A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Determining Length of Installed Timber Pilings by Dispersive Wave Propagation Methods
This study had the objectives of (1) exploring the feasibility of a proposed nondestructive test to determine the length-in-place of installed timber pilings; (2) if found feasible, to carry the development of the method as far as possible toward the condition of field readiness; (3) to provide hard copy and documentation of computer programs developed to perform signal processing. These objectives have been met. The method followed was to create bending waves in a piling by a moderate impact on the exposed surface, and to capture with accelerometers the bending waves in their travels in the piling. A signal processing method called the Short Kernel Method (SKM) was used to determine phase velocities of spectral components of the dispersive bending waves, and from the travel time to tip and return, to calculate the length.
Determining Length of Installed Timber Pilings by Dispersive Wave Propagation Methods
This study had the objectives of (1) exploring the feasibility of a proposed nondestructive test to determine the length-in-place of installed timber pilings; (2) if found feasible, to carry the development of the method as far as possible toward the condition of field readiness; (3) to provide hard copy and documentation of computer programs developed to perform signal processing. These objectives have been met. The method followed was to create bending waves in a piling by a moderate impact on the exposed surface, and to capture with accelerometers the bending waves in their travels in the piling. A signal processing method called the Short Kernel Method (SKM) was used to determine phase velocities of spectral components of the dispersive bending waves, and from the travel time to tip and return, to calculate the length.
Determining Length of Installed Timber Pilings by Dispersive Wave Propagation Methods
R. A. Douglas (author) / J. D. Holt (author)
1994
288 pages
Report
No indication
English
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