Non-stationary Response of Flexible pavements to Moving Vehicles
2016 (English)In: The international journal of pavement engineering, ISSN 1029-8436, E-ISSN 1477-268X, Vol. 17, no 5, 458-470 p.Article in journal (Refereed) Published
In this paper the pavement surface deterioration is investigated based on field measurements of surface roughness profiles obtained in Sweden. A predictive function for surface deterioration, based on average gradient of yearly measurements of the road surface profile in Swedish road network, is proposed. In order to characterise the dynamic loads induced on the pavement by moving traffic a quarter car model is used. Afterwards a non-stationary stochastic approach is used to obtain the yearly response of the pavement to moving loads. The solution is in frequency-wavenumber domain and is given for a non-stationary random case as the pavement surface deteriorates in pavement service life influencing thus the magnitude of the dynamic loads induced by the vehicles. The effect of pavement surface evolution on the stress state induced in the pavement by moving traffic is examined for a specific case of quarter car model and pavement structure. The results showed approximately a 100% increase in the dynamic component of stresses induced in the pavement.
Place, publisher, year, edition, pages
Taylor & Francis, 2016. Vol. 17, no 5, 458-470 p.
IdentifiersURN: urn:nbn:se:kth:diva-156041DOI: 10.1080/10298436.2014.993394ISI: 000371595500009OAI: oai:DiVA.org:kth-156041DiVA: diva2:764208
Updated from Accepted to Published. QC 201604012014-11-182014-11-182016-04-01Bibliographically approved