Dynamics of Pavement Structures  book cover
1st Edition

Dynamics of Pavement Structures




  • This product is currently out of stock.
ISBN 9780419181002
Published December 6, 1994 by CRC Press
440 Pages

FREE Standard Shipping
USD $625.00

Prices & shipping based on shipping country


Preview

Book Description

This book presents a rigorous treatment of the fundamental, mathematical behaviour of pavement structures under dynamic loading. The topic is of growing importance in economic design of aircraft runways and highway pavements. A range of modelling approaches are presented and compared with experimental data.

Table of Contents

Preface

List of Symbols

Introduction

Dynamic diagnosis of pavement structures

Stress-wave velocity measurement technique

Theoretical assumptions

Mechanical impedance methods

Complex modulus of elasticity

Function of mechanical impedance

Measurement method

Experimental apparatus

Application to non-destructive testing of the subgrade

Dynamic viscoelastic properties of bituminous materials

Dynamic viscoelastic properties of soil materials

Dynamic diagnosis of subgrade

Application of the phase velocity method

Application of the mechanical impedance method

Diagnosis of dynamic elasticity and rigidity of layered pavement structures

Determination of the characteristics of rigidity and elasticity using detailed measurement

Simplified procedures for the assessment of the elasticity and rigidity characteristics of pavement structures

Evaluation of the rigidity of layered pavements using deflection determined by means of stress-wave velocities

Diagnosis of dynamic elasticity and rigidity of highway pavement sections

Testing pavements under construction

Influence of base and sub-base layers on the overall rigidity of pavement structures

Model of the equivalent plate on subgrade

Calculation of cross-section quantities of equivalent plate and calculation of stress in layered pavement structures

Calculation of stress layered structures with defective layer contact

Coherence of layered pavement stiffness with the characteristics of the equivalent plate

Variations of normal and tangential stress for highway cement concrete pavements with perfect layer contact

Variants of the dynamic theory of the equivalent plate on subgrade

Layer in contact with the half-space

Torsional vibration of layer on viscoelastic half-space

Torsional vibration of mass on layered half-space

Vertical vibration of layer on viscoelastic half-space

Stress waves in layer on half-space without shear contac

Boundary and contact conditions at the interface

Frequency equation

Curves of dispersion for stress-wave phase velocities

Numerical results

Plate on half-space without shear contact

Conditions at the interface of plate and half space

Normal dynamic load on circular contact area

Deflection of plate

Bending moments of equivalent plate

Transverse forces on equivalent plate

Reaction of subgrade

Numerical calculation of components of state vector for highway pavement under construction or completed

Comparison of deflections and stresses in layered pavements according to theory of equivalent plate on subgrade and theory of layered half-space

Technical theory of plate on subgrade

Dynamic simplified model of soil base

Dispersion curve for stress-wave phase velocities and coefficient of equivalent inertia

Axial symmetric dynamic load of unbounded plate on subgrade

Solution in integral form

Solution in closed form

Compensation of subgrade inertia by coefficient of mass increase of plate

Components of the state vector under a dynamic load uniformly distributed on a circular area

Physical model of thin plate on subgrade with rigidity defined by the dispersion curve for flexural stress waves

Numerical waves

Dynamic interaction of plates with the subgrade for characteristic loads

The applied variant of the theory of an equivalent plate on subgrade

Reduction of partial differential equation to an ordinary differential equation

Application of the method of initial parameters

Dynamic load at the boundary region of a plate on subgrade

Half-plate on subgrade

Survey of relationships for state vector components of a half-plate on subgrade

Numerical results

Plate strip on subgrade

Survey of relationships for state vector components of a half-plate subgrade

Numerical results

Dynamic stress state near cut transverse joints of plate subgrade

Influence functions of half-space on subgrade with initial parameters of transverse force FQ0 and bending moment FM0

Determination of unknown initial parameters for transverse force FQ0

Numerical results

Influence of inhomogeneous subgrade on dynamic interaction of plate with subgrade

Results of the dynamic diagnosis of highway pavement at the site of failure cracks in concrete surfacing

Influence of sudden change of rigidity in equivalent plate on subgrade

Numerical results

Sudden change of rigidity situated parallel to free boundary of half-plate on subgrade

Comparison of extreme values of flexural moments and subgrade reactions

Pulse (impact) of equivalent plate on subgrade

Dynamic response of plate on subgrade as an analogue of flexible pavement structure

Dynamic interaction of plate with subgrade under a moving load

Physical model of plate on subgrade as dynamic equivalent of the pavement

Load moving along boundary of half-plate on subgrade

Numerical results

Influence of unevennesses on dynamic response

Influence of periodical surfacing unevennesses under moving load

Influence of periodical surfacing unevennesses by moving load system with two degrees of freedom

Influence of isolated surfacing unevennesses by moving load system with two degrees of freedom

Numerical results

Effect of moving random load

Numerical results

The dynamic response of plates with free boundaries on unbounded soil base

Fundamental solutions for plate and subgrade

Boundary integral formulation according to theorem of reciprocit

Boundary conditions

Integral formulations for an internal point of plate and subgrade

Boundary integral equations

Relations for the calculation of internal forces and moments in plate on subgrade under virtual unit force and moment loads

Solution of boundary integral equations using boundary elements

Numerical results

Square plate on subgrade

Rectangular plate on subgrade

Evaluation of application of boundary element method

Effect of pulse loads

Concentration of vibration about holes in plate on subgrade

Integral formulations according to theorem of reciprocity

Boundary conditions

Boundary integral equations

Solution of integral equations using boundary elements

Numerical results

Diffraction of stress waves in plate on subgrade with rectangular hole

Influence of length of lateral sides of rectangular hole on resonance regions and vibration concentration

Influence of the length of frontal sides of rectangular hole on resonance regions

Influence of rectangular hole in plate on subgrade by pulse propagation

Numerical results

Non-linear dynamic response of unbounded plate on subgrade

Dynamic deflection of unbounded plate on non-linear soil base under a stationary load

Non-stationary vibration problems of an unbounded plate on subgrade

Non-linear non-stationary vibration of a plate on subgrade

Numerical applications

Effect of a trapezoid-shaped pulse

Bending moment in plate on subgrade and subgrade reaction due to an instantaneous pulse load

Effects of vibration-isolating barriers on propagation of vibration in soil bases

Application of boundary element method

Simplified dynamic model of subgrade and fundamental solution

Boundary integral formulation according to Rayleigh’s theorem of reciprocity

Barriers of different materials

Effect of a linear barrier

Influence of various barrier rigidities on vibration isolation

Influence of various barrier thickness on vibration isolation

Dynamic deflection field around barrier

Trench barriers

Linear trench barriers

Sheet piling barriers

Linear sheet piling barriers

Closed circular sheet piling barriers

Screening effect for pulse loads

References

Appendix 1

Appendix 2

Appendix 3

Index

...
View More

Author(s)

Biography

Martincek, Gustav

Reviews

"Dynamics of Pavement Structures is the first to present a systematic approach to the analysis of pavement systems from a dynamic point of view...it should find its way into engineering libraries for its comprehensive treatment of dynamics". - Applied Mechanics Reviews