| 低温下基于断裂力学的ISAC防反射裂缝 |
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| 引用本文： | 范振兴.低温下基于断裂力学的ISAC防反射裂缝[J].大连交通大学学报,2012,33(3):51-53. |
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| 作者姓名： | 范振兴 |
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| 作者单位： | 北京市市政专业设计院股份公司,北京,100037 |
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| 摘 要： | 为了有效解决在使用CC-AC复合式路面时出现反射裂缝的问题,对设置复合式应力吸收夹层(Interlayer Stress Absorbing Composite,简称ISAC)的复合式路面结构的力学响应及结构设计方法进行系统研究.根据断裂力学理论,重点针对低温不利情况,通过计算设与不设ISAC复合式路面结构最不利位置的应力强度因子,分析了ISAC的防裂优势.
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| 关 键 词： | 复合式路面 复合式应力吸收夹层(ISAC) 应力强度因子 低温 反射裂缝 |
Study of Anti-Reflective-Cracking of ISAC Based on Fracture Mechanics in Low-Temperature |
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| FAN Zhen-xing.Study of Anti-Reflective-Cracking of ISAC Based on Fracture Mechanics in Low-Temperature[J].Journal of Dalian Jiaotong University,2012,33(3):51-53. |
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| Authors: | FAN Zhen-xing |
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| Institution: | FAN Zhen-xing(China Railway Fifth Survey and Design Institute Group CO.,Ltd,Beijing 102600,China) |
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| Abstract: | To effectively solve the problem of reflective crackings before using CC-AC composite pavement,the compound road which set ISAC(Interlayer Stress Absorbing Composite) is studied,and systematically the road mechanical responses and the structural design method are discussed.Focusing on unfavorable conditions of the low-temperature based on fracture mechanics theory,the ISAC advantages of preventing reflective crack are analysed by calculating the stress intensity factor of the composite pavement with and without seting ISAC at the most unfavorable position. |
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| Keywords: | composite pavement ISAC stress intensity factor low temperature reflective crack |
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