中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2011, Vol. 30 ›› Issue (6): 1323-1326.DOI: 10.3969/j.issn.1674-0696.2011.06.15

• • 上一篇    下一篇

陡坡混凝土路面受力特性研究

杨锡武,葛运起   

  1. 重庆交通大学土木建筑学院,重庆400074
  • 收稿日期:2011-11-16 修回日期:2011-11-20 出版日期:2011-12-15 发布日期:2015-01-22
  • 作者简介:杨锡武(1963—),男,云南鹤庆人,教授,博士,主要从事路基路面工程方面的研究。E-mail:yangxw01@126.com。
  • 基金资助:
    交通运输部西部交通科技应用基础研究项目(2007319814150)

Experimental Investigation on Mechanical Characteristics of Steep Concrete Pavement

YANG Xi-wu,GE Yun-qi   

  1. School of Civie Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China
  • Received:2011-11-16 Revised:2011-11-20 Online:2011-12-15 Published:2015-01-22

摘要: 通过室内模型试验,测试了不同纵坡条件下混凝土板底和板表面的受力变化规律; 应用有限元方法,对试验结 果进行了分析对比。结果表明: 临界荷位处的板底最大拉应力随纵坡增大而减小,剪应力随纵坡的增大而增大; 同 一纵坡下,混凝土板底部的拉应力远大于其余各测点应力值。根据混凝土板应力随坡度的变化规律,提出了基于纵 坡影响的陡坡混凝土路面的纵坡坡度划分。

关键词: 陡坡急弯, 混凝土路面, 应力, 试验, 有限元计算

Abstract: The stress of bottom and surface of concrete plate were tested to proof influence of slope on the stress of plate and the finite element method is applied to analyse the tested plates and the calculation results are compared with the test results. The results show that with the longitudinal route slope increasing the biggest tensile stress in the bottom is decreases and the shear stress is increases,at same longitudinal route slope condition ,the tensile stress at the bottom of board is the biggest. Based on the changing law of the concrete board stress with slope,the slope value of need to consider the impact of longitudinal route slope on stress in pavement design is suggested in the paper.

Key words: steep slope, concrete pavement, stress, test, finite element calculation

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