کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
259011 503626 2012 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tensile and fatigue behavior of corroded rebars
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Tensile and fatigue behavior of corroded rebars
چکیده انگلیسی

This paper presents the results of an experimental study on the static tensile and fatigue behavior of corroded reinforcing steel bars. Both natural carbonation-induced and artificially accelerated corrosion were considered. The tensile test results indicated significant degradation in deformability and strength of corroded rebars and the ultimate tensile strength was more affected than the yielding strength. The fatigue test results indicated that the fatigue life of corroded rebars decreased significantly with increases of corrosion and stress range. Compared with the tensile behavior, the fatigue behavior of corroded rebars was more affected by corrosion. It was also found that tensile and fatigue properties of artificially corroded rebars were less affected by corrosion than those of naturally corroded rebars. An equivalent cross-sectional area was established to quantify the influence of corrosion, and the fatigue life of corroded rebars under combined effects of corrosion and stress range was predicted.


► We tested corroded rebars produced from natural and accelerated processes.
► We tested corroded rebars with tensile and fatigue loading.
► We analyzed the influence of corrosion degree and stress range.
► We proposed a concept of equivalent cross-sectional area and a calculation formula.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 34, September 2012, Pages 409–417
نویسندگان
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