Structures Strengthened with Bonded Composites

Structures Strengthened with Bonded Composites
Author: Zhishen Wu,Yufei Wu,Mohamed F.M. Fahmy
Publsiher: Woodhead Publishing
Total Pages: 556
Release: 2020-07-15
ISBN 10: 0128210893
ISBN 13: 9780128210895
Language: EN, FR, DE, ES & NL

Structures Strengthened with Bonded Composites Book Review:

Structures Strengthened with Bonded Composites presents a comprehensive resource on the strengthening of concrete, reinforced and prestressed concrete, masonry, steel and other composite structures using externally-bonded FRP composites. The book emphasizes a systematic and fundamental investigation on bonding and debonding behavior of the FRP-concrete interface and structural performances of FRP-strengthened structures with a combination of experimental, theoretical and numerical studies. This book will appeal to all those concerned with strengthening and retrofitting of existing structures from the effect of additional anticipated loads in the civil sector. Discusses the FRP strengthening of different types of structures, including bridges, tunnels, buildings, historic structures and underwater constructions Establishes a systematic theory on interfacial fracture mechanics and clarifies different debonding mechanisms Describes design methods and makes comparison of design considerations and methods among different countries Presents temperature and fatigue effects and long-term behavior for different strengthening methods

Strengthening of Reinforced Concrete Structures

Strengthening of Reinforced Concrete Structures
Author: L C Hollaway,M Leeming
Publsiher: Elsevier
Total Pages: 352
Release: 1999-03-05
ISBN 10: 1855737612
ISBN 13: 9781855737617
Language: EN, FR, DE, ES & NL

Strengthening of Reinforced Concrete Structures Book Review:

The in situ rehabilitation or upgrading of reinforced concrete members using bonded steel plates is an effective, convenient and economic method of improving structural performance. However, disadvantages inherent in the use of steel have stimulated research into the possibility of using fibre reinforced polymer (FRP) materials in its place, providing a non-corrosive, more versatile strengthening system. This book presents a detailed study of the flexural strengthening of reinforced and prestressed concrete members using fibre reinforces polymer composite plates. It is based to a large extent on material developed or provided by the consortium which studied the technology of plate bonding to upgrade structural units using carbon fibre / polymer composite materials. The research and trial tests were undertaken as part of the ROBUST project, one of several ventures in the UK Government's DTI-LINK Structural Composites Programme. The book has been designed for practising structural and civil engineers seeking to understand the principles and design technology of plate bonding, and for final year undergraduate and postgraduate engineers studying the principles of highway and bridge engineering and structural engineering. Detailed study of the flexural strengthening of reinforced and prestressed concrete members using fibre reinforced polymer composites Contains in-depth case histories

Advanced Polymer Composites for Structural Applications in Construction

Advanced Polymer Composites for Structural Applications in Construction
Author: L C Hollaway
Publsiher: Elsevier
Total Pages: 784
Release: 2004-04-22
ISBN 10: 1845690648
ISBN 13: 9781845690649
Language: EN, FR, DE, ES & NL

Advanced Polymer Composites for Structural Applications in Construction Book Review:

Over the past three decades advanced polymer composites have emerged as an attractive construction material for new structures and the strengthening/rehabilitation of existing buildings and bridges. The techniques associated with the technology, analysis and design of polymer composites in construction are continually being researched and the progress made with this exciting material will continue at an ever- increasing rate to meet the demands of the construction industry. This volume of proceedings is from the Second ACIC 2004 International Conference, which focused on the application and further exploitation of advanced composites in construction. The conference allowed practising engineers, asset managers, researchers and representative of regulatory bodies to promote the active exchange of scientific and technical information on the rapidly changing scene of advanced composites in construction. This volume focuses on the presentation of new concepts, techniques and case studies, which will lead to greater exploitation of advanced polymer composites and FRP materials for civil engineering infrastructure, rehabilitation and renewal. Presents new concepts, techniques and case studies

Design Procedures for the Use of Composites in Strengthening of Reinforced Concrete Structures

Design Procedures for the Use of Composites in Strengthening of Reinforced Concrete Structures
Author: Carlo Pellegrino,José Sena-Cruz
Publsiher: Springer
Total Pages: 392
Release: 2015-08-25
ISBN 10: 940177336X
ISBN 13: 9789401773362
Language: EN, FR, DE, ES & NL

Design Procedures for the Use of Composites in Strengthening of Reinforced Concrete Structures Book Review:

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.

