Timber Bridge Structures
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Timber Bridges
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Author : Michael A. Ritter
language : en
Publisher:
Release Date : 1990
Timber Bridges written by Michael A. Ritter and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Bridges, Wooden categories.
This report presents a comprehensive analysis of the design, construction, inspection, and maintenance of timber bridges.
Timber Bridges
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Author : Michael A. Ritter
language : en
Publisher:
Release Date : 2005
Timber Bridges written by Michael A. Ritter and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Technology & Engineering categories.
Timber's strength, light weight, and energy-absorbing properties furnish features desirable for bridge construction. Timber is capable of supporting short-term overloads without adverse effects. Contrary to popular belief, large wood members provide good fire resistance qualities that meet or exceed those of other materials in severe fire exposures. From an economic standpoint, wood is competitive with other materials on a first-cost basis and shows advantages when life cycle costs are compared. Timber bridges can be constructed in virtually any weather conditions, without detriment to the material. Wood is not damaged by continuous freezing and thawing and resists harmful effects of de-icing agents, which cause deterioration in other bridge materials. Timber bridges do not require special equipment for installation and can normally be constructed without highly skilled labor. They also present a natural and aesthetically pleasing appearance, particularly in natural surroundings. The misconception that wood provides a short service life has plagued timber as a construction material. Although wood is susceptible to decay or insect attack under specific conditions, it is inherently a very durable material when protected from moisture. Many covered bridges built during the 19th century have lasted over 100 years because they were protected from direct exposure to the elements. In modem applications, it is seldom practical or economical to cover bridges; however, the use of wood preservatives has extended the life of wood used in exposed bridge applications. Using modem application techniques and preservative chemicals, wood can now be effectively protected from deterioration for periods of 50 years or longer. In addition, wood treated with preservatives requires little maintenance and no painting. Another misconception about wood as a bridge material is that its use is limited to minor structures of no appreciable size. This belief is probably based on the fact that trees for commercial timber are limited in size and are normally harvested before they reach maximum size. Although tree diameter limits the size of sawn lumber, the advent of glued-laminated timber (glulam) some 40 years ago provided designers with several compensating alternatives. Glulam, which is the most widely used modem timber bridge material, is manufactured by bonding sawn lumber laminations together with waterproof structural adhesives. Thus, glulam members are virtually unlimited in depth, width, and length and can be manufactured in a wide range of shapes. Glulam provides higher design strengths than sawn lumber and provides better utilization of the available timber resource by permitting the manufacture of large wood structural elements from smaller lumber sizes. Technological advances in laminating over the past four decades have further increased the suitability and performance of wood for modern highway bridge applications.
Timber Bridges
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Author : Christopher J. Mettem
language : en
Publisher: Routledge
Release Date : 2013-04-15
Timber Bridges written by Christopher J. Mettem and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-15 with Technology & Engineering categories.
Bridges built in timber are enjoying a significant revival, both for pedestrian and light traffic and increasingly for heavier loadings and longer spans. Timber's high strength-to-weight ratio, combined with the ease and speed of construction inherent in the off-site prefabrication methods used, make a timber bridge a suitable option in many different scenarios. This handbook gives technical guidance on forms, materials, structural design and construction techniques suitable for both small and large timber bridges. Eurocode 5 Part Two (BS EN 1995-2) for the first time provides an international standard for the construction of timber bridges, removing a potential obstacle for engineers where timber construction for bridges has not – in recent centuries at least – been usual. Clearly illustrated throughout, this guide explains how to make use of this oldest construction material in a modern context to create sustainable, aesthetically pleasing, practical and durable bridges. Worldwide examples include Tourand Creek Bridge, Canada; Toijala, Finland; Punt la Resgia, Switzerland; Pont de Crest, France; Almorere Pylon Bridge, the Netherlands.
Timber Bridge Structures
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Author : J.F. Seiler
language : en
Publisher:
Release Date : 1935
Timber Bridge Structures written by J.F. Seiler and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1935 with Wooden bridges categories.
Timber Bridges
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Author : Michael A. Ritter
language : en
Publisher:
Release Date : 1992
Timber Bridges written by Michael A. Ritter and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Wooden bridges categories.
This report presents a comprehensive analysis of the design, construction, inspection, and maintenance of timber bridges.
Condition Assessment Of Timber Bridges
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Author :
language : en
Publisher:
Release Date : 2005
Condition Assessment Of Timber Bridges written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Forest products categories.
Standard Plans For Timber Bridge Superstructures
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Author : James P. Wacker
language : en
Publisher:
Release Date : 2001
Standard Plans For Timber Bridge Superstructures written by James P. Wacker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Bridges categories.
These standardized bridge plans are for superstructures consisting of treated timber. Seven superstructure types are included: five longitudinal and two transverse deck systems. Both HS20 and HS25 loadings are included, along with L/360 and L/500 deflection criteria.
Typical Timber Bridge Design And Details
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Author : American Institute of Timber Construction
language : en
Publisher:
Release Date : 197?
Typical Timber Bridge Design And Details written by American Institute of Timber Construction and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 197? with Wooden bridges categories.
Toward Structural Mechanics Through Wooden Bridges In France 1716 1841
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Author : Chiara Tardini
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-09-13
Toward Structural Mechanics Through Wooden Bridges In France 1716 1841 written by Chiara Tardini and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-09-13 with Science categories.
Early applications of Navier’s beam theory to the rational design of structures are documented in the Annales of the French Ecole des Ponts et Chaussées and refer to the design of three wooden bridges built in France in the 1840's. Revisiting these examples, the book provides documentation on the progressive establishment of the new design approach, based on the theory of structural mechanics rather than empirical knowledge. The bridges concerned were built according to the structural scheme patented by Ithiel Town in the USA, witnessing the diffusion in Europe of the American advancements in bridge design, circulated by the travel reports of French engineers from the Ecole. Through the exam of French treatises discussing the progress of theoretical formulations in parallel with experimental findings in the 18th and 19th centuries, the book retraces as well the long path which led to the formulation of Navier’s theory. The relevant scientific debate dealt mainly with the specific case of wood bridges; the text outlines a brief history of bridges built in the Alpine area at the time, based on unpublished iconographic materials from various European archives.
Timber Bridge Design
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Author : Wheeler Consolidated
language : en
Publisher:
Release Date : 1990
Timber Bridge Design written by Wheeler Consolidated and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Wooden bridges categories.