Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Precast Concrete Railway Track Systems
Download Precast Concrete Railway Track Systems full books in PDF, epub, and Kindle. Read online Precast Concrete Railway Track Systems ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author :fib Fédération internationale du béton Publisher :fib Fédération internationale du béton ISBN 13 :9782883940772 Total Pages :44 pages Book Rating :4.9/5 (47 download)
Book Synopsis Precast Concrete Railway Track Systems by : fib Fédération internationale du béton
Download or read book Precast Concrete Railway Track Systems written by fib Fédération internationale du béton and published by fib Fédération internationale du béton. This book was released on 2006-01-01 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1986, the FIP Commission on Prefabrication issued the state-of-art report "Concrete Railway Sleepers", which included design considerations, manufacturing methods, rail fastening systems and field performance. During the two decades since that report, precast concrete has gained importance in the field of railway track systems for plain track, switches and crossings, tunnels and other applications. Developments in production methods for concrete sleepers in switch and crossing layouts to cope with the complex geometry and the industry's confidence in their performance have contributed to the huge increase in the use of this type of sleeper. The use of slab track for high-speed track has also grown, particularly where either new track is built or where existing track is renewed and long periods of track possession are possible. There has also been progress in the development of plant and equipment for the installation, renewal and maintenance of concrete sleepered track. With machines now able to replace existing track at a rate of 5000 sleepers (over 3 km track) per day, choosing concrete sleepers can reduce the time on site, meaning tracks can be reopened quickly whilst reducing labour requirements and costs. Today, precast concrete is considered to be the best performing and preferred material for railway sleepers, due to the following factors: long-term durability; improved geometric retention of track and greater weight vital for high-speed and heavy freight lines; improved elasticity of track; improved ride quality; low first cost; minimum life cycle cost; low cost of maintenance; environmental friendliness - no chemical treatment required and can be recycled. As all aspects of precast concrete railway track systems, from design through manufacture to installation and maintenance, have progressed since the publication of the FIP report, an update was considered timely, in order to provide a synthesis of currently available information. This new edition covers quality, design, production, durability, maintenance and environmental considerations, and includes survey on the use of precast concrete track systems in over 30 countries.
Book Synopsis Ballastless Tracks by : Stephan Freudenstein
Download or read book Ballastless Tracks written by Stephan Freudenstein and published by John Wiley & Sons. This book was released on 2018-04-30 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author :FIB – International Federation for Structural Concrete Publisher :FIB - International Federation for Structural Concrete ISBN 13 :0727703617 Total Pages :30 pages Book Rating :4.7/5 (277 download)
Book Synopsis Concrete Railway sleepers by : FIB – International Federation for Structural Concrete
Download or read book Concrete Railway sleepers written by FIB – International Federation for Structural Concrete and published by FIB - International Federation for Structural Concrete. This book was released on 1987-01-01 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of concrete sleepers in railways started in the 1940s. They are currently used in many countries thoughout the world at a rate of over 12 million per year. This report discusses the various types of sleeper which have been developed - monoblock, two-block, reinforced and prestressed concrete. Separate sections deal with design, rail fastening systems, manufacture, quality control and testing, installation and performance, and research and development.
Book Synopsis Technical and Economic Feasibility Study of At-grade Concrete Slab Track for Urban Rail Transit Systems by : Amir Naoum Hanna
Download or read book Technical and Economic Feasibility Study of At-grade Concrete Slab Track for Urban Rail Transit Systems written by Amir Naoum Hanna and published by . This book was released on 1981 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Railway Applications. Track. Concrete Sleepers and Bearers. Prestressed Monoblock Sleepers by : British Standards Institute Staff
Download or read book Railway Applications. Track. Concrete Sleepers and Bearers. Prestressed Monoblock Sleepers written by British Standards Institute Staff and published by . This book was released on 2009-06-30 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Railway engineering, Railway fixed equipment, Railway rails, Railway track, Sleepers, Bearers, Concretes, Prestressed concrete Railway applications
Book Synopsis Track Design Handbook for Light Rail Transit by :
Download or read book Track Design Handbook for Light Rail Transit written by and published by Transportation Research Board. This book was released on 2012 with total page 695 pages. Available in PDF, EPUB and Kindle. Book excerpt: TCRP report 155 provides guidelines and descriptions for the design of various common types of light rail transit (LRT) track. The track structure types include ballasted track, direct fixation ("ballastless") track, and embedded track. The report considers the characteristics and interfaces of vehicle wheels and rail, tracks and wheel gauges, rail sections, alignments, speeds, and track moduli. The report includes chapters on vehicles, alignment, track structures, track components, special track work, aerial structures/bridges, corrosion control, noise and vibration, signals, traction power, and the integration of LRT track into urban streets.
