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Author : Daniel Mal Bok Dowden
Publisher :
ISBN 13 :
Total Pages : 130 pages
Book Rating : 4.:/5 (385 download)
Download or read book Shear Capacity of Prestressed Concrete Beams Reinforced with FRP Reinforcement written by Daniel Mal Bok Dowden and published by . This book was released on 1997 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Yassin Abbas
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (14 download)
Download or read book Evaluation of CFRP Reinforced Prestressed Concrete Beams for Shear Behavior written by Yassin Abbas and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fiber-reinforced polymer (FRP) can be effectively utilized in structures as rods, sheets, bars, and tendons due to its high strength-to-weight ratio, non-corrosiveness, non-magnetic properties, and its flexibility. FRPs include carbon fiber-reinforced polymers (CFRPs), aramid fiber-reinforced polymers (AFRPs), and glass fiber-reinforced polymers (GFRPs). Previous studies have investigated these materials under various load conditions and in a variety of structures, including prestressed concrete beams reinforced with CFRP, which has the highest tensile modulus out of all the FRP varieties. The increasing popularity of FRP as a reinforcement particularly as prestressing tendons in concrete structures is prompting research to more accurately predict the behavior of such structures under various types of loading and boundary conditions. Although many studies have investigated the flexural behavior of beams reinforced with FRP, few studies have focused on their complex shear behavior. Design guidelines in the U.S. such as ACI440.4R-04 and AASHTO 2018 have been published to support the design of structures using FRP. The objective of this thesis was to evaluate these guidelines for accuracy in predicting nominal shear capacity using prestressed concrete beams reinforced with CFRP. This study also aimed to offer alternative solutions to improve calculations of nominal shear capacity for prestressed beams reinforced with CFRP tendons.
Author : Perumalsamy Balaguru
Publisher : CRC Press
ISBN 13 : 0203926889
Total Pages : 348 pages
Book Rating : 4.2/5 (39 download)
Download or read book FRP Composites for Reinforced and Prestressed Concrete Structures written by Perumalsamy Balaguru and published by CRC Press. This book was released on 2008-11-05 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: High strength fibre composites (FRPs) have been used with civil structures since the 1980s, mostly in the repair, strengthening and retrofitting of concrete structures. This has attracted considerable research, and the industry has expanded exponentially in the last decade. Design guidelines have been developed by professional organizations in a number of countries including USA, Japan, Europe and China, but until now designers have had no publication which provides practical guidance or accessible coverage of the fundamentals. This book fills this void. It deals with the fundamentals of composites, and basic design principles, and provides step-by-step guidelines for design. Its main theme is the repair and retrofit of un-reinforced, reinforced and prestressed concrete structures using carbon, glass and other high strength fibre composites. In the case of beams, the focus is on their strengthening for flexure and shear or their stiffening. The main interest with columns is the improvement of their ductility; and both strengthening and ductility improvement of un-reinforced structures are covered. Methods for evaluating the strengthened structures are presented. Step by step procedures are set out, including flow charts, for the various structural components, and design examples and practice problems are used to illustrate. As infrastructure ages worldwide, and its demolition and replacement becomes less of an option, the need for repair and retrofit of existing facilities will increase. Besides its audience of design professionals, this book suits graduate and advanced undergraduate students.
Author : Abdeldjelil Belarbi
Publisher : Transportation Research Board
ISBN 13 : 0309155312
Total Pages : 130 pages
Book Rating : 4.3/5 (91 download)
Download or read book Design of FRP Systems for Strengthening Concrete Girders in Shear written by Abdeldjelil Belarbi and published by Transportation Research Board. This book was released on 2011 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Report 678: Design of FRP Systems for Strengthening Concrete Girders in Shear offers suggested design guidelines for concrete girders strengthened in shear using externally bonded Fiber-Reinforced Polymer (FRP) systems. The guidelines address the strengthening schemes and application of the FRP systems and their contribution to shear capacity of reinforced and prestressed concrete girders. The guidelines are supplemented by design examples to illustrate their use for concrete beams strengthened with different FRP systems. Appendix A of NCHRP Report 678, which contains the research agency's final report, provides further elaboration on the work performed in this project. Appendix A: Research Description and Findings, is only available online.
