抗裂型沥青稳定碎石的双面剪切疲劳性能研究
|
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.
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.
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.
引文
[1]陈璟.山西重载交通沥青路面结构与材料研究[D].西安:长安大学,2012.CHEN Jing.Study on the structure of asphalt pavement and material under heavy loads in Shanxi[D].Xi'an:Chang'an University,2012.(in Chinese)
[2]LI C,ZHOU H,WU Z,et al.Alleviating crack properties of crack alleviating mixture[C]//Second International Conference on Transportation Engineering.Chengdu:[s.n.],2009:1754-1759.
[3]钟梦武,蒋功雪,孙超林,等.ATB-25沥青混合料级配优化[J].公路工程,2011,36(6):1-5,21.ZHONG Mengwu,JIANG Gongxue,SUN Chaolin,et al.Optimization of aggregate gradation for ATB-25asphalt mixture[J].Highway Engineering,2011,36(6):1-5,21.(in Chinese)
[4]李立寒,袁坤,王太鑫.泡沫沥青稳定碎石混合料疲劳特性的试验研究[J].建筑材料学报,2010,13(5):129-132.LI Lihan,YUAN Kun,WANG Taixin.Study on the fatigue characteristic of mixtures treated by foamed asphalt[J].Journal of Building Materials,2010,13(5):129-132.(in Chinese)
[5]李骏.密级配沥青稳定碎石ATB-30组成设计与疲劳特性研究[D].西安:长安大学,2015.LI Jun.Study on dense graded asphalt stabilized macadam(ATB-30)design and fatigue properties[D].Xi'an:Chang'an University,2015.(in Chinese)
[6]陈飞,吴勇往,陈明,等.密级配沥青稳定碎石疲劳性能研究[J].公路,2011,59(4):162-166.CHEN Fei,WU Yongwang,CHEN Ming,et al.Fatigue performance of dense graded asphalt stabilized macadam[J].2011,59(4):162-166.(in Chinese)
[7]贾水彩,邵晓广.沥青稳定碎石抗疲劳性能研究[J].石油沥青,2012,26(3):4-8.(in Chinese)JIA Shuicai,SHAO Xiaoguang.Study on anti-fatigue performance of asphalt treatment base[J].Petroleum Asphalt,2012,26(3):4-8.(in Chinese)
[8]WU K H,ZHANG X N.Design of dense gap-graded friction course mixture[J].Journal of Southeast University,2006,22(1):101-105.
[9]JTG F40—2004公路沥青路面施工技术规范[S].JTG F40—2004 Technical specification for construction of highway asphalt pavement[S].(in Chinese)
[10]张福渊,郭邵建,萧亮壮,等.概率统计及随机过程[M].2版.北京:北京航空航天大学出版社,2012:96-105.ZHANG Fuyuan,GUO Shaojian,XIAO Liangzhuang,et al.Probability statistics and stochastic process[M].2nd ed.Beijing:Beihang University Press,2012:96-105.(in Chinese)
[2]LI C,ZHOU H,WU Z,et al.Alleviating crack properties of crack alleviating mixture[C]//Second International Conference on Transportation Engineering.Chengdu:[s.n.],2009:1754-1759.
[3]钟梦武,蒋功雪,孙超林,等.ATB-25沥青混合料级配优化[J].公路工程,2011,36(6):1-5,21.ZHONG Mengwu,JIANG Gongxue,SUN Chaolin,et al.Optimization of aggregate gradation for ATB-25asphalt mixture[J].Highway Engineering,2011,36(6):1-5,21.(in Chinese)
[4]李立寒,袁坤,王太鑫.泡沫沥青稳定碎石混合料疲劳特性的试验研究[J].建筑材料学报,2010,13(5):129-132.LI Lihan,YUAN Kun,WANG Taixin.Study on the fatigue characteristic of mixtures treated by foamed asphalt[J].Journal of Building Materials,2010,13(5):129-132.(in Chinese)
[5]李骏.密级配沥青稳定碎石ATB-30组成设计与疲劳特性研究[D].西安:长安大学,2015.LI Jun.Study on dense graded asphalt stabilized macadam(ATB-30)design and fatigue properties[D].Xi'an:Chang'an University,2015.(in Chinese)
[6]陈飞,吴勇往,陈明,等.密级配沥青稳定碎石疲劳性能研究[J].公路,2011,59(4):162-166.CHEN Fei,WU Yongwang,CHEN Ming,et al.Fatigue performance of dense graded asphalt stabilized macadam[J].2011,59(4):162-166.(in Chinese)
[7]贾水彩,邵晓广.沥青稳定碎石抗疲劳性能研究[J].石油沥青,2012,26(3):4-8.(in Chinese)JIA Shuicai,SHAO Xiaoguang.Study on anti-fatigue performance of asphalt treatment base[J].Petroleum Asphalt,2012,26(3):4-8.(in Chinese)
[8]WU K H,ZHANG X N.Design of dense gap-graded friction course mixture[J].Journal of Southeast University,2006,22(1):101-105.
[9]JTG F40—2004公路沥青路面施工技术规范[S].JTG F40—2004 Technical specification for construction of highway asphalt pavement[S].(in Chinese)
[10]张福渊,郭邵建,萧亮壮,等.概率统计及随机过程[M].2版.北京:北京航空航天大学出版社,2012:96-105.ZHANG Fuyuan,GUO Shaojian,XIAO Liangzhuang,et al.Probability statistics and stochastic process[M].2nd ed.Beijing:Beihang University Press,2012:96-105.(in Chinese)