{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,7]],"date-time":"2026-02-07T20:59:47Z","timestamp":1770497987411,"version":"3.49.0"},"reference-count":26,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2024,4,2]],"date-time":"2024-04-02T00:00:00Z","timestamp":1712016000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Natural Science Foundation of China","award":["11672215"],"award-info":[{"award-number":["11672215"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>Due to their excellent thermal conductivity and sensitivity to temperature changes, special attention should be paid to the influence of temperature on steel-structure bridges. The temperature effect is complex, especially for unstable steel arch bridges with complex structural forms. This paper proposes an approximate method that measures the three-dimensional temperature field of the symmetrical arch rib with the two-dimensional temperature field of multiple sections. In addition, it converts the complex radiant intensity calculation of the special-shaped steel box arch rib into the calculation of numerous planar radiant intensities. It uses the ANSYS Workbench to establish the three-dimensional transient thermal analysis finite element model of the No. 2 steel box arch rib. The influence of seasons and arch rib direction on the temperature field of steel box arch ribs and the stress and deformation of steel box arch ribs under non-linear temperature effects were analyzed. The results show that the temperature changes in different seasons significantly impact the temperature changes in the arch ribs. The change in the azimuth angle of the arch rib has a significant impact on the temperature difference between the web plates on both sides of the arch rib; under the influence of the temperature field at the most unfavorable time in summer and winter, symmetrical stress concentration occurs in the arch foot area. Furthermore, the maximum vertical displacement is 13.9 mm and 10.8 mm, respectively. Finally, when the angle is 40\u00b0, the maximum temperature difference between the web plates on both sides is 6.9 \u00b0C.<\/jats:p>","DOI":"10.3390\/sym16040413","type":"journal-article","created":{"date-parts":[[2024,4,2]],"date-time":"2024-04-02T01:26:10Z","timestamp":1712021170000},"page":"413","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Study on Sunlight Temperature Field of Steel Box Arch Ribs in Irregular Arch Bridges"],"prefix":"10.3390","volume":"16","author":[{"given":"Hongsheng","family":"Qiu","sequence":"first","affiliation":[{"name":"School of Transportation and Logistics Engineering, Wuhan University of Technology, Wuhan 430063, China"}]},{"given":"Kaikun","family":"Wu","sequence":"additional","affiliation":[{"name":"School of Transportation and Logistics Engineering, Wuhan University of Technology, Wuhan 430063, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3997-8009","authenticated-orcid":false,"given":"Mo\u2019men","family":"Ayasrah","sequence":"additional","affiliation":[{"name":"Department of Civil Engineering, Faculty of Engineering, Al al-Bayt University, Mafraq 25113, Jordan"}]},{"given":"Weihong","family":"Huang","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, Sun Yat-Sen University, Guangzhou 510275, China"}]}],"member":"1968","published-online":{"date-parts":[[2024,4,2]]},"reference":[{"key":"ref_1","first-page":"676","article-title":"Construction control points of butterfly steel structure bridge","volume":"5","author":"Shenkai","year":"2008","journal-title":"J. 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