Article,
Development and application of innovative triaxially braided ductile FRP fabric for strengthening concrete beams
Composite Structures, (2004)
DOI: 10.1016/j.compstruct.2003.09.051
Abstract
In this paper, an innovative triaxially braided ductile fiber reinforced
polymer (FRP) fabric has been developed for strengthening
reinforced concrete beams. The fabric was designed to potentially
avoid most of the drawbacks experienced by currently available
FRP strengthening systems. The ideal characteristics of a strengthening
material for reinforced concrete beams were first investigated.
Then, an analytical study was conducted to investigate the undulation
effect of diagonal yarns on their loading behavior.
Based on these investigations, the fabric was designed, manufactured,
and its mechanical properties were experimentally evaluated.
The effectiveness of the fabric as a strengthening material for reinforced
concrete beams has been investigated by testing four reinforced
concrete beams strengthened in flexure and shear using the new fabric.
The test results showed that the fabric met its design
objectives.
