Journal of Sensors / 2018 / Article / Tab 4 / Research Article
An Experimental Investigation on Flexural Behavior of Reinforced Concrete Beams Strengthened by an Intelligent CFRP Plate with Built-In Optical Fiber Bragg Grating Sensors Table 4 Strengthening details of test beams.
Test specimen Dead load before strengthening (kN) Initial damage Bonding Grooving CFRP type RC-0 0 None — — — RC-AC 0 Artificially cracked — — — RC-LR 0 Low reinforcement ratio — — — B-GR-0-T 0 None Bonded Grooved Smart B-CR-0-T 0 Artificially cracked Bonded Grooved Smart B-MS-0-T 0 Low reinforcement ratio Bonded Grooved Smart UB-GR-0-T 0 None Unbonded Grooved Smart UB-GR-300-T 300 Previously cracked Unbonded Grooved Smart UB-NG-300-T 300 Previously cracked Unbonded Nongrooved Smart UB-NG-0-T 0 None Unbonded Nongrooved Normal
Note: B: bonded; GR: grooved; T: three-point bending tests; AC: precracked; LR: low reinforcement ratio bars; UB: unbonded; smart: CFRP plates with built-in FBG sensor.
