1. Introduction. 1.1. Ground-Borne vibrations. 1.2. Analytical approaches. 1.3. Field measurement. 1.4. Empirical prediction models. 1.5. Numerical simulation. 1.6. Isolation of ground vibrations. 1.7. Evaluation criteria of vibration. 1.8. Concluding remarks -- 2. Elastic waves in half-space due to vehicular loads. 2.1. Introduction. 2.2. Fundamentals of the problem. 2.3. Solution for the soil response. 2.4. Loading functions for moving loads of different forms. 2.5. Numerical studies and discussions. 2.6. Concluding remarks -- 3. 2D finite/infinite element method. 3.1. Introduction. 3.2. Formulation of the problem. 3.3. Shape functions and matrices of infinite element. 3.4. Mesh range and element size. 3.5. Mesh expansion by dynamic condensation. 3.6. Numerical examples. 3.7. Concluding remarks -- 4. Characteristics of foundation vibrations. 4.1. Introduction. 4.2. Dynamic stiffness and compliance of foundation. 4.3. Vibration of a Massless rigid strip foundation. 4.4. Vibration of rails and ground under harmonic loads. 4.5. Applications to practical problems. 4.6. Concluding remarks -- 5. Wave barriers for vibration isolation of foundations: parametric study. 5.1. Introduction. 5.2. Considerations in parametric studies. 5.3. Vibration isolation by elastic foundation. 5.4. Vibration isolation by open trenches. 5.5. Vibration isolation by in-filled trenches. 5.6. Effect of frequencies of traffic loads. 5.7. Concluding remarks -- 6. Vibration reduction of buildings located alongside railways. 6.1. Introduction. 6.2. Problem formulation and basic assumptions. 6.3. Scheme for generating finite/infinite element mesh. 6.4. Parametric studies for open trenches. 6.5. Parametric studies for in-filled trenches. 6.6. Effect of frequencies and soil conditions. 6.7. Concluding remarks -- 7. 2.5D finite/infinite element method. 7.1. Introduction. 7.2. Formulation of the problem and basic assumptions. 7.3. Procedure of derivation for finite/infinite elements. 7.4. Wave numbers for the case with moving loads. 7.5. Shape functions of infinite element. 7.6. Wave propagation properties for different vehicle speeds. 7.7. Selection of element size and mesh range. 7.8. Selection of wave number k'[symbol]. 7.9. Selection of amplitude decay factor [symbol] of displacement. 7.10. Verification of the present approach. 7.11. Case study. 7.12. Concluding remarks -- 8. Ground vibration due to moving loads: parametric study. 8.1. Introduction. 8.2. Measurement of vibration attenuation for soils. 8.3. Problem description and element meshes. 8.4. Parametric study for a uniform half-space. 8.5. Parametric study for single soil layer overlying a bedrock. 8.6. Parametric study for multi soil layers. 8.7. Concluding remarks -- 9. Wave barriers for reduction of train-induced vibrations: parametric study. 9.1. Introduction. 9.2. Major considerations in parametric studies. 9.3. Vibration reduction by open trenches. 9.4. Vibration reduction by in-filled trenches. 9.5. Vibration reduction by wave impeding block. 9.6. Comparison and discussion. 9.7. Concluding remarks -- 10. Soil vibrations caused by underground moving trains. 10.1. Introduction. 10.2. Problem formulation and basic assumptions. 10.3. Formulation of 2.5D finite/infinite element method. 10.4. Verification of the present approach. 10.5. Numerical modeling and related considerations. 10.6. Parametric study for an underground moving train. 10.7. Concluding remarks.

    For buildings and factories located near railway or subway lines, the vibrations caused by the moving trains, especially at high speeds, may be annoying to the residents or detrimental to the high-precision production lines. However, there is a lack of simple and efficient tools for dealing with the kind of environmental vibrations, concerning simulation of the radiation of infinite boundaries; irregularities in soils, buildings and wave barriers; and dynamic properties of the moving vehicles. This book is intended to fill such a gap


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Wave propagation for train-induced vibrations : a finite/infinite element approach



    Publication date :

    2009


    Size :

    1 Online-Ressource (xviii, 471 p)


    Remarks:

    ill
    Campusweiter Zugriff (Universität Hannover) - Vervielfältigungen (z.B. Kopien, Downloads) sind nur von einzelnen Kapiteln oder Seiten und nur zum eigenen wissenschaftlichen Gebrauch erlaubt. Keine Weitergabe an Dritte. Kein systematisches Downloaden durch Robots.
    Includes bibliographical references (p. 453-463) and index



    Type of media :

    Book


    Type of material :

    Electronic Resource


    Language :

    English



    Classification :

    DDC:    625