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Carbon Fiber Jacket Repair And Retrofit Of Reinforced Concrete Circular Bridge Columns
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Book Synopsis Carbon Fiber Jacket Repair and Retrofit of Reinforced Concrete Circular Bridge Columns by : Derek P. Gallagher
Download or read book Carbon Fiber Jacket Repair and Retrofit of Reinforced Concrete Circular Bridge Columns written by Derek P. Gallagher and published by . This book was released on 1998 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Carbon Fiber Jacket Retrofit Test of Circular Shear Bridge Column, CRC-2 by : Frieder Seible
Download or read book Carbon Fiber Jacket Retrofit Test of Circular Shear Bridge Column, CRC-2 written by Frieder Seible and published by . This book was released on 1994 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Use of Carbon Fiber Reinforced Polymer Sheets as Transverse Reinforcement in Bridge Columns by : Gamal Elnabelsya
Download or read book Use of Carbon Fiber Reinforced Polymer Sheets as Transverse Reinforcement in Bridge Columns written by Gamal Elnabelsya and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Performance of bridges during previous earthquakes has demonstrated that many structural failures could be attributed to seismic deficiencies in bridge columns. Lack of transverse reinforcement and inadequate splicing of longitudinal reinforcement in potential plastic hinge regions of columns constitute primary reasons for their poor performance. A number of column retrofit techniques have been developed and tested in the past. These techniques include steel jacketing, reinforced concrete jacketing and use of transverse prestressing (RetroBelt) for concrete confinement, shear strengthening and splice clamping. A new retrofit technique, involving fibre reinforced polymer (FRP) jacketing has emerged as a convenient and structurally sound alternative with improved durability. The new technique, although received acceptance in the construction industry, needs to be fully developed as a viable seismic retrofit methodology, supported by reliable design and construction procedures. The successful application of externally applied FRP jackets to existing columns, coupled with deteriorating bridge infrastructure, raised the possibility of using FRP reinforcement for new construction. Stay-in-place formwork, in the form of FRP tubes are being researched for its feasibility. The FRP stay-in-place tubes offer ease in construction, convenient formwork, and when left in place, the protection of concrete against environmental effects, including the protection of steel reinforcement against corrosion, while also serving as column transverse reinforcement. Combined experimental and analytical research was conducted in the current project to i) improve the performance of FRP column jacketing for existing bridge columns, and ii) to develop FRP stay-in-place formwork for new bridge columns. The experimental phase consisted of design, construction and testing of 7 full-scale reinforced concrete bridge columns under simulated seismic loading. The columns represented both existing seismically deficient bridge columns, and new columns in stay-in-place formwork. The existing columns were deficient in either shear, or flexure, where the flexural deficiencies stemmed from lack of concrete confinement and/or use of inadequately spliced longitudinal reinforcement. The test parameters included cross-sectional shape (circular or square), reinforcement splicing, column shear span for flexure and shear-dominant behaviour, FRP jacket thickness, as well as use of FRP tubes as stay-in-place formwork, with or without internally embedded FRP crossties. The columns were subjected to a constant axial compression and incrementally increasing inelastic deformation reversals. The results, presented and discussed in this thesis, indicate that the FRP retrofit methodology provides significant confinement to circular and square columns, improving column ductility substantially. The FRP jack also improved diagonal tension capacity of columns, changing brittle shear-dominant column behavior to ductile flexure dominant response. The jackets, when the transverse strains are controlled, are able to improve performance of inadequately spliced circular columns, while remain somewhat ineffective in improving the performance of spliced square columns. FRP stay-in-place formwork provides excellent ductility to circular and square columns in new concrete columns, offering tremendous potential for use in practice. The analytical phase of the project demonstrates that the current analytical techniques for column analysis can be used for columns with external FRP reinforcement, provided that appropriate material models are used for confined concrete, FRP composites and reinforcement steel. Plastic analysis for flexure, starting with sectional moment-curvature analysis and continuing into member analysis incorporating the formation of plastic hinging, provide excellent predictions of inelastic force-deformation envelopes of recorded hysteretic behaviour. A displacement based design procedure adapted to FRP jacketed columns, as well as columns in FRP stay-in-place formwork provide a reliable design procedure for both retrofitting existing columns and designing new FRP reinforced concrete columns.