Book Synopsis Concrete Railway Sleepers by : Bruno Neumann
Download or read book Concrete Railway Sleepers written by Bruno Neumann and published by . This book was released on 1963 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Railway Track and Structures written by and published by . This book was released on 1998 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Railway Applications by : British Standards Institute Staff
Download or read book Railway Applications written by British Standards Institute Staff and published by . This book was released on 2002 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Railway engineering, Railway fixed equipment, Railway rails, Railway track, Railways, Sleepers, Bearers, Concretes, Prestressed concrete, Railway applications
Book Synopsis Railway track material, Part 14: Prestressed concrete sleepers by :
Download or read book Railway track material, Part 14: Prestressed concrete sleepers written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :fib Fédération internationale du béton Publisher :fib Fédération internationale du béton ISBN 13 :2883940916 Total Pages :308 pages Book Rating :4.8/5 (839 download)
Book Synopsis Structural Concrete, Volume 1 by : fib Fédération internationale du béton
Download or read book Structural Concrete, Volume 1 written by fib Fédération internationale du béton and published by fib Fédération internationale du béton. This book was released on 2009-01-01 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :fib Fédération internationale du béton Publisher :fib Fédération internationale du béton ISBN 13 :2883940967 Total Pages :312 pages Book Rating :4.8/5 (839 download)
Book Synopsis Model Code 2010 - First complete draft - Volume 2 by : fib Fédération internationale du béton
Download or read book Model Code 2010 - First complete draft - Volume 2 written by fib Fédération internationale du béton and published by fib Fédération internationale du béton. This book was released on 2010-01-01 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Model Code for Concrete Structures is intended to serve as a basis for future codes. It takes into account new developments with respect to concrete structures, the structural material concrete and new ideas for the requirements to be formulated for structures in order to achieve optimum behaviour according to new insights and ideas. It is also intended as a source of information for updating existing codes or developing new codes for concrete structures. At the same time, the Model Code is intended as an operational document for normal design situations and structures.
Book Synopsis View Full-Size Image Corrugated-steel-web bridges by : FIB - Féd. Int. du Béton
Download or read book View Full-Size Image Corrugated-steel-web bridges written by FIB - Féd. Int. du Béton and published by FIB - Féd. Int. du Béton. This book was released on 2015 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: To date, very little has been published on the topic of corrugated-steel-web bridges. fib Bulletin 77 offers the global engineering community a first complete overview of this fascinating technology. The shear capacity of corrugated-steel web began to be studied in Japan in 1965 and resulted in the use of corrugated steel in steel-girder webs as a replacement for web stiffeners. After Japan laid the groundwork for the technology, France built the first composite bridge with corrugated-steel webs and upper and lower concrete slabs in the 1980s. Composite bridges had already been popular in France but engineers found that concrete slab creep meant that prestressing force spread into the steel plates, causing high losses. Corrugated-steel web, which reduces axial stiffness, was welcomed as a solution to this problem and several bridges were designed and built with this technology. Building on France’s composite technology, Japan began developing corrugated-web precast box-girder bridges in the 1990s and today has over 140 corrugated-web bridges, by far the largest number for any country in the world. Japanese engineers have come a long way in solving issues such as fatigue and ultimate load behaviour and have made good use of corrugated-steel web’s advantages for bridge building, which include reduced self weight (of approximately 15% compared with the weight of an ordinary concrete box-girder bridge), economy and improved construction processes. fib Bulletin 77: Corrugated-steel-web bridges covers numerous examples of bridges in Japan and France as well as an in-depth case study and analysis of a large corrugated-steel-web bridge in Germany. This publication offers designers, proprietors, contractors and architects alike relevant technical and theoretical information on construction processes along with ideas for future development.
Author :fib Fédération internationale du béton Publisher :fib Fédération internationale du béton ISBN 13 :2883941165 Total Pages :205 pages Book Rating :4.8/5 (839 download)
Book Synopsis Benchmarking of deemed-to-satisfy provisions in standards by : fib Fédération internationale du béton
Download or read book Benchmarking of deemed-to-satisfy provisions in standards written by fib Fédération internationale du béton and published by fib Fédération internationale du béton. This book was released on 2015-05-01 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: Standards for specifying and ensuring the durability of new concrete structures are commonly of the prescriptive kind. fib Bulletin 76: Benchmarking of deemed-to-satisfy provisions in standards - Durability of reinforced concrete structures exposed to chlorides presents the benchmarking of a number of rules for chloride-induced corrosion as given in national codes such as European, US and Australian standards. This new benchmark determines the reliability ranges in the chloride-induced depassivation of rebar if the deemed-to-satisfy rules of different countries are taken into consideration. It does not only involve (probabilistic) calculations using input mainly based on short-term and rapid laboratory-test data but also involves input based on an independent assessment of existing structures. The reliability analyses are carried out using the probabilistic design approach for chloride-induced corrosion presented in fib Bulletin 34: Model Code for Service Life Design (2006), fib Model Code for Concrete Structures 2010 and ISO 16204:2012. The work compares the calculated reliability ranges thus determined with the target reliabilities proposed by current specifications and, based on the comparison, offers a proposal for the improvement of deemed-to-satisfy rules and specifications. fib Bulletin 76 presents and discusses in detail the input data for the examined model parameters and offers an extensive annexe documenting the values of the individual parameters used in the analyses. It thus provides a reliable database for the performance-based probabilistic service-life design of concrete structures exposed to chlorides, be they in the form of salt fog, sea water or de-icing salts.
