Towards Understanding The Seismic Behaviour Of Gfrp Confined Concrete Columns

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Towards Understanding the Seismic Behaviour of GFRP Confined Concrete Columns

Author : Zahra Kharal
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (133 download)

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Book Synopsis Towards Understanding the Seismic Behaviour of GFRP Confined Concrete Columns by : Zahra Kharal

Download or read book Towards Understanding the Seismic Behaviour of GFRP Confined Concrete Columns written by Zahra Kharal and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conventional steel reinforced concrete (RC) structures are prone to corrosion, resulting in billions of dollars in damages globally annually. The use of glass-fibre reinforced polymer (GFRP) bars as internal reinforcement is a pre-emptive measure, which offers a feasible and cost-effective solution to building lasting sustainable infrastructure. Despite the many advantages of GFRP, design codes do not recommend its usage in columns primarily due to the lack of test data, especially under seismic loading. This study was undertaken to understand the seismic behaviour of concrete columns confined by GFRP transverse reinforcement. In the experimental program of this study, sixteen square columns with 305x305 mm cross-section and 1470 mm length were constructed and tested under simulated earthquake loading. Fourteen columns were reinforced with GFRP ties and steel longitudinal bars, while two columns contained GFRP ties and GFRP longitudinal bars. The results, in the form of shear vs. tip deflection and moment vs. curvature hysteresis, showed that GFRP ties can significantly enhance the seismic performance of RC columns. Test results also revealed that if appropriate confinement is provided, columns confined by GFRP ties have flexural strength, energy dissipation capacity, ductility and deformability level comparable to steel-RC columns and thus can be used effectively as primary lateral reinforcement. In the analytical phase of the study, an extensive database of FRP confined columns tested under concentric axial compression was compiled. The applicability of various existing confinement models towards the test data was investigated in detail. A new constitutive stress-strain relationship for FRP confined columns was proposed which captured the behaviour considerably better than the available models. A computation program was developed, utilizing the proposed confinement model, to conduct nonlinear analysis of GFRP confined columns subjected to simulated seismic loading. The program predicted the shear vs. tip deflection and moment vs. curvature envelope curves, and the ductility parameters with reasonable accuracy. Lastly, a critical evaluation of seismic design provisions for FRP confinement in CSA-S806 (2012) was carried out. The code provisions were found to be ambiguous and lacking in several aspects. Based on the available test results, modifications to the current code were suggested.

Seismic Behaviour of Reinforced Concrete Columns

Author : James Liu
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Seismic Behaviour of Reinforced Concrete Columns by : James Liu

Download or read book Seismic Behaviour of Reinforced Concrete Columns written by James Liu and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Concrete Composite Columns

Author : Chong Rong
Publisher : Elsevier
ISBN 13 : 0323853358
Total Pages : 435 pages
Book Rating : 4.3/5 (238 download)

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Book Synopsis Concrete Composite Columns by : Chong Rong

Download or read book Concrete Composite Columns written by Chong Rong and published by Elsevier. This book was released on 2022-11-25 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concrete Composite Columns: Behavior and Design focuses on confined concrete and establishes analytical methods for each composite column. The volume moves beyond existing resources to study the relationship between existing composite structures and design methods for the sectional form of a concrete composite structure. Chapters cover the failure criteria of concrete, confined concrete types, models, including axial stress prediction, analysis and design-oriented constitutive models, the design and analysis of section form, axial and seismic behaviors of concrete composite columns, the seismic design of concrete composite columns, and the engineering application. This book offers a practical solution to students, researchers, and engineers working with both steel and FRP-confined concrete composite columns. Focuses on confined concrete and provides analytical methods for composite columns Discusses different types of composite columns, including FRP and steel-concrete composites Considers the construction method and confining forces in composite concrete columns Details confined concrete from basic theoretical analysis to seismic behaviors and design methods Provides a solution to students, researchers, and engineers working with confined composite columns

Seismic Performance of FRP-confined RC Columns

Author : Guan Lin
Publisher :
ISBN 13 :
Total Pages : 426 pages
Book Rating : 4.:/5 (973 download)

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Book Synopsis Seismic Performance of FRP-confined RC Columns by : Guan Lin

