Solution and analysis of dynamic response for layered transversely isotropic structure of concrete pavement

WU Hongbin; YANG Linqing; ZHANG Yu

doi:10.13471/j.cnki.acta.snus.2019.09.12.2019B085

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Solution and analysis of dynamic response for layered transversely isotropic structure of concrete pavement

Research articles | 更新时间：2023-11-01

- Solution and analysis of dynamic response for layered transversely isotropic structure of concrete pavement
- Acta Scientiarum Naturalium Universitatis Sunyatseni Vol. 59, Issue 4, Pages: 109-119(2020)
- 作者机构：
  
  1.河南省收费还贷高速公路管理中心航空港管理处，河南郑州 450019
  2.中山大学土木工程学院，广东珠海 519082
- 作者简介：
- 基金信息：
- DOI：10.13471/j.cnki.acta.snus.2019.09.12.2019B085
  CLC： U416.221
- Published：20 July 2020，
  
  Received：12 September 2019，
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武鸿滨,杨林青,张宇.横观各向同性混凝土路面层状结构动力响应求解与分析[J].中山大学学报(自然科学版),2020,59(04):109-119.

WU Hongbin,YANG Linqing,ZHANG Yu.Solution and analysis of dynamic response for layered transversely isotropic structure of concrete pavement[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2020,59(04):109-119.
武鸿滨,杨林青,张宇.横观各向同性混凝土路面层状结构动力响应求解与分析[J].中山大学学报(自然科学版),2020,59(04):109-119. DOI： 10.13471/j.cnki.acta.snus.2019.09.12.2019B085.

WU Hongbin,YANG Linqing,ZHANG Yu.Solution and analysis of dynamic response for layered transversely isotropic structure of concrete pavement[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2020,59(04):109-119. DOI： 10.13471/j.cnki.acta.snus.2019.09.12.2019B085.

摘要

考虑到混凝土路面结构由于其形成工艺等原因而存在一定的横观各向同性属性，采用傅立叶积分方程变换方法求解得到频率域内弯沉盆动力刚度矩阵，进而采用混合变量算法求解得到时域内弯沉盆在落锤弯沉仪动荷载作用下的动力响应。文章算法在水平向可以得到解析表达，竖直向通过精细积分算法可以达到计算机意义上的精度。数值算例验证了文章算法的准确性，在此基础上针对路面结构和层状地基厚度以及材料属性进行了广泛的参数分析，以期为工程实际提供可靠的理论依据。

Abstract

Considering that concrete pavement structure has certain transverse isotropy property due to its formation process and other reasons

in this paper

the dynamic stiffness matrix of deflection basin in frequency domain is obtained by using Fourier integral equation transformation method

and then the dynamic response of deflection basin in time domain under dynamic load of Falling Weight Deflectometer is obtained by using mixed variable algorithm. The algorithm can be expressed analytically in horizontal direction

and precision in computer sense can be achieved by precise integration algorithm in vertical direction. Numerical examples verify the accuracy of the proposed algorithm. On this basis

extensive parametric analysis is carried out for bottom boundary condition of the pavement structure and the transversely isotropic property

so as to provide reliable analysis for engineering practice.

关键词

混凝土路面层状结构横观各向同性动力响应时域解

Keywords

concrete pavementlayered structuretransversal isotropydynamic responsethe time domain solution

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