Retrofitting of Concrete Structures by Externally Bonded FRPs With Emphasis on Seismic Applications

Retrofitting of Concrete Structures by Externally Bonded FRPs  With Emphasis on Seismic Applications
Author: fib Fédération internationale du béton
Publsiher: fib Fédération internationale du béton
Total Pages: 220
Release: 2006-01-01
ISBN 10: 9782883940758
ISBN 13: 2883940754
Language: EN, FR, DE, ES & NL

Retrofitting of Concrete Structures by Externally Bonded FRPs With Emphasis on Seismic Applications Book Review:

fib Bulletin 35 is the first bulletin to publish documentation from an fib short course. These courses are held worldwide and cover advanced knowledge of structural concrete in general, or specific topics. They are organized by fib and given by internationally recognized experts in fib, often supplemented with local experts active in fib. They are based on the knowledge and expertise from fib's ten Commissions and nearly fifty Task Groups. fib Bulletin 35 presents the course materials developed for the short course "Retrofitting of Concrete Structures through Externally Bonded FRP, with emphasis on Seismic Applications", given in Ankara and Istanbul in June 2005. The course drew on expertise both from outside Turkey and from the large pool of local experts on this subject. In most countries of the world, the building stock is ageing and needs continuous maintenance or repair. Moreover, the majority of existing constructions are deficient in the light of current knowledge and design codes. The problem of structural deficiency of existing constructions is especially acute in seismic regions, as, even there, seismic design of structures is relatively recent. The direct and indirect costs of demolition and reconstruction of structurally deficient constructions are often prohibitive; furthermore they entail a substantial waste of natural resources and energy. Therefore, structural retrofitting is becoming increasingly widespread throughout the world. Externally bonded Fibre Reinforced Polymers (FRPs) are rapidly becoming the technique of choice for structural retrofitting. They are cleaner and easier to apply than conventional retrofitting techniques, reduce disruption to the occupancy and operation of the facility, do not generate debris or waste, and reduce health and accident hazards at the construction site as well as noise and air pollution in the surroundings. fib Bulletin 35 gives state-of-the-art coverage of retrofitting through FRPs and presents relevant provisions from three recent standardisation milestones: EN 1998-3:2005 "Eurocode 8: Design of structures for earthquake resistance - Part 3: Assessment and retrofitting of buildings", the 2005 Draft of the Turkish seismic design code, and the Italian regulatory document CNR-DT 200/04, "Instructions for Design, Execution and Control of Strengthening Interventions by Means of Fibre-Reinforced Composites" (2004).

Bonded Repair and Retrofit of Concrete Structures Using FRP Composites

Bonded Repair and Retrofit of Concrete Structures Using FRP Composites
Author: Amir Mirmiran
Publsiher: Transportation Research Board
Total Pages: 135
Release: 2004-01-01
ISBN 10: 0309087856
ISBN 13: 9780309087858
Language: EN, FR, DE, ES & NL

Bonded Repair and Retrofit of Concrete Structures Using FRP Composites Book Review:

FRP

FRP
Author: J. G. Teng,J. F. Chen,S. T. Smith,L. Lam
Publsiher: Wiley
Total Pages: 266
Release: 2001-12-21
ISBN 10: 9780471487067
ISBN 13: 0471487066
Language: EN, FR, DE, ES & NL

FRP Book Review:

