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引用本文:	田小革,韩海峰,李新伟,张起森,李烨.抗裂型沥青稳定碎石的双面剪切疲劳性能研究[J].建筑材料学报,2018,21(1):165-168

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抗裂型沥青稳定碎石的双面剪切疲劳性能研究
田小革¹, 韩海峰², 李新伟², 张起森¹, 李烨¹
1.长沙理工大学交通运输工程学院，湖南长沙410114;2.广州市高速公路有限公司，广东广州510288

摘要:

为提高沥青稳定碎石的抗裂性能，优化设计了粗集料间断半开级配的沥青稳定碎石（ATB 25），并对其进行了应力比分别为01，02，03，04和05的双面剪切疲劳试验.结果表明：应力比对ATB 25梁式试件疲劳寿命具有显著影响；各应力比下其疲劳寿命均服从双参数Weibull分布.同时建立了不同失效概率下的概率型（p S N型）剪切疲劳方程.

关键词: 沥青稳定碎石剪切疲劳双面剪切 Weibull分布疲劳方程

DOI：103969/j.issn.1007 9629201801027

分类号:

基金项目:国家自然科学基金资助项目(50408007，50178012)；广东省交通运输厅科技项目(科技 2013 02 013)

Double Side Shear Fatigue Property of Anti cracking Asphalt Stabilized Macadam

TIAN Xiaoge¹, HAN Haifeng², LI Xinwei², ZHANG Qisen¹, LI Ye¹

1.School of Traffic & Transportation Engineering, Changsha University of Science & Technology, Changsha 410114, China;2.Guangzhou Highway Co., Ltd., Guangzhou 510288, China

Abstract:

In order to improve the anti cracking performance of asphalt stabilized macadam, the gradation of asphalt stabilized macadam was optimally designed with coarse aggregate gapped and semi opened gradation(ATB 25). Double sides shear fatigue tests under different stress ratio, namely 01, 02, 03, 04, 05 were carried out on ATB 25 beam samples. It is found that the stress ratio has a significant effect on the fatigue life, and the fatigue life under different stress ratios are all subject to the double parameter Weibull distribution, and the p S N type shear fatigue equations with different failure probability are established.

Key words: asphalt stabilized macadam shear fatigue double side shear Weibull distribution fatigue equation