William Bowden - Böcker

Movable Bridge Design provides a fascinating and comprehensive guide of both past and current approaches to the design of a wide range of movable bridges.Against the background of worldwide development, the author provides the necessary information on the mechanical systems that drive movable bridges. A wide range of structures are explored in an accessible format to be used at a practical level.Key topics of focus are:Design specifications and standardsMachinery required to operate and stabilise movable spansTraditional and non-traditional superstructure formsMaterials of constructionMaterial strength and failureExamples of hydraulic, electrical and mechanical systemsMovable Bridge Design considers both city and rural movable bridges by providing worldwide examples, as well as discussing the various forms of motive power. This is an essential purchase to inform and guide engineers, engineering consultants, and administrators of governmental agencies, as well as students from these disciplines.

This book surveys a variety of themes relating to the late antique countryside. It covers social and economic life, the archaeology of pilgrimage and the fate of rural temples, villas, monasteries and landscape change. There is a special section on rural survey in Turkey, a region of the Roman empire for which our knowledge of the countryside is poor. A bibliographic essay, on the rural archaeology of the entire empire, provides an excellent introduction to the volume and to the subject as a whole. Essays range from Northern Gaul to Egypt and draw on many sources: from papyrology and epigraphy to field survey and paleobotany. A complex picture of differing regional trajectories emerges, whilst cultural change is everywhere apparent, in phenomena such as Christianisation, settlement nucleation and fortification. Contributors include Beat Brenk, Beatrice Caseau, Douglas Baird, Archie Dunn, Etienne Louis, Fabio Saggioro, John Mitchell, Joseph Patrich, Lynda Mulvin, Carla Sfameni, Marcus Rautman, Peter Sarris, Frank Trombley, Joanita Vroom and Marc Waelkens.