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Precast Tunnel Segments In Fibre Reinforced Concrete
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Author :fib Fédération Internationale du Béton Publisher :FIB - Féd. Int. du Béton ISBN 13 :2883941238 Total Pages :178 pages Book Rating :4.8/5 (839 download)
Book Synopsis Precast tunnel segments in fibre-reinforced concrete by : fib Fédération Internationale du Béton
Download or read book Precast tunnel segments in fibre-reinforced concrete written by fib Fédération Internationale du Béton and published by FIB - Féd. Int. du Béton. This book was released on 2017-08-01 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the publication of this bulletin, fib Commission 1 is initiating a new series of documents related to the use of structural concrete in underground construction, where structural concrete plays a major and increasingly important role. The usage of underground space is more than ever a key issue of urban planning and fib decided to start addressing the issues related to the design and construction of concrete structures in this particular environment. In this context one the most significant applications of structural concrete is tunnel lining, for which the properties of reinforced concrete are particularly well suited through compressive strength, water tightness, ductility, and durability. Reinforced concrete tunnels linings have mostly been traditionally cast in situ, but the development of Tunnel Boring Machines has lead to the invention of precast concrete segmental lining technology, which is nowadays one of the most promising applications of Fibre Reinforced Concrete (FRC). Thanks to the courage and dedication of innovative designers and contractors, a number of large tunnels have already been built around the World with FRC precast linings, and this report presents the experience acquired with these projects, and also provides guidance about the way to apply 2010 fib Model Code recommendations on FRC to these structures. The main drivers of this evolution from RC to FRC are a better ductility, more durability, and easier fabrication and construction process. As Commission 1 chair, I am very grateful to Alberto Meda and to all members of this task group for opening the way to this new field of underground structures within our commission, and to have efficiently produced a document that will be useful to our members and to the construction community around the World.
Book Synopsis Fibre Reinforced Concrete: Improvements and Innovations II by : Pedro Serna
Download or read book Fibre Reinforced Concrete: Improvements and Innovations II written by Pedro Serna and published by Springer Nature. This book was released on 2021-09-04 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume highlights the latest advances, innovations, and applications in the field of fibre-reinforced concrete (FRC), as presented by scientists and engineers at the RILEM-fib X International Symposium on Fibre Reinforced Concrete (BEFIB), held in Valencia, Spain, on September 20-22, 2021. It discusses a diverse range of topics concerning FRC: technological aspects, nanotechnologies related with FRC, mechanical properties, long-term properties, analytical and numerical models, structural design, codes and standards, quality control, case studies, Textile-Reinforced Concrete, Geopolymers and UHPFRC. After the symposium postponement in 2020, this new volume concludes the publication of the research works and knowledge of FRC in the frame of BEFIB from 2020 to 2021 with the successful celebration of the hybrid symposium BEFIB 2021. The contributions present traditional and new ideas that will open novel research directions and foster multidisciplinary collaboration between different specialists.
Author :fib - federation internationale du beton Publisher :John Wiley & Sons ISBN 13 :3433030618 Total Pages :434 pages Book Rating :4.4/5 (33 download)
Book Synopsis fib Model Code for Concrete Structures 2010 by : fib - federation internationale du beton
Download or read book fib Model Code for Concrete Structures 2010 written by fib - federation internationale du beton and published by John Wiley & Sons. This book was released on 2013-12-04 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Federation for Structural Concrete (fib) is a pre-normative organization. 'Pre-normative' implies pioneering work in codification. This work has now been realized with the fib Model Code 2010. The objectives of the fib Model Code 2010 are to serve as a basis for future codes for concrete structures, and present new developments with regard to concrete structures, structural materials and new ideas in order to achieve optimum behaviour. The fib Model Code 2010 is now the most comprehensive code on concrete structures, including their complete life cycle: conceptual design, dimensioning, construction, conservation and dismantlement. It is expected to become an important document for both national and international code committees, practitioners and researchers. The fib Model Code 2010 was produced during the last ten years through an exceptional effort by Joost Walraven (Convener; Delft University of Technology, The Netherlands), Agnieszka Bigaj-van Vliet (Technical Secretary; TNO Built Environment and Geosciences, The Netherlands) as well as experts out of 44 countries from five continents.
