Bidirectional Fatigue Damage Analysis of Asphalt Pavement

被引：0

作者：

Wang X.-D. ^{[1
]}

Zhang L. ^{[1
]}

Zhou X.-Y. ^{[1
]}

机构：

[1] Research Institute of Highway Ministry of Transport, Beijing

来源：

Zhongguo Gonglu Xuebao/China Journal of Highway and Transport | 2023年 / 36卷 / 05期

关键词：

asphalt pavement; bending-tension fatigue; bidirectional fatigue; layer-by-layer accumulation; road engineering; rutting; T-D transverse cracks;

D O I：

10.19721/j.cnki.1001-7372.2023.05.002

中图分类号：

学科分类号：

摘要：

Fatigue damage is an important issue in the technical system of asphalt pavement and the corresponding fatigue design models have been established in various design methods. The fatigue evolution behavior of asphalt pavement in the life cycle was studied and 60 million loading tests were applied on the full-scale accelerated loading test track (RIOHTrack). Different fatigue damage conditions from 19 test sections were obtained and a bidirectional fatigue damage mode of asphalt pavements was presented. In this mode, under the action of a driving load, the asphalt pavement undergoes both top-down and bottom-up fatigue damage. The top-down fatigue damage is caused by a compression or shear load and can be generally manifested as the dual damage between the transverse top-down fatigue cracking and rutting deformation. Bottom-up fatigue damage is a traditional fatigue damage mode, caused by the flexural load at the bottom of the whole material structural layer. It is important to note that the flexural fatigue failure of a single structural layer does not lead to the failure of the whole structure, that is, the fatigue life of a structural layer is not equal to the fatigue life of the whole structure. In this paper, based on the bottom-up fatigue damage mode, a layer-by-layer accumulation analysis method of fatigue life is proposed to improve the assessment of flexural fatigue life of asphalt pavement. © 2023 Xi'an Highway University. All rights reserved.

引用

页码：21 / 37

页数：16

共 26 条

[1]

Guide for mechanistic-empirical design of new and rehahilitated pavement structures, final document, appendix gg-1: Calihration of permanent deformation models for flexible pavements, (2004)

[2]

CORTE J F., French design manual for pavement structures, (1997)

[3]

Specifications for design of highway asphalt pavement, (2017)

[4]

YANG Guang, Research on the fatigue performance of the typical asphalt concrete from semi-rigid base longlife asphalt pavement [D], (2014)

[5]

PING Shujiang, SHEN Ai-qin, LI Peng, Study of fatigue limit of asphalt mixture for perpetual pavement [J], China Journal of Highway and Transport, 22, 1, pp. 34-38, (2009)

[6]

ZHU Yun-sheng, GUO Zhong-ym, CHEN Chong-ju, Et al., A study on experiments of dry shrinkage and temperature shrinkage performances of semi-rigid base course materials [J], Highway, 51, 2, pp. 145-148, (2006)

[7]

LIU Zhang, Study on the initial durability of semi-rigid base material [D], (2014)

[8]

SHA Ai-min, JIA Kan, LU Jian-qing, Et al., Deterioration laws of dynamic modulus of semi rigid base course materials [J], China Journal of Highway and Transport, 22, 3, pp. 1-6, (2009)

[9]

CHEN Jian-kang, SONG Hui, Damage coupled nonlinear vis-coelastic constitutive model of concretes [J], Chinese Journal of Applied Mechanics, 28, 4, pp. 407-411, (2011)

[10]

ZHAO Yong-xiang, WANG Jin-nuo, GAO Qing, New method for strain-based fatigue reliability analysis [J], Chinese Journal of Mechanical Engineering, 38, 1, pp. 27-30, (2002)

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