Dynamic Response of Rigid Pavements due to Moving Vehicle Load with Acceleration

机译：车辆行进加速引起的刚性路面动力响应

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Dynamic response of rigid pavement subjected to moving vehicle load with variable velocity (accelerating or decelerating) is investigated in the paper. Rigid pavement is modeled by an infinite beam on viscoelastic foundation. Double Fourier Transform and inverse Fourier Transform technique and Convolution Theorem are employed to obtain the dual integral solution for the dynamic deflections of beam. A numerical calculation has been performed by Fast Fourier Transform (FFT) to illustrate the dynamic responses of the pavement under different moving conditions of vehicle. The effect of acceleration and deceleration of a moving wheel on the dynamic deflections of rigid pavement is discussed in detail. Numerical example results show that the velocity of the moving vehicle has greater effect on the maximum dynamic deflection of pavement when compared with the acceleration and deceleration, which has less effect on the maximum dynamic deflection. The latter mainly has less influence on the position and the timing of the maximum.

机译：本文研究了刚性路面在车辆负载变化（加速或减速）的情况下的动态响应。刚性路面是通过粘弹性地基上的无限大梁来模拟的。利用双傅立叶变换和傅立叶逆变换技术以及卷积定理来获得梁的动态挠度的对偶积分解。通过快速傅里叶变换（FFT）进行了数值计算，以说明车辆在不同行驶条件下人行道的动态响应。详细讨论了动轮的加减速对刚性路面动态变形的影响。数值算例结果表明，与加速和减速相比，行驶速度对路面最大动态挠度的影响更大，而对最大动态挠度的影响较小。后者主要对最大值的位置和时间影响较小。

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《Pavements and materials : Modeling, testing, and performance》|2008年|P.64-71|共8页
会议地点 Minneapolis MO(US)
作者
Changyong Cao; Wing Gun Wong; Yang Zhong; Lam Wah Cheung;
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作者单位

Department of Civil Engineering, Dalian University of Technology, Dalian 116024, China;

rnHong Kong Road Research Laboratory, The Hong Kong Polytechnic University, Hong Kong, China;

rnDepartment of Civil Engineering, Dalian University of Technology, Dalian 116024, China;

rnHong Kong Road Research Laboratory, The Hong Kong Polytechnic University, Hong Kong, China;

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原文格式 PDF
正文语种 eng
中图分类道路建筑材料;
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Dynamic Response of Rigid Pavements due to Moving Vehicle Load with Acceleration

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