The strengthening of reinforced concrete (RC) structures using advanced fibre-reinforced polymer (FRP) composites, and in particular the behaviour of FRP-strengthened RC structures is a topic which has become very popular in recent years. This popularity has arisen due to the need to maintain and upgrade essential infrastructure in all parts of the world, combined with the well-known advantages of FRP composites, such as good corrosion resistance and ease for site handling due to their light weight. The continuous reduction in the material cost of FRP composites has also contributed to their popularity. While a great amount of research now exists in the published literature on this topic, it is scattered in various journals and conference proceedings. This book therefore provides the first ever comprehensive, state-of-the-art summary of the existing research on FRP strengthening of RC structures, with the emphasis being on structural behaviour and strength models. The main topics covered include: * Bond behaviour * Flexural and shear strengthening of beams * Column strengthening * Flexural strengthening of slabs. For each area, the methods of strengthening are discussed, followed by a description of behaviour and failure modes and then the presentation of rational design recommendations, for direct use in practical design of FRP strengthening measures. Researchers, practicing engineers, code writers and postgraduate students in structural engineering and construction materials, as well as consulting firms, government departments, professional bodies, contracting firms and FRP material suppliers will find this an invaluable resource.

Strengthening of Concrete Structures Using Fiber Reinforced Polymers FRP

Strengthening of Concrete Structures Using Fiber Reinforced Polymers  FRP
Author: Hwai-Chung Wu,Christopher D Eamon
Publsiher: Woodhead Publishing
Total Pages: 340
Release: 2017-02-21
ISBN 10: 0081006411
ISBN 13: 9780081006412
Language: EN, FR, DE, ES & NL

Strengthening of Concrete Structures Using Fiber Reinforced Polymers FRP Book Review:

Strengthening of Concrete Structures Using Fiber Reinforced Polymers (FRP): Design, Construction and Practical Applications presents a best practice guide on the structural design and strengthening of bridge structures using advanced Fiber Reinforced Polymer (FRP) composites. The book briefly covers the basic concepts of FRP materials and composite mechanics, while focusing on practical design and construction issues, including inspection and quality control, paying special attention to the differences in various design codes (US, Japan, and Europe) and recommendations. At present, several design guides from the US, Japan, and Europe are available. These guidelines are often inconsistent and do not cover all necessary design and inspection issues to the same degree of detail. This book provides a critical review and comparison of these guidelines, and then puts forward best practice recommendations, filling a significant gap in the literature, and serving as an important resource for engineers, architects, academics, and students interested in FRP materials and their structural applications. Written from a practitioner's point-of-view, it is a valuable design book for structural engineers all over the world. Includes a large quantity of design examples and structural software to facilitate learning and help readers perform routine design Provides recommendations for best practices in design and construction for the strengthening of bridge structures using advanced fiber-reinforced polymer (FRP) composites Presents comprehensive guidelines on design, inspection, and quality control, including laboratory and field testing information

Quality Assurance of Reinforced Concrete Structures Strengthened by Externally Bonded CFRP Strips

Quality Assurance of Reinforced Concrete Structures Strengthened by Externally Bonded CFRP Strips
Author: Markus Huber
Publsiher: diplom.de
Total Pages: 125
Release: 2010-01-17
ISBN 10: 3836641186
ISBN 13: 9783836641180
Language: EN, FR, DE, ES & NL

Quality Assurance of Reinforced Concrete Structures Strengthened by Externally Bonded CFRP Strips Book Review:

