Nonlinear analysis of RC deep beams strengthened with NSM CFRP anchor
bars
الباحث الأول:
Douread R. Hassen
الباحثين الآخرين:
Abdul Aziz Abdul Samad 1, Noridah Mohamad 1, Ali N. Attiyah 2, Thaer M. Mezher 2, Alyaa
A. Azeez
المجلة:
International Journal of Advanced and Applied Sciences
تاريخ النشر:
None
مختصر البحث:
Studies on the effect of using externally bonded fiber reinforced polymer
(FRP) laminates and near surface mounted (NSM) FRP bars on the shear
strengthening of reinforced concrete (RC) beams has been widely conducted
by various researchers global…
Studies on the effect of using externally bonded fiber reinforced polymer
(FRP) laminates and near surface mounted (NSM) FRP bars on the shear
strengthening of reinforced concrete (RC) beams has been widely conducted
by various researchers globally. However, an innovative technique using
NSM CFRP as anchor bars on the shear strengthening of RC deep beams has
never been conducted. Current experimental work on NSM anchor bars has
shown good enhancement in the shear capacity for the RC deep beams. This
paper presents results obtained from the analytical model of the RC deep
beams shear strengthened by NSM CFRP Anchor bars. The study comprises
of developing four analytical models using finite element method software
ANSYS Version 14. Results of the analytical model and experimental findings
were compared for validation. All deep beams were simply supported and
subjected to four point bending test with shear span to depth ratio av/d of
0.864. CFRP NSM bars of 5 mm diameter with 450 mm length and spaced at
100 mm (for beams R1 and R2) and 150 mm (for beams R3 and R4) were
anchors into their respective beams. Similar properties from the
experimental work were adopted for the analytical model. Results from the
analytical model such as crack pattern, failure mode and load displacement
profile were observed to have good agreement with the experimental
findings. Shear capacity shows proximity between the analytical model and
experimental results observed at 15 % for beams R1 and R2, and 7 % for
beams R3 and R4.