Author :fib Fédération internationale du béton Publisher :fib Fédération internationale du béton ISBN 13 :9782883940642 Total Pages :322 pages Book Rating :4.9/5 (46 download)
Book Synopsis Seismic Assessment and Retrofit of Reinforced Concrete Buildings by : fib Fédération internationale du béton
Download or read book Seismic Assessment and Retrofit of Reinforced Concrete Buildings written by fib Fédération internationale du béton and published by fib Fédération internationale du béton. This book was released on 2003-08-01 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: In most parts of the developed world, the building stock and the civil infrastructure are ageing and in constant need of maintenance, repair and upgrading. Moreover, in the light of our current knowledge and of modern codes, the majority of buildings stock and other types of structures in many parts of the world are substandard and deficient. This is especially so in earthquake-prone regions, as, even there, seismic design of structures is relatively recent. In those regions the major part of the seismic threat to human life and property comes from old buildings. Due to the infrastructure's increasing decay, frequently combined with the need for structural upgrading to meet more stringent design requirements (especially against seismic loads), structural retrofitting is becoming more and more important and receives today considerable emphasis throughout the world. In response to this need, a major part of the fib Model Code 2005, currently under development, is being devoted to structural conservation and maintenance. More importantly, in recognition of the importance of the seismic threat arising from existing substandard buildings, the first standards for structural upgrading to be promoted by the international engineering community and by regulatory authorities alike are for seismic rehabilitation of buildings. This is the case, for example, of Part 3: Strengthening and Repair of Buildings of Eurocode 8 (i. e. of the draft European Standard for earthquake-resistant design), and which is the only one among the current (2003) set of 58 Eurocodes attempting to address the problem of structural upgrading. It is also the case of the recent (2001) ASCE draft standard on Seismic evaluation of existing buildings and of the 1996 Law for promotion of seismic strengthening of existing reinforced concrete structures in Japan. As noted in Chapter 1 of this Bulletin, fib - as CEB and FIP did before - has placed considerable emphasis on assessment and rehabilitation of existing structures. The present Bulletin is a culmination of this effort in the special but very important field of seismic assessment and rehabilitation. It has been elaborated over a period of 4 years by Task Group 7.1 Assessment and retrofit of existing structures of fib Commission 7 Seismic design, a truly international team of experts, representing the expertise and experience of all the important seismic regions of the world. In the course of its work the team had six plenary two-day meetings: in January 1999 in Pavia, Italy; in August 1999 in Raleigh, North Carolina; in February 2000 in Queenstown, New Zealand; in July 2000 in Patras, Greece; in March 2001 in Lausanne, Switzerland; and in August 2001 in Seattle, Washington. In October 2002 the final draft of the Bulletin was presented to public during the 1st fib Congress in Osaka. It was also there that it was approved by fib Commission 7 Seismic Design. The contents is structured into main chapters as follows: 1 Introduction - 2 Performance objectives and system considerations - 3 Review of seismic assessment procedures - 4 Strength and deformation capacity of non-seismically detailed components - 5 Seismic retrofitting techniques - 6 Probabilistic concepts and methods - 7 Case studies
Book Synopsis Seismic Assessment and Rehabilitation of Existing Buildings by : S. Tanvir Wasti
Download or read book Seismic Assessment and Rehabilitation of Existing Buildings written by S. Tanvir Wasti and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present volume contains a total of 23 papers centred on the research area of Seismic Assessment and Rehabilitation of Existing Buildings. This subject also forms the core of Project SfP977231, sponsored by the NATO Science for Peace Office and supported by the Scientific and Technical Research Council of Turkey [ TUBIT AK ]. Most of these papers were presented by the authors at a NATO Science for Peace Workshop held in Izmir on 13 - 14 May, 2003 and reflect a part of their latest work conducted within the general confines of the title of the NATO Project. Middle East Technical University, Ankara, Turkey serves as the hub of Project SfP977231 and coordinates research under the project with universities within Turkey, e. g. Istanbul Technical University and Kocaeli University, and with partner institutions in Greece and the Former Yugoslav Republic of Macedonia: A few articles have also been contributed by invited experts, who are all noted researchers in the field. Altogether, the contents of the volume deal with a vast array of problems in Seismic Assessment and Rehabilitation and cover a wide range of possible solutions, techniques and proposals. It is intended to touch upon many of these aspects separately below. Earthquakes constitute possibly the most widely spread and also the most feared of natural hazards. Recent earthquakes within the first six months of 2003, such as the Bingol Earthquake in Turkey and the Algerian earthquake, have caused both loss of life and severe damage to property.
Book Synopsis Development of a Rapid Design Procedure for Emergency Repair of Bridge Columns Using Fiber-reinforced Polymers by : Susan E. Slater
Download or read book Development of a Rapid Design Procedure for Emergency Repair of Bridge Columns Using Fiber-reinforced Polymers written by Susan E. Slater and published by . This book was released on 2008 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fiber reinforced polymers (FRP) are increasingly used for seismic retrofit of undamaged bridge columns. The addition of a confining jacket increases overall strength and ductility of the column. However, FRPs can also be used for repair of a damaged bridge column after a seismic event. This research project explores the application of FRPs for retrofit of damaged circular columns. A decision tree for the emergency repair of damaged columns is presented. The decision tree aids field engineers first in assessing the extent of damage to a column from a seismic event, impact or any other source of damage. Once the level of damage is specified, the decision tree can be used to determine the feasibility of FRP retrofitting. If an FRP jacket is a viable option, suggested simplified design guidelines can be used to determine the design thickness and type of required FRP jacket that should be used for the emergency repair of the column. The project included detailed evaluation of existing confining models and a proposition of a new model based on a large database of previously tested specimen columns. Several design equations were also evaluated in order to find the most accurate yet simple approach for the design thickness. The end result is a step-by-step simplified guide for engineers to use in the field for emergency repair of damaged circular bridge columns.
