{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,8]],"date-time":"2026-02-08T23:23:03Z","timestamp":1770592983275,"version":"3.49.0"},"reference-count":28,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2026,2,6]],"date-time":"2026-02-06T00:00:00Z","timestamp":1770336000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["51474168"],"award-info":[{"award-number":["51474168"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["51108041"],"award-info":[{"award-number":["51108041"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Guiding Project of Scientific Research Plan of the Education Department of Hubei Province","award":["B2024419"],"award-info":[{"award-number":["B2024419"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>This study experimentally investigates the residual axial compression behavior of circular glass fiber-reinforced polymer (GFRP) tube-confined concrete short columns (CFGFT) after exposure to elevated temperatures. A total of 27 specimens were fabricated and tested under axial compression, with key parameters including GFRP tube wall thickness (5, 8, and 10 mm), exposure temperature (100, 150, 200, and 300 \u00b0C), and constant temperature duration (60 and 120 min). The results show that the load\u2013displacement responses of CFGFT short columns after elevated temperature exposure exhibit distinct two-stage characteristics, culminating in brittle failure at the ultimate axial capacity. Wall thickness significantly influences the failure modes of the specimens, while elevated temperatures increase the occurrence of unfavorable failure modes. Temperature is identified as the primary factor governing the degradation of residual axial capacity and initial stiffness, with performance deterioration becoming more pronounced at temperatures exceeding 200 \u00b0C. In contrast, the effect of constant temperature duration within the range of 60\u2013120 min is relatively limited. Based on the experimental results, a simplified binary quadratic regression model incorporating the coupled effects of temperature and wall thickness is proposed to predict the post-fire axial capacity reduction factor (Kr), with a coefficient of determination (R2) of 0.901. These findings provide experimental evidence and a practical predictive approach for the fire-resistant design and post-fire safety assessment of CFGFT members.<\/jats:p>","DOI":"10.3390\/ma19030634","type":"journal-article","created":{"date-parts":[[2026,2,6]],"date-time":"2026-02-06T11:10:38Z","timestamp":1770376238000},"page":"634","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Post-Fire Axial Compressive Behavior of Circular GFRP Tube-Confined Concrete Short Columns"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0009-0005-2282-5323","authenticated-orcid":false,"given":"Yiwei","family":"Tang","sequence":"first","affiliation":[{"name":"Yangtze University College of Arts and Sciences, Jingzhou 434020, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Liu","family":"Yang","sequence":"additional","affiliation":[{"name":"Yangtze University College of Arts and Sciences, Jingzhou 434020, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ni","family":"Zhang","sequence":"additional","affiliation":[{"name":"Yangtze University College of Arts and Sciences, Jingzhou 434020, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yali","family":"Feng","sequence":"additional","affiliation":[{"name":"Yangtze University College of Arts and Sciences, Jingzhou 434020, China"},{"name":"School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jixiang","family":"Li","sequence":"additional","affiliation":[{"name":"Yangtze University College of Arts and Sciences, Jingzhou 434020, China"},{"name":"School of Civil Engineering and Architecture, Wuhan Polytechnic University, Wuhan 430023, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2026,2,6]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2419","DOI":"10.1016\/j.conbuildmat.2010.04.062","article-title":"A Review of the Present and Future Utilisation of FRP Composites in the Civil Infrastructure with Reference to Their Important In-Service Properties","volume":"24","author":"Hollaway","year":"2010","journal-title":"Constr. 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