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Book
Reducing the Seismic Vulnerability of Existing Buildings: Assessment and Retrofit
Authors: --- ---
ISBN: 3039212583 3039212575 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Devastating seismic events occurring all over the world keep raising the awareness of the scientific, technical and political communities to the need of identifying assets at risk and developing more effective and cost-efficient seismic risk mitigation strategies. Significant advances in earthquake engineering research have been achieved with the rise of new technologies and techniques with potential use in risk assessment, management and mitigation. Nevertheless, there is still much to be done, particularly with regard to existing buildings, most of them built without anti-seismic provisions. The wide variety of construction and structural systems, associated with the complex behaviour of their materials, greatly limit the application of current codes and building standards to the existing building stock. To tackle this issue, there is a fundamental need for developing multidisciplinary research that can lead to the development of more sophisticated and reliable methods of analysis, as well as to improved seismic retrofitting techniques compliant with buildings conservation principles. This book intends to contribute to the aforementioned goal by stimulating the exchange of ideas and knowledge on the assessment and reduction of the seismic vulnerability of existing buildings. 10 high quality contributions authored by international experts from Italy, Portugal, Morocco, Nepal, Czech Republic and Spain are included herein. All contributions pursue the protection of existing buildings by considering the most updated methods and advanced solutions emerging from different fields of expertise.


Book
Green Concrete for a Better Sustainable Environment
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Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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This book, Green Concrete for a Better Sustainable Environment, aims to cover recent advances in the development of green concrete solutions and discuss the best ways to leverage opportunities in this domain. Concrete can be described as green concrete if it has one of the following features; it uses waste material as at least one of its components, its production process does not lead to environmental destruction, or it has high performance and life cycle sustainability. At present, natural resources are running out. Cement and concrete made from industrial and construction waste can be regarded as valuable resources for civil infrastructure construction. Green concrete will not only contribute to a circular economy, but can also help to reduce the amount of embodied energy and CO2 emissions associated with cement manufacturing and aggregate quarrying. Using green concrete can also mitigate the environmental threats associated with industrial waste materials. This book covers the theoretical, experimental, applied and modelling research studies on the materials, products and structures related to sustainable cement-based composites.


Book
Green Concrete for a Better Sustainable Environment
Author:
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This book, Green Concrete for a Better Sustainable Environment, aims to cover recent advances in the development of green concrete solutions and discuss the best ways to leverage opportunities in this domain. Concrete can be described as green concrete if it has one of the following features; it uses waste material as at least one of its components, its production process does not lead to environmental destruction, or it has high performance and life cycle sustainability. At present, natural resources are running out. Cement and concrete made from industrial and construction waste can be regarded as valuable resources for civil infrastructure construction. Green concrete will not only contribute to a circular economy, but can also help to reduce the amount of embodied energy and CO2 emissions associated with cement manufacturing and aggregate quarrying. Using green concrete can also mitigate the environmental threats associated with industrial waste materials. This book covers the theoretical, experimental, applied and modelling research studies on the materials, products and structures related to sustainable cement-based composites.


Book
Green Concrete for a Better Sustainable Environment
Author:
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This book, Green Concrete for a Better Sustainable Environment, aims to cover recent advances in the development of green concrete solutions and discuss the best ways to leverage opportunities in this domain. Concrete can be described as green concrete if it has one of the following features; it uses waste material as at least one of its components, its production process does not lead to environmental destruction, or it has high performance and life cycle sustainability. At present, natural resources are running out. Cement and concrete made from industrial and construction waste can be regarded as valuable resources for civil infrastructure construction. Green concrete will not only contribute to a circular economy, but can also help to reduce the amount of embodied energy and CO2 emissions associated with cement manufacturing and aggregate quarrying. Using green concrete can also mitigate the environmental threats associated with industrial waste materials. This book covers the theoretical, experimental, applied and modelling research studies on the materials, products and structures related to sustainable cement-based composites.

