00985877

Component

https://doi.org/10.3141/1896-11

http://scholar.google.com...tsui&publication_year=2004

In this research, a pavement is modeled as a multilayered elastic system composed of a subgrade that is assumed to be a semi-infinite medium. On top of the sublayer are layers of finite thickness infinitely extended horizontally. Furthermore, it is assumed that vertical loading, such as wheel load, and horizontal loading, such as brake load, are simultaneously applied at the surface of a road or runaway pavement. This load is assumed to be circular and uniformly distributed over the entire area. Expressing the displacement function of Navier's equation in a cylindrical coordinate system through harmonic and biharmonic functions, the analytical solution method is obtained by using Michell and Boussinesq functions as well as Hankel transformation and Hankel inverse transformation. In this research, a program called GAMES, which can find pavement responses to multiple vertical and shear loadings, was developed. Theoretical analysis uses the principle of superposition, and the solution is given by summing up the solutions from vertical and horizontal loads. The accuracy of this program is confirmed by comparing results for a number of worked examples with results obtained using the BISAR program. It is also possible to allow an interface slip modeled in a form of shear spring. The current version of this program allows for analysis of 10,000 measurement points with a maximum of 100 loads and 100 pavement layers.

This paper appears in Transportation Research Record No. 1896, Pavement Design and Accelerated Testing 2004.

00985866

English

p. 107-118

2004

Transportation Research Record

0309094895

Figures (8) ; References (15) ; Tables (4)

Computer programs; Elastic analysis; Flexible pavements; Pavement layers; Software; Wheel loads

Braking loads; Horizontal loads; Vertical loads

Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces

TRIS, TRB, ATRI

Feb 10 2005 12:00AM

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