Temperature Field and Gradient Effect of a Steel-Concrete Composite Box Girder Bridge
To study the effect of the temperature field and gradient of a steel-concrete composite box girder bridge, a 5 × 35 continuous composite box girder bridge is used as the research object. The temperature measuring point is set by selecting a typical cross section, and the temperature change data are...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/9901801 |
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| _version_ | 1832561519595880448 |
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| author | Haoxu Li Zhiguo Zhang Nianchun Deng |
| author_facet | Haoxu Li Zhiguo Zhang Nianchun Deng |
| author_sort | Haoxu Li |
| collection | DOAJ |
| description | To study the effect of the temperature field and gradient of a steel-concrete composite box girder bridge, a 5 × 35 continuous composite box girder bridge is used as the research object. The temperature measuring point is set by selecting a typical cross section, and the temperature change data are measured. The temperature field of the different positions in the composite box girder bridge is studied, the global and local temperature differences are compared, and the law of temperature distribution and the main factors affecting the temperature field are formulated. The most unfavourable expression function of the vertical temperature gradient of the section is simulated using the measured data, the existing standard temperature gradient mode is compared, the finite element model of the bridge is established, and the influence of the actual temperature gradient mode on the stress and deformation of the composite girder is further analysed. The conclusions show that the temperature differences of different azimuth sections and the local temperature differences between the steel and concrete joint parts of the steel-concrete composite box girder bridge are not significant. The temperature gradient heating and cooling model fitted by the measured temperature field can be used as a reference for the structural design of similar local bridges. |
| format | Article |
| id | doaj-art-b21b5ed12d254e55906365d34f063061 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-b21b5ed12d254e55906365d34f0630612025-02-03T01:24:50ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422021-01-01202110.1155/2021/99018019901801Temperature Field and Gradient Effect of a Steel-Concrete Composite Box Girder BridgeHaoxu Li0Zhiguo Zhang1Nianchun Deng2College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, ChinaSchool of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, ChinaCollege of Civil Engineering and Architecture, Guangxi University, Nanning 530004, ChinaTo study the effect of the temperature field and gradient of a steel-concrete composite box girder bridge, a 5 × 35 continuous composite box girder bridge is used as the research object. The temperature measuring point is set by selecting a typical cross section, and the temperature change data are measured. The temperature field of the different positions in the composite box girder bridge is studied, the global and local temperature differences are compared, and the law of temperature distribution and the main factors affecting the temperature field are formulated. The most unfavourable expression function of the vertical temperature gradient of the section is simulated using the measured data, the existing standard temperature gradient mode is compared, the finite element model of the bridge is established, and the influence of the actual temperature gradient mode on the stress and deformation of the composite girder is further analysed. The conclusions show that the temperature differences of different azimuth sections and the local temperature differences between the steel and concrete joint parts of the steel-concrete composite box girder bridge are not significant. The temperature gradient heating and cooling model fitted by the measured temperature field can be used as a reference for the structural design of similar local bridges.http://dx.doi.org/10.1155/2021/9901801 |
| spellingShingle | Haoxu Li Zhiguo Zhang Nianchun Deng Temperature Field and Gradient Effect of a Steel-Concrete Composite Box Girder Bridge Advances in Materials Science and Engineering |
| title | Temperature Field and Gradient Effect of a Steel-Concrete Composite Box Girder Bridge |
| title_full | Temperature Field and Gradient Effect of a Steel-Concrete Composite Box Girder Bridge |
| title_fullStr | Temperature Field and Gradient Effect of a Steel-Concrete Composite Box Girder Bridge |
| title_full_unstemmed | Temperature Field and Gradient Effect of a Steel-Concrete Composite Box Girder Bridge |
| title_short | Temperature Field and Gradient Effect of a Steel-Concrete Composite Box Girder Bridge |
| title_sort | temperature field and gradient effect of a steel concrete composite box girder bridge |
| url | http://dx.doi.org/10.1155/2021/9901801 |
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