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Dynamic response of pavement systems...

Kim, Seong-Min.

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Dynamic response of pavement systems to moving loads.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Dynamic response of pavement systems to moving loads./
作者:	Kim, Seong-Min.
面頁冊數:	327 p.
附註:	Source: Dissertation Abstracts International, Volume: 57-09, Section: B, page: 5795.
Contained By:	Dissertation Abstracts International57-09B.
標題:	Applied Mechanics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9705877
ISBN:	0591127660

Dynamic response of pavement systems to moving loads.
Kim, Seong-Min.

Dynamic response of pavement systems to moving loads. - 327 p.

Source: Dissertation Abstracts International, Volume: 57-09, Section: B, page: 5795.

Thesis (Ph.D.)--The University of Texas at Austin, 1996.

The main objective of this work was to investigate the dynamic response of pavement systems subjected to moving constant and harmonic loads with a constant advance velocity. The behavior of simpler one or two dimensional models of pavement systems such as a beam on elastic foundation and a plate on elastic foundation subjected to moving loads was first investigated in order to compare their results with those of the more rigorous models. For the simple models, analytical solutions were obtained in the transformed field domain using the Fourier transform as well as numerical solutions using the finite element discretization. An alternative formulation was introduced using the response to an impulse load with an exact or a simplified linearized loading function and superposition. The response of pavement systems was obtained using this superposition method. To find the response to an impulse load, the formulation based on the discrete Green's function for harmonic loads and the Fourier transform was used. Studies of the effect of various parameters such as velocity, depth to bedrock, layer stiffness and load frequency were conducted. Comparison of the response of pavement systems and of simpler models was conducted and formulae to find the relations between them were developed. The action of a recently developed nondestructive testing device, called the Rolling Dynamic Deflectometer (RDD), which applies a steady state harmonic load while it moves, was simulated. The dynamic response of typical flexible and rigid pavements to loads imposed by the RDD was investigated.

ISBN: 0591127660Subjects--Topical Terms:

1018410
Applied Mechanics.

Dynamic response of pavement systems to moving loads.
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520 $a The main objective of this work was to investigate the dynamic response of pavement systems subjected to moving constant and harmonic loads with a constant advance velocity. The behavior of simpler one or two dimensional models of pavement systems such as a beam on elastic foundation and a plate on elastic foundation subjected to moving loads was first investigated in order to compare their results with those of the more rigorous models. For the simple models, analytical solutions were obtained in the transformed field domain using the Fourier transform as well as numerical solutions using the finite element discretization. An alternative formulation was introduced using the response to an impulse load with an exact or a simplified linearized loading function and superposition. The response of pavement systems was obtained using this superposition method. To find the response to an impulse load, the formulation based on the discrete Green's function for harmonic loads and the Fourier transform was used. Studies of the effect of various parameters such as velocity, depth to bedrock, layer stiffness and load frequency were conducted. Comparison of the response of pavement systems and of simpler models was conducted and formulae to find the relations between them were developed. The action of a recently developed nondestructive testing device, called the Rolling Dynamic Deflectometer (RDD), which applies a steady state harmonic load while it moves, was simulated. The dynamic response of typical flexible and rigid pavements to loads imposed by the RDD was investigated.
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