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Numerical validation of viscoelastic responses of a pavement structure in a full-scale accelerated pavement test
Statens väg- och transportforskningsinstitut, Infrastruktur, INFRA, Väg- och banteknik, VBA.
Statens väg- och transportforskningsinstitut, Infrastruktur, INFRA, Väg- och banteknik, VBA.
2015 (engelsk)Inngår i: The international journal of pavement engineering, ISSN 1029-8436, E-ISSN 1477-268XArtikkel i tidsskrift (Fagfellevurdert) Published
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Text
Abstract [en]

This paper demonstrates the application of a generalised layered linear viscoelastic (LVE) analysis for estimating the structural response of flexible pavements. A comparison of the direct layered viscoelastic responses with approximate solutions based on the linear elastic (LE) and LVE collocation methods was also carried out. The different approaches were implemented by extending a layered elastic program with an improved computational performance. The LE and LVE collocation methods were further extended for analysis of pavements under moving loads.

The methods were illustrated by analysing a pavement structure subjected to moving wheel loads of 30, 50, 60 and 80 kN using a Heavy Vehicle Simulator (HVS). The various responses (stresses and strains) in the pavement, at pavement temperatures of 0, 10 and 20°C, were measured using various types of sensors installed in the structure. It was shown that the approximated LVE solution based on the LE collocation method agreed very well with the measurements and is computationally the least expensive.

sted, utgiver, år, opplag, sider
2015.
Emneord [en]
Flexible pavement, Viscoelasticity, Unbound base, Loading, Mathematical model, Calculation
HSV kategori
Forskningsprogram
30 Road: Highway design, 32 Road: Pavement design
Identifikatorer
URN: urn:nbn:se:vti:diva-9278DOI: 10.1080/10298436.2015.1039003Scopus ID: 2-s2.0-84929238620OAI: oai:DiVA.org:vti-9278DiVA, id: diva2:909425
Tilgjengelig fra: 2016-03-07 Laget: 2016-03-02 Sist oppdatert: 2017-11-30bibliografisk kontrollert

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Ahmed, Abubeker W.Erlingsson, Sigurdur
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