Enhancing the Performance of Reinforced Concrete Beam Struture Using CFRP Sheet and CFRP Achors
Rona Ariyansyah (a*), Riawan Gunadi (b)
a) Department Civil Engineering, State Polytechnic of Bandung
Jl. Gegerkalong Hilir, Ciwaruga, Bandung 40012, Indonesia
*ronaariyansyah99[at]yahoo.co.id
b) Department Civil Engineering, State Polytechnic of Bandung
Jl. Gegerkalong Hilir, Ciwaruga, Bandung 40012, Indonesia
Abstract
Well-designed building structure sometimes suffers from of problems after being built. Structural problems in a building often relate to damages and failures. Several methods can be used to enhance the capacity of building structure including reinforcement and refinement. Reinforcement and refinement can be performed by adding more concrete layer, using steel plate, external pre-stressing and using FRP. FRP is an alternative reinforcement material. Concrete reinforcement using FRP is vulnerable to debonding problem which makes it less optimal. To address this issue, this experimental research was carried out in which reinforced concrete beam was strengthened using FRP by adding FRP anchors to prevent debonding failures. Laboratory experiments were conducted to examine the problem using scientific procedures to find actual solutions. In this research, a test object in the form of 150 mm x 200 mm x 3200 mm concrete beam with third point load was used. Different gaps of anchors of 0.000 mm, 12000 mm, 800 mm, 400 mm and 200 mm were the research variable. This research showed that the use of anchors successfully prevented debonding problems in CFRP reinforcement. The use of 3 CFRP at a distance of 1200 mm appeared as the most effective reinforcement method.
Keywords: Building Structure, Carbon Fiber Reinforced Polymer, Reinforcement, CFRP Anchor
Topic: Civil Engineering