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Book Evaluation of Post fire Strength of Concrete Flexural Members Reinforced with Glass Fiber Reinforced Polymer  GFRP  Bars

Download or read book Evaluation of Post fire Strength of Concrete Flexural Members Reinforced with Glass Fiber Reinforced Polymer GFRP Bars written by Devon S. Ellis and published by . This book was released on 2009 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Fire Performance of Frp strengthened Concrete Flexural Members

Download or read book Fire Performance of Frp strengthened Concrete Flexural Members written by Pratik Prashant Bhatt and published by . This book was released on 2021 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last three decades, fiber reinforced polymer (FRP) materials have emerged as a promising solution for strengthening and retrofitting of concrete structural members owing to its high strength and durability properties. However, FRP undergoes rapid degradation in strength, modulus, and bond properties due to softening of polymer matrix and bonding adhesive even at moderately elevated temperatures. Therefore, an FRP-strengthened concrete member experiences rapid loss in capacity and stiffness resulting in lower fire resistance than an un-strengthened concrete member. The fire response of FRP-strengthened concrete structural members is influenced by several factors, and thus fire resistance evaluation requires advanced analysis. While several studies are available on fire resistance evaluation of FRP-strengthened reinforced concrete (RC) beams, limited information available on fire performance of FRP-strengthened concrete slabs. Moreover, the available studies on beams do not fully account for all the important factors influencing fire response of strengthened structural members. To address some of the knowledge gaps and to develop a fundamental understanding on the fire resistance of FPR-strengthened RC flexural members, experimental and numerical studies were carried out. As part of experimental studies, a series of tests were conducted at both material level and structural level. For material property characterization, uniaxial tensile tests and double lap shear tests were conducted at elevated temperatures to evaluate high temperature tensile strength of FRP and bond strength of FRP-concrete interface, respectively. For structural fire resistance characterization, tests were conducted on five FRP-strengthened concrete T-beams and two FRP-strengthened concrete slabs, wherein effect of strengthening level, reinforcement ratio, load levels, as well as insulation thickness and configuration was evaluated. As part of numerical studies, a macroscopic finite element based model, originally developed for strengthened RC beams, was further enhanced for evaluating thermo-mechanical response of strengthened RC slabs under fire conditions. The model accounts for temperature dependent material properties, as well as geometric and material nonlinearity. The novelty of model lies in consideration of temperature induced bond degradation through use of different temperature dependent bond-slip relations and in conducting a member level structural analysis rather than analyzing a single critical section. The model was validated using the above generated test data by comparing various response parameters and was applied to quantify the effect of critical factors influencing the fire resistance of FRP-strengthened concrete beams and slabs, through a set of parametric studies. Results from these studies indicate that the fire resistance of FRP-strengthened RC flexural members is significantly influenced by insulation geometry, fire scenario, and load levels, and is moderately influenced by strengthening level or reinforcement ratio. The generated test data as well as those reported in literature were utilized to develop machine learning (ML) based approach for predicting fire resistance of FRP-strengthened concrete beams. Three different ML algorithms, namely support vector regression, random forest regression, and deep neural networks, were successfully trained over the compiled dataset to develop fire resistance prediction models for strengthened RC beams. The accuracy of the trained models was determined by comparing the predictions from the model for an un-seen dataset Results indicate that ML based approaches can be effectively utilized for developing simplified tools for predicting fire resistance of strengthened concrete beams with different geometrical configuration, load levels, reinforcement ratio, and strengthening level.

Book Guide for the Design and Construction of Concrete Reinforced with Fiber Reinforced Polymer Bars

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:

