Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
This report summarizes the findings and results from a laboratory and field study on the strain distribution and crack development in 3' thick concrete panels cast on top of existing concrete pavements as a rapid rehabilitation strategy for roadways. Both fiber Bragg gratings (FBG) and Brillouin Optical Time Domain Reflectometry/Analysis (BOTDR/A) were applied and tested for the feasibility and effectiveness in distributed strain measurement and crack detection. For laboratory tests, six 6'x6'' panels were cast similar to their corresponding field construction. Each was tested under both truck loads and under three-point loads. The performance of distributed BOTDR/A strain measurements was compared with that of FBG sensors. In field study, the performance of FBG sensors was compared with that from strain gauges when the ambient temperature was measured with thermocouples.
This report summarizes the findings and results from a laboratory and field study on the strain distribution and crack development in 3' thick concrete panels cast on top of existing concrete pavements as a rapid rehabilitation strategy for roadways. Both fiber Bragg gratings (FBG) and Brillouin Optical Time Domain Reflectometry/Analysis (BOTDR/A) were applied and tested for the feasibility and effectiveness in distributed strain measurement and crack detection. For laboratory tests, six 6'x6'' panels were cast similar to their corresponding field construction. Each was tested under both truck loads and under three-point loads. The performance of distributed BOTDR/A strain measurements was compared with that of FBG sensors. In field study, the performance of FBG sensors was compared with that from strain gauges when the ambient temperature was measured with thermocouples.
Unbonded Portland Cement Concrete/Pavement Monitoring with Integrated Grating and Scattering Optical Fiber Sensors
2014
96 pages
Report
Keine Angabe
Englisch
Plasma Physics , Holography , Structural Analyses , Laboratory & Test Facility Design & Operation , Nondestructive Testing , Embedding , Optical detectors , Reinforced concrete , Structural properties , Diffraction , Optical fibers , Scattering , Installation , Measurement , Monitoring , Non-destructive testing , Reliability , Stress analysis , Silicon dioxide , Bridges , Control , Dams , Fiber optics , Fibers , Fiber Bragg Gratings(FBG) , Brillouin Optical Time Domain Reflectometry/Analysis(BOTDR/A)
Evaluation of unbonded Portland cement concrete overlays
| TIBKAT | 1999
Portland Cement Concrete Pavement Texturing Methods
| British Library Online Contents | 1996