Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Alternative models for the impulse response method
The Impulse Response (IR) method is a nondestructive method used in quality control of pavements, bridge decks and deep foundations. In the case of pavements, the pavement is excited at frequencies below or at its fundamental frequency and the response recorded. The measured response contains enough information to characterize the pavement and assess its quality. The technique has been successfully used to detect the presence of voids or loss of support in rigid pavements, and to evaluate the pavement subgrade. The underlying assumption of the IR method is that a rigid pavement system can be approximated by a response of a single degree of freedom (SDOF) system, with the controlling stiffness being that of the subgrade. Use of alternative models with additional degree of freedoms provides significantly better representation of effect of individual pavement layers and the subgrade on the overall pavement response. An improved accuracy in the determination of the subgrade modulus and a better fit to the response curves is obtained. It also leads to a more accurate detection and characterization of voids underneath rigid pavements.
Alternative models for the impulse response method
The Impulse Response (IR) method is a nondestructive method used in quality control of pavements, bridge decks and deep foundations. In the case of pavements, the pavement is excited at frequencies below or at its fundamental frequency and the response recorded. The measured response contains enough information to characterize the pavement and assess its quality. The technique has been successfully used to detect the presence of voids or loss of support in rigid pavements, and to evaluate the pavement subgrade. The underlying assumption of the IR method is that a rigid pavement system can be approximated by a response of a single degree of freedom (SDOF) system, with the controlling stiffness being that of the subgrade. Use of alternative models with additional degree of freedoms provides significantly better representation of effect of individual pavement layers and the subgrade on the overall pavement response. An improved accuracy in the determination of the subgrade modulus and a better fit to the response curves is obtained. It also leads to a more accurate detection and characterization of voids underneath rigid pavements.
Alternative models for the impulse response method
Alternative Modelle für das Impulsantwort-Verfahren
Jackson, H. (Autor:in) / Gucunski, N. (Autor:in) / Maher, A. (Autor:in)
2002
9 Seiten, 7 Bilder, 6 Quellen
(Nicht paginiert).
Aufsatz (Konferenz)
Datenträger
Englisch
Impulse Response Analysis: An Alternative Method of Measuring Sound Insulation
| British Library Online Contents | 1996
Impulse Response Analysis: An Alternative Method of Measuring Sound Insulation
| SAGE Publications | 1996
Sonic Mobility (Impulse Response)
| Wiley | 2006
Study of Parameters Affecting Impulse Response Method
| Online Contents | 1996
Room Impulse Response Shaping based on Estimates of Room Impulse Responses
| British Library Conference Proceedings | 2008