Book Composites for Construction

Download or read book Composites for Construction written by Lawrence C. Bank and published by John Wiley & Sons. This book was released on 2006-07-21 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first textbook on the design of FRP for structural engineering applications Composites for Construction is a one-of-a-kind guide to understanding fiber-reinforced polymers (FRP) and designing and retrofitting structures with FRP. Written and organized like traditional textbooks on steel, concrete, and wood design, it demystifies FRP composites and demonstrates how both new and retrofit construction projects can especially benefit from these materials, such as offshore and waterfront structures, bridges, parking garages, cooling towers, and industrial buildings. The code-based design guidelines featured in this book allow for demonstrated applications to immediately be implemented in the real world. Covered codes and design guidelines include ACI 440, ASCE Structural Plastics Design Manual, EUROCOMP Design Code, AASHTO Specifications, and manufacturer-published design guides. Procedures are provided to the structural designer on how to use this combination of code-like documents to design with FRP profiles. In four convenient sections, Composites for Construction covers: * An introduction to FRP applications, products and properties, and to the methods of obtaining the characteristic properties of FRP materials for use in structural design * The design of concrete structural members reinforced with FRP reinforcing bars * Design of FRP strengthening systems such as strips, sheets, and fabrics for upgrading the strength and ductility of reinforced concrete structural members * The design of trusses and frames made entirely of FRP structural profiles produced by the pultrusion process

Book A New Configuration of Glass Fiber Reinforced Polymer as Reinforcement for Concrete Flexural Members

Download or read book A New Configuration of Glass Fiber Reinforced Polymer as Reinforcement for Concrete Flexural Members written by David Edward Rietz and published by . This book was released on 2001 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research investigated the effectiveness of a new configuration of GFRP reinforcing bar as possible reinforcement for tension in reinforced concrete flexural members. Eleven concrete beams reinforced with two types of "web" bars were tested in flexure to failure. Five concrete beams reinforced with materials already being used in the construction industry were tested in flexure to failure. The results from these beam tests were compared with the results from the beams reinforced with the new web bars. Observations were made regarding mode of failure, cracking behavior, and deflection behavior of concrete beams using this new type of GFRP web bar reinforcement. A flexural analysis was performed to compare moment capacities using theoretical methods and ultimate moments from experimental results. A deflection analysis was performed to compare theoretical equations for effective moment of inertia, developed for simply supported FRP reinforced concrete beams, with the ACI model for conventional steel reinforced beams and deflection data from experimental results. Also, shear capacities and development lengths based on ACI 440 provisions were compared to the experimental results.

Book Flexural Ductility Improvement of Frp Reinforced Concrete Members

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

Book Fibre reinforced Polymer Reinforcement for Concrete Structures

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

Book Reinforced Concrete with FRP Bars

Download or read book Reinforced Concrete with FRP Bars written by Antonio Nanni and published by CRC Press. This book was released on 2014-03-05 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corrosion-resistant, electromagnetic transparent and lightweight fiber-reinforced polymers (FRPs) are accepted as valid alternatives to steel in concrete reinforcement. Reinforced Concrete with FRP Bars: Mechanics and Design, a technical guide based on the authors more than 30 years of collective experience, provides principles, algorithms, and pr

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

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.

Book Recommended Guide Specification for the Design of Externally Bonded FRP Systems for Repair and Strengthening of Concrete Bridge Elements

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.