Keywords

History of engineering & technology --- recycled aggregate concrete --- shrinkage and creep --- attached mortar --- prediction model --- construction and demolition wastes --- resource utilization --- recycled concrete hollow block --- masonry walls --- seismic performance --- steel frame --- infilled shear walls --- semi-rigid connection --- seismic behavior --- MSWI bottom ash --- concrete --- sulfate attack --- capillary transport --- crystallization --- husk mortar wallboard --- experiment --- lateral strength --- strain --- failure load --- full replacement ratio --- section steel and RAC --- bond behavior --- SRRC (Steel Reinforced Recycled Concrete) --- bond strength --- bond slip --- numerical simulation --- salt --- NaCl --- asphalt concrete --- freeze-thaw cycles --- winter road --- industrial waste --- sustainable concrete --- recycled expanded glass --- recycled aggregate concrete --- shrinkage and creep --- attached mortar --- prediction model --- construction and demolition wastes --- resource utilization --- recycled concrete hollow block --- masonry walls --- seismic performance --- steel frame --- infilled shear walls --- semi-rigid connection --- seismic behavior --- MSWI bottom ash --- concrete --- sulfate attack --- capillary transport --- crystallization --- husk mortar wallboard --- experiment --- lateral strength --- strain --- failure load --- full replacement ratio --- section steel and RAC --- bond behavior --- SRRC (Steel Reinforced Recycled Concrete) --- bond strength --- bond slip --- numerical simulation --- salt --- NaCl --- asphalt concrete --- freeze-thaw cycles --- winter road --- industrial waste --- sustainable concrete --- recycled expanded glass


Book
Seismic Assessment and Retrofit of Reinforced Concrete Structures
Authors: ---
ISBN: 3036550585 3036550577 Year: 2022 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Many constructions are built with reinforced or prestressed concrete, and most of them are designed or expected to resist earthquake actions in addition to gravity loads. To limit the effects of seismic events on reinforced or prestressed concrete structures, many attempts have been made by researchers in order to (i) improve the knowledge of the response of materials (steel bars and concrete) and members by means of laboratory tests, (ii) develop numerical and capacity models, (iii) enhance procedures for the dynamic analysis and assessment of the seismic performance of structures and (iv) suggest innovative interventions for the seismic retrofit of old and damaged reinforced or prestressed concrete structures. This Special Issue is a collection of 11 important research works that cover a wide range of problems related to the previously mentioned research fields. Both researchers and practical engineers are expected to greatly benefit from this Special Issue in view of their own work and for a better comprehension of the response of r.c. members and structures.


Book
Advanced Methods for Seismic Performance Evaluation of Building Structures
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Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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This Special Issue was created to collect the most recent and novel research on seismic performance evaluation of building structures. This issue includes three important topics on seismic engineering for building structures: (1) seismic design and performance evaluation, (2) structural dynamics, and (3) seismic hazard and risk analysis. To protect building structures from earthquakes, it is necessary to conduct seismic performance evaluations on structures with reliable methods and to retrofit these structures appropriately using the results of the seismic performance evaluation.

Keywords

History of engineering & technology --- strength --- yielding capping and ultimate deformation --- RC column --- cyclic test database --- artificial neural network --- bi-linear and tri-linear lumped plasticity model --- columns --- cyclic behavior --- low height-to-depth ratio --- modeling parameters --- calibration --- SPSW --- axial compression ratio --- hole size --- thickness of stiffening plate --- hole position --- hysteretic performance --- FEM (Finite Element Method) --- DYNA6 --- soil-structure interaction --- soil-pile dynamic stiffness --- retrofitting --- viscous dampers --- optimum design --- collapse-resistant capacity --- economic benefit --- sustainability --- steel reinforced concrete --- joint --- post critical --- moment-curvature --- nonlinear --- frame model --- multi-story steel frames --- self-centering bracing elements --- buckling-restrained brace (BRB) --- seismic analysis --- earthquake/seismic forces --- seismic damage --- mold transformer --- shaking table test --- non-structural elements --- dynamic characteristics --- ground motion --- earthquake --- response history analysis --- station --- seismicity --- machine learning --- structural types --- decision forest --- self-training procedures --- city-scale seismic damage simulation --- numerical models --- model parameter --- analysis algorithm --- seismic performance evaluation --- seismic risk --- seismic hazard --- seismic force resisting system --- energy dissipater --- seismic design --- nonlinear response


Book
Advanced Methods for Seismic Performance Evaluation of Building Structures
Author:
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This Special Issue was created to collect the most recent and novel research on seismic performance evaluation of building structures. This issue includes three important topics on seismic engineering for building structures: (1) seismic design and performance evaluation, (2) structural dynamics, and (3) seismic hazard and risk analysis. To protect building structures from earthquakes, it is necessary to conduct seismic performance evaluations on structures with reliable methods and to retrofit these structures appropriately using the results of the seismic performance evaluation.


Book
Advanced Methods for Seismic Performance Evaluation of Building Structures
Author:
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This Special Issue was created to collect the most recent and novel research on seismic performance evaluation of building structures. This issue includes three important topics on seismic engineering for building structures: (1) seismic design and performance evaluation, (2) structural dynamics, and (3) seismic hazard and risk analysis. To protect building structures from earthquakes, it is necessary to conduct seismic performance evaluations on structures with reliable methods and to retrofit these structures appropriately using the results of the seismic performance evaluation.

