Strengthening and Retrofitting of Existing Structures

Strengthening and Retrofitting of Existing Structures
Author: Aníbal Costa,António Arêde,Humberto Varum
Publsiher: Springer
Total Pages: 334
Release: 2017-10-13
Genre: Technology & Engineering
ISBN: 9789811058585

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This book presents the fundamentals of strengthening and retrofitting approaches, solutions and technologies for existing structures. It addresses in detail specific techniques for the strengthening of traditional constructions, reinforced concrete buildings, bridges and their foundations. Finally, it discusses issues related to standards and economic decision support tools for retrofitting.

Strengthening and Retrofitting of Existing Structures

Strengthening and Retrofitting of Existing Structures
Author: Anonim
Publsiher: Unknown
Total Pages: 375
Release: 2018-05
Genre: Electronic Book
ISBN: 1642241814

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Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. The planning of changes to existing buildings differs from new planning through an important condition; the existing construction must be taken as the basis of all planning and building actions. The need for seismic retrofitting of an existing building can arise due to several reasons like: building not designed to code, subsequent updating of code and design practice, subsequent upgrading of seismic zone, deterioration of strength and aging, modification of existing structure, change in use of the building, etc. Seismic retrofit is primarily applied to achieve public safety, with various levels of structure and material survivability determined by economic considerations. In recent years, an increased urgency has been felt to strengthen the deficient buildings, as part of active disaster mitigation, and to work out the modifications that may be made to an existing structure to improve the structural performance during an earthquake. Seismic retrofitting schemes can be either global or local, based on how many members of the structures they are used for. Global Retrofit methods include conventional methods (increase seismic resistance of existing structures) or non-conventional methods (reduction of seismic demand). Strengthening and Retrofitting of Existing Structures is a compendium of cutting-edge trends of the research and existing practices in strengthening and retrofitting of structural elements, as well as the findings of a research endeavor initiated by the authors to investigate and develop a robust structural retrofitting scheme by utilizing elastomeric polymers to enhance the resistance of reinforced concrete (RC) structures. It addresses in detail specific techniques for the strengthening of traditional constructions, reinforced concrete buildings, bridges and their foundations. It also presents insight into the key issues relevant to seismic retrofit of concrete frame buildings. Many guidelines are reviewed regarding seismic rehabilitation of school, office, hospital and apartment buildings.

Case Studies of Rehabilitation Repair Retrofitting and Strengthening of Structures

Case Studies of Rehabilitation  Repair  Retrofitting  and Strengthening of Structures
Author: Anonim
Publsiher: IABSE
Total Pages: 180
Release: 2010
Genre: Architecture
ISBN: 9783857481246

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Seismic Assessment and Retrofit of Reinforced Concrete Buildings

Seismic Assessment and Retrofit of Reinforced Concrete Buildings
Author: fib Fédération internationale du béton
Publsiher: fib Fédération internationale du béton
Total Pages: 312
Release: 2003-08-01
Genre: Technology & Engineering
ISBN: 2883940649

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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

Retrofitting of Concrete Structures by Externally Bonded FRPs With Emphasis on Seismic Applications

Retrofitting of Concrete Structures by Externally Bonded FRPs  With Emphasis on Seismic Applications
Author: fib Fédération internationale du béton
Publsiher: fib Fédération internationale du béton
Total Pages: 220
Release: 2006-01-01
Genre: Technology & Engineering
ISBN: 2883940754

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fib Bulletin 35 is the first bulletin to publish documentation from an fib short course. These courses are held worldwide and cover advanced knowledge of structural concrete in general, or specific topics. They are organized by fib and given by internationally recognized experts in fib, often supplemented with local experts active in fib. They are based on the knowledge and expertise from fib's ten Commissions and nearly fifty Task Groups. fib Bulletin 35 presents the course materials developed for the short course "Retrofitting of Concrete Structures through Externally Bonded FRP, with emphasis on Seismic Applications", given in Ankara and Istanbul in June 2005. The course drew on expertise both from outside Turkey and from the large pool of local experts on this subject. In most countries of the world, the building stock is ageing and needs continuous maintenance or repair. Moreover, the majority of existing constructions are deficient in the light of current knowledge and design codes. The problem of structural deficiency of existing constructions is especially acute in seismic regions, as, even there, seismic design of structures is relatively recent. The direct and indirect costs of demolition and reconstruction of structurally deficient constructions are often prohibitive; furthermore they entail a substantial waste of natural resources and energy. Therefore, structural retrofitting is becoming increasingly widespread throughout the world. Externally bonded Fibre Reinforced Polymers (FRPs) are rapidly becoming the technique of choice for structural retrofitting. They are cleaner and easier to apply than conventional retrofitting techniques, reduce disruption to the occupancy and operation of the facility, do not generate debris or waste, and reduce health and accident hazards at the construction site as well as noise and air pollution in the surroundings. fib Bulletin 35 gives state-of-the-art coverage of retrofitting through FRPs and presents relevant provisions from three recent standardisation milestones: EN 1998-3:2005 "Eurocode 8: Design of structures for earthquake resistance - Part 3: Assessment and retrofitting of buildings", the 2005 Draft of the Turkish seismic design code, and the Italian regulatory document CNR-DT 200/04, "Instructions for Design, Execution and Control of Strengthening Interventions by Means of Fibre-Reinforced Composites" (2004).

