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Ductility Of Reinforced Concrete Flexural Members Constructed From High Performance Steel And Concrete
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Book Synopsis Ductility of Reinforced Concrete Flexural Members Constructed from High Performance Steel and Concrete by : Roderick Gerald Charles Goodfellow
Download or read book Ductility of Reinforced Concrete Flexural Members Constructed from High Performance Steel and Concrete written by Roderick Gerald Charles Goodfellow and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ductility of Reinforced Concrete Flexural Members Construct by : r.g.c
Download or read book Ductility of Reinforced Concrete Flexural Members Construct written by r.g.c and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flexural Ductility Improvement of Frp-Reinforced Concrete Members by : Tak-Bun Denvid Lau
Download or read book Flexural Ductility Improvement of Frp-Reinforced Concrete Members written by Tak-Bun Denvid Lau and published by . This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Flexural Ductility Improvement of FRP-reinforced Concrete Members" by Tak-bun, Denvid, Lau, 劉特斌, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled Flexural Ductility Improvement of FRP-reinforced Concrete Members Submitted by LAU Tak Bun Denvid for the degree of Master of Philosophy at The University of Hong Kong in August 2006 Fiber-reinforced polymer (FRP) has become a practical alternative construction material for replacing conventional steel bars as reinforcement in concrete structures. Although recently guidelines for the design and construction of concrete reinforced with FRP bars are available, they are not comprehensive enough and some lack the support of experimental results. In addition, the testing method for determining the tensile strength of FRP bars still has room for improvement. One major problem in tensile tests of FRP bars is failure at the anchor or grip region. Existing guidelines about anchor protection of FRP bars are not practicable for most of tensile test machines. Therefore, theoretical and experimental analyses were carried out in this research to find a more suitable protection method for the anchor. Tensile tests were conducted on a large number of glass fiber-reinforced polymer (GFRP) bars having a range of diameters from 12 to 25mm. It was found that epoxy resin and aluminum are suitable materials for filler and anchor tube respectively. Finally, a more practicable and economical anchor design for FRP bars was proposed. Because FRP is a brittle material that has elastic behavior until failure, it greatly reduces the ductility of concrete members reinforced with FRP bars, which are referred to as FRPRC in this research. In order to improve the flexural ductility of an FRPRC i imember, and at the same time retain the high strength feature of its FRP bars, conventional steel longitudinal reinforcement is proposed to be added to form a hybrid FRPRC beam. To investigate the ductility improvement of hybrid FRPRC members, a number of beam specimens consisting of conventional steel-reinforced concrete (SRC) beams, pure FRPRC beams and hybrid FRPRC beams were fabricated and tested under three point monotonic loading. From the test results, it was evident that the hybrid FRPRC members behaved more ductile than the pure FRPRC beams, and the higher the degree of over-reinforcement (in terms of GFRP bars or both steel and GFRP bars), the more ductile the FRPRC beams. It is therefore concluded that the addition of conventional steel reinforcement could improvement the flexural ductility of FRPRC members, and over-reinforcement is a preferred approach in the design of FRPRC members to prevent brittle failure by fracture of FRP bars. In addition, to guarantee in the design that pure FRPRC sections are over-reinforced, it was proposed in this research that the over reinforcement ratio should be at least 40% larger than the balanced reinforcement ratio. The minimum content of FRP flexural reinforcement for strength was also investigated. Experimental results showed that the minimum FRP flexural reinforcement recommended by the existing guideline could be reduced by about 25%. As over-reinforcement is recommended in the design of FRPRC members, their failure is governed by concrete crushing in the compression zone. From the test results, it was found that stirrups with 135 hooks gave a better confinement for the compression zone, so that the ductility of FRPRC members could further be improved. ii ii DOI: 10.5353/th_b
Author :FIB – International Federation for Structural Concrete Publisher :FIB - International Federation for Structural Concrete ISBN 13 :2883940398 Total Pages :337 pages Book Rating :4.8/5 (839 download)
Book Synopsis Ductility of reinforced concrete structures by : FIB – International Federation for Structural Concrete