Book Non Traditional Shape GFRP Rebars for Concrete Reinforcement

Download or read book Non Traditional Shape GFRP Rebars for Concrete Reinforcement written by Guillermo G Claure and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of glass-fiber-reinforced-polymer (GFRP) composites as internal reinforcement (rebars) for concrete structures has proven to be an alternative to traditional steel reinforcement due to significant advantages such as magnetic transparency and, most importantly, corrosion resistance equating to durability and structural life extension. In recent years, the number of projects specifying GFRP reinforcement has increased dramatically leading the construction industry towards more sustainable practices. Typically, GFRP rebars are similar to their steel counterparts having external deformations or surface enhancements designed to develop bond to concrete, as well as having solid circular cross-sections; but lately, the worldwide composites industry has taken advantage of the pultrusion process developing GFRP rebars with non-traditional cross-sectional shapes destined to optimize their mechanical, physical, and environmental attributes. Recently, circular GFRP rebars with a hollow-core have also become available. They offer advantages such as a larger surface area for improved bond, and the use of the effective cross-sectional area that is engaged to carry load since fibers at the center of a solid cross-section are generally not fully engaged. For a complete understanding of GFRP rebar physical properties, a study on material characterization regarding a quantitative cross-sectional area analysis of different GFRP rebars was undertaken with a sample population of 190 GFRP specimens with rebar denomination ranging from #2 to #6 and with different cross-sectional shapes and surface deformations manufactured by five pultruders from around the world. The water displacement method was applied as a feasible and reliable way to conduct the investigation. In addition to developing a repeatable protocol for measuring cross-sectional area, the objectives of establishing critical statistical information related to the test methodology and recommending improvements to existing provisions and standards allowing for a consistent universal norm for all GFRP rebars were reached. This dissertation also presents an evaluation of the structural behavior of reinforced concrete (RC) beams and slabs using the new type of GFRP rebar consisting of a non-traditional hollow-core shape compared to "traditional" solid round rebars with equivalent cross-sectional areas within the framework of two studies, respectively. To validate the design assumptions following ACI 440.1R design guidelines, two conditions were investigated: under-reinforced (failure controlled by rupture of GFRP rebar); and, over-reinforced (failure controlled by crushing of concrete). For comparison, a cyclic three-point bending load test matrix was developed: for beams, 3 under-reinforced and 3 over-reinforced with hollow-core and solid GFRP rebars, respectively, making a total of 12 RC specimens; for slabs, 3 under-reinforced and 3 over-reinforced with hollow-core and 2 types of solid GFRP rebars, respectively, making a total of 18 RC slabs. The studies on GFRP RC beams and slabs concluded that the hollow-core GFRP rebars were as effective as their solid counterpart and ACI 440.1R design guidelines were applicable to predict their performance. It was shown that final design may be controlled by the permissible deflections as governing parameter for elements under service conditions. Also, a final study with a test matrix containing six extra specimens was generated for post-fire residual strength evaluation of fire-exposed GFRP RC slabs along with temperature gradient in the slabs and dynamic mechanical analysis (DMA) investigation on GFRP samples extracted from the fire-exposed slabs. In this study, the ability of GFRP RC slabs to retain structural integrity during a standards fire exposure as well as determining the residual structural capacity were investigated. The residual strength evaluation of the fire-exposed slabs showed a range of results varying between ± 10%, of the virgin slabs. And, 19 mm (0.75 in.) cover with normal weight concrete was shown to be adequate to provide the necessary fire protection to the GFRP rebars preventing irreversible damage for two-hour fire rated GFRP RC slabs subjected to service loads; also, from the DMA and glass transition temperature of samples extracted from the GFRP rebars, it is inferred that the resin had undergone a post curing phase.

Book Performance Evaluation of Glass Fiber Reinforced Polymer  GFRP  Reinforcing Bars Embedded in Concrete Under Aggressive Environments

Download or read book Performance Evaluation of Glass Fiber Reinforced Polymer GFRP Reinforcing Bars Embedded in Concrete Under Aggressive Environments written by and published by . This book was released on 2018 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: Florida State University researchers reviewed current glass fiber reinforced polymer (GFRP) technologies and tested GFRP products in order to provide additional guidance for integrating GFRP technology into existing design guidelines.

Book Flexural Behavior of Basalt FRP Bar Reinforced Concrete Members with and Without Polypropylene Fiber

