Temporal and spatial evaluation of grout failure process with PC cable breakage by means of acoustic emission

被引：30
作者：
Shiotani, Tomoki [1 ,2 ]
Oshima, Yoshinobu [2 ]
Goto, Motoyoshi [3 ]
Momoki, Shohei [4 ]
机构：
[1] Kyoto Univ, Grad Sch Business, Kyoto 6158540, Japan
[2] Kyoto Univ, Grad Sch Engn, Kyoto 6158540, Japan
[3] Osaka Gas Co Ltd, Osaka 5411146, Japan
[4] Tobishima Corp, Res Inst Technol, Chiba 2700222, Japan
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2013年 / 48卷
关键词：
Prestressed concrete; Acoustic emission; Cable rupture; Average frequency; Re-anchoring;
D O I：
10.1016/j.conbuildmat.2013.04.026
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Corrosion-induced cables' breakage is reported frequently in post-tensioned PC structures, leading to eventual failure in the worst case. However, the specific failure mechanism as well as deterministic investigation techniques for cables' breakage have yet to be clarified. In this research the cables' breakage and subsequent failure processes are studied by acoustic activity. When the cable is ruptured, elastic energy is released accompanying elastic waves namely acoustic emission (AE). Identification of the breakage could be carried out by this AE activity, followed by specifying the source location. While as for the existent PC breakage, the area of breakage could be determined by examining secondary AE activity generated due to the friction between fractured grout agent and tendons, which is resulted from re-anchoring around the breakage. In this paper, these AE activities are experimentally produced using a full scale PC beam being subjected to four-point bending, where the cables' breakages are simulated by stress reduction of each of PC cables in turn and the breakage areas as well as the failure areas of grout material are quantitatively identified with AE activities. As a result of careful observation of AE activity in terms of failure types, it became obvious that the failure progress due to cables' breakage and following re-anchoring were readily identified by the AE activity. In addition, the existent breakage with re-anchoring area could be specified by AE sources as they had peculiar frequencies than others. (C) 2013 Published by Elsevier Ltd.
引用
收藏
页码：1286 / 1292
页数：7
相关论文
共 14 条
[1]   The influence of propagation path on elastic waves as measured by acoustic emission parameters [J].
Aggelis, D. G. ;
Shiotani, T. ;
Papacharalampopoulos, A. ;
Polyzos, D. .
STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL, 2012, 11 (03) :359-366
[2]  
Alver N, 2007, PROC MONOGR ENG WATE, V1-3, P999
[3]   A residual strength model for deteriorating post-tensioned concrete bridges [J].
Cavell, DG ;
Waldron, P .
COMPUTERS & STRUCTURES, 2001, 79 (04) :361-373
[4]   Corroded post-tensioned beams with bonded tendons and wire failure [J].
Coronelli, Dario ;
Castel, Arnaud ;
Vu, Ngoc Anh ;
Francois, Raoul .
ENGINEERING STRUCTURES, 2009, 31 (08) :1687-1697
[5]  
Goto M., 2011, P WCAE 2011 BEIJ CHI, P428
[6]  
Grosse C., 2010, Acoustic Emission Testing: Basics for Research - Applications in Civil Engineering
[7]   Formulation of new development length equation for 0.6 in. prestressing strand [J].
Kose, MM ;
Burkett, WR .
PCI JOURNAL, 2005, 50 (05) :96-+
[8]   Seismic diagnosis of railway substructures by using secondary acoustic emission [J].
Luo, Xiu ;
Haya, Hiroshi ;
Inaba, Tomoaki ;
Shiotanl, Tomoki .
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, 2006, 26 (12) :1101-1110
[9]   Recommendation of RILEM TC 212-ACD: acoustic emission and related NDE techniques for crack detection and damage evaluation in concrete Test method for damage qualification of reinforced concrete beams by acoustic emission [J].
Ohtsu, Masayasu ;
Shiotani, Tomoki ;
Shigeishi, M. ;
Kamada, T. ;
Yuyama, S. ;
Watanabe, T. ;
Suzuki, T. ;
van Mier, J. G. M. ;
Vogel, T. ;
Grosse, C. ;
Helmerich, R. ;
Forde, M. C. ;
Moczko, A. ;
Breysse, D. ;
Ivanovich, S. A. ;
Sajna, A. ;
Aggelis, D. ;
Lacidogna, G. .
MATERIALS AND STRUCTURES, 2010, 43 (09) :1183-1186
[10]  
Sansalone M.J., 1997, IMPACT ECHO
12