Retroftting of the reinforced concrete beams using external tightened
steel bars
الباحث الأول:
Ahmed Abduljaleel Jasim Alalikhan
الباحثين الآخرين:
Mohsen A. Habelalmateen
Haider Ali Al-Tameemi
المجلة:
Journal of Building Pathology and Rehabilitation
تاريخ النشر:
Feb. 23, 2024
مختصر البحث:
Several techniques were considered to retroft the reinforced concrete members sufering damages or design mistakes. The
present study investigates experimentally using a tightened bar system as an externally applied reinforcement installed
straig…
Several techniques were considered to retroft the reinforced concrete members sufering damages or design mistakes. The
present study investigates experimentally using a tightened bar system as an externally applied reinforcement installed
straightly to provide additional strength to the partially or completely damaged concrete beams. The study involves testing
13 reinforced concrete beams classifed into two groups based on the location of the externally applied reinforcement, either
one bar installed beneath the lower face of the beam or two bars added to both sides of the beam. The study also investigates
changing the loading ratio during the frst stage of loading (40, 80, and 100) % of the ultimate load capacity of the control
specimen. The third adopted parameter was the location of anchorage system devices for the beam edges, which was 10 cm
or 25 cm. The results exhibited that the externally straight threaded tighten steel bar enhanced the ability of partially or
completely damaged concrete beams to withstand additional loading in the range of (4–69) % above the original ultimate
load capacity of the beam. Furthermore, the anchorage system on the bottom side of the beam was more efcient than the
anchorage system on both sides