Structures Strengthened with Bonded Composites

Structures Strengthened with Bonded Composites
Author: Zhishen Wu,Yufei Wu,Mohamed F.M. Fahmy
Publsiher: Woodhead Publishing
Total Pages: 556
Release: 2020-07-15
Genre: Technology & Engineering
ISBN: 9780128210895

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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

Advances in Geotechnics and Structural Engineering

Advances in Geotechnics and Structural Engineering
Author: Sanjay Kumar Shukla,Sudharshan N. Raman,Bishwajit Bhattacharjee,J. Bhattacharjee
Publsiher: Springer Nature
Total Pages: 724
Release: 2021-04-29
Genre: Science
ISBN: 9789813369696

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This book comprises select proceedings of the International Conference on Trends and Recent Advances in Civil Engineering (TRACE 2020). The book focuses on the latest research developments in structural engineering, structural health monitoring, rehabilitation and retrofitting of structures, geotechnical engineering, and earthquake-resistant structures. The contents also cover the latest innovations in building repair and maintenance, and sustainable materials for rehabilitation and retrofitting. The contents of this book are useful for students, researchers, and professionals working in structural engineering and allied areas.

Concrete Technology New Trends Industrial Applications

Concrete Technology  New Trends  Industrial Applications
Author: A. Aguado,R. Gettu,S. Shah
Publsiher: CRC Press
Total Pages: 363
Release: 1994-11-10
Genre: Architecture
ISBN: 0419201505

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This book forms the Proceedings of an RILEM workshop in Barcelona in November 1994. It is structured as a series of presentations/reviews by some of the leading international researchers and technical experts of the concrete world. Coverage ranges from developments in materials science, through performance and behaviour of concrete, to manufacturing and construction.

Encyclopedia of Earthquake Engineering

Encyclopedia of Earthquake Engineering
Author: Michael Beer,Ioannis A. Kougioumtzoglou,Edoardo Patelli,Ivan Siu-Kui Au
Publsiher: Springer
Total Pages: 3953
Release: 2016-01-30
Genre: Technology & Engineering
ISBN: 3642353436

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The Encyclopedia of Earthquake Engineering is designed to be the authoritative and comprehensive reference covering all major aspects of the science of earthquake engineering, specifically focusing on the interaction between earthquakes and infrastructure. The encyclopedia comprises approximately 300 contributions. Since earthquake engineering deals with the interaction between earthquake disturbances and the built infrastructure, the emphasis is on basic design processes important to both non-specialists and engineers so that readers become suitably well informed without needing to deal with the details of specialist understanding. The encyclopedia’s content provides technically-inclined and informed readers about the ways in which earthquakes can affect our infrastructure and how engineers would go about designing against, mitigating and remediating these effects. The coverage ranges from buildings, foundations, underground construction, lifelines and bridges, roads, embankments and slopes. The encyclopedia also aims to provide cross-disciplinary and cross-domain information to domain-experts. This is the first single reference encyclopedia of this breadth and scope that brings together the science, engineering and technological aspects of earthquakes and structures.