Download or read book Flexural Behavior of Basalt FRP Bar Reinforced Concrete Members with and Without Polypropylene Fiber written by Subhashini Neela and published by . This book was released on 2010 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thesis presents the results of an experimental investigation of the performance characteristics of concrete members reinforced with basalt fiber reinforced polymer (BFRP) bars along with polypropylene fibers. The primary objective of the research is the identification of the stress-strain relationship which ensues the determination of the load-strain behavior and maximum load capacity of the basalt FRP reinforced slabs reinforced with or without polypropylene fiber. The slab tests were designed to determine the influence of concrete strength and percentage volume of fiber on the maximum load capacity, shear strength, deflections and ductility. One of the objectives of the slab tests is also the study of the load-deflection behavior of the basalt FRP reinforced beams with and without polypropylene fiber. Another objective of the research is to check the validity of the code defined design methods for the calculation of shear strength for FRP reinforced beams made from fiber reinforced concrete. The secondary objective of this research was to study the effect of polypropylene fiber on the post-cracking strengths of beams and round determinate panels and to find the correlation between the beam and panel specimens. To achieve the objectives of this study, large number of plain and fiber reinforced concrete slab elements, and cylinders were cast with two different fiber dosages (1.0% and 0.5% volume fraction). The type of fiber used was Ferro (2.25"). All the slabs were tested under four-point bending to determine the maximum load capacity of slabs. Six fiber reinforced concrete beams and two round panels with 0.5% volume fraction of fiber were cast to determine the average residual strength (ARS) and toughness properties respectively. The standard test methods ASTM C1399 was used for testing the beams and ASTM C1550 was used for testing the round panels. The cylinder compression tests revealed that compressive strength decreased marginally with the increase in fiber dosage. The load carrying capacity of the slabs particularly in shear strength mode is found to increase with the addition of polypropylene fiber to the concrete in spite of the lower concrete strength. The concrete compressive strains and the tensile bar strains were found to increase with the addition of fiber. The deflections were decreased with the addition of fiber to the concrete. For the polypropylene fiber reinforced concrete slabs, an average of 8% difference was observed in the predicted values of maximum load obtained using the proposed model, an average of 9% difference using the Desayi and Krishnan curve for plain concrete, an average of 8% difference using the Hognestad's Model and an average of 20% difference using the ACI 440.1R method with failure loads being greater than the predicted strengths. For the slabs without polypropylene fiber, an average of 16% difference was observed in the predicted values of maximum load obtained using Desayi and Krishnan curve and an average of 18% difference was observed using Hognestad's Model and 12% difference using the ACI method with predicted strengths being much greater than the corresponding failure loads obtained from tests. The theoretical deflections determined using the ACI 400.1R method was reasonably close to the experimental deflections obtained from tests. A need for the improvement of shear strength equations given by ACI 440.1R is determined based on the comparison of experimental shear strength to the shear strength equation given by ACI 440.1R. The amount of energy stored in concrete with respect to that stored in BFRP bars is determined using the Proposed method and Hognestad's model. The evaluations show that in spite of the lower concrete strengths of the polypropylene fiber-reinforced concrete slabs compared to the plain slabs, the percentage of energy stored in concrete for the polypropylene-fiber reinforced concrete slabs is found almost more or less equal to the percentage of energy stored in concrete for the slabs without fiber. For the ductility of the slabs, the ducitility index is found to decrease with increasing reinforcement ratio. With the addition of polypropylene fiber to the slabs, the ductility of the slabs was found to be less than that for the slabs without fiber due to the lower concrete strength of the polypropylene fiber-reinforced concrete slabs. For the study of post-cracking strength, five beams and two round panels were tested. From the beam tests, the average residual strength of the polypropylene fiber reinforced concrete beams were found to be greater than the average residual strength of the beam observed from literature. From the round panel tests, the toughness of the polypropylene fiber reinforced concrete panels was found to be greater than toughness of the panels observed from the published literature. From these tests, the correlation between the flexural toughness of beam and panel specimens was also studied and compared with the published literature. It was found that the linear correlation suggested in literature for other types of fiber is equally valid for polypropylene fiber.

Book Evaluation of Minimum Thickness Requirements for FRP Reinforced Concrete

Download or read book Evaluation of Minimum Thickness Requirements for FRP Reinforced Concrete written by Stuart Veysey and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Flexural design of fibre reinforced polymer (FRP) reinforced concrete members can be an iterative and time-consuming approach. Recommended minimum member thicknesses are available for design, but often lead to overly thick members. The research in this document presents an evaluation of member thickness requirements for FRP reinforced concrete flexural members (one way slabs and beams). A review of design requirements from applicable North American design standards for FRP reinforced concrete is presented and compared with design requirements for steel reinforced concrete. Formulations for member span-to-depth (L/h) ratios are developed for flexural strength, incremental and live load deflection, crack control, creep rupture requirements, and compressive stress limits in the concrete. Shear strength and development length are not considered. An extensive parametric study is carried out to investigate all pertinent design criteria and show their effects on the applicable design requirements. Results show that flexural members designed for strength typically do not satisfy serviceability. Design is controlled mostly by serviceability related to either deflection (slabs and beams) or crack control (beams using FRP with poor bond). L / h ratios based on incremental deflection requirements provide a good starting point for design, and are used to establish recommended values of minimum member thickness as a design aid. Design examples are presented to demonstrate an efficient design procedure for FRP reinforced concrete."--Page iii.