Download or read book Ductility of reinforced concrete structures written by FIB – International Federation for Structural Concrete and published by FIB - International Federation for Structural Concrete. This book was released on 1998-05-01 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Strength and Ductility of Reinforced Concrete Members and Frames Constructed Using High Strength Concrete by : Bing Li
Download or read book Strength and Ductility of Reinforced Concrete Members and Frames Constructed Using High Strength Concrete written by Bing Li and published by . This book was released on 1994 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computer Study of Ductility and Strength in Reinforced Concrete Flexural Members by : Khaled G. Zabalawi
Download or read book Computer Study of Ductility and Strength in Reinforced Concrete Flexural Members written by Khaled G. Zabalawi and published by . This book was released on 1991 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Steel Fiber Reinforced Concrete by : Harvinder Singh
Download or read book Steel Fiber Reinforced Concrete written by Harvinder Singh and published by Springer. This book was released on 2016-10-26 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses design aspects of steel fiber-reinforced concrete (SFRC) members, including the behavior of the SFRC and its modeling. It also examines the effect of various parameters governing the response of SFRC members in detail. Unlike other publications available in the form of guidelines, which mainly describe design methods based on experimental results, it describes the basic concepts and principles of designing structural members using SFRC as a structural material, predominantly subjected to flexure and shear. Although applications to special structures, such as bridges, retaining walls, tanks and silos are not specifically covered, the fundamental design concepts remain the same and can easily be extended to these elements. It introduces the principles and related theories for predicting the role of steel fibers in reinforcing concrete members concisely and logically, and presents various material models to predict the response of SFRC members in detail. These are then gradually extended to develop an analytical flexural model for the analysis and design of SFRC members. The lack of such a discussion is a major hindrance to the adoption of SFRC as a structural material in routine design practice. This book helps users appraise the role of fiber as reinforcement in concrete members used alone and/or along with conventional rebars. Applications to singly and doubly reinforced beams and slabs are illustrated with examples, using both SFRC and conventional reinforced concrete as a structural material. The influence of the addition of steel fibers on various mechanical properties of the SFRC members is discussed in detail, which is invaluable in helping designers and engineers create optimum designs. Lastly, it describes the generally accepted methods for specifying the steel fibers at the site along with the SFRC mixing methods, storage and transport and explains in detail methods to validate the adopted design. This book is useful to practicing engineers, researchers, and students.
Book Synopsis Advances in Civil Engineering and Building Materials by : Shuenn-Yih Chang
Download or read book Advances in Civil Engineering and Building Materials written by Shuenn-Yih Chang and published by CRC Press. This book was released on 2012-10-31 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Civil Engineering and Building Materials presents the state-of-the-art development in: - Structural Engineering - Road & Bridge Engineering- Geotechnical Engineering- Architecture & Urban Planning- Transportation Engineering- Hydraulic Engineering - Engineering Management- Computational Mechanics- Construction Technology- Buildi
Book Synopsis Design of Steel-Concrete Composite Structures Using High-Strength Materials by : J.Y. Richard Liew
Download or read book Design of Steel-Concrete Composite Structures Using High-Strength Materials written by J.Y. Richard Liew and published by Woodhead Publishing. This book was released on 2021-08-04 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-strength materials offer alternatives to frequently used materials for high-rise construction. A material of higher strength means a smaller member size is required to resist the design load. However, high-strength concrete is brittle, and high-strength thin steel plates are prone to local buckling. A solution to overcome such problems is to adopt a steel-concrete composite design in which concrete provides lateral restraint to steel plates against local buckling, and steel plates provide confinement to high-strength concrete. Design of Steel-Concrete Composite Structures Using High Strength