Keywords

History of engineering & technology --- strength --- yielding capping and ultimate deformation --- RC column --- cyclic test database --- artificial neural network --- bi-linear and tri-linear lumped plasticity model --- columns --- cyclic behavior --- low height-to-depth ratio --- modeling parameters --- calibration --- SPSW --- axial compression ratio --- hole size --- thickness of stiffening plate --- hole position --- hysteretic performance --- FEM (Finite Element Method) --- DYNA6 --- soil-structure interaction --- soil-pile dynamic stiffness --- retrofitting --- viscous dampers --- optimum design --- collapse-resistant capacity --- economic benefit --- sustainability --- steel reinforced concrete --- joint --- post critical --- moment-curvature --- nonlinear --- frame model --- multi-story steel frames --- self-centering bracing elements --- buckling-restrained brace (BRB) --- seismic analysis --- earthquake/seismic forces --- seismic damage --- mold transformer --- shaking table test --- non-structural elements --- dynamic characteristics --- ground motion --- earthquake --- response history analysis --- station --- seismicity --- machine learning --- structural types --- decision forest --- self-training procedures --- city-scale seismic damage simulation --- numerical models --- model parameter --- analysis algorithm --- seismic performance evaluation --- seismic risk --- seismic hazard --- seismic force resisting system --- energy dissipater --- seismic design --- nonlinear response --- strength --- yielding capping and ultimate deformation --- RC column --- cyclic test database --- artificial neural network --- bi-linear and tri-linear lumped plasticity model --- columns --- cyclic behavior --- low height-to-depth ratio --- modeling parameters --- calibration --- SPSW --- axial compression ratio --- hole size --- thickness of stiffening plate --- hole position --- hysteretic performance --- FEM (Finite Element Method) --- DYNA6 --- soil-structure interaction --- soil-pile dynamic stiffness --- retrofitting --- viscous dampers --- optimum design --- collapse-resistant capacity --- economic benefit --- sustainability --- steel reinforced concrete --- joint --- post critical --- moment-curvature --- nonlinear --- frame model --- multi-story steel frames --- self-centering bracing elements --- buckling-restrained brace (BRB) --- seismic analysis --- earthquake/seismic forces --- seismic damage --- mold transformer --- shaking table test --- non-structural elements --- dynamic characteristics --- ground motion --- earthquake --- response history analysis --- station --- seismicity --- machine learning --- structural types --- decision forest --- self-training procedures --- city-scale seismic damage simulation --- numerical models --- model parameter --- analysis algorithm --- seismic performance evaluation --- seismic risk --- seismic hazard --- seismic force resisting system --- energy dissipater --- seismic design --- nonlinear response


Book
Recent Advances in the Design of Structures with Passive Energy Dissipation Systems
Authors: --- ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Passive vibration control plays a crucial role in structural engineering. Common solutions include seismic isolation and damping systems with various kinds of devices, such as viscous, viscoelastic, hysteretic, and friction dampers. These strategies have been widely utilized in engineering practice, and their efficacy has been demonstrated in mitigating damage and preventing the collapse of buildings, bridges, and industrial facilities. However, there is a need for more sophisticated analytical and numerical tools to design structures equipped with optimally configured devices. On the other hand, the family of devices and dissipative elements used for structural protection keeps evolving, because of growing performance demands and new progress achieved in materials science and mechanical engineering. This Special Issue collects 13 contributions related to the development and application of passive vibration control strategies for structures, covering both traditional and innovative devices. In particular, the contributions concern experimental and theoretical investigations of high-efficiency dampers and isolation bearings; optimization of conventional and innovative energy dissipation devices; performance-based and probability-based design of damped structures; application of nonlinear dynamics, random vibration theory, and modern control theory to the design of structures with passive energy dissipation systems; and critical discussion of implemented isolation/damping technologies in significant or emblematic engineering projects.

