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Seismic Evaluation and Rehabilitation of Structures
by Alper Ilki Michael N. FardisIn the past, facilities considered to be at the end of their useful life were demolished and replaced with new ones that better met the functional requirements of modern society, including new safety standards. Humankind has recently recognised the threats to the environment and to our limited natural resources due to our relentless determination to destroy the old and build anew. With the awareness of these constraints and the emphasis on sustainability, in future the majority of old structures will be retrofitted to extend their service life as long as feasible. In keeping with this new approach, the EU's Construction Products Regulation 305/2011, which is the basis of the Eurocodes, included the sustainable use of resources as an "Essential Requirement" for construction. So, the forthcoming second generation of EN-Eurocodes will cover not only the design of new structures, but the rehabilitation of existing ones as well. Most of the existing building stock and civil infrastructures are seismically deficient. When the time comes for a decision to prolong their service life with the help of structural and architectural upgrading, seismic retrofitting may be needed. Further, it is often decided to enhance the earthquake resistance of facilities that still meet their functional requirements and fulfil their purpose, if they are not earthquake-safe. In order to decide how badly a structure needs seismic upgrading or to prioritise it in a population of structures, a seismic evaluation is needed, which also serves as a guide for the extent and type of strengthening. Seismic codes do not sufficiently cover the delicate phase of seismic evaluation nor the many potential technical options for seismic upgrading; therefore research is on-going and the state-of-the-art is constantly evolving. All the more so as seismic evaluation and rehabilitation demand considerable expertise, to make best use of the available safety margins in the existing structure, to adapt the engineering capabilities and techniques at hand to the particularities of a project, to minimise disruption of use, etc. Further, as old structures are very diverse in terms of their materials and layout, seismic retrofitting does not lend itself to straightforward codified procedures or cook-book approaches. As such, seismic evaluation and rehabilitation need the best that the current state-of-the-art can offer on all aspects of earthquake engineering. This volume serves this need, as it gathers the most recent research of top seismic experts from around the world on seismic evaluation, retrofitting and closely related subjects.
Seismic Events in Glaciers
by Marek GórskiThe occurrence of seismic events in glaciers has been an issue in the scientific literature since the early 1950s, following the report about icequakes in Baffin Island. Targeted seismological studies were undertaken by the Polish Expedition to Spitsbergen in 1962 and then continued at various glaciers in the Arctic, Antarctic and the Alps. The author of the book has been engaged in the project since 1970; he designed the layout of observations and instrumentation. The quakes he observed were categorized into two groups: typical seismic events called icequakes, and relatively long-period events named ice vibrations. In the case of icequakes, the space-time distributions and focal parameters were determined. In the case of ice vibrations, a spectral analysis was made. The present book is a synthesis of the results obtained. There are reports that the number of seismic events in glaciers has recently grown, which may be related to changing geometry of glaciers due to changing thermal conditions.
Seismic Exploration to Reservoir Excellence
by Sanjeev Rajput Ravi Kant PathakThis book unveils a comprehensive suite of seismic-to-reservoir excellence workflows meticulously designed to address the unique challenges posed by asset exploration, appraisal, and development. It offers a spectrum of solutions, from the simplest to the most intricate, tailored to accommodate varying volumes and quality of information. This includes the incorporation of decision-making using diverse data sources to make informed decisions while minimizing financial risk; offering strategies to mitigate risk and maximize ROI; and showcasing real-world success stories where these flexible workflows have been successfully applied. "Seismic Exploration to Reservoir Excellence" serves as a bridge between technical experts and professionals from various fields catering to students, researchers, industrial professionals, and global stakeholders who are interested in the vital energy security conversation of the 21st century- a conversation that aims to harmonize energy production with integrity environmental responsibility.
Seismic Ground Response Analysis
by Nozomu YoshidaThis book presents state-of-the-art information on seismic ground response analysis, and is not only very valuable and useful for practitioners but also for researchers. The topics covered are related to the stages of analysis: 1. Input parameter selection, by reviewing the in-situ and laboratory tests used to determine dynamic soil properties as well as the methods to compile and model the dynamic soil properties from literature;2. Input ground motion; 3. Theoretical background on the equations of motion and methods for solving them; 4. The mechanism of damping and how this is modeled in the equations of motions; 5. Detailed analysis and discussion of results of selected case studies which provide valuable information on the problem of seismic ground response analysis from both a theoretical and practical point of view.
