Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Evaluation of accelerometers to determine pavement deflections under traffic loads
Abstract The purpose of this work was to study the use of accelerometers to measure pavement deflections due to traffic loads. To this end, accelerometers were embedded in two sites: the full scale load simulator Circular Test Track (CTT) and the A1 motorway in Switzerland. Deflections were derived from acceleration measurements using an algorithm that double integrates the measured signal and corrects any errors derived from the procedure. In the motorway, deflections were monitored using a set of three magnetostrictive deflectometers. Additionally, the pavement’s material viscoelastic parameters determined in the laboratory were incorporated in Finite Element (FE) models to estimate the theoretical deflections. The calculated deflections were then compared to the measured and to the theoretical deflections. Deflections calculated from acceleration showed a reasonable qualitative correlation to those measured by magnetostrictive deflectometers. In addition, the FE models revealed the inability of the accelerometers to measure very slow or quasi-static motion.
Evaluation of accelerometers to determine pavement deflections under traffic loads
Abstract The purpose of this work was to study the use of accelerometers to measure pavement deflections due to traffic loads. To this end, accelerometers were embedded in two sites: the full scale load simulator Circular Test Track (CTT) and the A1 motorway in Switzerland. Deflections were derived from acceleration measurements using an algorithm that double integrates the measured signal and corrects any errors derived from the procedure. In the motorway, deflections were monitored using a set of three magnetostrictive deflectometers. Additionally, the pavement’s material viscoelastic parameters determined in the laboratory were incorporated in Finite Element (FE) models to estimate the theoretical deflections. The calculated deflections were then compared to the measured and to the theoretical deflections. Deflections calculated from acceleration showed a reasonable qualitative correlation to those measured by magnetostrictive deflectometers. In addition, the FE models revealed the inability of the accelerometers to measure very slow or quasi-static motion.
Evaluation of accelerometers to determine pavement deflections under traffic loads
Arraigada, M. (Autor:in) / Partl, M. N. (Autor:in) / Angelone, S. M. (Autor:in) / Martinez, F. (Autor:in)
Materials and Structures ; 42 ; 779-790
30.08.2008
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Evaluation of accelerometers to determine pavement deflections under traffic loads
| British Library Online Contents | 2009
Evaluation of accelerometers to determine pavement deflections under traffic loads
| Online Contents | 2009
Evaluation of accelerometers to determine pavement deflections under traffic loads
| Online Contents | 2008