Inhaltsangabe:Zusammenfassung: Im Dezember 2002 wurde die erste österreichische Richtlinie bezüglich Stahlbetonverstärkungen mit aufgeklebten CFK-Lamellen veröffentlicht. Das vorrangige Ziel der vorliegenden Diplomarbeit ist, die Durchführbarkeit der neuen Richtlinie - mit speziellem Augenmerk auf Qualitätssicherung - anhand Europas größter CFK-Baustelle (die Wiener Marxerbrücke) zu überprüfen. Die Diplomarbeit enthält eine Übersicht über Eigenschaften und Anforderungen an CFK, deren gängigste Anwendungen als Verstärkung und eine Beschreibung des Hauptbezugsobjekts Marxerbrücke. Die Methoden der Qualitätssicherung nach der neuen Richtlinie werden erklärt und Resultate aus der Qualitätssicherung auf der Marxerbrücke inklusive einer Analyse von Fehlstellen und Sanierungsmethoden werden präsentiert. Anschließend werden die Resultate aus der Qualitätssicherung auf der Marxerbrücke mit denen von vier anderen CFK-verstärkten Bezugsobjekten verglichen. Abschließend werden Veränderungen bezüglich der Methoden der Qualitätssicherung vorgeschlagen und Empfehlungen für eine zukünftige Ausgabe der österreichischen Richtlinie werden geäußert. Inhaltsverzeichnis:Table of Contents: AbstractI Deutsche KurzfassungII AcknowledgementsIII Table of contents4 1.Content and aims of the thesis7 2.Strengthening with fibre reinforced polymers8 Fibre Reinforced Polymers9 Types of fibres9 2.1.1CFRP products and their properties10 Comparison of strengthening with carbon fibre reinforced polymers and externally bonded steel12 Differences in behaviour under tension12 Advantages of carbon fibre reinforced polymers12 2.1.2Disadvantages of carbon fibre reinforced polymers14 Guidelines and reference works in Austria concerning CFRP and design of strengthening elements14 2.1.3Verifications of the strengthening system according to the Austrian guidelines15 2.1.4Design bending moment capacity17 Preliminary measures and application of CFRP19 Examination of the state of the concrete member before surface preparation19 2.1.5Surface preparation and repair of the concrete member20 2.1.6Application of CFRP Reinforcement21 Basic techniques of strengthening with CFRP21 2.1.7Selected special techniques of strengthening with CFRP24 3.main reference object: Marxerbridge26 General description of the widening of the Marxerbridge26 Geographical position26 Arrangement of the structure of the Marxerbridge27 Division and numeration of the structure27 3.1.1Technical data [...]

Strengthening and Rehabilitation of Civil Infrastructures Using Fibre Reinforced Polymer FRP Composites

Strengthening and Rehabilitation of Civil Infrastructures Using Fibre Reinforced Polymer  FRP  Composites
Author: L C Hollaway,J G Teng
Publsiher: Elsevier
Total Pages: 416
Release: 2008-07-18
ISBN 10: 1845694899
ISBN 13: 9781845694890
Language: EN, FR, DE, ES & NL

Strengthening and Rehabilitation of Civil Infrastructures Using Fibre Reinforced Polymer FRP Composites Book Review:

The repair of deteriorated, damaged and substandard civil infrastructures has become one of the most important issues for the civil engineer worldwide. This important book discusses the use of externally-bonded fibre-reinforced polymer (FRP) composites to strengthen, rehabilitate and retrofit civil engineering structures, covering such aspects as material behaviour, structural design and quality assurance. The first three chapters of the book review structurally-deficient civil engineering infrastructure, including concrete, metallic, masonry and timber structures. FRP composites used in rehabilitation and surface preparation of the component materials are also reviewed. The next four chapters deal with the design of FRP systems for the flexural and shear strengthening of reinforced concrete (RC) beams and the strengthening of RC columns. The following two chapters examine the strengthening of metallic and masonry structures with FRP composites. The last four chapters of the book are devoted to practical considerations in the flexural strengthening of beams with unstressed and prestressed FRP plates, durability of externally bonded FRP composite systems, quality assurance and control, maintenance, repair, and case studies. With its distinguished editors and international team of contributors, Strengthening and rehabilitation of civil infrastructures using fibre-reinforced polymer (FRP) composites is a valuable reference guide for engineers, scientists and technical personnel in civil and structural engineering working on the rehabilitation and strengthening of the civil infrastructure. Reviews the use of fibre-reinforced polymer (FRP) composites in structurally damaged and sub-standard civil engineering structures Examines the role and benefits of fibre-reinforced polymer (FRP) composites in different types of structures such as masonry and metallic strengthening Covers practical considerations including material behaviour, structural design and quality assurance

