{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,27]],"date-time":"2026-08-27T14:54:50Z","timestamp":1787842490960,"version":"build-2784847793"},"reference-count":48,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T00:00:00Z","timestamp":1747180800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Guangzhou Electric Power Design Institute 2024 Substation Engineering Mechanization Research Topic Technical Services","award":["20240946"],"award-info":[{"award-number":["20240946"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Steel fiber-reinforced polymer (FRP) composite bars (SFCBs) combine the ductility of steel reinforcement with the corrosion resistance and high strength of FRP, providing stable secondary stiffness that enhances the seismic resistance and safety of seawater sea\u2013sand concrete structures. However, the seismic performance of SFCB-reinforced seawater sea\u2013sand concrete beam\u2013column joints remains underexplored. This study presents pseudo-static tests on SFCB-reinforced beam\u2013column joints with varying column SFCB longitudinal reinforcement fiber volume ratios (64%, 75%, and 84%), beam reinforcement fiber volume ratios (60.9%, 75%, and 86%), and axial compression ratios (0.1 and 0.2). The results indicate that increasing the axial compression ratio enhances nodal shear capacity and bond strength, limits slip, and reduces crack propagation, but also accelerates bearing capacity degradation. Higher column reinforcement fiber volumes improve crack distribution and ductility, while beam reinforcement volume significantly affects energy dissipation and crack distribution, with moderate volumes (e.g., 75%) yielding optimal seismic performance. These findings provide insights for the seismic design of SFCB-composite-reinforced concrete structures in marine environments.<\/jats:p>","DOI":"10.3390\/ma18102282","type":"journal-article","created":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T10:27:41Z","timestamp":1747218461000},"page":"2282","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Seismic Performance of Beam\u2013Column Joints in Seawater Sand Concrete Reinforced with Steel-FRP Composite Bars"],"prefix":"10.3390","volume":"18","author":[{"given":"Ruiqing","family":"Liang","sequence":"first","affiliation":[{"name":"Guangzhou Electric Power Design Institute Co., Ltd., Guangzhou 510060, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Botao","family":"Zhang","sequence":"additional","affiliation":[{"name":"Guangzhou Electric Power Design Institute Co., Ltd., Guangzhou 510060, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhensheng","family":"Liang","sequence":"additional","affiliation":[{"name":"Guangzhou Electric Power Design Institute Co., Ltd., Guangzhou 510060, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiemi","family":"Li","sequence":"additional","affiliation":[{"name":"School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shuhua","family":"Xiao","sequence":"additional","affiliation":[{"name":"School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China"},{"name":"School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523080, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,5,14]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"155877","DOI":"10.1016\/j.scitotenv.2022.155877","article-title":"The environmental impacts of river sand mining","volume":"838","author":"Rentier","year":"2022","journal-title":"Sci. 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