路面结构平衡的破坏接近度分析

山东大学学报(工学版) ›› 2012, Vol. 42 ›› Issue (6): 74-79.

路面结构平衡的破坏接近度分析

朱登元1,2,姚占勇1*,管延华1,庄培芝1

1. 山东大学土建与水利学院, 山东济南 250061; 2. 临沂大学建筑学院, 山东临沂 276005

收稿日期:2012-01-09 出版日期:2012-12-20 发布日期:2012-01-09
通讯作者: 姚占勇(1966- ),男,山东临沂人,教授,博士生导师,主要研究方向为路基路面结构与材料.E-mail:zhanyong-y@sdu.edu.cn
作者简介:朱登元(1971- ),男,山东沂南人,研究员,博士研究生,主要研究方向为路基路面结构与材.E-mail:zhudengyuan@lyu.edu.cn
基金资助:
山东大学自主创新基金资助项目(2012ZD032)

Balance analysis of the pavement structure based on failure approach index

ZHU Deng-yuan1, 2, YAO Zhan-yong1*, GUAN Yan-hua1, ZHUANG Pei-zhi1

1. School of Civil Engineering, Shandong University, Jinan 250061, China; 2.School of Civil Engineering and Architecture, Linyi University, Linyi 276005, China

Received:2012-01-09 Online:2012-12-20 Published:2012-01-09

摘要/Abstract

摘要： 为了优化路面结构设计,合理匹配路面结构层,提出了基于破坏接近度的路面结构平衡优化设计方法。结合某等级路路面结构和受力特点,构建了三维模型,采用Abaqus有限元分析软件,对道路路面结构在车辆荷载作用下的位移、应力、应变和塑性响应进行了分析,并计算了路面各结构层、路基处治层的破坏接近度,对比分析了破坏接近度与疲劳寿命预估、层间刚度比。结果表明基于破坏接近度的路面结构平衡优化设计方法能够很好地反映荷载作用下路面结构的平衡性。

关键词: 破坏接近度, 路面结构平衡, 疲劳寿命, 层间模量比

Abstract: The design method based on failure approach index was proposed to optimize the pavement structure. Three-dimensional model were built according to typical pavement structure of the grade road and loads. Based on Abaqus numerical analysis method, the distance, the stress, the strain and the plastic analysis of pavement structure layers with vehicle loads were put forth. Failure approach index was calculated for each layer of the pavement and treatment layer of the subgrade. Comparison and analysis among the failure approach index, the predicted fatigue life and the modular ratio of different layers were done. The result demonstrated that the failure approach index could represent the balance property of the pavement structure layers.

Key words: failure approach index, pavement structure balance, fatigue life, layer modular ratio

中图分类号:

TU 416

朱登元1,2,姚占勇1*,管延华1,庄培芝1. 路面结构平衡的破坏接近度分析[J]. 山东大学学报(工学版), 2012, 42(6): 74-79.

ZHU Deng-yuan1, 2, YAO Zhan-yong1*, GUAN Yan-hua1, ZHUANG Pei-zhi1. Balance analysis of the pavement structure based on failure approach index[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2012, 42(6): 74-79.

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