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Mum, why are the potholes 8 feet apart? Repetitive wheel loads from heavy vehicles in the spatial domain

Davis, Lloyd E. & Bunker, Jonathan M. (2009) Mum, why are the potholes 8 feet apart? Repetitive wheel loads from heavy vehicles in the spatial domain. In Proceedings of the 15th Queensland Transport and Main Roads Technology Forum, Queensland Transport and Main Roads, The State of Queensland, Brisbane, Qld.

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Abstract

This paper presents the results of testing to determine pavement forces from three heavy vehicles (HVs). The HVs were instrumented to measure their wheel forces. A “novel roughness” value of the roads during testing is also derived. The various dynamic pavement forces are presented according to the range of novel roughness of pavement surfacings encountered during testing. The paper then examines the relationship between the two derived wavelengths predominant within the HV suspensions; those of axle hop and body-bounce. How these may be considered as contributing to spatial repetition of pavement forces from HVs is discussed. The paper concludes that pavement models need to be revised since dynamic forces from HVs in particular are not generally considered in current pavement design.

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ID Code: 40889
Item Type: Conference Paper
Keywords: heavy vehicle, suspension testing, pavement design, wheel load, pavement load, spatial repitition, spatial repeatability, pavement force, wheel force, axle hop, body bounce
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Infrastructure Engineering and Asset Management (090505)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Transport Engineering (090507)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Urban Development
Copyright Owner: Copyright 2009 The State of Queensland
Deposited On: 23 Mar 2011 08:43
Last Modified: 23 Mar 2011 16:29

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