Book Synopsis FRP Composites in Civil Engineering by : Jin-Guang Teng
Download or read book FRP Composites in Civil Engineering written by Jin-Guang Teng and published by Taylor & Francis. This book was released on 2001-11-15 with total page 998 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Steel Jacketing of Circular Reinforced Concrete Bridge Columns for Enhanced Flexural Performance by : Yuk Hon Chai
Download or read book Steel Jacketing of Circular Reinforced Concrete Bridge Columns for Enhanced Flexural Performance written by Yuk Hon Chai and published by . This book was released on 1991 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design Guidelines for Assessment Retrofit and Repair of Bridges for Seismic Performance by : M. J. N Priestley
Download or read book Design Guidelines for Assessment Retrofit and Repair of Bridges for Seismic Performance written by M. J. N Priestley and published by . This book was released on 1992 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Carbon Fiber Jacket Retrofit Test of Circular Flexural Columns with Lap Spliced Reinforcement by : Frieder Seible
Download or read book Carbon Fiber Jacket Retrofit Test of Circular Flexural Columns with Lap Spliced Reinforcement written by Frieder Seible and published by . This book was released on 1995 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theory and Practice in Earthquake Engineering and Technology by : T. G. Sitharam
Download or read book Theory and Practice in Earthquake Engineering and Technology written by T. G. Sitharam and published by Springer Nature. This book was released on 2022-06-07 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains diverse topics relevant to earthquake engineering and technology. The chapters are of interest to readers from various disciplines, as the different chapters discuss popular topics on earthquake engineering and allied disciplines. The chapters have adequate illustrations and tables for clarifying underlying concepts. The reader can understand the fundamental concepts easily, and the book is highly useful for practice in the field in addition to classroom learning.
Book Synopsis Assessment of Seismic Response and Steel Jacket Retrofit of Squat Circular Reinforced Concrete Bridge Columns by : Ravindra Verma
Download or read book Assessment of Seismic Response and Steel Jacket Retrofit of Squat Circular Reinforced Concrete Bridge Columns written by Ravindra Verma and published by . This book was released on 1993 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flexural Retrofit of Circular Reinforced Concrete Bridge Columns by Steel Jacketing -- Experimental Studies by : Yuk Hon Chai
Download or read book Flexural Retrofit of Circular Reinforced Concrete Bridge Columns by Steel Jacketing -- Experimental Studies written by Yuk Hon Chai and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Reinforcement of Circular Concrete Columns with Carbon Fiber Reinforced Polymer (CFRP) Jackets by : Burt K. Purba
Download or read book Reinforcement of Circular Concrete Columns with Carbon Fiber Reinforced Polymer (CFRP) Jackets written by Burt K. Purba and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Fibre-Reinforced Polymer (FRP) Composites for Structural Applications by : Jiping Bai
Download or read book Advanced Fibre-Reinforced Polymer (FRP) Composites for Structural Applications written by Jiping Bai and published by Woodhead Publishing. This book was released on 2022-12-05 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Fibre-reinforced Polymer (FRP) Composites for Structural Applications, Second Edition provides updates on new research that has been carried out on the use of FRP composites for structural applications. These include the further development of advanced FRP composites materials that achieve lighter and stronger FRP composites, how to enhance FRP integrated behavior through matrix modification, along with information on pretension treatments and intelligence technology. The development of new technology such as automated manufacturing and processing of fiber-reinforced polymer (FRP) composites have played a significant role in optimizing fabrication processing and matrix formation. In this new edition, all chapters have been brought fully up-to-date to take on the key aspects mentioned above. The book's chapters cover all areas relevant to advanced FRP composites, from the material itself, its manufacturing, properties, testing and applications in structural and civil engineering. Applications span from civil engineering, to buildings and the energy industry. Covers all areas relevant to advanced FRP composites, from the material itself, its manufacturing, properties, testing and applications in structural engineering Features new manufacturing techniques, such as automated fiber placement and 3D printing of composites Includes various applications, such as prestressed-FRP, FRP made of short fibers, continuous structural health monitoring using advanced optical fiber Bragg grating (FBG), durability of FRP-strengthened structures, and the application of carbon nano-tubes or platelets for enhancing durability of FRP-bonded structures
Download or read book Revolutionary Materials written by Sampe and published by CRC Press. This book was released on 2000-11-06 with total page 1054 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the 2nd International Conference on Advances in Civil Infrastructure and Construction Materials (CICM 2023), Volume 1 by : M. Shahria Alam
Download or read book Proceedings of the 2nd International Conference on Advances in Civil Infrastructure and Construction Materials (CICM 2023), Volume 1 written by M. Shahria Alam and published by Springer Nature. This book was released on with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt:
