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) ›› 2016, Vol. 35 ›› Issue (6): 30-33.DOI: 10.3969/j.issn.16740696.2016.06.07

• 道路与铁道工程 • 上一篇    下一篇

重载作用对混凝土路面板的弯沉及应力分析

辛勤1,孙吉书1,任晓军2,张小冉1   

  1. (1. 河北工业大学 土木工程学院,天津 300401;2.天津铁道职业技术学校,天津 300240)
  • 收稿日期:2015-06-25 修回日期:2015-09-25 出版日期:2016-12-25 发布日期:2016-12-29
  • 作者简介:辛勤(1987—),女,河北保定人,博士研究生,主要从事道路及结构工程方面的研究。Email:xinxin19870521@126.com。
  • 基金资助:
    河北省高等学校科学研究青年基金项目(Q2012156)

Overloading Effect on Concrete Pavement Deflection and Stress Analysis

XIN Qin1, SUN Jishu1, REN Xiaojun2, ZHANG Xiaoran1   

  1. (1. School of Civil Engineering, Hebei University of Technology, Tianjin 300401, P. R. China;2. Tianjin Railway Technical and Vocational College, Tianjin 300240, P. R. China)
  • Received:2015-06-25 Revised:2015-09-25 Online:2016-12-25 Published:2016-12-29

摘要: 运用ANSYS有限元软件建立路面结构三维实体模型,用正弦荷载模拟车辆随机荷载运动,分别就路面结构竖向位移及应力变化进行重载作用模拟分析;并分析超载率与脱空尺寸的影响。研究表明:动荷载作用下面板产生的弯沉值及板底最大拉应力值随着水泥混凝土路面板板底脱空区的面积增大而增大;超载率越大且脱空面积越大,板的竖向位移和拉应力增幅越大。

关键词: 道路工程, 动荷载, 力学响应, 有限元分析

Abstract: ANSYS software was used to establish 3D entity model of the pavement structure, and sine load was used to simulate the random load movement of the vehicle. The vertical displacement and stress change of the pavement structure under overloading were simulated and analyzed respectively. And then the effect of overloading rate and cavity size were also analyzed. The conclusion shows that: in the case of dynamic load, the panel deflection value and the bottom maximum tensile stress increase with the increment of the cavity size of the bottom plate board of concrete pavement; moreover, with the higher of overload rate and the larger of void area, the increase of the vertical deflection and tensile stress is greater.

Key words: highway engineering, dynamic load, mechanical response, finite element analysis

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