FRP Composites in Civil Engineering

FRP Composites in Civil Engineering
Author: Jin-Guang Teng
Publsiher: Taylor & Francis
Total Pages: 1798
Release: 2001-11-29
ISBN 10: 9780080439457
ISBN 13: 0080439454
Language: EN, FR, DE, ES & NL

FRP Composites in Civil Engineering Book Review:

This Proceedings contains the papers presented at the International Conference on FRP Composites in Civil Engineering, held in Hong Kong, China, on 12-15 December 2001. The papers, contributed from 24 countries, cover a wide spectrum of topics and demonstrate the recent advances in the application of FRP (Fibre-reinforced polymer) composites in civil engineering, while pointing to future directions of research in this exciting area.

Externally Bonded FRP Reinforcement for RC Structures

Externally Bonded FRP Reinforcement for RC Structures
Author: fib Fédération internationale du béton
Publsiher: fib Fédération internationale du béton
Total Pages: 138
Release: 2001-01-01
ISBN 10: 9782883940543
ISBN 13: 2883940541
Language: EN, FR, DE, ES & NL

Externally Bonded FRP Reinforcement for RC Structures Book Review:

In December 1996, the then CEB established a Task Group with the main objective to elaborate design guidelines for the use of FRP reinforcement in accordance with the design format of the CEB-FIP Model Code and Eurocode2. With the merger of CEB and FIP into fib in 1998, this Task Group became fib TG 9.3 FRP Reinforcement for concrete structures in Commission 9 Reinforcing and Prestressing Materials and Systems. The Task Group consists of about 60 members, representing most European universities, research institutes and industrial companies working in the field of advanced composite reinforcement for concrete structures, as well as corresponding members from Canada, Japan and USA. Meetings are held twice a year and on the research level its work is supported by the EU TMR (European Union Training and Mobility of Researchers) Network "ConFibreCrete”. The work of fib TG 9.3 is performed by five working parties (WP): Material Testing and Characterization (MT&C) Reinforced Concrete (RC) Prestressed Concrete (PC) Externally Bonded Reinforcement (EBR) Marketing and Applications (M&A) This technical report constitutes the work conducted as of to date by the EBR party. This bulletin gives detailed design guidelines on the use of FRP EBR, the practical execution and the quality control, based on the current expertise and state-of-the-art knowledge of the task group members. It is regarded as a progress report since it is not the aim of this report to cover all aspects of RC strengthening with composites. Instead, it focuses on those aspects that form the majority of the design problems. several of the topics presented are subject of ongoing research and development, and the details of some modelling approaches may be subject to future revisions. as knowledge in this field is advancing rapidly, the work of the EBR WP will continue. Inspite of this limit in scope, considerable effort has been made to present a bulletin that is today’s state-of-art in the area of strengthening of concrete structures by means of externally bonded FRP reinforcement.

Strengthening of Reinforced Concrete Structures

Strengthening of Reinforced Concrete Structures
Author: Len C. Hollaway,Mike B. Leeming
Publsiher: CRC Press
Total Pages: 352
Release: 1999-04-09
ISBN 10: 9780849317156
ISBN 13: 0849317150
Language: EN, FR, DE, ES & NL

Strengthening of Reinforced Concrete Structures Book Review:

