Comparison of acoustic emission activity in steel-reinforced and FRP-reinforced concrete beams

Mirmiran, Amir; Philip, S. Vibin

doi:10.1016/s0950-0618(00)00036-2

Cited by 34 publications

(11 citation statements)

References 5 publications

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“…7. Felicity ratios for RC beams are higher than the corresponding values for FRP-RC beams of the same re-bar arrangements [29]. Mirmiran et al [29] observed that change in trend of felicity ratio appears to be more pronounced for RC beams with steel reinforcement as compared to the fibre reinforced plastic (FRP) -RC beams.…”

Section: Kaiser Effect In Rc Beamsmentioning

confidence: 98%

“…Felicity ratios for RC beams are higher than the corresponding values for FRP-RC beams of the same re-bar arrangements [29]. Mirmiran et al [29] observed that change in trend of felicity ratio appears to be more pronounced for RC beams with steel reinforcement as compared to the fibre reinforced plastic (FRP) -RC beams. This implies that behaviour of steel-RC beams is closer to the Kaiser effect than that of FRP-RC beams and the felicity ratios for specimens without shear reinforcement are lower than the corresponding values of with shear reinforcement specimens.…”

Section: Kaiser Effect In Rc Beamsmentioning

confidence: 98%

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Kaiser effect observation in reinforced concrete structures and its use for damage assessment

Sagar

Prasad

Singh

2015

Archives of Civil and Mechanical Engineering

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Section: Kaiser Effect In Rc Beamsmentioning

confidence: 98%

Section: Kaiser Effect In Rc Beamsmentioning

confidence: 98%

Kaiser effect observation in reinforced concrete structures and its use for damage assessment

Sagar

Prasad

Singh

2015

Archives of Civil and Mechanical Engineering

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“…These applications include determining propagation of cracks in the concrete medium and debonding damage at the FRP/concrete interface and several more [40,44,54,59,60,64,66,81].…”

Section: Acoustic Emissionmentioning

confidence: 99%

“…NDT allows structures to be analyzed without damaging the structure. Many methods of NDT exist, including but not limited to various scanning techniques, visual inspection, chain dragging, fiberoptic sensors [51], computer vision [31,32,35,71,72], acoustic emission sensors [44,60,64,66,81], and air-coupled and contact impact-echo techniques [5,27,39,41,46,47,49,62,77].…”

Section: Introductionmentioning

confidence: 99%

Air-coupled impact-echo damage detection in reinforced concrete using wavelet transforms

Epp

Cha

2016

Smart Mater. Struct.

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Decline of the state of infrastructure in North America due to aging over the past decades has spawned burgeoning interest in the detection of internal damage of reinforced concrete (RC) structures via nondestructive testing. This study proposes a new impact-echo analysis method using wavelet transforms. The signals recorded from the microphones are analyzed using percentage of energy information to detect in-situ damages. Further, an artificial neural network (ANN) was used in order to test the feasibility of increasing the automaticity of the impact-echo method and a semi-autonomous sensing setup was used to the same end. The proposed wavelet transform-based approach showed improved accuracy when covering broader areas over conventional methods. The use of an ANN removed the need for a user-defined cutoff value for the classification of intact and damaged locations when a least-squared distance approach was used. It is postulated that this may contribute significantly to testing time reduction.

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“…Field experiments and applications of CFFTs as bridge girders (Seible et al 1999), and piers and piles (Fam et al 2003, Mirmiran andShahawy 2003) have also established their construction feasibility quite convincingly. Limited studies on acoustic emission (Mirmiran et al 1999b(Mirmiran et al , 2000c and ultrasonic pulse velocity (Mirmiran et al 2001b) for damage assessment have confirmed their potential for structural health monitoring of CFFT columns.…”

Section: Dissertation Structurementioning

confidence: 99%

Seismic Performance of Hybrid Fiber Reinforced Polymer-Concrete Pier Columns

Shi¹

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As part of a multi-university research program funded by NSF, a comprehensive experimental and analytical study of seismic behavior of hybrid fiber reinforced polymer (FRP)-concrete column is presented in this dissertation. Experimental investigation includes cyclic tests of six large-scale concrete-filled FRP tube (CFFT) and RC columns followed by monotonic flexural tests, a nondestructive evaluation of damage using ultrasonic pulse velocity in between the two test sets and tension tests of sixty-five FRP coupons. Two analytical models using ANSYS and OpenSees were developed and favorably verified against both cyclic and monotonic flexural tests. The results of the two methods were compared. A parametric study was also carried out to investigate the effect of three main parameters on primary seismic response measures. The responses of typical CFFT columns to three representative earthquake records were also investigated.The study shows that only specimens with carbon FRP cracked, whereas specimens with glass or hybrid FRP did not show any visible cracks throughout cyclic

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Comparison of acoustic emission activity in steel-reinforced and FRP-reinforced concrete beams

Cited by 34 publications

References 5 publications

Kaiser effect observation in reinforced concrete structures and its use for damage assessment

Kaiser effect observation in reinforced concrete structures and its use for damage assessment

Air-coupled impact-echo damage detection in reinforced concrete using wavelet transforms

Seismic Performance of Hybrid Fiber Reinforced Polymer-Concrete Pier Columns

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