Computer simulation and field measurement of dynamic pavement loading

Mathematics and Computers in Simulation (Impact Factor: 0.95). 06/2001; 56(3):297-313. DOI: 10.1016/S0378-4754(01)00297-X


Two methods, i.e. computer simulation and field measurement, are used in this paper to investigate dynamic pavement loading (DPL) generated by vehicle–pavement interaction. A profilometer is used for measuring road surface roughness. Based on the power spectral density of the measured surface roughness, a computer simulation program is developed using quarter vehicle model. In field measurement methods, an experiment is designed to gain the time history of DPL. An IVECO vehicle is taken as a test vehicle and eight vibration cells were used to pick up vertical accelerations of vehicle body and axle. The test data are collected and recorded while the test vehicle is moving along 11 different pavement sections of highway and bridge at six different speeds. Statistical characteristics of vertical accelerations and DPL of the test vehicle are obtained and analyzed by means of random process theory. The result of computer simulation matches the result of field measurement very well. It is found that DPL is primarily concentrated between 1.8 and 14.8 Hz and coefficient of variation of DPL falls into the range of 5–35% of static vehicle load. An approximate relationship between coefficient of variation of DPL and vehicle speed and road surface roughness is established. © 2001 IMACS. Published by Elsevier Science B.V. All rights reserved.

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Available from: L. Sun, Dec 10, 2014
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    • "The results showed that the dynamic loads were significantly higher than the static loads under rough pavement conditions. Sun (2001) compared the predicted and measured Dynamic Pavement Load (DPL) generated by vehicle pavement interaction. Based on measured profiles of pavement surface, the dynamic load was simulated based on a quarter car model. "
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    • "For example, Schmeitz et al.(2004) presented both tyre and vehicle models over arbitrary road profiles, and investigated how the vehicle system behaved and how the enveloping model that generated an effective road surface contributed to this behavior . Sun (2001) adopted computer simulation and field measurement to investigate dynamic pavement loading generated by vehicle-pavement interaction and established an approximate relationship between road surface roughness and the measurement instrument coefficient of variation and vehicle speed. Some metrics have been put forward and used for measuring handling and ride comfort considering terrain conditions and tyre types (Uys et al., 2006). "
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