The in situ rehabilitation or upgrading of reinforced concrete members using bonded steel plates is an effective, convenient, and economic method of improving structural performance. However, disadvantages inherent in the use of steel have stimulated research into using fiber reinforced polymer (FRP) material in its place, with the goal of providing a non-corrosive, more versatile strengthening system. Strengthening of Reinforced Concrete Structures presents a detailed study of the flexural strengthening of reinforced and prestressed concrete members using FRP composite plates. This book covers short and long term performance through model and full-scale experimental testing plus theoretical and numerical considerations. It discusses previous investigative and site work undertaken to strengthen concrete beams using steel bonded pates and the pros and cons of using the steel and composite plate materials. It also presents case histories of construction members upgraded or strengthened using carbon fibre/polymer matrix composite materials bonded to the structural unit. A consortium of academic and industrial researchers provided much of the data and contributed the chapters to this volume. The research and trial tests were undertaken as part of the United Kingdom's ROBUST project. Strengthening of Reinforced Concrete Structures serves to disseminate the large amount of information that resulted from these studies. As detailed in this book, their results will serve to help generate and formulate design specifications as engineers continue to apply these important techniques to an ever-widening range of applications.

Strengthening of Reinforced Concrete Structures with Externally Bonded Composite Material

Strengthening of Reinforced Concrete Structures with Externally Bonded Composite Material
Author: Fedja Arifović,Danmarks Tekniske Universitet. DTU Byg
Publsiher: Unknown
Total Pages: 135
Release: 2010
ISBN 10: 9788778773227
ISBN 13: 8778773229
Language: EN, FR, DE, ES & NL

Strengthening of Reinforced Concrete Structures with Externally Bonded Composite Material Book Review:

FRP Composites for Reinforced and Prestressed Concrete Structures

FRP Composites for Reinforced and Prestressed Concrete Structures
Author: Perumalsamy Balaguru,Antonio Nanni,James Giancaspro
Publsiher: CRC Press
Total Pages: 322
Release: 2008-11-05
ISBN 10: 0203926889
ISBN 13: 9780203926888
Language: EN, FR, DE, ES & NL

FRP Composites for Reinforced and Prestressed Concrete Structures Book Review:

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.

Bond Characteristics and Fatigue Behaviour of Steel Structures Strengthened with Ultra High Modulus CFRP Plates

Bond Characteristics and Fatigue Behaviour of Steel Structures Strengthened with Ultra High Modulus CFRP Plates
Author: Chao Wu
Publsiher: Unknown
Total Pages: 598
Release: 2012
ISBN 10: 1928374650XXX
ISBN 13: OCLC:1011508421
Language: EN, FR, DE, ES & NL

Bond Characteristics and Fatigue Behaviour of Steel Structures Strengthened with Ultra High Modulus CFRP Plates Book Review:

