کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8062870 | 1520635 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Research on compression behavior of coral aggregate reinforced concrete columns under large eccentric compression loading
ترجمه فارسی عنوان
تحقیق در مورد رفتار فشرده سازی ستون های بتونی بتنی ستون مرجانی تحت بار فشرده سازی خارج از مرکز بزرگ
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کلمات کلیدی
ستون بتن مسلح سنگ مرمر، رفتار فشرده سازی، نوع تقویت کننده، ظرفیت تحمل نهایی، مدل محاسبه، مهندسی دریا،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی دریا (اقیانوس)
چکیده انگلیسی
The large eccentric compression behavior of 9 coral aggregate reinforced concrete columns (CARCC) and 2 ordinary Portland reinforced concrete columns (OPRCC) was tested. The concrete type, concrete strength grade and reinforcement type were selected as parameters. The crack development, deformation and bearing capacity were investigated. The relationships of load-displacement and load-axial compressive (tensile) strain were established. The applicable calculation model for the ultimate bearing capacity (Nu) of CARCC under large eccentric compression was suggested. The results showed that the compression behavior of CARCC were similar to OPRCC. Under the same mix proportion, the lateral stiffness and ductility of CARCC of C25 were both worse than OPRCC of C35. Under the same load, the load shared by reinforcements in CARCC was more than that shared by reinforcements in OPRCC. The application of organic new coated steels, 3% calcium nitrate inhibitor and concrete strength grade over C60 in the CARCC was suggested to effectively inhibit reinforcement corrosion and extend the effective service life of the structure. A comprehensive consideration on the effects of reinforcement corrosion and slip of the coated steel on Nu of CARCC was performed. Consequently, a calculation model for the Nu of CARCC under large eccentric compression was proposed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ocean Engineering - Volume 155, 1 May 2018, Pages 251-260
Journal: Ocean Engineering - Volume 155, 1 May 2018, Pages 251-260
نویسندگان
Bo Da, Hongfa Yu, Haiyan Ma, Zhangyu Wu,