特重荷载下水泥混凝土路面承载能力有限元仿真分析

doi:10.3969/j.issn.1000-1565.2017.06.001

河北大学学报(自然科学版) ›› 2017, Vol. 37 ›› Issue (6): 561-566.DOI: 10.3969/j.issn.1000-1565.2017.06.001

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特重荷载下水泥混凝土路面承载能力有限元仿真分析

杨三强,武文秀,刘娜,范晓雨

收稿日期:2016-11-07 发布日期:2017-11-25
作者简介:杨三强(1980—),男,四川绵阳人,河北大学教授,博士后,主要从事公路路基、路面材料工程方向研究. E-mail:ysq0999@163.com
基金资助:
河北省教育厅基金重点资助项目(ZD2016073);教育部中西部能力提升工程高层次引进人才项目

Ansys simulation analysis of cement concrete pavement bearing capacity under extra heavy load

YANG Sanqiang,WU Wenxiu,LIU Na,FAN Xiaoyu

College of Architectural Engineering, Hebei University, Baoding 071002, China

Received:2016-11-07 Published:2017-11-25

摘要/Abstract

摘要： 通过借助动力触探、自动落锤等检测手段,采用小挠度弹性薄板理论构建有限元模型进行承载力数值仿真分析.结果表明:相同特重荷载,不同厚度、不同强度等级的水泥混凝土路面在车轮作用处的最大变形量为0.375 4~0.657 9 mm;水泥混凝土道板厚度为10~25 cm、强度等级为C30~C50时,车轮作用处路面最大变形量显著减小;根据路面的全寿命设计周期,采用C40、25 cm厚的水泥混凝土道板.研究成果可为特重荷载下的水泥混凝土路面结构设计提供理论支撑.

关键词: 特重荷载, 水泥混凝土路面, 极限承载能力, 有限元仿真分析

Abstract: The finite element model of small deflection elastic thin plate was used to carry out the numerical simulation analysis of the bearing capacity by means of dynamic detection, automatic dropping hammer and other testing methods.The results show that the maximum deformation of cement concrete pavement on the wheel is between 0.375 4—0.657 9 mm at the same special heavy load, different thickness and different strength grades. The maximum deformation of the road surface at the wheel will be significantly reduced when the thickness of concrete slab is 10—25 cm and the strength is C30—C50. Thick concrete slab of C40 and 25 cm is used according to the life of the road design cycle. The results can provide theoretical support for the design of cement concrete pavement under extra heavy loads.

Key words: heavy load, cement concrete pavement, ultimate bearing capacity, finite element simulation analysis

中图分类号:

U419.91

杨三强,武文秀,刘娜,范晓雨. 特重荷载下水泥混凝土路面承载能力有限元仿真分析[J]. 河北大学学报(自然科学版), 2017, 37(6): 561-566.

YANG Sanqiang,WU Wenxiu,LIU Na,FAN Xiaoyu. Ansys simulation analysis of cement concrete pavement bearing capacity under extra heavy load[J]. Journal of Hebei University (Natural Science Edition), 2017, 37(6): 561-566.

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特重荷载下水泥混凝土路面承载能力有限元仿真分析

Ansys simulation analysis of cement concrete pavement bearing capacity under extra heavy load

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[1]	杨三强,刘娜,张帅,杜二霞. 荒漠地区耐久性沥青路面结构设计指标与路面结构力学分析[J]. 河北大学学报(自然科学版), 2016, 36(6): 574-582.
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