A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Non-destructive methods using fiber optic deformation sensors for damage identification in pre-stressed concrete structures
Existing concrete structures such as bridge decks, slabs and tunnels require periodic inspections through the non-destructive testing methods to assess their structural integrity. Many well known non-destructive testing (NDT) methods are currently in use for the identification of the damage insurgence but they are usually limited to particular classes of structures or damages. In this work a wide-ranging non-destructive method is presented. The proposed monitoring approach involves the use of innovative sensors which can be used for both static and dynamic measurements. The method is based on the measured deformations from undamaged and damaged concrete structures subjected to environmental loads and instrumented with a set of fiber optic extensometers for measuring the long-term structural behavior. In particular, the paper is focused on data processing algorithms able to discover anomalous behavior in the structural responses. Data obtained from both computer simulations and experimental tests on pre-stressed concrete beams have been used to compare and validate several statistical procedures on data analysis without using behavior models. In particular, results from Proper Orthogonal Decomposition for damage detection are presented.
Non-destructive methods using fiber optic deformation sensors for damage identification in pre-stressed concrete structures
Existing concrete structures such as bridge decks, slabs and tunnels require periodic inspections through the non-destructive testing methods to assess their structural integrity. Many well known non-destructive testing (NDT) methods are currently in use for the identification of the damage insurgence but they are usually limited to particular classes of structures or damages. In this work a wide-ranging non-destructive method is presented. The proposed monitoring approach involves the use of innovative sensors which can be used for both static and dynamic measurements. The method is based on the measured deformations from undamaged and damaged concrete structures subjected to environmental loads and instrumented with a set of fiber optic extensometers for measuring the long-term structural behavior. In particular, the paper is focused on data processing algorithms able to discover anomalous behavior in the structural responses. Data obtained from both computer simulations and experimental tests on pre-stressed concrete beams have been used to compare and validate several statistical procedures on data analysis without using behavior models. In particular, results from Proper Orthogonal Decomposition for damage detection are presented.
Non-destructive methods using fiber optic deformation sensors for damage identification in pre-stressed concrete structures
Zerstörungsfreie Methoden mittels faseroptischen Verformungssensoren zur Schadensidentifikation in vorgespannten Betonstrukturen
Francesca, Lanata (author) / Del Grosso, Andrea (author) / Mercalli, Andrea (author) / Posenato, Daniele (author)
2009
6 Seiten, 5 Bilder, 7 Quellen
(nicht paginiert)
Conference paper
Storage medium
English
Fiber-optic interferometric sensors for concrete structures
| Tema Archive | 1992
Non-destructive Damage Identification of Blended Concrete Systems Using Embedded Piezo Sensors
| Springer Verlag | 2024
Fiber optic sensors in concrete structures: a review
| British Library Online Contents | 1996
Embedded fiber optic sensors for reinforced concrete structures
| Tema Archive | 1998
SOFO: Monitoring of Concrete Structures with Fiber Optic Sensors
| British Library Conference Proceedings | 1998