| 沥青路面损伤分析及实验开发 |
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| 引用本文： | 孙雅珍,葛新,赵颖华.沥青路面损伤分析及实验开发[J].沈阳建筑工程学院学报(自然科学版),2004,20(1):14-16. |
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| 作者姓名： | 孙雅珍 葛新 赵颖华 |
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| 作者单位： | 沈阳建筑工程学院基础部，阜新市交通局质检站，沈阳建筑工程学院基础部 辽宁沈阳110168，辽宁阜新123000，辽宁沈阳110168 |
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| 基金项目： | 辽宁省自然科学基金资助项目(98108002) |
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| 摘 要： | 利用粘弹性与损伤的分析理论,对含表面裂缝沥青路面进行了有限元分析,计算了损伤区半径和裂缝长度的改变量随温度和加载时间的变化,得到不同加载时间和不同变温的损伤区和断裂区的分布情况,模拟了损伤区的演化和裂缝的扩展过程;通过复合材料理论和劈裂实验的比较,确定了含纤维沥青混凝土的劲度模量,同时对含纤维和不含纤维沥青混凝土路面的疲劳寿命进行了计算、分析和比较,提出了新型抗损伤沥青路面.
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| 关 键 词： | 粘弹性 损伤 损伤演化和裂缝扩展 新型抗损伤沥青路面 |
| 文章编号： | 1671-2021(2004)01-0014-03 |
| 修稿时间： | 2003年7月10日 |
Damage analysis of asphalt concrete pavement and research on new type fiber strengthened asphalt pavement |
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| SUN Ya-zhen,ZHAO Ying-hua.Damage analysis of asphalt concrete pavement and research on new type fiber strengthened asphalt pavement[J].Journal of Shenyang Archit Civil Eng Univ: Nat Sci,2004,20(1):14-16. |
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| Authors: | SUN Ya-zhen ZHAO Ying-hua |
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| Abstract: | Based on the viscoelastic damage theory, finite element analysis of asphalt concrete pavement with surface crack is made, radius of damage section and changing length of crack with load time and changing temperature are computed, distribution of damage and crack section is obtained, damage evolvement and crack growing process with load time and changing temperature are proposed. The comparison between the composite theory computing result and testing result is made and effective module of asphalt concrete containing fiber is proposed. Fatigue life of pavement with surface crack is computed by viscoelastic damage mechanics. Results show that fatigue span of pavement increase and possess very high economic value. |
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| Keywords: | viscoelastic and damage damage evolvement and crack growing fiber strengthened asphalt pavement |
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