Dynamic response evaluation of inclined pavements with interface shear
by Raj Siddharthan, Peter E. Sebaaly, Zia Zafir
International Journal of Heavy Vehicle Systems (IJHVS), Vol. 3, No. 1/2/3/4, 1996

Abstract: Pavement performance data reveal that the upward sloping pavements deteriorate much faster than downward sloping pavements. This paper documents the influence of the pavement-tyre interface shear stress and vehicle speed on the response of sloping pavements. An efficient ''finite layer'' moving load model has been used to predict the pavement strain response in terms of the principal shear strain and longitudinal tensile strain in the AC layer and the vertical compressive strain on top of the sub-grade. The impact of the strains' magnitudes on the fatigue and rutting performance of flexible pavements is also presented. In the analyses, the AC layer and the unbound materials were assumed viscoelastic and linear elastic, respectively. The study reveals that, since the increase in the speed of the vehicle decreases the pavement-tyre interface shear stress and increases the rate of loading, it plays a major role in decreasing the rate of pavement deterioration. For example, there is only about a 6% increase in the maximum principal shear strain, between the upward and downward sloping pavements if the speed of the vehicle remains constant. However, if the speeds of the vehicle on the upward and downward sloping pavements are 30 and 80 km/hr respectively, then the difference in has been computed to be as much as 70%.

Online publication date: Tue, 18-Jun-2013

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Heavy Vehicle Systems (IJHVS):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com