کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1740068 1017321 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Containment performance evaluation of prestressed concrete containment vessels with fiber reinforcement
ترجمه فارسی عنوان
ارزیابی عملکرد محتویات کشتی های پیشگیرانه بتن با استفاده از تقویت فیبر
کلمات کلیدی
بتن مسلح شده با فیبر، الیاف پلی آمید، مخازن بتن مسلح پیش رونده، الیاف فولادی، استحکام کششی، ظرفیت فشار نهایی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
چکیده انگلیسی

BackgroundFibers in concrete resist the growth of cracks and enhance the postcracking behavior of structures. The addition of fibers into a conventional reinforced concrete can improve the structural and functional performance of safety-related concrete structures in nuclear power plants.MethodsThe influence of fibers on the ultimate internal pressure capacity of a prestressed concrete containment vessel (PCCV) was investigated through a comparison of the ultimate pressure capacities between conventional and fiber-reinforced PCCVs. Steel and polyamide fibers were used. The tension behaviors of conventional concrete and fiber-reinforced concrete specimens were investigated through uniaxial tension tests and their tension-stiffening models were obtained.ResultsFor a PCCV reinforced with 1% volume hooked-end steel fiber, the ultimate pressure capacity increased by approximately 12% in comparison with that for a conventional PCCV. For a PCCV reinforced with 1.5% volume polyamide fiber, an increase of approximately 3% was estimated for the ultimate pressure capacity.ConclusionThe ultimate pressure capacity can be greatly improved by introducing steel and polyamide fibers in a conventional reinforced concrete. Steel fibers are more effective at enhancing the containment performance of a PCCV than polyamide fibers. The fiber reinforcement was shown to be more effective at a high pressure loading and a low prestress level.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Engineering and Technology - Volume 47, Issue 7, December 2015, Pages 884–894
نویسندگان
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