Title: ANALYSIS OF MOVING DYNAMIC LOADS ON RIGID PAVEMENTS --TRUCK DESIGNERS SPRUNG? SYMPOSIUM ON HEAVY VEHICLE SUSPENSION CHARACTERISITCS, PROCEEDINGS, CANBERRA, AUSTRALIA, MARCH 23-25, 1987
Abstract: The purpose of this paper is to develop a methodology to analyse rigid pavement response to moving, dynamic vehicle loads which may be used to predict pavement performance. Current models of vehicle pavement interaction employ simplified models of vehicle loading, such as a static load. However, instantaneous dynamic vehicle loads may be considerably higher than static loads, and thus dynamic loading can have a considerable impact on rigid pavement performance. The paper investigates the influence of heavy truck dynamics on rigid pavements and compares the results to flexible pavements. In order to predict the forces at the road tyre interface, full non linear models were used to describe the behaviour of articulated vehicles traversing rigid pavements. Non linear leaf spring suspension and tyre models were used. Following a review of rigid pavement models, we selected and modified pmarp (Purdue method for analysis of rigid pavements), to couple with our vehicle model. The final part of the study discusses the effects of varying vehicle parameters on road cracking damage. The parameters examined include suspension type, friction parameters, tyre pressure, axle spacing, load sharing coefficient, velocity and suspension spring constants (a). For the abstract of the covering record of the symposium, see IRRD no 808884.
Publication Year: 1988
Publication Date: 1988-01-01
Language: en
Type: article
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Cited By Count: 4
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