Author :FIB – International Federation for Structural Concrete Publisher :FIB - Féd. Int. du Béton ISBN 13 : Total Pages :73 pages Book Rating :4./5 ( download)
Book Synopsis Proceedings fib Symposium in New Delhi India by : FIB – International Federation for Structural Concrete
Download or read book Proceedings fib Symposium in New Delhi India written by FIB – International Federation for Structural Concrete and published by FIB - Féd. Int. du Béton. This book was released on 2004-11-01 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :FIB – International Federation for Structural Concrete Publisher :FIB - International Federation for Structural Concrete ISBN 13 :2883941459 Total Pages :118 pages Book Rating :4.8/5 (839 download)
Book Synopsis External Tendons for Bridges by : FIB – International Federation for Structural Concrete
Download or read book External Tendons for Bridges written by FIB – International Federation for Structural Concrete and published by FIB - International Federation for Structural Concrete. This book was released on 2020-12-01 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: The concept of post-tensioning has been recognized for over a century. Interestingly, early developments started with external tendons, but failed to be recognized as a major construction technique for two main reasons: - Low tensile performance of early steels in combination with a poor knowledge of concrete creep and shrinkage properties, - Lack of a durable corrosion protection. With the technological progress, external tendons became increasingly popular in the 1980’s, as a post-tensioning method enabling inspection and, if necessary, replacement of tendons without demolition of structural members. Towards the end of the last century, more than 50 bridges have been built with external tendons, first in France and soon gaining traction in other countries. FIP published a state-of the-art report in May 1996 to provide a review of the application of external tendons, describing specific material problems and methods for dealing with them. 25 years have passed and, while the engineering principles covered by the FIP report remain unchanged, the context has evolved: - External tendons and construction methods have kept evolving with better materials, ever longer spans, and tighter schedules. - Normalization frame in Europe changed, Severe durability issues have occurred in some countries from which the industry can extract good knowledge of the causes and how to avoid similar problems in the future. This new fib bulletin has been prepared with the aim to reflect the current state of the art and encompass the knowledge amassed in the last quarter of century with chapters covering from the design and approval of systems and materials to installation, quality control and monitoring. The last chapter is a compilation of structures worldwide covering all sorts of materials, typologies and construction methods, which might be a source of inspiration for owners and designers alike.
Author :FIB – International Federation for Structural Concrete Publisher :FIB - International Federation for Structural Concrete ISBN 13 :2883941378 Total Pages :98 pages Book Rating :4.8/5 (839 download)
Book Synopsis Birth Certificate and Through-Life Management Documentation by : FIB – International Federation for Structural Concrete
Download or read book Birth Certificate and Through-Life Management Documentation written by FIB – International Federation for Structural Concrete and published by FIB - International Federation for Structural Concrete. This book was released on 2020-06-01 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: While it is generally accepted by owners and users that vehicles such as airplanes or cars must be subjected to a pre-defined maintenance plan during their lifetime, this is less obvious in public opinion for engineering structures and buildings. This may be related to the general feeling that “moving objects” should be more sensitive to aging and deterioration than “structures anchored in ground”! This may also relate to the fact that detailed maintenance manuals, which are considered obligatory by insurance companies, are generally for aircraft, boats and cars, but not systematically for civil engineering structures, except for iconic or major projects. The performance-based approach to the durability design and assessment of concrete structures is also becoming increasingly popular in the construction sector. In recent years, numerous studies have been carried out worldwide in order to better assess the expected properties related to the durability of concrete. This has led to the standardization of test protocols, but also to a better understanding of the main parameters impacting the overall durability of concrete. Documentation related to durability indicators will then become increasingly necessary for the accurate implementation of a performance-based approach that enables the promotion of sustainable materials. Durability models have a strong need for relevant in-field data feedback in order to define accurate inputs for modelling both during the design process (gathered from previous projects) and during the follow-up process to allow for re-calibration of inputs and re-assessment of durability expectations by the models if judged necessary. A framework for data collection was therefore considered extremely importance by the fib Commission 8: Durability, and is the objective of this fib Technical report “Birth-certificate and Through-Life Management Documentation”. It is indeed very important to collect relevant data within a comprehensive and standardized format, as now proposed by this fib Bulletin. Thanks to its pre-defined format, compatible with the general fib framework, “Birth-certificate and Through-Life Management Documentation” will definitively be useful to owners for the maintenance plan and intervention strategies of their assets. This operational technical report will also be very useful for designers, as it should encourage the collection of relevant information in databases to be used for future projects where a realistic assessment of expected properties is considered through largely similar concrete mix designs under given exposure conditions. The Commission, which deals with durability aspects, hopes that this Bulletin will provide users a valuable tool and perspective on service life management issues.