Materials provides guidance on the design of composite steel-concrete structures using combined high-strength concretes and steels. The book includes a database of over 2,500 test results on composite columns to evaluate design methods, and presents calculations to determine critical parameters affecting the strength and ductility of high-strength composite columns. Finally, the book proposes design methods for axial-moment interaction curves in composite columns. This allows a unified approach to the design of columns with normal- and high-strength steel concrete materials. This book offers civil engineers, structural engineers, and researchers studying the mechanical performance of composite structures in the use of high-strength materials to design and construct advanced tall buildings. Presents the design and construction of composite structures using high-strength concrete and high-strength steel, complementing and extending Eurocode 4 standards Addresses a gap in design codes in the USA, China, Europe and Japan to cover composite structures using high-strength concrete and steel in a comprehensive way Gives insight into the design of concrete-filled steel tubes and concrete-encased steel members Suggests a unified approach to designing columns with normal- and high-strength steel and concrete
Book Synopsis Ductility of RC Members Constructed from High Strength Concrete and Reinforcing Steel by : R. C. Goodfellow
Download or read book Ductility of RC Members Constructed from High Strength Concrete and Reinforcing Steel written by R. C. Goodfellow and published by . This book was released on 2000 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ductility Behavior of Concrete Flexural Members Reinforced with a Hybrid Combination of GFRP and Mild Steel by : Michael Glenn Eilers
Download or read book Ductility Behavior of Concrete Flexural Members Reinforced with a Hybrid Combination of GFRP and Mild Steel written by Michael Glenn Eilers and published by . This book was released on 2006 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: With proper reinforcement ratios, excessive deflections can be physically observed before a material failure in the mild steel or concrete can occur, thus providing an adequate warning system if service loads are exceeded, but remain under ultimate loads. The ductile properties of the mild steel are a main key in providing this warning system before catastrophic failure can occur.
Book Synopsis PRO 30: 4th International RILEM Workshop on High Performance Fiber Reinforced Cement Composites (HPFRCC 4) by : Antoine E. Naaman
Download or read book PRO 30: 4th International RILEM Workshop on High Performance Fiber Reinforced Cement Composites (HPFRCC 4) written by Antoine E. Naaman and published by RILEM Publications. This book was released on 2003 with total page 580 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 :2883941610 Total Pages :461 pages Book Rating :4.8/5 (839 download)
Book Synopsis Fibre Reinforced Concrete by : FIB – International Federation for Structural Concrete
Download or read book Fibre Reinforced Concrete written by FIB – International Federation for Structural Concrete and published by FIB - International Federation for Structural Concrete. This book was released on 2022-11-01 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fibre Reinforced Concrete (FRC) is a composite material characterized by an enhanced post-cracking tensile residual strength, due to the capacity of fibres to bridge the crack faces by means of pull-out mechanism. Due to a better knowledge of FRC and the recent developments worldwide of guidelines for structural design, the fib Special Activity Group 5, who prepared the new fib Model Code, decided to introduce some sections on new materials and in particular on FRC structural design. At that time, working Groups TG 8.3 (“Fibre reinforced concrete”) and TG 8.6 (“Ultra high performance fibre reinforced concrete”) of fib prepared these sections of the new fib Model Code concerning FRC design rules for providing a guidance to engineers to properly and safely design FRC structural elements, both at serviceability and at ultimate limit states, based on the state-of-the-art knowledge. This bulletin was written with the aim to share the main framework used by the two groups to introduce these two sections and to describe the many aspects already known, but not yet introduced in the Model Code. Even though the basic principles introduced in the two sections are mainly obtained from research on steel fibre reinforced concrete, the Model Code is open to every type of fibres, following a performance-based design approach. The bulletin represents a wide effort made by the people of the Task Group 4.1 and 4.2 to trace the knowledge on FRC and aims to be helpful for structural designers when using this new material in the practice.
