Precast pre-stressed concrete composite slabs have been widely used in recent years owing to excellent mechanical properties and cost savings. The low accuracy of visual observation and the complexity of actual measurement make the determination of the precise information of structural safety difficult. This article presents an acoustic emission study on the precast pre-stressed concrete composite slab under static loading. First, the correlation between acoustic emission hits (or energy) and crack width (or deflection) was obtained and compared in detail. Second, the stiffness of this composite slab was predicted using the acoustic emission amplitude. Third, a novel analysis method for damage fracture classification is proposed, which is based on the traditional parameter and fuzzy C-means clustering. This method can be used to determine visual crack emerging, rebar yielding, and eventual failure mode by an acoustic emission parametric analysis without involving visual inspection or mechanical measurement. It can be effectively used for fracture characterization and health monitoring of composite slabs.
WangQRanziGWangY, et al. Long-term behaviour of simply-supported steel-bars truss slabs with recycled coarse aggregate. Constr Build Mater2016; 116: 335–346.
2.
GirhammarUAPajariM. Tests and analysis on shear strength of composite slabs of hollow core units and concrete topping. Constr Build Mater2008; 22(8): 1708–1722.
3.
ZhangJYaoYZhouX, et al. Failure mode and ultimate bearing capacity of precast ribbed panels used for concrete composite slabs. Adv Struct Eng2013; 16: 2005–2017.
4.
YeeAA. Social and environmental benefits of precast concrete technology. PCI J2001; 46(3): 14–19.
5.
YeeAAHonD. Structural and economic benefits of precast/prestressed concrete construction. PCI J2001; 46(4): 34–42.
6.
YuKDingYLiuJ, et al. Energy dissipation characteristics of all-grade polyethylene fiber-reinforced engineered cementitious composites (PE-ECC). Cement Concrete Comp2020; 106: 103459.
7.
Benavent-ClimentAGallegoAVicoJM. An acoustic emission energy index for damage evaluation of reinforced concrete slabs under seismic loads. Struct Health Monit2012; 11: 69–81.
8.
DegalaSRizzoPRamanathanK, et al. Acoustic emission monitoring of CFRP reinforced concrete slabs. Constr Build Mater2009; 23: 2016–2026.
9.
SouliotiDBarkoulaNMPaipetisA, et al. Acoustic emission behavior of steel fibre reinforced concrete under bending. Constr Build Mater2009; 23: 3532–3536.
10.
WorleyRDewoolkarMMXiaT, et al. Acoustic emission sensing for crack monitoring in prefabricated and prestressed reinforced concrete bridge girders. J Bridge Eng2019; 24(4): 04019018.
11.
FarhidzadehASalamoneSLunaB, et al. Acoustic emission monitoring of a reinforced concrete shear wall by b-value–based outlier analysis. Struct Health Monit2013; 12: 3–13.
12.
Benavent-ClimentACastroEGallegoA. AE monitoring for damage assessment of RC exterior beam-column subassemblages subjected to cyclic loading. Struct Health Monit2009; 8: 175–189.
13.
LiDChenZFengQ, et al. Damage analysis of CFRP-confined circular concrete-filled steel tubular columns by acoustic emission techniques. Smart Mater Struct2015; 24: 085017.
14.
YuyamaSLiZWYoshizawaM, et al. Evaluation of fatigue damage in reinforced concrete slab by acoustic emission. NDT&E Int2001; 34: 381–387.
15.
LacidognaGPianaGCarpinteriA. Acoustic emission and modal frequency variation in concrete specimens under four-point bending. Appl Sci2017; 7(4): 339.
16.
JiaoYZhangYShanW, et al. Damage fracture characterization of reinforced concrete beam subjected to four-point bending with parametric analysis of static, dynamic, and acoustic properties. Struct Health Monit. Epub ahead of print 17 October 2019. DOI: 10.1177/1475921719881756.
17.
SagastaFZittoMEPiotrkowskiR, et al. Acoustic emission energy b-value for local damage evaluation in reinforced concrete structures subjected to seismic loadings. Mech Syst Signal Pr2018; 102: 262–277.
18.
GB50081-2002. Standard for test method of mechanical properties on ordinary concrete (Beijing, China: China Building Industry Press, 2003).
19.
ZhangXCShanWCZhangZW, et al. AE monitoring of reinforced concrete squat wall subjected to cyclic loading with information entropy-based analysis. Eng Struct2018; 165: 359–367.
20.
GutenbergBRichterCF. Earthquake magnitude, intensity, energy, and acceleration. B Seismol Soc Am1942; 32(3): 163–191.
21.
AggelisDGSouliotiDVSapouridisN, et al. Acoustic emission characterization of the fracture process in fibre reinforced concrete. Constr Build Mater2011; 25: 4126–4131.
22.
NairACaiCS. Acoustic emission monitoring of bridges: review and case studies. Eng Struct2010; 32: 1704–1714.
23.
ShahidanSPulinRBunnoriNM, et al. Damage classification in reinforced concrete beam by acoustic emission signal analysis. Constr Build Mater2013; 45: 78–86.
24.
JCMS-III B5706(2003). Monitoring method for active cracks in concrete by acoustic emission (Tokyo, Japan: Federation of Construction Materials Industries, 2003).
25.
PremPRMurthyAR. Acoustic emission monitoring of reinforced concrete beams subjected to four-point-bending. Appl Acoust2017; 117: 28–38.
NorNMIbrahimABunnoriNM, et al. Acoustic emission signal for fatigue crack classification on reinforced concrete beam. Constr Build Mater2013; 49: 583–590.
