关键词: 超高, 沥青路面, 力学响应, 有限元, 离心力

Abstract: Centrifugal force, which is ignored in general design procedures, exists and affects pavement when vehicles pass by the superelevation sections of asphalt pavement. The mechanical characteristics of superelevation sections and equations of unequal load distribution were deduced. To illustrate the influences, a typical highway pavement was modeled by finite element method. Then quantificational analyses of structural response under different velocity were conducted. Analyses in dicate that structural responses are serious when the influence of centrifugal force is taken into consider. The higher velocity, the more influences. So, both the influences of centrifugal force and the insufficiency of general design procedures are responsible for the weakness of the superelevation sections of asphalt pavement.

Key words: superelevation, asphalt pavement, structural response, FEM, centrifugal force