A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Radar detection of voids in post-tensioned concrete bridge beams
An investigation into the detection of voids in post-tensioned concrete beams by ground penetrating radar is presented. Both experimental and numerical modelling results suggest that the optimum orientation of the radar's antennas is perpendicular to the long axis of the ducts containing the post-tensioning tendons. This experimental and numerical investigation on the detection of voids in post-tensioned concrete beams with plastic ducts leads to the conclusion that a perpendicular orientation of the GPR antennas is more beneficial than the parallel one that is normally used. More experiments with different types of faults have been scheduled to establish the proper procedures for the faithful detection of various types of voids (different level of grouting) within plastic ducts. Although 2D modelling is very useful for most cases encountered in GPR often only a full 3D solution can provide a much needed insight into the GPR detection mechanism.
Radar detection of voids in post-tensioned concrete bridge beams
An investigation into the detection of voids in post-tensioned concrete beams by ground penetrating radar is presented. Both experimental and numerical modelling results suggest that the optimum orientation of the radar's antennas is perpendicular to the long axis of the ducts containing the post-tensioning tendons. This experimental and numerical investigation on the detection of voids in post-tensioned concrete beams with plastic ducts leads to the conclusion that a perpendicular orientation of the GPR antennas is more beneficial than the parallel one that is normally used. More experiments with different types of faults have been scheduled to establish the proper procedures for the faithful detection of various types of voids (different level of grouting) within plastic ducts. Although 2D modelling is very useful for most cases encountered in GPR often only a full 3D solution can provide a much needed insight into the GPR detection mechanism.
Radar detection of voids in post-tensioned concrete bridge beams
Nachweis von Hohlräumen in nachgespannten Beton-Brückenträgern
Giannopoulos, A. (author) / Macintyre, P.M. (author) / Rodgers, S. (author) / Forde, M.C. (author)
2001
11 Seiten, 12 Bilder, 8 Quellen
(Nicht paginiert).
Conference paper
English
NDE of Post Tensioned Concrete Bridge Beams
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Impact-echo assessment of post-tensioned concrete bridge beams
| Tema Archive | 1997