b850182023-01-28T04:07:44ZengElsevierCase Studies in Thermal Engineering2214-157X2023-03-0143102750Time-varying solar radiation-induced non-uniform temperature distribution of steel-concrete composite box girder-ballastless track systemXingwang Sheng0Zoujie Chen1Weiqi Zheng2Hongyi Xu3School of Civil Engineering, Central South University, Changsha, 410075, ChinaSchool of Civil Engineering, Central South University, Changsha, 410075, ChinaSchool of Civil Engineering, Central South University, Changsha, 410075, China; National Engineering Research Center of High-speed Railway Construction Technology, Changsha, 410075, China; Corresponding author. School of Civil Engineering, Central South University, Changsha, 410075, China.School of Civil Engineering, Central South University, Changsha, 410075, China; Hunan Provincial Communications Planning, Survey & Design Institute CO., LTD, ChinaAiming to investigate the non-uniform temperature distribution of the steel-concrete composite box girder-ballastless track system induced by the time-varying solar radiation, the ray-tracing algorithm was used to calculate the environmental parameters. The segment finite element model (SFEM) for spatial interaction between the bridge and the ballastless track was used to perform several numerical simulations. The temperature variation induced by solar radiation was evaluated based on the numerical simulations. The results showed that the peak temperature of the system (on the western side of the steel web) was 49.59 Co (at 16:00). Regarding time-varying solar temperature distribution of the steel-concrete composite box girder-ballastless track system, a difference was found between the western and eastern sides of the steel webs. Finally, the vertical temperature gradient model of the steel-concrete composite box girder-ballastless track system was established according to the most unfavorable temperature. The results provided a reference for constructing and maintaining a steel-concrete composite box girder equipped with the ballastless track.http://www.sciencedirect.com/science/article/pii/S2214157X23000564Solar radiationThermal analysisTemperature gradient modelSteel-concrete composite girderBallastless track |
| spellingShingle | Xingwang Sheng Zoujie Chen Weiqi Zheng Hongyi Xu Time-varying solar radiation-induced non-uniform temperature distribution of steel-concrete composite box girder-ballastless track system Case Studies in Thermal Engineering Solar radiation Thermal analysis Temperature gradient model Steel-concrete composite girder Ballastless track |
| title | Time-varying solar radiation-induced non-uniform temperature distribution of steel-concrete composite box girder-ballastless track system |
| title_full | Time-varying solar radiation-induced non-uniform temperature distribution of steel-concrete composite box girder-ballastless track system |
| title_fullStr | Time-varying solar radiation-induced non-uniform temperature distribution of steel-concrete composite box girder-ballastless track system |
| title_full_unstemmed | Time-varying solar radiation-induced non-uniform temperature distribution of steel-concrete composite box girder-ballastless track system |
| title_short | Time-varying solar radiation-induced non-uniform temperature distribution of steel-concrete composite box girder-ballastless track system |
| title_sort | time varying solar radiation induced non uniform temperature distribution of steel concrete composite box girder ballastless track system |
| topic | Solar radiation Thermal analysis Temperature gradient model Steel-concrete composite girder Ballastless track |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X23000564 |
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