An Experimental Investigation on Flexural Behavior of Reinforced Concrete Beams Strengthened by an Intelligent CFRP Plate with Built-In Optical Fiber Bragg Grating Sensors

Figure 6

Posttensioned CFRP plates tension device and anchorage system. c, s—reaction force steel plates at the tension end and fixed end, respectively; d, t—the anchoring steel plates at the tension end and fixed end; e—mechanical bolts; g—wedge-type anchorage; h—load cell sensor; k, m—tension rods at the tension rod and fixed end; n—anchoring bolts; q, u—groove at the tension end and the fixed end; r—CFRP plate and epoxy adhesive; w—the hydraulic jacking.

(a) Plan view

(b) Front view