Originated in 1940s, fibre reinforced polymer (FRP) composites are generally characterized by combining high strength and high stiffness fibres with relatively weaker matrices. The extraordinary properties of FRP composites of lightweight, high strength-toweight ratio corrosion resistance, potentially high overall durability and tailorability enable them to be used in areas where the conventional materials might be restricted. Approximately forty years ago, the concept of using bonded FRP composites as a means to maintain aging metallic aircraft was instituted in Australia. And this technique was promoted by research pioneers like Dr. Alan Baker, Dr. Francis Rose, Dr. Rhys Jones and Dr. L.J. Hart-Smith, etc. However, the retrofitting applications of FRP composite in civil infrastructures were much delayed until late 1980s, when the use of FRP composites for retrofitting concrete structures was initiated in Swinzerland by Urs Meier and his colleagues at the Swiss Federal Laboratories for Material Testing and Research (EMPA). Nowadays, the use of FRP for retrofitting of concrete structures is becoming more widely accepted in practice. Since last decade, the experiences in USA, the UK, Japan and Switzerland have showed great potential for FRP to be used in the retrofitting of steel structures. One of the most promising applications is to restore or improve the fatigue performance of steel members by externally attached FRP composites. The carbon fibre reinforced polymer (CFRP) seems to perform better in fatigue strengthening with higher elastic modulus comparing to other FRP composites, like glass fibre reinforced polymer (GFRP) or aramid fibre reinforced polymer (AFRP). In the previous studies on the fatigue retrofitting of steel structures, the elastic moduli of adopted CFRP composites are generally lower than 300 GPa. In addition, most CFRP composites were thinner than the corresponding steel adherents, resulting in a relatively lower CFRP stiffness. Therefore, the further improvement in the fatigue performance of retrofitted steel structures relies on the increase of either the elastic modulus or the thickness of CFRP composite. Fortunately, with the development of the FRP manufacturing industry, the mechanical properties of CFRP composites have gained considerable improvement. Unidirectional CFRP sheet with a modulus of 640 GPa and pultruded CFRP plate with a modulus of 460 GPa are now commercially available. The researchers in Civil Engineering Department of Monash University in Melbourne have conducted extensive research on the retrofitting of steel members using the CFRP sheets with a modulus of 640 GPa. The high modulus CFRP sheet shows great potential in improving the fatigue performance of cracked steel members. Comparing to CFRP sheeting system, CFRP plate of 460 GPa has other benefits for fatigue retrofitting like larger thickness, more convenient installation and better quality control. However, there has been no report on its fatigue retrofitting applications in steel structures. In this thesis, the CFRP plate with a modulus of 460 GPa is named ultra high modulus (UHM) CFRP plate. The issues regarding fatigue strengthening of cracked steel members using this UHM CFRP plates are investigated, including (1) the bond behaviour between this UHM CFRP plate and steel under static loading and fatigue loading conditions; (2) fatigue behaviour of non-welded cracked steel plates with UHM CFRP plate strengthening and (3) fatigue behaviour of welded cracked steel connections with UHM CFRP plate strengthening. Experimental, numerical and analytical approaches have been resorted.The first part of the thesis presents the static bond behaviour between this UHM CFRP plate and steel. A series of tests was conducted on the CFRP-steel double strap joints. Experimental results, including bond strength, effective bond length, failure modes, stress and strain distribution along the bond line were reported. Theoretical models were proposed for the prediction of bond strength and effective bond length of CFRP-steel double strap joint. Finite element models were built to simulate the tests. It was found that the failure mode of double strap joint was dependent on the adhesive properties. CFRP delamination and CFRP rupture were observed for specimens with Araldite 420 adhesive, whereas specimens with Sikadur 30 only experienced CFRP delamination. The effective bond lengths of Araldite and Sikadur specimens were 100~120mm and 70~100 mm respectively. The proposed theoretical and finite element models agreed well with the experimental results.The second step of the research is to understand the effect of fatigue loading on the bond between UHM CFRP plate and steel. Similar CFRP-steel double strap joints were prepared and tested under fatigue loading. These joints were tensioned to failure after enduring a pre-set number of fatigue cycles at various load ratios and then compared with those joints subjected to static tension alone. It was found that the same failure mode of CFRP delamination was observed from visual inspection for all specimens. Unexpectedly, limited effects of fatigue loading on the bond between CFRP and steel were identified. Microscopic investigation was conducted and the failure mechanism was explained by a "fatigue damage zone" concept.The third part of the PhD study is to investigate the effectiveness of the UHM CFRP plate on preventing fatigue crack propagation and extending the fatigue life of cracked steel plates. Steel plates with through thickness centre crack were repaired with UHM CFRP plates with various strengthening configurations. The effects of CFRP bond length, bond width, and bond locations were investigated. The experimental results showed that the fatigue crack propagation was largely delayed by the CFRP strengthening. The fatigue life was increased up to 7 times more than un-strengthened steel plates. Finally, it was recommended that it be better to attaché CFRP as close to the crack as possible, so that better strengthening effect can be achieved. Following the experimental study, fracture mechanics was introduced to analyse the stress intensity factor (SIF) of cracked steel plate considering the CFRP reinforcement. A simplified mode I SIF formula was proposed for CFRP strengthened steel plates, which provided a method for quick assessment of CFRP strengthening efficiencies.Finally, a series of fatigue tests were conducted on welded steel joints with CFRP strengthening. The experimental results were compared with those of non-welded CFRP strengthened steel plates. The effects of welding and stress concentration due to the weld attachment on CFRP strengthening effectiveness were investigated. It was found that the strengthening efficiency of UHM CFRP plate was largely decreased due to the welding and attachment. The experimental results suggested that it be better to attaché CFRP on the welding side as close to the crack as possible to achieve longer fatigue life. Based on the experimental, numerical and theoretical studies, recommendations were provided for the application of fatigue strengthening techniques using this UHM CFRP plate. Future research in the fatigue behaviour of composites reinforced steel structures was also identified.