Author :FIB – International Federation for Structural Concrete Publisher :FIB - International Federation for Structural Concrete ISBN 13 :1874266050 Total Pages :30 pages Book Rating :4.8/5 (742 download)
Book Synopsis Flexural ductility of prestressed concrete enhancement by lateral confinement by : FIB – International Federation for Structural Concrete
Download or read book Flexural ductility of prestressed concrete enhancement by lateral confinement written by FIB – International Federation for Structural Concrete and published by FIB - International Federation for Structural Concrete. This book was released on 1992-09-01 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Response of Ultra High Performance Fiber Reinforced Concrete Beams Under Flexure and Shear by : Roya Solhmirzaei
Download or read book Response of Ultra High Performance Fiber Reinforced Concrete Beams Under Flexure and Shear written by Roya Solhmirzaei and published by . This book was released on 2021 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultra high performance concrete (UHPC) is an advanced cementitious material made with low water to binder ratio and high fineness admixtures, and possesses a unique combination of superior strength, durability, corrosion resistance, and impact resistance. However, increased strength of UHPC results in a brittle behavior. To overcome this brittle behavior of UHPC and improve post cracking response of UHPC, steel fibers are often added to UHPC and this concrete type is designated as Ultra High Performance Fiber Reinforced Concrete (UHPFRC). Being a relatively new construction material, there are limited guidelines and specifications in standards and codes for the design of structural members fabricated using UHPFRC. To develop a deeper understanding on the behavior of UHPFRC flexural members, seven beams made of UHPFRC are tested under different loading conditions. The test variables include level of longitudinal reinforcement, type of loading (shear and flexure), and presence of shear reinforcement. Further, a finite element based numerical model for tracing structural behavior of UHPFRC beams is developed in ABAQUS. The developed model can account for the nonlinear material response of UHPFRC and steel reinforcement in both tension and compression, as well as bond between concrete and reinforcing steel, and can trace the detailed response of the beams in the entire range of loading. This model is validated by comparing predicted response parameters including load-deflection, load-strain, and crack propagation against experimental data obtained from tests on UHPFRC beams with different material characteristics and under different loading configurations. The validated model is applied to conduct a set of parametric studies to quantify the effect of different parameters on structural response of UHPFRC beams, including the contribution of stirrups and concrete to shear capacity of beams, to explore feasibility of removing the need for shear reinforcement in UHPFRC beams. Results from experiments and numerical model reveal that UHPFRC beams exhibit distinct cracking pattern characterized by the propagation of multiple micro cracks followed by widening of a single crack leading to failure. Also, UHPFRC beams exhibit high flexural and shear capacity, as well as ductility due to high compressive and tensile strength of UHPFRC and fiber bridging developing at the crack surfaces that leads to strain hardening in UHPFRC after cracking. Thus, absence of shear reinforcement in UHPFRC beams does not result in brittle failure, even under dominant shear loading. Data from the conducted experiments as well as those reported in literature is utilized to develop a machine learning (ML) framework for predicting structural response of UHPFRC beams. On this basis, a comprehensive database on reported tests on UHPFRC beams with different geometric, fiber properties, loading and material characteristics is collected. This database is then analyzed utilizing different ML algorithms, including support vector machine, artificial neural networks, k-nearest neighbor, support vector machine regression, and genetic programing, to develop a data-driven computational framework for predicting failure mode and flexural and shear capacity of UHPFRC beams. Predictions obtained from the proposed framework are compared against the values obtained from design equations in codes, and also results from full-scale tests to demonstrate the reliability of the proposed approach. The results clearly indicate that the proposed ML framework can effectively predict failure mode and flexural and shear capacity of UHPFRC beams with varying reinforcement detailing and configurations. The research presented in this dissertation contributes to the development of preliminary guidance on evaluating capacity of UHPFRC beams under different configurations.
Book Synopsis Strength and Ductility of Reinforced Concrete Members and Frames Constructed Using High Strength Concrete by : Bing Li
Download or read book Strength and Ductility of Reinforced Concrete Members and Frames Constructed Using High Strength Concrete written by Bing Li and published by . This book was released on 1993 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Non-linear Overload Behaviour and Ductility of Reinforced Concrete Flexural Members Containing 500MPa Grade Steel Reinforcement by : Rebecca Jane Gravina
Download or read book Non-linear Overload Behaviour and Ductility of Reinforced Concrete Flexural Members Containing 500MPa Grade Steel Reinforcement written by Rebecca Jane Gravina and published by . This book was released on 2002 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Investigates the overload behaviour and modes of collapse of reinforced concrete flexural members containing 500MPa grade reinforcing steel and evaluates the adequacy of current ductility requirements for design according to AS 3600 to ensure strength and safety.