Seismic Hazard and Risk Assessment: Updated Overview With Emphasis On Romania (Springer Natural Hazards Ser.)
by Radu Vacareanu Constantin IonescuThis book contains the best contributions presented during the 6th National Conference on Earthquake Engineering and the 2nd National Conference on Earthquake Engineering and Seismology - 6CNIS & 2CNISS, that took place on June 14-17, 2017 in Bucharest - Romania, at the Romanian Academy and Technical University of Civil Engineering of Bucharest. The book offers an updated overview of seismic hazard and risk assessment activities, with an emphasis on recent developments in Romania, a very challenging case study because of its peculiar intermediate-depth seismicity and evolutive code-compliant building stock. Moreover, the book collects input of renowned scientists and professionals from Germany, Greece, Italy, Japan, Netherlands, Portugal, Romania, Spain, Turkey and United Kingdom.The content of the book focuses on seismicity of Romania, geotechnical earthquake engineering, structural analysis and seismic design regulations, innovative solutions for seismic protection of building structures, seismic risk evaluation, resilience-based assessment of structures and management of emergency situations. The sub-chapters consist of the best papers of 6CNIS & 2CNISS selected by the International Advisory and Scientific Committees. The book is targeted at researchers and experts in seismic hazard and risk, evaluation and rehabilitation of buildings and structures, insurers and re-insurers, and decision makers in the field of emergency situations and recovery activities.
Seismic Hazards and Risk: Select Proceedings of 7th ICRAGEE 2020 (Lecture Notes in Civil Engineering #116)
by T. G. Sitharam Sreevalsa Kolathayar Mukat Lal SharmaThis volume presents select papers presented at the 7th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. The papers discuss advances in the fields of soil dynamics and geotechnical earthquake engineering. Some of the themes include seismic risk assessment, engineering seismology, wave propagation, remote sensing applications for geohazards,engineering vibrations, etc. A strong emphasis is placed on connecting academic research and field practice, with many examples, case studies, best practices, and discussions on performance based design. This volume will be of interest to researchers and practicing engineers alike.
Seismic Hydrocarbon Exploration
by Hamid N. AlsadiThis book presents the essential principles and applications of seismic oil-exploration techniques. It concisely covers all stages in exploration activities (data field acquisition, data processing and interpretation), supplementing the main text with a wealth of (>350) illustrations and figures. The book concentrates on the physics of the applied principles, avoiding intricate mathematical treatment and lengthy theoretical reasoning. A further prominent feature is the inclusion of a separate chapter on 3D surveying techniques and another, equally important chapter on seismic digital signals and the aliasing problem, which is presented in an accessible form. The book is designed to meet the needs of both the academic and industrial worlds. University students and employees of oil-exploration companies alike will find the book to be a valuable resource.
Seismic Imaging and Inversion
by Robert H. Stolt Arthur B. WegleinExtracting information from seismic data requires knowledge of seismic wave propagation and reflection. The commonly used method involves solving linearly for a reflectivity at every point within the Earth, but this book follows an alternative approach which invokes inverse scattering theory. By developing the theory of seismic imaging from basic principles, the authors relate the different models of seismic propagation, reflection and imaging - thus providing links to reflectivity-based imaging on the one hand and to nonlinear seismic inversion on the other. The comprehensive and physically complete linear imaging foundation developed presents new results at the leading edge of seismic processing for target location and identification. This book serves as a fundamental guide to seismic imaging principles and algorithms and their foundation in inverse scattering theory and is a valuable resource for working geoscientists, scientific programmers and theoretical physicists.
