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Concrete Beams Prestressed Using Carbon Fiber Reinforced Polymer


Concrete Beams Prestressed Using Carbon Fiber Reinforced Polymer
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Concrete Beams Prestressed Using Carbon Fiber Reinforced Polymer


Concrete Beams Prestressed Using Carbon Fiber Reinforced Polymer
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Author : H. Celik Ozyildirim
language : en
Publisher:
Release Date : 2019

Concrete Beams Prestressed Using Carbon Fiber Reinforced Polymer written by H. Celik Ozyildirim and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Carbon fiber-reinforced plastics categories.


Corrosion of reinforcement in reinforced concrete leads to damage in both the concrete and the reinforcement that requires costly repairs and inconvenience to the traveling public. When concrete is reinforced with steel prestressing strands that are under sustained tensile stress, corrosion is more critical than in non-prestressed concrete with non-prestressed steel reinforcement. Corrosion-free carbon fiber reinforced polymer reinforcement may be used instead of prestressing steel and reinforcing bars to mitigate the corrosion problem in prestressed concrete elements such as beams. The Virginia Department of Transportation (VDOT) placed beams with carbon fiber reinforced polymer reinforcement in a two-span bridge in Halifax County, Virginia. The bridge has two 84-ft spans, continuous for live load, and each span has four 45-in-deep prestressed bulb-T beams. The first two beams were cast using a traditional concrete mixture with conventional slump. The remaining six beams were cast with self-consolidating concrete to facilitate the placement operation. The deck was cast with conventional concrete and corrosion-resistant reinforcing bars. Concrete for both the beams and the deck was tested at the fresh and hardened states. The structure was inspected visually immediately after construction and 8 months and 3.5 years later. The beams were performing well with no deficiencies. The deck was also performing well except that the continuity diaphragm over the pier had several longitudinal cracks. The continuity diaphragm concrete was placed, in accordance with normal VDOT practice, after the deck concrete had been placed on both sides of the pier. Cracks at the deck level in the continuity diaphragms are generally attributed to restrained shrinkage when the diaphragm concrete is placed after the deck concrete. The study recommends that VDOT’s Structure and Bridge Division use beams with self-consolidating concrete and carbon fiber reinforced polymer reinforcement as an option in severe environments since the fabrication and constructability challenges described herein were successfully overcome.



Analysis Of Concrete Beams Prestressed And Post Tensioned With Carbon Fiber Reinforced Polymer Cfrp Bars


Analysis Of Concrete Beams Prestressed And Post Tensioned With Carbon Fiber Reinforced Polymer Cfrp Bars
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Author : Mohamad Fathy Abd El Aziz
language : en
Publisher:
Release Date : 2002

Analysis Of Concrete Beams Prestressed And Post Tensioned With Carbon Fiber Reinforced Polymer Cfrp Bars written by Mohamad Fathy Abd El Aziz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.




Performance Of Carbon Fiber Reinforced Polymer Cfrp Tendons And Their Use For Strengthening Of Prestressed Concrete Beams


Performance Of Carbon Fiber Reinforced Polymer Cfrp Tendons And Their Use For Strengthening Of Prestressed Concrete Beams
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Author : Carl Van Jerrett
language : en
Publisher:
Release Date : 1996

Performance Of Carbon Fiber Reinforced Polymer Cfrp Tendons And Their Use For Strengthening Of Prestressed Concrete Beams written by Carl Van Jerrett and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.




Shear Strengthening Of Prestressed Concrete I Beams Using Carbon Fiber Reinforced Polymers


Shear Strengthening Of Prestressed Concrete I Beams Using Carbon Fiber Reinforced Polymers
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Author : Moustapha Ibrahim Ary
language : en
Publisher:
Release Date : 2011

Shear Strengthening Of Prestressed Concrete I Beams Using Carbon Fiber Reinforced Polymers written by Moustapha Ibrahim Ary and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Prestressed concrete beams categories.




