کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
819493 1469441 2008 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Strengthening slabs using externally-bonded strip composites: Analysis of concrete covers on the strengthening
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Strengthening slabs using externally-bonded strip composites: Analysis of concrete covers on the strengthening
چکیده انگلیسی

This study pertains to the experimental and theoretical behaviour of slabs strengthened by fibre reinforced polymer (FRP). The experimental results show that FRP significantly increases punching failure stress, resulting in a reduction of slab rotation around the loading column. The theoretical investigation presents a finite element model for the bending of strengthened slabs. The developed model considers the concrete as a 3D multi-layered non-linear material and explicitly takes into account the steel reinforcement and the FRP strips. The proposed model is then used to analyse the effects of a concrete cover on the reinforcement and repairs. In the analysed cases, the results show that an average reduction in the concrete shear modulus, between steel rod and FRP, of more than 30% leads to significant reductions of stress and slab stiffness.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part B: Engineering - Volume 39, Issues 7–8, October–December 2008, Pages 1125–1135
نویسندگان
, , , ,