Page 172 - ISCIR_2017

Strengthening of RC Structures using FRPs
by Asst. Prof. Dr. Kittipoom Rodsin
Strengthening of non-ductile
column using FRP 150
100
1
50
Lateral Load (kN) 0
เสาไม่ได้เสริมกําลัง -250 -200 -150 -100 -50 0 50 100 150 200 250

-50
With FRP
-100
Without FRP
-150
Displacement (mm)

เสาที่เสริมกําลัง

Strengthening of RC Structures using FRPs
by Asst. Prof. Dr. Kittipoom Rodsin

Why GFPR?
1. Cheap with high tensile strength
Tensile strength and cost of glass fiber

Carbon fiber Glass fiber
Tensile Strength (MPa) 3500 2300
Young’s Modulus (GPa) 200 76
Thickness (mm) 0.111 0.350
Price per sq. m. (Bth) 1400 300
Tensile Strength Per Meter (Ton) 38.85 80.50
Price/Strength (Bth/Ton) 36.0 3.7
Price/(Tensile Strength x Young’s 0.18 0.04
Modulus)

oInnovative Seismic Strengthening System for Concrete Structuresp 170
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