Keywords

History of engineering & technology --- stay cable --- vibration control --- hybrid control --- inertial mass damper --- viscous damper --- passive vibration control --- inerter system --- cable bracing --- parametric study --- optimal design --- tuned mass damper --- inerter --- high-rise buildings --- wind tunnel test --- wind-induced response --- structural control --- synchronous multi-point pressure measurement --- seismic protection --- displacement-dependent damping --- stochastic dynamic analysis --- metal damper --- performance parameter --- cyclic loading test --- hysteretic behavior --- energy dissipation capability --- multi-degree of freedom --- graphical approach --- suspension bridges --- seismic test --- pushover test --- precast concrete structure --- shake table --- Base-Isolated Buildings --- bearing displacement --- STMD --- MTMDs --- d-MTMDs --- incremental dynamic analysis --- earthquake --- energy dissipation --- “double-step” characteristics --- stiffness lifting --- seismic performance --- horizontal connection --- prefabricated shear wall structural systems --- high-tech factory --- lead rubber bearing --- moving crane --- soil structure interaction --- vibration --- wind load --- motion-based design --- uncertainty conditions --- constrained multi-objective optimization --- reliability analysis --- passive structural control --- cable-stayed bridges --- adjacent buildings --- seismic pounding --- energy-dissipation systems --- distributed damping systems --- optimal placement --- multibuilding systems --- hybrid genetic algorithm --- parallel computing --- pounding protection --- seismic isolation --- energy dissipation devices --- negative stiffness device --- damped structures --- stay cable --- vibration control --- hybrid control --- inertial mass damper --- viscous damper --- passive vibration control --- inerter system --- cable bracing --- parametric study --- optimal design --- tuned mass damper --- inerter --- high-rise buildings --- wind tunnel test --- wind-induced response --- structural control --- synchronous multi-point pressure measurement --- seismic protection --- displacement-dependent damping --- stochastic dynamic analysis --- metal damper --- performance parameter --- cyclic loading test --- hysteretic behavior --- energy dissipation capability --- multi-degree of freedom --- graphical approach --- suspension bridges --- seismic test --- pushover test --- precast concrete structure --- shake table --- Base-Isolated Buildings --- bearing displacement --- STMD --- MTMDs --- d-MTMDs --- incremental dynamic analysis --- earthquake --- energy dissipation --- “double-step” characteristics --- stiffness lifting --- seismic performance --- horizontal connection --- prefabricated shear wall structural systems --- high-tech factory --- lead rubber bearing --- moving crane --- soil structure interaction --- vibration --- wind load --- motion-based design --- uncertainty conditions --- constrained multi-objective optimization --- reliability analysis --- passive structural control --- cable-stayed bridges --- adjacent buildings --- seismic pounding --- energy-dissipation systems --- distributed damping systems --- optimal placement --- multibuilding systems --- hybrid genetic algorithm --- parallel computing --- pounding protection --- seismic isolation --- energy dissipation devices --- negative stiffness device --- damped structures


Book
New Trends in Recycled Aggregate Concrete
Authors: --- ---
ISBN: 3039211412 3039211404 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This book is the result of a Special Issue published in Applied Sciences, entitled “New Trends in Recycled Aggregate Concrete"". It identifies emerging research areas within the field of recycled aggregate concrete and contributes to the increased use of this eco-efficient material.Its contents are organised in the following sections: Upscaling the use of recycled aggregate concrete in structural design; Large scale applications of recycled aggregate concrete; Long-term behaviour of recycled aggregate concrete; Performance of recycled aggregate concrete in very aggressive environments; Reliability of recycled aggregate concrete structures; Life cycle assessment of recycled aggregate concrete; New applications of recycled aggregate concrete.

Keywords

crushing --- heavyweight waste glass --- n/a --- recycled aggregate quality --- seismic load --- microstructure --- construction waste --- permeability --- bond strength --- seismic performance --- aggregate interlock mechanism --- recycled concrete aggregates --- compressive strength --- crumb rubber --- cellular concrete --- model --- cyclic load --- recycled aggregate --- crushed glass --- models --- recycled aggregate concrete --- reactive power concrete --- recycled aggregate concrete (RAC) --- energy absorbing --- creep --- elevated temperature --- fiber-reinforced concrete --- size effect --- recycled concrete aggregate --- geological nature of aggregates --- mechanical properties --- recycled concrete --- artificial neural networks --- recycled aggregates --- steel fibre --- quality of aggregates --- aggregates --- foam stability --- ceramic foam --- durable characteristics --- nylon fiber --- concrete --- mechanical characteristics --- strain rate --- steel reinforced recycled aggregate concrete (SRRAC) --- dynamic mechanical property --- concrete sludge fines --- water absorption --- columns --- environmental impact --- blast-furnace slag --- input variable --- tensile splitting strength --- aggregate --- returned concrete --- reinforced concrete member --- variable sensitivity --- soil stabilization --- numerical analysis --- shear behavior --- fly-ash --- modulus --- life cycle assessment --- foam structure --- silica fume --- recycling --- recycled coarse aggregate concrete --- ready-mixed concrete --- foam concrete --- flexural behavior --- mixture proportioning --- aggregate characteristic --- residual properties --- CT --- reinforced concrete --- shrinkage

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