FRP Composites

FRP Composites
Author: S. S. J. Moy
Publsiher: Thomas Telford
Total Pages: 64
Release: 2001
ISBN 10: 9780727730091
ISBN 13: 0727730096
Language: EN, FR, DE, ES & NL

FRP Composites Book Review:

- Introduction - Design specification - Design process overview - Design of composite - Structural design - Implementation - Tests - Verification - Monitoring - References Reviews Fibre reinforced polymer (FRP) composites have been used for many years in the aircraft and shipbuilding industries. They are now being used in a variety of construction applications where their light weight, high strength, stiffness, durability, and ease of installation makes them cost effective. This is particularly true in the repair and rehabilitation of existing infrastructure. This book provides design guidance on the use of fibre reinforced polymer composites, based on the results of two major programmes funded by the DETR. The book demonstrates that fibre reinforced polymer composites can be used with complete confidence in structural applications. Likewise, guidance is given on short-term and long-term behaviour and how this can be interpreted within a factual design situation. Also included are case studies of projects on the London Underground network, alongside contributions from industry research groups. FRP composites can offer a performance or cost benefit over traditional solutions. As there are no official standards for this type of work, this first attempt at producing design recommendations will be a vital resource for structural engineers. Quality Concrete, October 2001

3rd fib Congress Washington USA

3rd fib Congress Washington USA
Author: FIB – International Federation for Structural Concrete
Publsiher: FIB - Féd. Int. du Béton
Total Pages: 5718
Release: 2010-06-01
ISBN 10: 1617828211
ISBN 13: 9781617828218
Language: EN, FR, DE, ES & NL

3rd fib Congress Washington USA Book Review:

FRP Composites in Civil Engineering CICE 2004

FRP Composites in Civil Engineering   CICE 2004
Author: R. Seracino
Publsiher: CRC Press
Total Pages: 1004
Release: 2004-12-15
ISBN 10: 0203970853
ISBN 13: 9780203970850
Language: EN, FR, DE, ES & NL

FRP Composites in Civil Engineering CICE 2004 Book Review:

The range of fibre-reinforced polymer (FRP) applications in new construction, and in the retrofitting of existing civil engineering infrastructure, is continuing to grow worldwide. Furthermore, this progress is being matched by advancing research into all aspects of analysis and design. The Second International Conference on FRP Composites in

Developments in fiber reinforced polymer FRP composites for civil engineering

Developments in fiber reinforced polymer  FRP  composites for civil engineering
Author: M. Dawood
Publsiher: Elsevier Inc. Chapters
Total Pages: 558
Release: 2013-05-15
ISBN 10: 0128087781
ISBN 13: 9780128087787
Language: EN, FR, DE, ES & NL

Developments in fiber reinforced polymer FRP composites for civil engineering Book Review:

This chapter summarizes the recent advances in the use of fiber-reinforced polymer (FRP) materials for repair, rehabilitation, and strengthening of steel structures. Conventional methods of strengthening and repairing steel structures are presented. The advantages and limitations of using FRP materials are summarized. Topics presented include strengthening of flexural members, strengthening with prestressed FRP materials, stress-based and fracture mechanics-based approaches to evaluating bond behavior, repair of cracked steel members, and strengthening of slender members subjected to compression forces. The chapter concludes with a brief discussion of future trends in this field and a summary of other resources for further information.