Spectra of Road Surface Roughness on Bridges
- 1 September 1982
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of the Structural Division
- Vol. 108 (9) , 1956-1966
- https://doi.org/10.1061/jsdeag.0006035
Abstract
The power spectral density (PSD) of road surface roughness on highway bridges is presented. Eighty-four lines of 56 bridges were measured and the road surface roughness was measured by surveyor's level. The PSD is assumed by a stationary normal probability process with a zero mean value, and is calculated by a maximum entropy method (MEM) to a measured value of road surface roughness. Numerical examples are presented to obtain the information of road surface roughness on bridges in spectral characteristics, and to give the appropriate PSD using the dynamic response analysis of bridges under moving vehicles.Keywords
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