Author : Sang Yeol Park
Publisher :
ISBN 13 :
Total Pages : 426 pages
Book Rating : 4.3/5 (91 download)
Download or read book Shear Behavior of Prestressed Concrete Beams Using Fiber Reinforced Plastic Tendons written by Sang Yeol Park and published by . This book was released on 1997 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David A. Hensher
Publisher : Elsevier
ISBN 13 : 148329143X
Total Pages : 459 pages
Book Rating : 4.4/5 (832 download)
Download or read book Fiber-Reinforced-Plastic (FRP) Reinforcement for Concrete Structures written by David A. Hensher and published by Elsevier. This book was released on 2016-01-22 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of fiber reinforced plastic (FRP) composites for prestressed and non-prestressed concrete reinforcement has developed into a technology with serious and substantial claims for the advancement of construction materials and methods. Research and development is now occurring worldwide. The 20 papers in this volume make a further contribution in advancing knowledge and acceptance of FRP composites for concrete reinforcement. The articles are divided into three parts. Part I introduces FRP reinforcement for concrete structures and describes general material properties and manufacturing methods. Part II covers a three-continent perspective of current R&D, design and code implementations, and technical organizations' activities. Part III presents an in-depth description of commercially-available products, construction methods, and applications. The work is intended for engineers, researchers, and developers with the objective of presenting them with a world-wide cross-section of initiatives, representative products and significant applications.
Author : Kiang-Hwee Tan
Publisher : World Scientific
ISBN 13 : 9812704868
Total Pages : 755 pages
Book Rating : 4.8/5 (127 download)
Download or read book Fibre-reinforced Polymer Reinforcement for Concrete Structures written by Kiang-Hwee Tan and published by World Scientific. This book was released on 2003 with total page 755 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fibre-reinforced polymer (FRP) reinforcement has been used in construction as either internal or external reinforcement for concrete structures in the past decade. This book provides the latest research findings related to the development, design and application of FRP reinforcement in new construction and rehabilitation works. The topics include FRP properties and bond behaviour, externally bonded reinforcement for flexure, shear and confinement, FRP structural shapes, durability, member behaviour under sustained loads, fatigue loads and blast loads, prestressed FRP tendons, structural strengthening applications, case studies, and codes and standards. Contents: .: Volume 1: Keynote Papers; FRP Materials and Properties; Bond Behaviour; Externally Bonded Reinforcement for Flexure; Externally Bonded Reinforcement for Shear; Externally Bonded Reinforcement for Confinement; FRP Structural Shapes; Volume 2: Durability and Maintenance; Sustained and Fatigue Loads; Prestressed FRP Reinforcement and Tendons; Structural Strengthening; Applications in Masonry and Steel Structures; Field Applications and Case Studies; Codes and Standards. Readership: Upper level graduates, graduate students, academics and researchers in materials science and engineering; practising engineers and project managers
Author :
Publisher :
ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.:/5 (227 download)
Download or read book Shear Strengthening of Reinforced Concrete Beams Using Fiber-Reinforced Polymer Wraps written by and published by . This book was released on 1998 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies have shown that fiber-reinforced polymer (FRP) wraps can improve the capacity of rectangular beam sections. This technology has potential application to highway bridges that may have less shear capacity than flexural capacity or require added load capacity to handle current traffic demands. Compared with steel repair materials FRP offers several benefits, such as corrosion resistance and field-workability. Several studies have investigated the use of externally bonded FRP sheets to improve strength and stiffness of reinforced concrete (R/C) beams, but most have addressed flexural strength, not shear. The objective of the current study was to test the effectiveness of FRP wraps in repairing full-scale prestressed high-strength concrete joists fabricated with insufficient shear reinforcement. Four prestressed high-strength concrete tee-beams (joists) with integral web openings were tested. Two of the joists were repaired or upgraded with FRP wraps to improve shear performance and two were used as control specimens. Performance criteria were specified, and standard structural engineering practice for shear design was employed to determine wrap thickness. The results of the tests indicate that significant increases in the shear strength of R/C beams with insufficient shear capacity can be achieved by proper application of FRP wraps.