Seismic Inversion: Theory and Applications
by Yanghua WangSeismic inversion aims to reconstruct a quantitative model of the Earth subsurface, by solving an inverse problem based on seismic measurements. There are at least three fundamental issues to be solved simultaneously: non-linearity, non-uniqueness, and instability. This book covers the basic theory and techniques used in seismic inversion, corresponding to these three issues, emphasising the physical interpretation of theoretical concepts and practical solutions. This book is written for master and doctoral students who need to understand the mathematical tools and the engineering aspects of the inverse problem needed to obtain geophysically meaningful solutions. Building on the basic theory of linear inverse problems, the methodologies of seismic inversion are explained in detail, including ray-impedance inversion and waveform tomography etc. The application methodologies are categorised into convolutional and wave-equation based groups. This systematic presentation simplifies the subject and enables an in-depth understanding of seismic inversion. This book also provides a practical guide to reservoir geophysicists who are attempting quantitative reservoir characterisation based on seismic data. Philosophically, the seismic inverse problem allows for a range of possible solutions, but the techniques described herein enable geophysicists to exclude models that cannot satisfy the available data. This book summarises the author’s extensive experience in both industry and academia and includes innovative techniques not previously published.
Seismic Inversion Methods: A Practical Approach (Springer Geophysics)
by S. P. Maurya N. P. Singh K. H. SinghThis book introduces readers to seismic inversion methods and their application to both synthetic and real seismic data sets. Seismic inversion methods are routinely used to estimate attributes like P-impedance, S-impedance, density, the ratio of P-wave and S-wave velocities and elastic impedances from seismic and well log data. These attributes help to understand lithology and fluid contents in the subsurface. There are several seismic inversion methods available, but their application and results differ considerably, which can lead to confusion. This book explains all popular inversion methods, discusses their mathematical backgrounds, and demonstrates their capacity to extract information from seismic reflection data. The types covered include model-based inversion, colored inversion, sparse spike inversion, band-limited inversion, simultaneous inversion, elastic impedance inversion and geostatistical inversion, which includes single-attribute analysis, multi-attribute analysis, probabilistic neural networks and multi-layer feed-forward neural networks. In addition, the book describes local and global optimization methods and their application to seismic reflection data. Given its multidisciplinary, integrated and practical approach, the book offers a valuable tool for students and young professionals, especially those affiliated with oil companies.
Seismic Isolation, Energy Dissipation and Active Vibration Control of Structures: 17th World Conference on Seismic Isolation (17WCSI) (Lecture Notes in Civil Engineering #309)
by Gian Paolo CimellaroThis volume gathers the proceedings of the 17th World Conference on Seismic Isolation (17WCSI), held in Turin, Italy on September 11-15, 2022. Endorsed by ASSISi Association (Anti-Seismic Systems International Society), the conference discussed state-of-the-art information as well as emerging concepts and innovative applications related to seismic isolation, energy dissipation and active vibration control of structures, resilience and sustainability. The volume covers highly diverse topics, including earthquake-resistant construction, protection from natural and man-made impacts, safety of structures, vulnerability, international standards on structures with seismic isolation, seismic isolation in existing structures and cultural heritage, seismic isolation in high rise buildings, seismic protection of non-structural elements, equipment and statues. The contributions, which are published after a rigorous international peer-review process, highlight numerous exciting ideas that will spur novel research directions and foster multidisciplinary collaboration among different specialists.
Seismic Isolation, Energy Dissipation and Active Vibration Control of Structures: 18th World Conference on Seismic Isolation (18WCSI) - Volume 1 (Lecture Notes in Civil Engineering #533)
by Bahadir Sadan Cuneyt Tuzun Mustafa ErdikThis book gathers the proceedings of the 18th World Conference on Seismic Isolation (18WCSI), held in Antalya, Turkey, on November 6-10, 2023. Organized by Turkish Association for Seismic Isolation (TASI) and endorsed by Anti-Seismic Systems International Society (ASSISi Association), the conference discussed state-of-the-art information as well as emerging concepts and innovative applications related to seismic isolation, energy dissipation, and active vibration control of structures, resilience, and sustainability. The book covers highly diverse topics, including earthquake-resistant construction, protection from natural and man-made impacts, safety of structures, vulnerability, international standards on structures with seismic isolation, seismic isolation in existing structures and cultural heritage, seismic isolation in high-rise buildings, and seismic protection of non-structural elements, equipment, and statues.