Book Synopsis Fibre-reinforced concrete:From design to structural applications by : FIB - Féd. Int. du Béton
Download or read book Fibre-reinforced concrete:From design to structural applications written by FIB - Féd. Int. du Béton and published by FIB - Féd. Int. du Béton. This book was released on 2016 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: The FRC-2014 Workshop Fibre Reinforced Concrete: from Design to Structural Applications was the first ACI-fib joint technical event. The Workshop, held at Polytechnique Montreal (Canada) on July 24th and 25th 2014, was attended by 116 participants from 25 countries and 4 continents. The first international FRC workshop was held in Bergamo (Italy) in 2004. At that time, the lack of specific building codes and standards was identified as the main inhibitor to the application of this technology in engineering practice. Ten years after Bergamo, many of the objectives identified at that time have been achieved. The use of fibre reinforced concrete (FRC) for designing structural members in bending and shear has recently been addressed in the fib Model Code 2010. Steel fibre reinforced concrete (SFRC) has also been used structurally in several building and bridge projects in Europe and North-America. SFRC has been widely used in segmental tunnel linings all over the world. Members of ACI544 and fib TG-4.1 have been involved in writing code based specifications for the design of FRC structural members. More than fifty papers were presented at the Workshop from which forty-four were selected for this joint ACI/fib publication. The papers are organised in the document under six themes: Design guidelines and specifications, Material properties for design, Behaviour and design of beams and columns, Behaviour and design of slabs and other structures, Behaviour and design of foundations and underground components, and finally, Applications in structure and underground construction projects.
Book Synopsis Analysis of Damage in Precast Concrete Tunnel Segments During the Construction Phase and the Influence of FRC. by : Raquel Suñé Pagès
Download or read book Analysis of Damage in Precast Concrete Tunnel Segments During the Construction Phase and the Influence of FRC. written by Raquel Suñé Pagès and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The increase of the demand for tunnels is palpable. In big cities with urban density ever increasing, more and more infrastructure is competing for the limited available space, so the underground constructions have become a suitable solution. Therefore, there is a high demand for optimizing the construction processes, as well as the materials and machinery. The development of the tunnel boring machines (TBMs) had represented a significant step forward in terms of efficiency. When constructing tunnels with TBMs, the tunnel lining is built during the excavation. The precast concrete pieces that create the lining are used as a support for the TBM hydraulic jacks to push forward the machine. This interaction between the TBM and the lining can highly influence the occurring damage in the segments. The tunnel lining is one of the most important parts of the tunnel as it ensures the protection of the cavern and the stability of the tunnel, hence the quality is of paramount importance. As mentioned before, the construction phase of the tunnel is one of the most strenuous loading case for the segments. In the presented paper, two possible causes of segment damage are analysed: the uneven support of the segments when subjected to the hydraulic jack's loading and the radial eccentricity of the hydraulic jacks. In both cases, the stress field developed is obtained through the so-called Strut-and-tie method. This method provides a simplified version of the occurring stress fields that is very useful in the calculation of D-regions where the common flexion theory is not applicable. In addition, the simplicity of the strut-and-tie models helps to provide a physical understanding of the stress fields. In Chapter 3 four cases of possible uneven supports of the segments are presented. Through the Strut-and-tie method, the stresses developed in the segment are analysed depending on the segment's geometrical characteristics and the load applied. In Chapter 4 the effect of the radial eccentricity of the hydraulic jacks is considered. The stress field is calculated also by means of the strut-and-tie method. In both cases, the corresponding segment damages due to the two loading situations are described. Once the failure situations in Chapters 3 and 4 are described, the advantages of using fibres as a reinforcement for the segments are presented. Prior studies have shown that fibres have a positive influence in the behaviour of the hardened concrete and that they are suitable for the tunnel segments. Fibre reinforced concrete in tunnel segments may offer additional advantages over those of conventional reinforcement. In Chapter 5, the advantages of FRC segments and in particular to the type of failures described in the previous chapters are shown.
Book Synopsis Handbook of Precast Segmental Tunnel Lining Systems by : Verya Nasri
Download or read book Handbook of Precast Segmental Tunnel Lining Systems written by Verya Nasri and published by CRC Press. This book was released on 2024-07-31 with total page 855 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive handbook covers all aspects of design, production, and construction of precast concrete tunnel segmental lining, with the best practices in the field included in one book for the first time. New and current design methods and quantitative analyses are considered in line with ACI and ASTM codes, as well as a full selection of global standards for the reliable design of the product and all components. Also incorporated are new applications of science and technology, such as new admixtures, and the latest manufacturing processes and precisions, such as tight dimensional controls and high repeatability cycles. With detailed guidance from world-leading practitioners, this is the definitive international technical and practical manual on these linings, forming a one-stop reference for tunnel engineers and an invaluable resource for advanced students in civil, mechanical, and mining engineering.