Author : L. Taerwe
Publisher : CRC Press
ISBN 13 : 1482271621
Total Pages : 736 pages
Book Rating : 4.4/5 (822 download)
Download or read book Non-Metallic (FRP) Reinforcement for Concrete Structures written by L. Taerwe and published by CRC Press. This book was released on 2004-06-02 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dealing with a wide range of non-metallic materials, this book opens up possibilities of lighter, more durable structures. With contributions from leading international researchers and design engineers, it provides a complete overview of current knowledge on the subject.
Author :
Publisher : DIANE Publishing
ISBN 13 : 1428913084
Total Pages : 76 pages
Book Rating : 4.4/5 (289 download)
Download or read book Shear Strengthening of Reinforced Concrete Beams Using Fiber-Reinforced Polymer Wraps written by and published by DIANE Publishing. This book was released on with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Carlo Pellegrino
Publisher : Springer
ISBN 13 : 940177336X
Total Pages : 406 pages
Book Rating : 4.4/5 (17 download)
Download or read book Design Procedures for the Use of Composites in Strengthening of Reinforced Concrete Structures written by Carlo Pellegrino and published by Springer. This book was released on 2015-08-25 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book analyses the current knowledge on structural behaviour of RC elements and structures strengthened with composite materials (experimental, analytical and numerical approaches for EBR and NSM), particularly in relation to the above topics, and the comparison of the predictions of the current available codes/recommendations/guidelines with selected experimental results. The book shows possible critical issues (discrepancies, lacunae, relevant parameters, test procedures, etc.) related to current code predictions or to evaluate their reliability, in order to develop more uniform methods and basic rules for design and control of FRP strengthened RC structures. General problems/critical issues are clarified on the basis of the actual experiences, detect discrepancies in existing codes, lacunae in knowledge and, concerning these identified subjects, provide proposals for improvements. The book will help to contribute to promote and consolidate a more qualified and conscious approach towards rehabilitation and strengthening existing RC structures with composites and their possible monitoring.
Author : Kiang Hwee Tan
Publisher : World Scientific
ISBN 13 : 9814485748
Total Pages : 1526 pages
Book Rating : 4.8/5 (144 download)
Download or read book Fibre-reinforced Polymer Reinforcement For Concrete Structures (In 2 Volumes) - Proceedings Of The Sixth International Symposium On Frp Reinforcement For Concrete Structures (Frprcs-6) written by Kiang Hwee Tan and published by World Scientific. This book was released on 2003-06-20 with total page 1526 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fibre-reinforced polymer (FRP) reinforcement has been used in construction as either internal or external reinforcement for concrete structures in the past decade. This book provides the latest research findings related to the development, design and application of FRP reinforcement in new construction and rehabilitation works. The topics include FRP properties and bond behaviour, externally bonded reinforcement for flexure, shear and confinement, FRP structural shapes, durability, member behaviour under sustained loads, fatigue loads and blast loads, prestressed FRP tendons, structural strengthening applications, case studies, and codes and standards.
Author : ACI Committee 440
Publisher :
ISBN 13 : 9780870311185
Total Pages : 42 pages
Book Rating : 4.3/5 (111 download)
Download or read book Guide for the Design and Construction of Concrete Reinforced with Fiber-Reinforced Polymer Bars written by ACI Committee 440 and published by . This book was released on 2003 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Abdul-Hamid Zureick
Publisher : Transportation Research Board
ISBN 13 : 0309154855
Total Pages : 118 pages
Book Rating : 4.3/5 (91 download)
Download or read book Recommended Guide Specification for the Design of Externally Bonded FRP Systems for Repair and Strengthening of Concrete Bridge Elements written by Abdul-Hamid Zureick and published by Transportation Research Board. This book was released on 2009 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Report 655: Recommended Guide Specification for the Design of Externally Bonded FRP Systems for Repair and Strengthening of Concrete Bridge Elements examines a recommended guide specification for the design of externally bonded Fiber-Reinforced Polymer (FRP) systems for the repair and strengthening of concrete bridge elements. The report addresses the design requirements for members subjected to different loading conditions including flexure, shear and torsion, and combined axial force and flexure. The recommended guide specification is supplemented by design examples to illustrate its use for different FRP strengthening applications.