Non Linear Analysis Of Concrete Beams Prestressed And Post Tensioned With Carbon Fiber Reinforced Polymer Cfrp Bars


Non Linear Analysis Of Concrete Beams Prestressed And Post Tensioned With Carbon Fiber Reinforced Polymer Cfrp Bars
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Author : Mohamad Fathy Abd El Aziz
language : en
Publisher:
Release Date : 2006

Non Linear Analysis Of Concrete Beams Prestressed And Post Tensioned With Carbon Fiber Reinforced Polymer Cfrp Bars written by Mohamad Fathy Abd El Aziz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.




Shear Strengthening Of Reinforced And Prestressed Concrete Beams Using Carbon Fiber Reinforced Polymer Cfrp Sheets And Anchors


Shear Strengthening Of Reinforced And Prestressed Concrete Beams Using Carbon Fiber Reinforced Polymer Cfrp Sheets And Anchors
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Author : Yungon Kim
language : en
Publisher:
Release Date : 2012

Shear Strengthening Of Reinforced And Prestressed Concrete Beams Using Carbon Fiber Reinforced Polymer Cfrp Sheets And Anchors written by Yungon Kim and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Carbon fiber-reinforced plastics categories.


The ability to quickly apply carbon fiber reinforced polymer (CFRP) materials with a minimum of disruption to the use of a structure and with virtually no change in the geometry or weight of the element makes CFRP a viable and attractive material for strengthening existing elements. However, without adequate anchorage of CFRP sheets to the concrete surface, premature failures by debonding of the CFRP from the concrete significantly limit the capacity of CFRP strengthening systems. The objective of the study was to demonstrate the feasibility of using anchored CFRP for shear strengthening of large bridge girders or supporting elements. An extensive experimental program was undertaken on several full-scale T-beams and I girders to achieve project objectives. CFRP anchors used in the study performed well and were able to develop the full capacity of CFRP sheets thereby precluding debonding failures. Studied anchored CFRP systems were thus able to generate significant shear strength gains of up to 50 percent of the unstrengthened beam capacity. Experimental results, installation procedures for CFRP sheets and anchors, specifications for fabrication and installation of CFRP anchors, and anchored CFRP shear design guidelines are presented.



Guide Specifications For The Design Of Concrete Bridge Beams Prestressed With Carbon Fiber Reinforced Polymer Cfrp Systems


Guide Specifications For The Design Of Concrete Bridge Beams Prestressed With Carbon Fiber Reinforced Polymer Cfrp Systems
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Author :
language : en
Publisher:
Release Date : 2018

Guide Specifications For The Design Of Concrete Bridge Beams Prestressed With Carbon Fiber Reinforced Polymer Cfrp Systems written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with Concrete bridges categories.


These guide specifications apply to the design of prestressed concrete beams constructed of normal weight concrete and prestressed by carbon fiber-reinforced polymer (CFRP) prestressing systems. Unless otherwise specifically noted, these guide specifications are applicable to: concrete components made of concrete with compressive strengths used for design from 5.0 to15.0 ksi, inclusive; pretensioned concrete beams; bonded and unbonded internally post-tensioned concrete beams; and shear design of prestressed concrete bridge beams with only transverse steel reinforcement.--pg. 1-1



Test Of Prestressed Concrete T Beams Retrofitted For Shear And Flexure Using Carbon Fiber Reinforced Polymers


Test Of Prestressed Concrete T Beams Retrofitted For Shear And Flexure Using Carbon Fiber Reinforced Polymers
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Author : Alison Agapay
language : en
Publisher:
Release Date : 2004

Test Of Prestressed Concrete T Beams Retrofitted For Shear And Flexure Using Carbon Fiber Reinforced Polymers written by Alison Agapay and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Carbon fiber-reinforced plastics categories.




Frp Composites For Reinforced And Prestressed Concrete Structures


Frp Composites For Reinforced And Prestressed Concrete Structures
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Author : Perumalsamy Balaguru
language : en
Publisher: CRC Press
Release Date : 2008-11-05

Frp Composites For Reinforced And Prestressed Concrete Structures written by Perumalsamy Balaguru and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-11-05 with Technology & Engineering categories.


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.



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
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Author : Carlo Pellegrino
language : en
Publisher: Springer
Release Date : 2015-08-25

Design Procedures For The Use Of Composites In Strengthening Of Reinforced Concrete Structures written by Carlo Pellegrino and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-08-25 with Technology & Engineering categories.


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.