Dynamics Of Railway Bridges

Provides a survey of the dynamic stresses in railway bridges under moving vehicles. This book investigates both bridge and moving railway vehicles and describes the effect of parameters, such as the speed of vehicles, track irregularities, on the dynamic behaviour of bridges, and is useful for civil and railway engineers and researchers.

The commercial operation of the bullet train in 1964 in Japan markedthe beginning of a new era for high-speed railways. Because of thehuge amount of kinetic energy carried at high speeds, a train mayinteract significantly with the bridge and even resonate with it undercertain circumstances. Equally important is the riding comfort of thetrain cars, which relates closely to the maneuverability of the trainduring its passage over the bridge at high speeds.

This book presents both the fundamental theory and numerical calculations and field experiments used in a range of practical engineering projects. It not only provides theoretical formulations and various solutions, but also offers concrete methods to extend the life of existing bridge structures and presents a guide to the rational design of new bridges, such as high-speed railway bridges and long-span bridges. Further, it offers a reference resource for solving vehicle–structure dynamic interaction problems in the research on and design of all types of highways, railways and other transport structures.

The dynamic behaviour of bridges strongly affects the infrastructure system of high-speed railways, and is a crucial factor in safety issues and passenger comfort. Dynamics of High-Speed Railway Bridges covers the latest research in this field, including: Recently developed dynamic analysis techniques; Train excitations; Design issues fo

Dynamics of Railway Vehicle Systems offers a comprehensive and analytical treatment of the rail-wheel interaction problem and its effect on vehicle dynamics. The development of mathematical models and their applications to dynamic analyses and the design of railway vehicles are discussed. This book consists of 11 chapters and opens with an overview of the background material required to study the dynamics of railway vehicles, with emphasis on analytical techniques used to determine the dynamic response of single- and multiple-degree-of-freedom systems. Numerical solutions of linear and nonlinear dynamic systems are also given, and various problems associated with the dynamic behavior of railway vehicles are addressed. Several mathematical models are proposed to study these problems. The following chapters focus on the wheel-rail rolling contact theories being applied in railway vehicle dynamics problems; modeling of the vehicle and its components on both tangent and curved railroad tracks; and the interaction between railway vehicles and bridges. The final chapter underscores the needs for validating mathematical models that are used to study the dynamic behavior of railway vehicles and train consists. This monograph will be of value to design and research engineers, transportation officials, mathematicians, analysts, and research workers interested in the dynamics of railway vehicle systems.

Analysis and Design of Railway Bridges brings together the analytical tools and design methods necessary to accurately interpret the complex design requirements in the selection process and construction of robust railway bridges. When designing railway bridges, design engineers must face a number of unique structural challenges such as: dead load of the structure, live loads from the carried, frequency of traffic, and dynamic components of the traffic such as impact, centrifugal, lateral, and longitudinal forces. This means the use of complex modeling tools for the selection of proper design criteria. This reference provides a clear and rigorous exposition of the various codes which govern design including: American Association of State Highway and Transportation Officials, American Railroad Engineering and Maintenance-of-Way Association, Federal Highway Administration and the Eurocode for dynamic factor, dynamic loading and load combinations, bridge parameters, modelling of excitation and dynamic behaviour, and verification for fatigue. Explains codes including: American Association of State Highway and Transportation Officials, American Railroad Engineering and Maintenance-of-Way Association, Federal Highway Administration, and the Eurocode Addresses the unique aspects of railway bridge modeling such as: bridge and train modeling techniques, substructure details, structural steel details, prestressed concrete details, and bridge railing and approach rail details Includes design and analysis methods and calculations as well as applications and solved examples Provides the analytical tools and design methods necessary to interpret complex design requirements

Originally published in 1934, this book studies the dynamic effects in railway bridges, produced by the action of locomotives and other moving loads.