Experimental Investigation of Bond-slip Relationship Between Fiber Reinforced Polymers (FRP) Bars and Concrete PDF Download

Author:
Publisher:
ISBN:
Category : Fiber-reinforced concrete
Languages : en
Pages : 58

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Author: Aniket Dilip Borwankar
Publisher:
ISBN:
Category :
Languages : en
Pages : 96

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Author: Snehal Kadam
Publisher:
ISBN: 9781109788372
Category :
Languages : en
Pages : 182

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The objective of this thesis is to quantify the bond & slip behavior of deformed fiber reinforced polymer rods made of carbon (CFRP) & glass (GFRP) with concrete using the data from a set of experiments conducted previously. These experiments involved a modified form of the standard pullout tests with the goal to minimize the confining action due to the surrounding concrete being in compression. This is shown by performing a finite element simulation of the experimental setup. Then a numerical study is performed to compare the experimental results with some of the bond parameter given in ACI 440.3R-04. This is followed by analytical modeling of bond slip law of GFRP which involves rigorous computational analysis and finding the unknown parameters of the adopted m-BEP model so as to predict the applied pullout force and its consequent loaded end slip to compare with the experimental data.

Author: fib Fédération internationale du béton
Publisher: fib Fédération internationale du béton
ISBN: 9782883940543
Category : Technology & Engineering
Languages : en
Pages : 178

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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.

Author: Antonio Nanni
Publisher: CRC Press
ISBN: 0203874293
Category : Technology & Engineering
Languages : en
Pages : 406

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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

Author: fib Fédération internationale du béton
Publisher: fib Fédération internationale du béton
ISBN: 9782883940505
Category : Technology & Engineering
Languages : en
Pages : 448

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"In 1993, the CEB Commission 2 Material and Behavior Modelling established the Task Group 2.5 Bond Models. It's terms of reference were ... to write a state-of-art report concerning bond of reinforcement in concrete and later recommend how the knowledge could be applied in practice (Model Code like text proposal)... {This work} covers the first part ... the state-of-art report."--Pref.

Author: Edward Ghali
Publisher: John Wiley & Sons
ISBN: 0470024038
Category : Science
Languages : en
Pages : 574

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Corrosion Prevention and Protection: Practical Solutions presents a functional approach to the various forms of corrosion, such as uniform corrosion, pitting corrosion, crevice corrosion, galvanic corrosion, stress corrosion, hydrogen-induced damage, sulphide stress cracking, erosion-corrosion, and corrosion fatigue in various industrial environments. The book is split into two parts. The first, consisting of five chapters: Introduction and Principles (Fundamentals) of Corrosion Corrosion Testing, Detection, Monitoring and Failure Analysis Regulations, Specifications and Safety Materials: Metals, Alloys, Steels and Plastics Corrosion Economics and Corrosion Management The second part of the book consists of two chapters which present: a discussion of corrosion reactions, media, active and active-passive corrosion behaviour and the various forms of corrosion, a collection of case histories and practical solutions which span a wide range of industrial problems in a variety of frequently encountered environments, including statues & monuments, corrosion problems in metallurgical and mineral processing plants, boilers, heat exchangers and cooling towers, aluminum and copper alloys, galvanized steel structures as well as hydrogeological environmental corrosion This text is relevant to researchers and practitioners, engineers and chemists, working in corrosion in industry, government laboratories and academia. It is also suitable as a course text for engineering students as well as libraries related to chemical and chemical engineering institutes and research departments.

Author: Emmanuella Atunbi
Publisher:
ISBN:
Category : Carbon fiber-reinforced plastics
Languages : en
Pages : 195

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Fiber reinforced polymers (FRP) have become widely used in retrofitting existing reinforced concrete (RC) structures because of their high strength and stiffness-to-weight ratio. An important aspect in the design of this composite element is determining the bond behaviour of the FRP sheet-to-concrete interface. Previous studies have involved the use of conventional instrumentation (typically strain gauges) that provide limited data to work with. This study presents an experimental investigation to determine the effect of bond length and stress on the bond behaviour of FRP-to-concrete interface under static loads using a digital image correlation (DIC) technique. Twelve double lap shear specimens bonded with carbon fiber reinforced polymer (CFRP) sheets were tested with varying bond lengths. Development length, longitudinal strains and bond stress and slip relationships were obtained and compared with values computed from existing models. Comprehensive results were obtained from the DIC technique which allowed for proper monitoring of the progression of failure and the effect of shear lag on the distribution of stresses in the FRP sheet.

Author: ACI Committee 440
Publisher:
ISBN: 9780870311185
Category : Fiber-reinforced concrete
Languages : en
Pages : 42

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Author: Marta Baena
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659155604
Category :
Languages : en
Pages : 340

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Book Description
The differences in mechanical and bond properties of Fiber Reinforced Polymers (FRP) bars when compared to those of traditional steel reinforcement for reinforced concrete (RC) structures may affect the cracking and deformability behaviour of FRP RC members. This study investigates the bond behaviour between FRP reinforcement and concrete through experimental and numerical analysis. Experimental results on pull-out tests and direct tension tests are presented and discussed. A general procedure, derived from a cracking analysis based on slip and bond stresses, is used to study the deformability of FRP RC elements under tension. The tension stiffening effect is included via experimental nonlinear bond-slip law obtained from a laboratory pull-out test. The comparison between experimental data and numerical predictions of the reinforcement strain profile along the reinforcing bar during a tensile test confirms that the bond-based model adequately reproduces the redistribution of stresses after crack formation. Because the numerical model is flexible enough to include any "user-defined" bond-slip law and variable materials' properties, a parametric study is conducted.