工程力学 ›› 2020, Vol. 37 ›› Issue (2): 134-144.doi: 10.6052/j.issn.1000-4750.2019.01.0122

• 土木工程学科 • 上一篇    下一篇

基于半解析有限元的水泥路面荷载响应分析

沈凯仁, 陈先华, 周杰, 张含宇   

  1. 东南大学交通学院, 南京 210096
  • 收稿日期:2019-03-18 修回日期:2019-05-27 出版日期:2020-02-25 发布日期:2020-01-19
  • 通讯作者: 陈先华(1976-),男,安徽人,教授,博士,博导,主要从事道路与铁道工程研究(E-mail:chenxh@seu.edu.cn). E-mail:chenxh@seu.edu.cn
  • 作者简介:沈凯仁(1996-),男,江西人,硕士生,主要从事道路与铁道工程研究(E-mail:shenkr@seu.edu.cn);周杰(1992-),男,江苏人,博士生,主要从事道路与铁道工程研究(E-mail:zhoujie@seu.edu.cn);张含宇(1996-),男,重庆人,硕士生,主要从事道路与铁道工程研究(E-mail:hy_zhang@seu.edu.cn).
  • 基金资助:
    国家自然科学基金面上项目(51778136)

STUDY OF THE CEMENT PAVEMENT MECHANICAL RESPONSE USING THE SEMI-ANALYTICAL FINITE ELEMENT METHOD

SHEN Kai-ren, CHEN Xian-hua, ZHOU Jie, ZHANG Han-yu   

  1. School of Transportation, Southeast University, Nanjing 210096, China
  • Received:2019-03-18 Revised:2019-05-27 Online:2020-02-25 Published:2020-01-19

摘要: 基于半解析有限元原理和MATLAB软件,开发了水泥路面荷载响应分析程序CP-SAFEM(cementpavement semi-analytical finite element method)。将CP-SAFEM应用到具体工况中,与现行规范和ABAQUS进行了荷载应力的对比验证。结果表明:对于单层板路面,CP-SAFEM与规范公式计算结果误差不超过1%;对于双层板路面,CP-SAFEM与规范公式计算结果误差约为6%; CP-SAFEM与ABAQUS各项力学响应计算结果最大误差不超过5%;当横断面采用相同的网格划分时,CP-SAFEM的计算时间为ABAQUS的1/6;以弯拉应力作为力学指标确定了水泥路面的临界荷位。各项研究表明CP-SAFEM具有良好的计算精度和运算效率。

关键词: 道路工程, 荷载响应, 半解析有限元, 水泥混凝土路面, MATLAB

Abstract: Using the semi-analytical finite element method and MATLAB, a mechanical analysis program CP-SAFEM (cement pavement semi-analytical finite element method) for cement concrete pavements was developed. Based on various engineering cases, the analysis results from CP-SAFEM were compared with the current standards and ABAQUS. The results indicate that the calculation error between the CP-SAFEM and the standards was less than 1% for single-layer pavements, and approximately 6% for double-layer pavements. In addition, the error between CP-SAFEM and ABAQUS was less than 5%. With the same meshing scheme in the pavement cross section, the computation time of CP-SAFEM was only 1/6 of that of ABAQUS. Furthermore, the critical loading position was determined by the tensile stress of the panel. As a result, the CP-SAFEM was proven to have adequate computational accuracy and efficiency.

Key words: pavement engineering, load response, semi-analytical finite element method, cement concrete pavement, MATLAB

中图分类号: 

  • U416.216
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