Download or read book Structural Behaviour of Concrete Railway Sleepers written by Rikard Gustavson and published by . This book was released on 2002 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
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.
Download or read book Modern Railway Track written by Coenraad Esveld and published by . This book was released on 2001 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Behaviour of Precast Prestressed Concrete Railway Sleepers Affected by AAR written by Ahmad Shayan and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Precast prestressed concrete railway sleepers manufactured from somewhat deformed granitic rock and cement of moderate alkali content have shown signs of distress in the form of parallel and map cracking. The dominant form of cracking in the section between the rails is longitudinal and parallel. The cracks extend to the shoulders, but these may also show random (map) cracking depending on the stage of the deterioration. Petrographic examination, scanning electron microscopy and energy-dispersive X-ray analysis indicated that the primary cause of the deterioration was alkali-aggregate reaction (AAR). Although another reaction product (ettringite) was present in the cracks, this was considered to have formed as a consequence of cracking (due to AAR) rather than being the cause of it. Measurement of expansion and water absorption on large prisms (~100 x 100 x 300 mm) cut from the sleepers, have shown that the upper half of the sleepers that were subject to service traffic and loading expanded more than the lower half and also had a higher moisture absorption, indicating more extensive microcracking. This was the case for both the visually cracked and uncracked sleepers from the track. For the unloaded sleepers from a storage area there was no difference between the lower and upper halves. These observations indicate that the traffic may have affected the extent of the deterioration, once expansion and microcracking had been initiated by AAR. Treatment of a large number of sleepers with 100% isobutyltriethoxy-silane has shown that the silane is able to reduce the rate of deterioration, as evident from monitoring the progress of cracking, but cannot prevent it. Evaluation of concrete mix compositions for the manufacture of sleepers for a new railway track has shown that incorporation of 10% of a low-alkali silica fume in the mixes is effective in suppressing the expansions that may be caused by AAR, and at the same time inhibits the delayed formation of ettringite.
Download or read book CIGOS 2019 Innovation for Sustainable Infrastructure written by Cuong Ha-Minh and published by Springer Nature. This book was released on 2019-10-10 with total page 1264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents selected articles from the 5th International Conference on Geotechnics, Civil Engineering Works and Structures, held in Ha Noi, focusing on the theme “Innovation for Sustainable Infrastructure”, aiming to not only raise awareness of the vital importance of sustainability in infrastructure development but to also highlight the essential roles of innovation and technology in planning and building sustainable infrastructure. It provides an international platform for researchers, practitioners, policymakers and entrepreneurs to present their recent advances and to exchange knowledge and experience on various topics related to the theme of “Innovation for Sustainable Infrastructure”.
Download or read book Sustainable Construction and Building Materials written by Bibhuti Bhusan Das and published by Springer. This book was released on 2018-12-30 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents select proceedings of the International Conference on Sustainable Construction and Building Materials (ICSCBM 2018), and examines a range of durable, energy-efficient, and next-generation construction and building materials produced from industrial wastes and byproducts. The topics covered include alternative, eco-friendly construction and building materials, next-generation concretes, energy efficiency in construction, and sustainability in construction project management. The book also discusses various properties and performance attributes of modern-age concretes including their durability, workability, and carbon footprint. As such, it offers a valuable reference for beginners, researchers, and professionals interested in sustainable construction and allied fields.
Download or read book Analysis of the Static and Dynamic Characteristics of Composite Rubber and Concrete Sleepers on Ballasted Track written by Zeng Zhiping and published by Scientific Research Publishing, Inc. USA. This book was released on 2024-09-09 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: The vibrations of railway track occur because of extreme impact load conditions due to the train operations with either wheel or rail irregularity. The vibrations result in track deterioration and severe environmental influences. Therefore, an urgent need exists to manufacture a sleeper/tie to mitigate these effects. This study used a fullscale model with different kinds of sleepers to measure the vibration mitigation attributes and dynamic characteristics of recently recycled rubber composite sleepers (RCSs) when applied to ballasted railway tracks and compared them with well-established concrete sleepers (CSs). A high-capacity drop hammer weight impact test was used to achieve this purpose, and the vibration effects on the track structural elements were analyzed. Two cases and a series of interaction force height (IFHs) impacts for both sleepers were applied.
Download or read book Best Practices on Advanced Condition Monitoring of Rail Infrastructure Systems written by Stefano Bruni and published by Frontiers Media SA. This book was released on 2022-03-14 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Research Topic eBook comprises Volume I and Volume II of Best Practices on Advanced Condition Monitoring of Rail Infrastructure Systems.
