Predicting Pavement Performance

by Robert E. Boyer, (M.ASCE), Course Dir.; Pavements Engrg., Civ. Engrg. School, Air Force Inst. of Tech., Wright-Patterson Air Force Base, OH,
Milton W. Harr, (F.ASCE), Prof. of Soil Mech.; School of Civ. Engrg., Purdue Univ., West Lafayette, IN,

Serial Information: Transportation Engineering Journal of ASCE, 1974, Vol. 100, Issue 2, Pg. 431-442

Document Type: Journal Paper


An approach using a new modeling technique (transfer function theory) was developed to predict the performance of a pavement system subjected to dynamic load inputs. Transfer function theory was extended in connection with a convolution procedure to define a pavement's time-dependent functions. The time-dependent transfer functions were calculated from data measured during full-scale tests in a service environment. Deflection output responses were calculated from the time-dependent service environment. The study indicated that the characteristics of flexible pavement could be represented by a series of time-dependent transfer functions obtained from dynamic tests using practically any prime mover. The time-dependent transfer functions contained some descriptors which could be related to the aircraft gear configurations, and other descriptors which were indicative of the pavement itself.

Subject Headings: Time dependence | Dynamic loads | Pavements | Dynamic tests | Dynamic models | Load transfer | Full-scale tests | Displacement (mechanics)

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