期刊论文

Double Side Shear Fatigue Property of Anti-cracking Asphalt Stabilized Macadam

中文

建筑材料学报

1007-9629

2018

21

1

165-168

10.3969/j.issn.1007-9629.2018.01.027

50408007:国家自然科学基金 50178012:国家自然科学基金 2013-02-013:广东省交通厅科技项目

本校为第一机构

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.

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-...