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Strategic Study of CAE >> 2017, Volume 19, Issue 6 doi: 10.15302/J-SSCAE-2017.06.012

Fatigue Life Prediction of Long-Life Pavement Using Frequency-Domain Analysis

Institute of Water Conservancy and Environment, Zhengzhou University, Zhengzhou 450001, China

Funding project:中国工程院咨询项目“交通基础设施重大结构安全保障战略研究”(2015-XZ-28) Received: 2017-11-18 Revised: 2017-11-30 Available online: 2018-01-31 09:57:40.000

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Abstract

This paper analyses a pavement fatigue life prediction method for asphalt and cement concrete pavements. A detailed frequency domain analysis of fatigue life was carried out. Using the vehicle-road coupled vibration system model, the random vibration between the vehicle and road caused by road roughness was analyzed. In this paper, it is proposed that the random power spectral density of the vehicle-road coupling vibration is a useful tool to predict the fatigue life of pavements, and corresponding prediction procedures are proposed, which are aimed at providing some reference for long-life pavement design and performance evaluation.

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