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Structures Strengthened With Bonded Composites

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Structures Strengthened with Bonded Composites

Structures Strengthened with Bonded Composites Book
Author : Zhishen Wu,Yufei Wu,Mohamed F.M. Fahmy
Publisher : Woodhead Publishing
Release : 2020-07-15
ISBN : 0128210893
Language : En, Es, Fr & De

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Book Description :

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 Book
Author : L C Hollaway,M Leeming
Publisher : Elsevier
Release : 1999-03-05
ISBN : 1855737612
Language : En, Es, Fr & De

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Book Description :

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 Book
Author : L C Hollaway
Publisher : Elsevier
Release : 2004-04-22
ISBN : 1845690648
Language : En, Es, Fr & De

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Book Description :

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

Strengthening of Reinforced Concrete Structures with Externally Bonded Composite Material

Strengthening of Reinforced Concrete Structures with Externally Bonded Composite Material Book
Author : Fedja Arifović,Danmarks Tekniske Universitet. DTU Byg
Publisher : Unknown
Release : 2010
ISBN : 9788778773227
Language : En, Es, Fr & De

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Book Description :

Download Strengthening of Reinforced Concrete Structures with Externally Bonded Composite Material book written by Fedja Arifović,Danmarks Tekniske Universitet. DTU Byg, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

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 Book
Author : Carlo Pellegrino,José Sena-Cruz
Publisher : Springer
Release : 2015-08-25
ISBN : 940177336X
Language : En, Es, Fr & De

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Book Description :

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.

Externally Bonded FRP Reinforcement for RC Structures

Externally Bonded FRP Reinforcement for RC Structures Book
Author : fib Fédération internationale du béton
Publisher : fib Fédération internationale du béton
Release : 2001-01-01
ISBN : 9782883940543
Language : En, Es, Fr & De

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Book Description :

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.

Report

Report Book
Author : Fedja Arifović
Publisher : Unknown
Release : 2010
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Report book written by Fedja Arifović, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Fourth International Symposium on Fiber Reinforced Polymer Reinforcement for Reinforced Concrete Structures

Fourth International Symposium on Fiber Reinforced Polymer Reinforcement for Reinforced Concrete Structures Book
Author : Charles William Dolan,S. H. Rizkalla,Antonio Nanni
Publisher : Unknown
Release : 1999
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Fourth International Symposium on Fiber Reinforced Polymer Reinforcement for Reinforced Concrete Structures book written by Charles William Dolan,S. H. Rizkalla,Antonio Nanni, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

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

Strengthening and Rehabilitation of Civil Infrastructures Using Fibre Reinforced Polymer  FRP  Composites Book
Author : L C Hollaway,J G Teng
Publisher : Elsevier
Release : 2008-07-18
ISBN : 1845694899
Language : En, Es, Fr & De

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Book Description :

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

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 Book
Author : Chao Wu
Publisher : Unknown
Release : 2012
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

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

Developments in fiber reinforced polymer FRP composites for civil engineering

Developments in fiber reinforced polymer  FRP  composites for civil engineering Book
Author : M. Dawood
Publisher : Elsevier Inc. Chapters
Release : 2013-05-15
ISBN : 0128087781
Language : En, Es, Fr & De

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Book Description :

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.

Repairing Structures Using Composite Wraps

Repairing Structures Using Composite Wraps Book
Author : Claude Bathias
Publisher : Kogan Page Science
Release : 2003
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

This book presents the Proceedings of the 8th Japanese-European Symposium on Composite Materials, held in Tokyo, Japan, in April 2002. It comprises 30 papers organized in three sections: 1. Repairing structures using composite wraps; 2. Development and use of smart techniques for strain measurement or damage monitoring; and 3. Better understanding of process.

Innovation in Composite Materials and Structures

Innovation in Composite Materials and Structures Book
Author : Michael B. Leeming,B. H. V. Topping
Publisher : Civil Comp Press
Release : 1997
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Includes papers that were presented at The Mouchel Centenary Conference on Innovation in Civil and Structural Engineering, which was held from 19-21 August 1997, at Cambridge, England.

FRP Composites for Reinforced and Prestressed Concrete Structures

FRP Composites for Reinforced and Prestressed Concrete Structures Book
Author : Perumalsamy Balaguru,Antonio Nanni,James Giancaspro
Publisher : CRC Press
Release : 2014-04-21
ISBN : 1482288532
Language : En, Es, Fr & De

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Book Description :

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.

Non metallic FRP Reinforcement for Concrete Structures

Non metallic  FRP  Reinforcement for Concrete Structures Book
Author : Anonim
Publisher : Unknown
Release : 1997
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Non metallic FRP Reinforcement for Concrete Structures book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Steel Composite Structures

Steel   Composite Structures Book
Author : Anonim
Publisher : Unknown
Release : 2008
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

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ACI Structural Journal

ACI Structural Journal Book
Author : Anonim
Publisher : Unknown
Release : 2009
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

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Stress Concentration in Beams Bonded with FRP Composites

Stress Concentration in Beams Bonded with FRP Composites Book
Author : Khalil Belakhdar
Publisher : Unknown
Release : 2017
ISBN : 9783330867772
Language : En, Es, Fr & De

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Book Description :

Download Stress Concentration in Beams Bonded with FRP Composites book written by Khalil Belakhdar, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

International Journal of Materials Product Technology

International Journal of Materials   Product Technology Book
Author : Anonim
Publisher : Unknown
Release : 2003
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download International Journal of Materials Product Technology book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Advanced fibre reinforced polymer FRP composites for structural applications

Advanced fibre reinforced polymer  FRP  composites for structural applications Book
Author : L.C. Hollaway
Publisher : Elsevier Inc. Chapters
Release : 2013-09-30
ISBN : 012808846X
Language : En, Es, Fr & De

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Book Description :

Chapters 16 and discuss the development of the advanced polymer composite material applications in bridge engineering. They demonstrate the innovative types of components and structures which have been developed from FRP composite materials and the most advantageous way to employ composites in bridge engineering. Given the importance of bridge infrastructure, the discussion of this topic has been split over two chapters. This chapter focuses on the type of FRP composite materials used in bridge engineering, their in-service properties and their applications in bridge enclosures and the rehabilitation of reinforced and prestressed concrete bridge beams and columns. covers rehabilitation of metallic bridge structures, all FRP composite bridges and bridges built with hybrid systems.