Download or read book Safety Reliability and Risk Analysis written by R.D.J.M. Steenbergen and published by CRC Press. This book was released on 2013-09-18 with total page 3422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methods of risk and reliability analysis are becoming increasingly important as decision support tools in various fields of engineering. Safety, Reliability and Risk Analysis: Beyond the Horizon covers a wide range of topics for which risk analysis forms an indispensable field of knowledge to ensure sufficient safety.
Download or read book Proceedings of The 17th East Asian Pacific Conference on Structural Engineering and Construction 2022 written by Guoqing Geng and published by Springer Nature. This book was released on 2023-03-13 with total page 1545 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents articles from The 17th East Asian-Pacific Conference on Structural Engineering and Construction, 2022, organized by National University of Singapore. These peer-reviewed articles, authored by professional engineers, academics and researchers, highlight the recent research and developments in structural engineering and construction, embracing the theme- “Towards a Resilient and Sustainable City”. The papers presented in this proceeding provide in-depth discussions with key insights into the future research, development and engineering translation in structural engineering and construction.
Download or read book Prestressed Concrete Design to Eurocodes written by Prab Bhatt and published by CRC Press. This book was released on 2011-06-23 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ordinary concrete is strong in compression but weak in tension. Even reinforced concrete, where steel bars are used to take up the tension that the concrete cannot resist, is prone to cracking and corrosion under low loads. Prestressed concrete is highly resistant to stress, and is used as a building material for bridges, tanks, shell roofs, floors
Download or read book Proceedings of the Sustainable Concrete Materials and Structures in Construction 2020 written by Sharifah Salwa Mohd Zuki and published by Springer Nature. This book was released on with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers a selection of peer-reviewed papers presented at the Sustainable Concrete Materials and Structures in Construction 2020, held at Universiti Tun Hussein Onn Malaysia, Malaysia, on 24th August 2020. The contributions, prepared by international scientists and engineers, cover the latest advances in and innovative applications with the theme Towards Sustainable Green Concrete The articles in this book cater to academics, graduate students, researchers, as well as industrial practitioners working in the areas of concrete materials and building construction.
Download or read book Guidelines for earthquake resistant non engineered construction written by Arya, Anand S and published by UNESCO. This book was released on 2014-08-25 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Developments in Railway Track and Transportation Engineering written by João Pombo and published by Springer. This book was released on 2017-07-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume brings together scientific experts in different areas that contribute to the Railway Track & Transportation Engineering challenges, evaluate the State-of-the-Art, identify the shortcomings and opportunities for research and promote the interaction with the industry. In particular, scientific topics that are addressed in this volume include railway ballasted track degradation/settlement problems and stabilization/reinforcement technologies, switches and crossings and related derailments causes, train-induced vibrations and mitigation measures, operations, management and performance of ground transportation, and traffic congestion and safety procedures. This volume is part of the proceedings of the 1st GeoMEast International Congress and Exhibition on Sustainable Civil Infrastructures, Egypt 2017.
Download or read book Concrete Solutions 2014 written by Michael Grantham and published by CRC Press. This book was released on 2014-08-18 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Concrete Solutions series of International Conferences on Concrete Repair began in 2003 with a conference held in St. Malo, France in association with INSA Rennes. Subsequent conferences have seen us partnering with the University of Padua in 2009 and with TU Dresden in 2011. This conference is being held for the first time in the UK, in association with Queen’s University Belfast and brings together delegates from 36 countries to discuss the latest advances and technologies in concrete repair. Earlier conferences were dominated by electrochemical repair, but there has been an interesting shift to more unusual methods, such as bacterial repair of concrete plus an increased focus on service life design aspects and modelling, with debate and discussion on the best techniques and the validity of existing methods. Repair of heritage structures is also growing in importance and a number of the papers have focused on the importance of getting this right, so that we may preserve our rich cultural heritage of historic structures. This book is an essential reference work for those working in the concrete repair field, from Engineers to Architects and from Students to Clients.
Download or read book EASEC16 written by Chien Ming Wang and published by Springer Nature. This book was released on 2020-12-22 with total page 2093 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents articles from The 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019, held in Brisbane, Australia. It provides a forum for professional engineers, academics, researchers and contractors to present recent research and developments in structural engineering and construction.