Book Developments in fiber reinforced polymer  FRP  composites for civil engineering

Download or read book Developments in fiber reinforced polymer FRP composites for civil engineering written by D. Lau and published by Elsevier Inc. Chapters. This book was released on 2013-05-15 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fiber-reinforced polymer (FRP) has been a practical alternative construction material for replacing steel in the construction industry for several decades. However, some mechanical weaknesses of FRP are still unresolved, which limit the extensive use of this material in civil infrastructure. In order to mitigate the disadvantage of using FRP, the concept of hybridization is delivered here. The advantages of hybrid structural systems include the cost effectiveness and the ability to optimize the cross section based on material properties of each constituent material. In this chapter, two major applications of hybrid FRP composites are discussed: (1) the internal reinforcement in reinforced concrete (RC) structures, and (2) the cables in long-span cable-stayed bridges. In order to improve the flexural ductility of FRP-reinforced concrete (FRPRC) beam, the additional steel longitudinal reinforcement is proposed such that the hybrid FRPRC beams contain both FRP and steel reinforcement. In order to improve the vibrational problem in pure FRP cables used in bridge construction, an innovative hybrid FRP cable which can inherently incorporate a smart damper is proposed. The objective of this chapter is to deliver an up-to-date review of hybrid FRP composite structures, including both the industrial practice and the research in academia. The advantages of using hybrid FRP composites for construction will also be described with experimental support. It is hoped that the reader will appreciate the concept of hybridization, which leads to the efficient utilization of all constituent materials in a bonded system.

Book Rehabilitation of Concrete Structures with Fiber Reinforced Polymer

Download or read book Rehabilitation of Concrete Structures with Fiber Reinforced Polymer written by Riadh Al-Mahaidi and published by Butterworth-Heinemann. This book was released on 2018-11-12 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rehabilitation of Concrete Structures with Fiber Reinforced Polymer is a complete guide to the use of FRP in flexural, shear and axial strengthening of concrete structures. Through worked design examples, the authors guide readers through the details of usage, including anchorage systems, different materials and methods of repairing concrete structures using these techniques. Topics include the usage of FRP in concrete structure repair, concrete structural deterioration and rehabilitation, methods of structural rehabilitation and strengthening, a review of the design basis for FRP systems, including strengthening limits, fire endurance, and environmental considerations. In addition, readers will find sections on the strengthening of members under flexural stress, including failure modes, design procedures, examples and anchorage detailing, and sections on shear and torsion stress, axial strengthening, the installation of FRP systems, and strengthening against extreme loads, such as earthquakes and fire, amongst other important topics. - Presents worked design examples covering flexural, shear, and axial strengthening - Includes complete coverage of FRP in Concrete Repair - Explores the most recent guidelines (ACI440.2, 2017; AS5100.8, 2017 and Concrete society technical report no. 55, 2012)

Book Reinforced Concrete with FRP Bars

Download or read book Reinforced Concrete with FRP Bars written by Antonio Nanni and published by CRC Press. This book was released on 2014-03-05 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corrosion-resistant, electromagnetic transparent and lightweight fiber-reinforced polymers (FRPs) are accepted as valid alternatives to steel in concrete reinforcement. Reinforced Concrete with FRP Bars: Mechanics and Design, a technical guide based on the authors’ more than 30 years of collective experience, provides principles, algorithms, and practical examples. Well-illustrated with case studies on flexural and column-type members, the book covers internal, non-prestressed FRP reinforcement. It assumes some familiarity with reinforced concrete, and excludes prestressing and near-surface mounted reinforcement applications. The text discusses FRP materials properties, and addresses testing and quality control, durability, and serviceability. It provides a historical overview, and emphasizes the ACI technical literature along with other research worldwide. Includes an explanation of the key physical mechanical properties of FRP bars and their production methods Provides algorithms that govern design and detailing, including a new formulation for the use of FRP bars in columns Offers a justification for the development of strength reduction factors based on reliability considerations Uses a two –story building solved in Mathcad® that can become a template for real projects This book is mainly intended for practitioners and focuses on the fundamentals of performance and design of concrete members with FRP reinforcement and reinforcement detailing. Graduate students and researchers can use it as a valuable resource. Antonio Nanni is a professor at the University of Miami and the University of Naples Federico II. Antonio De Luca and Hany Zadeh are consultant design engineers.