Book Synopsis Fibre Reinforced Concrete: Improvements and Innovations by : Pedro Serna
Download or read book Fibre Reinforced Concrete: Improvements and Innovations written by Pedro Serna and published by Springer Nature. This book was released on 2020-11-05 with total page 1180 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume highlights the latest advances, innovations, and applications in the field of fibre reinforced concrete (FRC) and discusses a diverse range of topics concerning FRC: rheology and early-age properties, mechanical properties, codes and standards, long-term properties, durability, analytical and numerical models, quality control, structural and Industrial applications, smart FRC’s, nanotechnologies related to FRC, textile reinforced concrete, structural design and UHPFRC. The contributions present improved traditional and new ideas that will open novel research directions and foster multidisciplinary collaboration between different specialists. Although the symposium was postponed, the book gathers peer-reviewed papers selected in 2020 for the RILEM-fib International Symposium on Fibre Reinforced Concrete (BEFIB).
Book Synopsis Test Method for Metallic Fibred Concrete. Measuring the Flexural Tensile Strength (Limit of Proportionality (Lop), Residual) by : British Standards Institute Staff
Download or read book Test Method for Metallic Fibred Concrete. Measuring the Flexural Tensile Strength (Limit of Proportionality (Lop), Residual) written by British Standards Institute Staff and published by . This book was released on 2005-07 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Precast concrete, Fibre-reinforced concrete, Metals, Reinforcing materials, Concretes, Bend testing, Tensile testing, Cement and concrete technology, Flexural strength, Tensile strength, Tensile stress
Book Synopsis Structural and Durability Performance of Precast Segmental Tunnel Linings by : Safeer Abbas
Download or read book Structural and Durability Performance of Precast Segmental Tunnel Linings written by Safeer Abbas and published by . This book was released on 2014 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of precast concrete tunnel linings (PCTLs) has been escalating due to its efficient and economical installation process compared to that of normal cast in-situ lining practice. Normally, PCTL segments are designed for 100 years of service life. However, tunnel structures often suffer premature degradation primarily due to reinforcement corrosion, which requires costly repair and maintenance. Hence, addressing and solving such durability-sustainability dilemma of tunnels is a must. The main aim of this dissertation is to evaluate the structural and durability performance of full-scale conventional reinforced concrete (RC) PCTL segments in comparison to steel fibre-reinforced concrete (SFRC). Moreover, the potential for implementing ultra-high performance fibre-reinforced concrete (UHPFRC) in tunnel lining applications was also investigated. Tunnel lining segments behaviour was evaluated under simulated field-like conditions including physical and chemical loads encountered during the service life of PCTL segments. Results showed that the peak load capacity of RC PCTL segments was higher than that of the corresponding SFRC segments; however, SFRC achieved higher cracking resistance and more progressive post-peak behaviour. The tested segments indicating the adequate ability to sustain TBM installation loads. The durability assessment showed that the chloride ion diffusion coefficient was a function of chloride concentration and exposure period. Results indicate that conventional RC PCTL segments are more vulnerable to corrosion damage compared to that of SFRC segments. Moreover, the load carrying capacity of UHPFRC tunnel lining segments linearly increased with higher fibre dosage. UHPFRC exhibited higher cracking resistance, leading to better durability properties compared to that of conventional RC and SFRC owing to its very low porosity and denser micro-structure. Furthermore, no deterioration of UHPFRC mechanical properties was observed after various chloride ions exposures. Based on structural and durability results, it can be concluded that the UHPFRC is a promising alternative for conventional RC and SFRC tunneling segments. The very high strength and ultra-durable nature of UHPFRC can allow reducing the cross-sectional dimensions of PCTL segments, leading to reduced material cost and more sustainable construction. In addition, UHPFRC PCTL segments can eliminate the costly manufacturing of rebar cages, which mitigates the corrosion problem, leading to enhanced service life of lining systems at low production cost.
Author :American Water Works Association Publisher :American Water Works Association ISBN 13 :1583215492 Total Pages :286 pages Book Rating :4.5/5 (832 download)
Book Synopsis Concrete Pressure Pipe, 3rd Ed. by : American Water Works Association
Download or read book Concrete Pressure Pipe, 3rd Ed. written by American Water Works Association and published by American Water Works Association. This book was released on 2008 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive manual of water supply practices explains the design, selection, specification, installation, transportation, and pressure testing of concrete pressure pipes in potable water service.