Download or read book Seismic Performance of FRP-confined RC Columns written by Guan Lin and published by . This book was released on 2016 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Under the combined action of axial compression and bending, a column section is subjected to a strain gradient. The second objective of the research was to understand and model the effect of strain gradient on the stress-strain behavior of FRP-confined concrete. With the help of a reliable three-dimensional (3D) finite element (FE) model, the axial stress distribution in FRP-confined concrete column sections under a linear strain distribution was investigated, based on which design-oriented stress-strain models for FRP-confined concrete with due consideration of the strain gradient effect were developed for both circular and square columns. The final objective of the research was to develop reliable numerical models for FRP-confined RC columns subjected to the combined action of axial compression and cyclic lateral/seismic loading. These numerical column models are based on the stress-strain models for FRP-steel-confined concrete developed in the present study as well as loading/unloading rules developed by previous researchers. A hysteretic moment-rotation model was proposed to account for the effect of fixed-end rotations. In addition, an empirical plastic hinge length model was proposed to deal with the issue of deformation localization in FRP-confined square RC columns to achieve objective predictions. The proposed numerical column models provide accurate predictions of the performance of FRP-confined RC columns, especially for the ultimate displacement and energy dissipation capacity, which are very important parameters in seismic design.

FRP

Author : J. G. Teng
Publisher : John Wiley & Sons
ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis FRP by : J. G. Teng

Download or read book FRP written by J. G. Teng and published by John Wiley & Sons. This book was released on 2002 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fibre-reinforced polymer (FRP) composites are used to strengthen reinforced concrete (RC) structures. A large amount of research now exists on this. This book brings together all existing research into one volume.

Behaviour of GFRP Reinforced Concrete Columns Under Combined Axial Load and Flexure

Author : Arjang Tavassoli
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Behaviour of GFRP Reinforced Concrete Columns Under Combined Axial Load and Flexure by : Arjang Tavassoli

Download or read book Behaviour of GFRP Reinforced Concrete Columns Under Combined Axial Load and Flexure written by Arjang Tavassoli and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Performance of Confined Concrete Columns Under Simulated Life Cycles

Author : Steven D. Hart
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (664 download)

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Book Synopsis Performance of Confined Concrete Columns Under Simulated Life Cycles by : Steven D. Hart

Download or read book Performance of Confined Concrete Columns Under Simulated Life Cycles written by Steven D. Hart and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past 30 years, FRP composites (carbon, glass, or aramid fibers) have arisen as a method of retrofitting existing reinforced concrete structures to bring them up to current code standards of confinement and ductility. The development of stress-strain models for FRP confined concrete began with the adaptation of steel confinement models then progressed to models specifically developed based on test results from FRP confined specimens. State of the art stress-strain models for FRP confined concrete models may now be validated against a wide variety of published experimental results. Recent publications show researchers branching out and looking at other aspects of FRP confined concrete behavior, including the impact of sustained service loads on long term and ultimate behavior. An experimental program which examines the effects of sustained service loading on the ultimate axial performance of FRP confined concrete is presented. The program's purpose is to determine whether or not a material model developed without the presence of a sustained load accurately predicts the ultimate stress-strain response of FRP confined concrete previously subjected to a sustained service load. Equipment and procedures were developed to model the critical events in a building life cycle: construction, sustained service loading, minor critical events, rehabilitation, and ultimate performance. Varying the order of these events produces a simulated life cycle allowing analysis of the impact of strain history on ultimate performance. The results of the experimental program indicate that the presence of a sustained service load changes the expected failure mode from FRP rupture to FRP de-lamination and the stress-strain response of a specimen is approximately 10% below published models when sustained service loads are included in the life cycle. A comprehensive modeling process is proposed for modeling significant events in a structure's life cycle. Impacts on earthquake engineering and reliability studies are addressed and future research suggested. This research shows that life cycle modeling can improve the design and rehabilitation of structures so that they meet safety requirements in future seismic events.

