Open AccessExperimental Investigation on the Failure Behavior of Carbon Fiber Reinforced Polymer (CFRP) Strengthened Reinforced Concrete T-beams
Author(s) -
Junaedi Utomo,
Muhammad Nur Khusyeni,
Windu Partono,
Han Ay Lie,
Buntara Sthenly Gan
Publication year - 2021
Publication title -
dimensi teknik sipil/civil engineering dimension
Language(s) - English
Resource type - Journals
eISSN - 1979-570X
pISSN - 1410-9530
DOI - 10.9744/ced.23.2.115-122
Subject(s) - materials science , anchoring , carbon fiber reinforced polymer , composite material , failure mode and effects analysis , reinforcement , fibre reinforced plastic , reinforced concrete , pultrusion , structural engineering , shear (geology) , engineering
Carbon Fiber Reinforced Polymers (CFRP) are widely used as external concrete reinforcement. The behavior of T-beams strengthened in shear and flexure using CFRP sheets and plates was studied to analyze the load carrying capacity and failure mode as compared to conventional concrete members. The bonding response of the plate-to-concrete was investigated by comparing a specimen with a plate anchored at the far ends, one without anchoring. The sheets were in situ wet lay-up, the plate was pre-impregnated and pultruded during manufacturing. The test result suggested that this integrated strengthening method notably improved the load-carrying capacity, it was also demonstrated that anchoring had a positive but insignificant effect on the moment capacity and deformation. The influence of anchoring was noteworthy from the point of view that it shifted the failure mode from debonding to CFRP plate rupture. The most important factors influencing the behavior of CFRP strengthened beams are outlined.