Найти книгу: "Ballastless Tracks"

Due to increasing traffic flows the extension of transport infrastructure with rail roads and high speed lines is an ongoing process worldwide. Ballastless track systems with concrete slabs are used more and more. Following the first trials in the 1970s and more than four decades of R&D work on ballastless track, the level of development is such that it can be confirmed that ballastless track is suitable for use as an alternative to ballasted track. This book makes a contribution to the state of the art of ballastless track by describing the basics for designing the ballastless track. Important advice is provided regarding the construction of ballastless track on earthworks and in tunnels. There is also a description of the technical history of the development of ballastless track on bridges and the ensuing findings for bridge design. The state of the art of ballastless track for switches, important information on details concerning drainage, transitions, accessibility for road vehicles and experience gleaned from maintenance round off the work. Selected chapters from the German concrete yearbook are now being published in the new English «Beton-Kalender Series» for the benefit of an international audience. Since it was founded in 1906, the Ernst & Sohn «Beton-Kalender» has been supporting developments in reinforced and prestressed concrete. The aim was to publish a yearbook to reflect progress in «ferro-concrete» structures until – as the book's first editor, Fritz von Emperger (1862-1942), expressed it – the «tempestuous development» in this form of construction came to an end. However, the «Beton-Kalender» quickly became the chosen work of reference for civil and structural engineers, and apart from the years 1945-1950 has been published annually ever since.

In the ebook version of the classic, the author of 'Footsteps' collects the biographical stories that have captured his fancy in the course of researching his books on the romantic poets, creating a captivating mixture of biography and memoir.‘Sidetracks' is a sister book to 'Footsteps', conjured up from decades of 'wanderings from the straight and narrow' of his major biographies like Shelley and Coleridge. The collection is held together by a subtle autobiographical thread: 'to be sidetracked is, after all, to be led astray by a path or an idea, a scent or a tune, and maybe lost forever.'The centerpiece of book concerns Mary Woolstonecraft, the great feminist crusader and philosopher, and her relationship with William Godwin. Their story and travails are inspiring and poignant, all told in riveting and beautiful prose style.'Sidetracks' winds through an extraordinary and eclectic assortment of Romantic and Gothic writers and personalities: some French, some English, some Dutch, some American, some major, some minor, but all made hypnotically alive and memorable through Holmes's transforming touch. We meet Chatterton and Gautier, Pierrot and Voltaire, Mary Wollstonecraft and Godwin, Scott Fitzgerald and Zelda, James Boswell and Zelide, MR James and some very unpleasant gothic apparitions.With each of these twenty pieces Holmes shows how fluid, playful and unconstrained the many voices of biography can be. The book includes two documentary radio-plays, many different kinds of character sketch and travelogue, true love stories and true ghost stories, and one piece, 'Dr Johnson's First Cat' which may or may not be a piece of true biographical fiction.'Sidetracks' is a renewed examination of the strange and sometimes shadowy pathways of biography that have always fascinated Holmes.

A concise reference that provides an overview of the design of high speed off-road vehicles High Speed Off-Road Vehicles is an excellent, in-depth review of vehicle performance in off-road conditions with a focus on key elements of the running gear systems of vehicles. In particular, elements such as suspension systems, wheels, tyres, and tracks are addressed in-depth. It is a well-written text that provides a pragmatic discussion of off-road vehicles from both a historical and analytical perspective. Some of the unique topics addressed in this book include link and flexible tracks, ride performance of tracked vehicles, and active and semi-active suspension systems for both armoured and unarmoured vehicles. The book provides spreadsheet-based analytic approaches to model these topic areas giving insight into steering, handling, and overall performance of both tracked and wheeled systems. The author further extends these analyses to soft soil scenarios and thoroughly addresses rollover situations. The text also provides some insight into more advanced articulated systems. High Speed Off-Road Vehicles: Suspensions, Tracks, Wheels and Dynamics provides valuable coverage of: Tracked and wheeled vehicles Suspension component design and characteristics, vehicle ride performance, link track component design and characteristics, flexible track, and testing of active suspension test vehicles General vehicle configurations for combat and logistic vehicles, suspension performance modelling and measurement, steering performance, and the effects of limited slip differentials on the soft soil traction and steering behavior of vehicles Written from a very practical perspective, and based on the author’s extensive experience, High Speed Off-Road Vehicles provides an excellent introduction to off-road vehicles and will be a helpful reference text for those practicing design and analysis of such systems.