Seismic Assessment and Retrofit of Reinforced Concrete Columns

Author : Konstantinos G. Megalooikonomou
Publisher : Cambridge Scholars Publishing
ISBN 13 : 1527530361
Total Pages : 387 pages
Book Rating : 4.5/5 (275 download)

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Book Synopsis Seismic Assessment and Retrofit of Reinforced Concrete Columns by : Konstantinos G. Megalooikonomou

Download or read book Seismic Assessment and Retrofit of Reinforced Concrete Columns written by Konstantinos G. Megalooikonomou and published by Cambridge Scholars Publishing. This book was released on 2019-02-27 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reinforced concrete columns play a very important role in structural performance. As such, it is essential to apply a suitable analytical tool to estimate their structural behaviour considering all failure mechanisms such as axial, shear, and flexural failures. This book highlights the development of a fiber beam-column element accounting for shear effects and the effect of tension stiffening through reinforcement-to-concrete bond, along with the employment of suitable constitutive material laws.

Reinforced Concrete Design with FRP Composites

Author : Hota V.S. GangaRao
Publisher : CRC Press
ISBN 13 : 1420020196
Total Pages : 400 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Reinforced Concrete Design with FRP Composites by : Hota V.S. GangaRao

Download or read book Reinforced Concrete Design with FRP Composites written by Hota V.S. GangaRao and published by CRC Press. This book was released on 2006-11-20 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the use of composites has increased in many industrial, commercial, medical, and defense applications, there is a lack of technical literature that examines composites in conjunction with concrete construction. Fulfilling the need for a comprehensive, explicit guide, Reinforced Concrete Design with FRP Composites presents specific informat

ACI 440. 2R-17 Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures

Author : ACI Committee 440
Publisher :
ISBN 13 : 9781945487590
Total Pages : 110 pages
Book Rating : 4.4/5 (875 download)

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Book Synopsis ACI 440. 2R-17 Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures by : ACI Committee 440

Download or read book ACI 440. 2R-17 Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures written by ACI Committee 440 and published by . This book was released on 2017-04-27 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Understanding the Confined Concrete Behavior on the Response of Hollow Bridge Columns

Author : Xiao Liang (M.S. in Structural Engineering)
Publisher :
ISBN 13 :
Total Pages : 340 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Understanding the Confined Concrete Behavior on the Response of Hollow Bridge Columns by : Xiao Liang (M.S. in Structural Engineering)

Download or read book Understanding the Confined Concrete Behavior on the Response of Hollow Bridge Columns written by Xiao Liang (M.S. in Structural Engineering) and published by . This book was released on 2015 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: In seismic design practice, hollow concrete columns offer an efficient alternative especially for tall bridge columns. The confinement in critical regions of these columns is not well understood and the confinement models developed for solid concrete sections are used to characterize these columns. This report identifies several shortcomings in current practice associated with hollow column design. Using experimental and analytical means, it is shown that the confined concrete behavior in hollow concrete columns is different from that established for solid sections. Recommendations to improve analysis and design of hollow columns are presented with experimental verification. Modification to alter the confinement models developed for solid sections and a design example are also provided.

Seismic Performance of Well-confined Concrete Bridge Columns

Author : Dawn Ellen Lehman
Publisher :
ISBN 13 :
Total Pages : 678 pages
Book Rating : 4.:/5 (34 download)

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Book Synopsis Seismic Performance of Well-confined Concrete Bridge Columns by : Dawn Ellen Lehman

Download or read book Seismic Performance of Well-confined Concrete Bridge Columns written by Dawn Ellen Lehman and published by . This book was released on 1998 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The International Handbook of FRP Composites in Civil Engineering

Author : Manoochehr Zoghi
Publisher : CRC Press
ISBN 13 : 0849320135
Total Pages : 708 pages
Book Rating : 4.8/5 (493 download)

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Book Synopsis The International Handbook of FRP Composites in Civil Engineering by : Manoochehr Zoghi

