{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,1,15]],"date-time":"2025-01-15T15:10:02Z","timestamp":1736953802076,"version":"3.33.0"},"reference-count":43,"publisher":"MDPI AG","issue":"15","license":[{"start":{"date-parts":[[2023,8,2]],"date-time":"2023-08-02T00:00:00Z","timestamp":1690934400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Guangxi Key Research and Development Plan Project","award":["GuikeAB22036007"]},{"name":"Special Key Project for Technological Innovation and Application Development in Chongqing","award":["CSTB2022TIAD-KPX0205"]},{"name":"Science and Technology Project of Chongqing Municipal Transportation Bureau","award":["KJXM2021-0966"]},{"name":"Independent Research and Development Project of the State Key Laboratory of Mountain Bridge and Tunnel Engineering","award":["SKLBT-YF2103"]},{"name":"Project of Science and Technology Program of Department of Transport, Hubei Province","award":["2020-186-1-6"]},{"name":"Chongqing Jiaotong University Postgraduate Scientific Research Innovation Project","award":["CYB23247"]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"To study the evolution of stress on the ring and segment interfaces during the construction process of the concrete encapsulation of the main arch ring in a rigid-frame arch bridge, alongside its impact on the ultimate load-bearing capacity of the main arch ring, a 1:10 scale model experiment was conducted by taking the 600 m Tian\u2019e Longtan Bridge as the prototype. The key cross-section concrete strain data were collected during the entire construction process of the main arch ring via fiber-optic strain sensors, which were used to investigate the stress evolution at ring and segment interfaces. ANSYS APDL was employed to simulate the ultimate bearing capacity under various loading conditions of two different finite element models, which were, respectively, formed segmentally and by single pouring. The results revealed that (1) after the closure of the concrete encapsulation of the main arch ring, the concrete stress in the cross-section exhibits significant stress disparities. At the same cross-section, the level of the web concrete stress can reach 76% of the floor concrete stress, while the roof concrete stress level is less than 20% of the floor concrete stress. (2) At the junction of two adjacent work planes, there are considerable differences in the stress levels of the concrete on both sides. After the closure of the main arch ring, the intersegment stress ratios of the floor, web, and roof concrete are 60~70%, 40~60%, and 0~5%, respectively. (3) Loading conditions remarkably affected the ultimate bearing capacity of the main arch ring. Under mid-span loading and 1\/4 span symmetrical loading conditions, compared to single-pour concrete encapsulation, the ultimate bearing capacity of the main arch ring with concrete encapsulated by segmented and ring-divided pouring decreased by 19.16% and 5.23%, respectively, compared to single-pour concrete encapsulation. This suggests that the non-uniformity of stress distribution in the concrete sheath can lead to reductions in the ultimate bearing capacity of the arch ring.<\/jats:p>","DOI":"10.3390\/s23156868","type":"journal-article","created":{"date-parts":[[2023,8,2]],"date-time":"2023-08-02T15:17:17Z","timestamp":1690989437000},"page":"6868","source":"Crossref","is-referenced-by-count":5,"title":["Evolution Law of Concrete Interface Stress of Rigid-Frame Arch under Construction and Its Impact on Ultimate Load-Bearing Capacity"],"prefix":"10.3390","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2566-8088","authenticated-orcid":false,"given":"Yonghui","family":"Fan","sequence":"first","affiliation":[{"name":"State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, China"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-5162-7992","authenticated-orcid":false,"given":"Chao","family":"Luo","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, China"}]},{"given":"Yin","family":"Zhou","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0677-232X","authenticated-orcid":false,"given":"Ligui","family":"Yang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, China"}]},{"given":"Xinglin","family":"Li","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, China"}]},{"given":"Jinlong","family":"Liao","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, China"}]}],"member":"1968","published-online":{"date-parts":[[2023,8,2]]},"reference":[{"key":"ref_1","first-page":"45","article-title":"Overview of the development of concrete filled steel tubular rigid skeleton arch bridges in China","volume":"46","author":"Zhao","year":"2016","journal-title":"Bridge Constr."},{"key":"ref_2","first-page":"57","article-title":"Effects of Cyclic Temperature on Time-Dependent Deformation Behavior of Long-Span Concrete Arch Bridge","volume":"49","author":"Wang","year":"2019","journal-title":"Bridge Constr."},{"key":"ref_3","first-page":"141","article-title":"Stochastic analysis of long-term deformation of reinforced concrete arch bridges for high-speed railways","volume":"45","author":"Ma","year":"2012","journal-title":"China Civ. 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