Response Analysis of Asphalt Pavement under Dynamic Loadings: Loading Equivalence

摘要: This paper establishes the equivalent relationships between half-sinusoidal load, triangular vertical stepwise and moving traffic load. The governing equation was established for analyzing dynamic responses of pavement, load functions were transformed into Fourier series expressions. partial differential equations simplified as ordinary analytical solutions obtained. Further, validated through comparing theoretical results with numerical simulated results. Calculation revealed that, unchanged periods, increasing amplitudes three loads by 1.06, 1.31, 1.35 times can better simulate loads. For function amplitudes, periods 1.07, 2.23, 2.1 (for half-sinusoidal, triangular, loads, resp.) improve simulation performance. fatigue life asphalt pavements under agrees that simulations, indicating is only associated amplitude but not patterns.