Abstract: (11528 Views)
FRPs (fiber reinforced polymer) possess many favorable characteristics suitable and applicable for
construction industry when compared with steel reinforcement. There are new ideas to use FRPs as
longitudinal or transverse reinforcement for new concrete elements particularly for bridge decks or beams.
Although high tensile strength of FRP is main characteristic for applications at both areas, its weakness to
bending and linear stress-strain behavior with virtually no ductility, makes it vulnerable to probably
premature failures under reversal tension-compression loading during earthquake. A pilot research project
has been conducted to explore the characteristics of large-scale cantilever concrete beams reinforced with
FRP re-bars and grids and were tested under either simulated cyclic loading or monotonically increasing
lateral loading. This paper presents the test parameters and results obtained during research. The analytical
relationships are compared with those recorded experimentally, and test results showed the diagonal cracks
and either rupturing of FRP bars in tension or stability failure in compression bars at long or short shear span
beams. The comparison of nominal moment capacities between analytical and experimental values confirms
that plane section analysis is applicable to FRP reinforced concrete members.
Type of Study: Research Paper