[1]郝培文,张兰峰.基于连续变温的沥青路面温度应力分析[J].西安建筑科技大学学报(自然科学版),2018,50(02):176-0183.[doi:10.15986/j.1006-7930.2018.02.004]
　HAO Peiwen,ZHANG Lanfeng,Asphalt pavement temperature stress analysis based on continuous variable temperature[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2018,50(02):176-0183.[doi:10.15986/j.1006-7930.2018.02.004]
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基于连续变温的沥青路面温度应力分析()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
50
期数:
2018年02期
页码:
176-0183
栏目:
出版日期:
2018-05-28

文章信息/Info

Title:
Asphalt pavement temperature stress analysis based on continuous variable temperature
文章编号:
1006-7930(2018)02-0176-08
作者:
郝培文;  张兰峰 
(长安大学 特殊地区公路工程教育部重点实验室,陕西 西安,710064)
Author(s):
HAO Peiwen  ;  ZHANG Lanfeng
( Key Laboratory of Highway Engineering in Special Region of Ministry of Education, Changan University, Xi an 710064, China)
关键词:
沥青路面; 温度场; 温度应力; 弹性模量; 温缩系数
Keywords:
asphalt pavement ;  temperature field;  temperature stress;  elastic modulus ;  temperature shrinkage coefficient
分类号:
U416.2
DOI:
10.15986/j.1006-7930.2018.02.004
文献标志码:
A
摘要:
为了合理评价温度对沥青路面结构应力影响，选取冬季3种典型连续变化日低温（T1、T2、T3）工况，考虑弹性模量及温缩系数随温度变化的特性，在此基础上建立低温下沥青路面三维有限元模型，分析降温、弹性模量及温缩系数参数对沥青路面温度应力的影响规律研究结果表明：在保持沥青面层弹性模量和温缩系数不变时，温度从T1～T2、T2～ T3降低过程中，沥青面层各层位温度应力都有显著增加，说明温度降低对沥青路面层的温度应力增加有重要作用在相同温度场作用下，沥青面层模量及面层温缩系数与沥青面层各层温度应力呈线性关系，当这两个参数增加时，温度应力随着线性增大所以道路结构设计过程中应充分考虑面层模量及面层温缩系数变化对温度应力的影响
Abstract:
In order to reasonably evaluate influence of temperature to asphalt pavement structure stress, select three typical continuously variable low temperature (T1, T2, T3) in winter , Considering the elastic modulus and temperature shrinkage coefficient changing with temperature characteristics，establish the three-dimensional finite element model of asphalt pavement under low temperature, analysis regulation of temperature stress of asphalt pavement among cooling, elastic modulus and temperature shrinkage coefficient parameters. Results show: when the elastic modulus and temperature shrinkage coefficient maintain the same, in the process of temperature reduced from T1 to T2, T2 to T3,temperature stress of different asphalt layer at has increased significantly, So reduction temperature play an important role to the temperature stress increases. Under the effect of the same temperature, elastic modulus and temperature shrinkage coefficient have a linea r relation with temperature stress, when these two parameters increase, temperature stress as the linear i ncrease. So the asphalt pavement design should fully consider influence elastic modulus and temperature shrinkage coefficient on the temperature stress

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备注/Memo

备注/Memo:
收稿日期:2017-03-22    修改稿日期:2018-04-10
基金项目:国家自然科学基金资助项目（50578016）
第一作者:郝培文（1967-），男，教授，主要研究沥青路面材料与结构、沥青与改性沥青技术、机场路面材料与施工技术等.
E-mail:haopw@yahoo.com.cn
更新日期/Last Update: 2018-05-28