Book Synopsis Mechanised Shield Tunnelling by : Bernhard Maidl
Download or read book Mechanised Shield Tunnelling written by Bernhard Maidl and published by John Wiley & Sons. This book was released on 2013-05-20 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanised shield tunnelling has developed considerably since the publication of the first edition of this book. Challenging tunnel projects under difficult conditions demand innovative solutions, which has led to constant further development and innovation in process technology, constructions operations and the machines and materials used. The book collects the latest state of technology in mechanised shield tunnelling. It describes the basics of mechanised tunnelling technology and the various types of machines and gives calculation methods and constructural advice. Further chapters cover excavation tools, muck handling, tunnel support, surveying and steering as well as workplace safety. There is also detailled information about contractual aspects and process controlling.
Book Synopsis Fibrous Concrete by : Concrete Society
Download or read book Fibrous Concrete written by Concrete Society and published by . This book was released on 1980 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tailor Made Concrete Structures by : Joost C. Walraven
Download or read book Tailor Made Concrete Structures written by Joost C. Walraven and published by CRC Press. This book was released on 2008-05-01 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years knowledge of concrete and concrete structures has increased, as has its applications. New types of concrete challenged scientists and engineers, and ecological constraints encouraged the implementation of life cycle design of concrete structures, moving the focus more and more to maintenance and uprating of structures. And since bui
Book Synopsis Fibre Reinforced Cementitious Composites, Second Edition by : Arnon Bentur
Download or read book Fibre Reinforced Cementitious Composites, Second Edition written by Arnon Bentur and published by CRC Press. This book was released on 2006-11-22 with total page 625 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced cementitious composites can be designed to have outstanding combinations of strength (five to ten times that of conventional concrete) and energy absorption capacity (up to 1000 times that of plain concrete). This second edition brings together in one volume the latest research developments in this rapidly expanding area. The book is split into two parts. The first part is concerned with the mechanics of fibre reinforced brittle matrices and the implications for cementitious systems. In the second part the authors describe the various types of fibre-cement composites, discussing production processes, mechanical and physical properties, durability and applications. Two new chapters have been added, covering fibre specification and structural applications. Fibre Reinforced Cementitious Composites will be of great interest to practitioners involved in modern concrete technology and will also be of use to academics, researchers and graduate students.
Book Synopsis Precast Concrete Structures by : Alfred Steinle
Download or read book Precast Concrete Structures written by Alfred Steinle and published by John Wiley & Sons. This book was released on 2019-05-06 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Building with precast concrete elements is one of the most innovative forms of construction. This book serves as an introduction to this topic, including examples, and thus supplies all the information necessary for conceptual and detailed design.
Book Synopsis Designing and Building with UHPFRC by : Jacques Resplendino
Download or read book Designing and Building with UHPFRC written by Jacques Resplendino and published by John Wiley & Sons. This book was released on 2013-01-29 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the proceedings of the international workshop “Designing and Building with Ultra-High Performance Fibre-Reinforced Concrete (UHPFRC): State of the Art and Development”, organized by AFGC, the French Association for Civil Engineering and French branch of fib, in Marseille (France), November 17-18, 2009. This workshop was focused on the experience of a lot of recent UHPFRC realizations. Through more than 50 papers, this book details the experience of many countries in UHPFRC construction and design, including projects from Japan, Germany, Australia, Austria, USA, Denmark, the Netherlands, Canada... and France. The projects are categorized as novel architectural solutions, new frontiers for bridges, new equipments and structural components, and extending the service life of structures. The last part presents major research results, durability and sustainability aspects, and the updated AFGC Recommendations on UHPFRC.
Book Synopsis Handbook of Tunnel Engineering I by : Bernhard Maidl
Download or read book Handbook of Tunnel Engineering I written by Bernhard Maidl and published by John Wiley & Sons. This book was released on 2013-12-04 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tunnel engineering is one of the oldest, most interesting but also challenging engineering disciplines and demands not only theoretical knowledge but also practical experience in geology, geomechanics, structural design, concrete construction, machine technology, construction process technology and construction management. The two-volume "Handbuch des Tunnel- und Stollenbaus" has been the standard reference for German-speaking tunnellers in theory and practice for 30 years. The new English edition is based on a revised and adapted version of the third German edition and reflects the latest state of knowledge. The book is published in two volumes, with the first being devoted to more practical themes of construction and construction process in drill and blast and mechanised tunnelling. Microtunnelling and ventilation are also dealt with. All chapters include practical examples.