Author : Alison Agapay
Publisher :
ISBN 13 :
Total Pages : 292 pages
Book Rating : 4.:/5 (1 download)
Download or read book Test of Prestressed Concrete T-beams Retrofitted for Shear and Flexure Using Carbon Fiber Reinforced Polymers written by Alison Agapay and published by . This book was released on 2004 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jae-Sung Cho
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (794 download)
Download or read book Shear Behavior of Steel Fiber Reinforced Prestressed Concrete Beams Without Shear Reinforcement written by Jae-Sung Cho and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The ACI 318-08 building code allows to use the steel fiber reinforcement as alternative shear reinforcement with satisfying certain criteria when a beam is required minimum shear reinforcement. However, this provision applies to a nonprestressed and prestressed concrete beam such that it could be conservative since the shear strength of prestressed concrete beam is generally enhanced due to the prestressing force. This is due partially to the fact that the provision has been accepted based on researches, mostly conducted in nonprestressed concrete beam. Most of experiments conducted for prestressed concrete beam in small scale tests, with a height of specimens were less than 10 in. A larger scale of experiment is required due to concerns of size effect. In addition, in order to evaluate the qualification of a Steel Fiber Reinforced Concrete (SFRC) mixture used for structural applications, such as increasing shear resistance, a material evaluation method is essential. Currently ASTM or ACI Committee 544 (Fiber-Reinforced Concrete) does not recommend any standardized test method for evaluating shear performance of a particular SFRC material. This study addresses the research gaps described above by testing large-scale Steel Fiber Reinforced Prestressed Concrete (SFRPC) beams as well as developing a simple laboratory test techniques. A total 13 simply-supported beams for large-scale test with a shear span to effective depth ratio of 3.0 and a height of 24 in. were subjected to monotonically-increased, concentrated load. The test parameters were mainly included compressive strength, volume fraction of steel fibers, compressive reinforcement ratio. The results of large-scale test showed that the use of hooked steel fibers in a volume fraction greater than or equal to 0.50% volume fraction of steel fibers (67 lb per cubic yard), which is less than requirement by ACI 318-08 (0.75%, 100 lb per cubic yard), led to substantial enhancement of shear behaviors including the first cracking, the ultimate, and ductility. High compressive strength of SFRC, greater than 9000 psi, which is higher than ACI 318-08 requirement (less than 6000 psi) could be used as well. However, there was no significant effect from compressive reinforcement ratio. A simply shear test method for SFRC was proposed in this study. The test apparatus is almost exactly the same as the conventional ASTM bending test with only minor modification, in addition, it could simulate a pure shear stress by adjusting loading and support positions. By introducing a proper reinforcement for bending stress, it was possible to evaluate shear performance of SFRC with clear and uncomplicated shear stress field in the critical section.
Author : Mirpayam Nabipaylashgari
Publisher :
ISBN 13 :
Total Pages : 264 pages
Book Rating : 4.:/5 (855 download)
Download or read book Shear Strength of Concrete Beams Prestressed with CFRP Cables written by Mirpayam Nabipaylashgari and published by . This book was released on 2012 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis investigates the shear capacity of concrete T-beams prestressed with CFRP cables (CFCC) and contributes to the scarce research available for shear behavior of FRP prestressed concrete beams. Four beams are tested under distributed load, while twelve beams are tested under four point bending. Three different a/d ratios of 1.5, 2.5 and 3.5 are investigated. The results show that the shear capacity of the beams increases significantly when a/d is reduced below 2.5. The effect of FRP stirrups on the shear capacity of the beams is investigated and it is shown that the minimum required stirrups according to CSA-S6-10 are ineffective in deep beams with a/d = 1.5. The accuracy of current North American shear design formulas for FRP prestressed concrete beams subjected to four-point bending and distributed load is evaluated. The available strut and tie models are studied for determining the shear capacity of FRP prestressed deep beams.