Download or read book The International Handbook of FRP Composites in Civil Engineering written by Manoochehr Zoghi and published by CRC Press. This book was released on 2013-09-26 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fiber-reinforced polymer (FRP) composites have become an integral part of the construction industry because of their versatility, enhanced durability and resistance to fatigue and corrosion, high strength-to-weight ratio, accelerated construction, and lower maintenance and life-cycle costs. Advanced FRP composite materials are also emerging for a wide range of civil infrastructure applications. These include everything from bridge decks, bridge strengthening and repairs, and seismic retrofit to marine waterfront structures and sustainable, energy-efficient housing. The International Handbook of FRP Composites in Civil Engineering brings together a wealth of information on advances in materials, techniques, practices, nondestructive testing, and structural health monitoring of FRP composites, specifically for civil infrastructure. With a focus on professional applications, the handbook supplies design guidelines and standards of practice from around the world. It also includes helpful design formulas, tables, and charts to provide immediate answers to common questions. Organized into seven parts, the handbook covers: FRP fundamentals, including history, codes and standards, manufacturing, materials, mechanics, and life-cycle costs Bridge deck applications and the critical topic of connection design for FRP structural members External reinforcement for rehabilitation, including the strengthening of reinforced concrete, masonry, wood, and metallic structures FRP composites for the reinforcement of concrete structures, including material characteristics, design procedures, and quality assurance–quality control (QA/QC) issues Hybrid FRP composite systems, with an emphasis on design, construction, QA/QC, and repair Quality control, quality assurance, and evaluation using nondestructive testing, and in-service monitoring using structural health monitoring of FRP composites, including smart composites that can actively sense and respond to the environment and internal states FRP-related books, journals, conference proceedings, organizations, and research sources Comprehensive yet concise, this is an invaluable reference for practicing engineers and construction professionals, as well as researchers and students. It offers ready-to-use information on how FRP composites can be more effectively utilized in new construction, repair and reconstruction, and architectural engineering.

Composites for Construction

Author : Lawrence C. Bank
Publisher : John Wiley & Sons
ISBN 13 : 0471681261
Total Pages : 572 pages
Book Rating : 4.4/5 (716 download)

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Book Synopsis Composites for Construction by : Lawrence C. Bank

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

Behaviour of Circular Concrete Columns Internally Reinforced with Steel and GFRP Under Simulated Earthquake Load

Author : Arsalan Tavassoli
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (133 download)

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Book Synopsis Behaviour of Circular Concrete Columns Internally Reinforced with Steel and GFRP Under Simulated Earthquake Load by : Arsalan Tavassoli

Download or read book Behaviour of Circular Concrete Columns Internally Reinforced with Steel and GFRP Under Simulated Earthquake Load written by Arsalan Tavassoli and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to address the issue of corrosion of steel in concrete structures, Glass Fiber Reinforced Polymer (GFRP) is slowly gaining acceptability as a replacement of steel. This thesis aims to evaluate the feasibility of using GFRP as internal lateral reinforcement in columns. A total of eight circular columns were tested under simulated earthquake forces which included constant axial load and cyclic lateral displacement excursions. In addition to the moment vs. curvature response and shear vs. deflection behaviour, a number of ductility parameters related to curvature, displacement, and energy dissipation are used to evaluate the performance of specimens. Test results demonstrated similar shear and moment capacities compared to the columns with confining steel reinforcement. Due to their linear elastic behaviour until rupture at a strain of approximate 0.02, GFRP spirals provided continuous confinement to the columns, which displayed acceptable deformability. The application of GFRP as lateral reinforcement in concrete columns avoids the corrosion concern and delivers a strong and ductile response.

Seismic Performance of High-strength Concrete Columns in FRP Stay-in-place Formwork

Author : Togay Ozbakkaloglu
Publisher :
ISBN 13 :
Total Pages : 658 pages
Book Rating : 4.:/5 (775 download)

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Book Synopsis Seismic Performance of High-strength Concrete Columns in FRP Stay-in-place Formwork by : Togay Ozbakkaloglu

Download or read book Seismic Performance of High-strength Concrete Columns in FRP Stay-in-place Formwork written by Togay Ozbakkaloglu and published by . This book was released on 2005 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:

ACMSM25

Author : Chien Ming Wang
Publisher : Springer Nature
ISBN 13 : 9811376034
Total Pages : 1104 pages
Book Rating : 4.8/5 (113 download)

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Book Synopsis ACMSM25 by : Chien Ming Wang

Download or read book ACMSM25 written by Chien Ming Wang and published by Springer Nature. This book was released on 2019-09-03 with total page 1104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents articles from The Australasian Conference on the Mechanics of Structures and Materials (ACMSM25 held in Brisbane, December 2018), celebrating the 50th anniversary of the conference. First held in Sydney in 1967, it is one of the longest running conferences of its kind, taking place every 2–3 years in Australia or New Zealand. Bringing together international experts and leaders to disseminate recent research findings in the fields of structural mechanics, civil engineering and materials, it offers a forum for participants from around the world to review, discuss and present the latest developments in the broad discipline of mechanics and materials in civil engineering.