Advanced Design Examples of Seismic Retrofit of Structures

Advanced Design Examples of Seismic Retrofit of Structures
Author: Mohammad Yekrangnia
Publsiher: Butterworth-Heinemann
Total Pages: 484
Release: 2018-09-13
Genre: Technology & Engineering
ISBN: 9780081025352

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Advanced Design Examples of Seismic Retrofit of Structures provides insights on the problems associated with the seismic retrofitting of existing structures. The authors present various international case studies of seismic retrofitting projects and the different possible strategies on how to handle complex problems encountered. Users will find tactics on a variety of problems that are commonly faced, including problems faced by engineers and authorities who have little or no experience in the practice of seismic retrofitting. Provides several examples of retrofitting projects that cover different structural systems, from non-engineered houses, to frame buildings Presents various retrofitting methods through examples Provides detailed, step-by-step design procedures for each example Includes real retrofit projects with photos of the details of various retrofitting techniques Contains several modeling details and hints making use of various software in this area

Structural Rehabilitation of Old Buildings

Structural Rehabilitation of Old Buildings
Author: Aníbal Costa,João Miranda Guedes,Humberto Varum
Publsiher: Springer Science & Business Media
Total Pages: 348
Release: 2013-09-11
Genre: Technology & Engineering
ISBN: 9783642396861

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This present book describes the different construction systems and structural materials and elements within the main buildings typologies, and it analyses the particularities of each of them, including, at the end, general aspects concerning laboratory and in-situ testing, numerical modeling, vulnerability assessment and construction maintenance.

ASCE Standard ASCE SEI 41 17 Seismic Evaluation and Retrofit of Existing Buildings

ASCE Standard  ASCE SEI  41 17  Seismic Evaluation and Retrofit of Existing Buildings
Author: American Society of Civil Engineers
Publsiher: Unknown
Total Pages: 550
Release: 2017
Genre: Buildings
ISBN: 0784414858

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Standard ASCE/SEI 41-17 describes deficiency-based and systematic procedures that use performance-based principles to evaluate and retrofit existing buildings to withstand the effects of earthquakes.

Textile Fibre Composites in Civil Engineering

Textile Fibre Composites in Civil Engineering
Author: Thanasis Triantafillou
Publsiher: Woodhead Publishing
Total Pages: 470
Release: 2016-02-08
Genre: Technology & Engineering
ISBN: 9781782424697

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Textile Fibre Composites in Civil Engineering provides a state-of-the-art review from leading experts on recent developments, the use of textile fiber composites in civil engineering, and a focus on both new and existing structures. Textile-based composites are new materials for civil engineers. Recent developments have demonstrated their potential in the prefabrication of concrete structures and as a tool for both strengthening and seismic retrofitting of existing concrete and masonry structures, including those of a historical value. The book reviews materials, production technologies, fundamental properties, testing, design aspects, applications, and directions for future research and developments. Following the opening introductory chapter, Part One covers materials, production technologies, and the manufacturing of textile fiber composites for structural and civil engineering. Part Two moves on to review testing, mechanical behavior, and durability aspects of textile fiber composites used in structural and civil engineering. Chapters here cover topics such as the durability of structural elements and bond aspects in textile fiber composites. Part Three analyzes the structural behavior and design of textile reinforced concrete. This section includes a number of case studies providing thorough coverage of the topic. The final section of the volume details the strengthening and seismic retrofitting of existing structures. Chapters investigate concrete and masonry structures, in addition to providing information and insights on future directions in the field. The book is a key volume for researchers, academics, practitioners, and students working in civil and structural engineering and those working with advanced construction materials. Details the range of materials and production technologies used in textile fiber composites Analyzes the durability of textile fiber composites, including case studies into the structural behavior of textile reinforced concrete Reviews the processes involved in strengthening existing concrete structures

FRP Composites for Reinforced and Prestressed Concrete Structures

FRP Composites for Reinforced and Prestressed Concrete Structures
Author: Perumalsamy Balaguru,Antonio Nanni,James Giancaspro
Publsiher: CRC Press
Total Pages: 322
Release: 2014-04-21
Genre: Technology & Engineering
ISBN: 9781482288537

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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.

Earthquake Resistant Engineering Structures X

Earthquake Resistant Engineering Structures X
Author: C.A. Brebbia
Publsiher: WIT Press
Total Pages: 344
Release: 2015-09-15
Genre: Technology & Engineering
ISBN: 9781845649661

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Containing the latest research on preparation for and mitigation of future earthquakes, this book addresses an area of increasing importance to many areas around the world. It contains research presented at the ninth and latest in a series of biennial conferences on the topic organised by the Wessex Institute. As world population has concentrated in urban areas, we have seen the consequences of natural disasters take an ever higher toll in human life and property. Adding to this trend, earthquake activity is being registered in areas that were not previously very active, thus the need for research into the application of technological advances to the specific area of earthquake engineering. This volume presents those advances. The papers cover Seismic Isolation and Energy Dissipation; Building Performance During Earthquakes; Nonlinear Numerical Analysis; Performance Based Design; Experimental Studies; Seismic Hazard Evaluation and Microzoning for Structural Design; Seismic Hazard Assessment; Case Studies.