Seismic Isolation, Energy Dissipation and Active Vibration Control of Structures: 18th World Conference on Seismic Isolation (18WCSI) - Volume 2 (Lecture Notes in Civil Engineering #412)
by Cem Yenidogan Ani Natali Sigaher Fatih SutcuThis book gathers proceedings of the 18th World Conference on Seismic Isolation (18WCSI), held in Antalya, Türkiye on November 6-10, 2023. Organized by the Turkish Association for Seismic Isolation (TASI) and endorsed by the Anti-Seismic Systems International Society (ASSISi), the conference discussed state-of-the-art information, as well as emerging concepts and innovative applications related to seismic isolation, energy dissipation, and active vibration control of structures, and resilience and sustainability. The volume covers highly diverse topics centered around energy dissipation devices. Chapters have been dedicated to the design and testing of energy dissipation devices, and the use of these devices in the design of structures, and retrofit of existing structures and cultural heritage. The contributions, which are published after a rigorous international peer-review process, highlight numerous exciting ideas that will spur novel research directions and foster multidisciplinary collaboration among different specialists.
Seismic Isolation, Structural Health Monitoring, and Performance Based Seismic Design in Earthquake Engineering: Recent Developments
by Azer A. Kasimzade Erdal Şafak Carlos E. Ventura Farzad Naeim Yoichi MukaiThis book features chapters based on selected presentations from the International Congress on Advanced Earthquake Resistance of Structures, AERS2016, held in Samsun, Turkey, from 24 to 28 October 2016.It covers the latest advances in three widely popular research areas in Earthquake Engineering: Performance-Based Seismic Design, Seismic Isolation Systems, and Structural Health Monitoring.The book shows the vulnerability of high-rise and seismically isolated buildings to long periods of strong ground motions, and proposes new passive and semi-active structural seismic isolation systems to protect against such effects. These systems are validated through real-time hybrid tests on shaking tables.Structural health monitoring systems provide rapid assessment of structural safety after an earthquake and allow preventive measures to be taken, such as shutting down the elevators and gas lines, before damage occurs. Using the vibration data from instrumented tall buildings, the book demonstrates that large, distant earthquakes and surface waves, which are not accounted for in most attenuation equations, can cause long-duration shaking and damage in tall buildings.The overview of the current performance-based design methodologies includes discussions on the design of tall buildings and the reasons common prescriptive code provisions are not sufficient to address the requirements of tall-building design. In addition, the book explains the modelling and acceptance criteria associated with various performance-based design guidelines, and discusses issues such as selection and scaling of ground motion records, soil-foundation-structure interaction, and seismic instrumentation and peer review needs. The book is of interest to a wide range of professionals in earthquake engineering, including designers, researchers, and graduate students.
Seismic Performance Analysis of Concrete Gravity Dams (Advanced Topics in Science and Technology in China #57)
by Gaohui Wang Wenbo Lu Sherong ZhangThis book evaluates the seismic performance of concrete gravity dams, considering the effects of strong motion duration, mainshock-aftershock seismic sequence, and near-fault ground motion. It employs both the extended finite element method (XFEM) and concrete damaged plasticity (CDP) models to characterize the mechanical behavior of concrete gravity dams under strong ground motions, including the dam-reservoir-foundation interaction. In addition, it discusses the effects of the initial crack, earthquake direction, and cross-stream seismic excitation on the nonlinear dynamic response to strong ground motions, and on the damage-cracking risk of concrete gravity dams.This book provides a theoretical basis for the seismic performance evaluation of high dams, and can also be used as a reference resource for researchers and graduate students engaged in the seismic design of high dams.
Seismic Performance of Asymmetric Building Structures
by Chunwei Zhang Zeshan Alam Li Sun Bijan SamaliSeismic Performance of Asymmetric Building Structures presents detailed investigations on the effective assessment of structural seismic response under excessive torsional vibrations, demonstrating behavioural aspects from local response perspective to global seismic demands. The work provides comprehensive analytical, computational, experimental investigations, and proposes improved design guidelines that structural engineers can utilize to enhance the seismic design of asymmetric building structures. Combining extensive experimental and numerical data stock for seismic performance assessment with a particular focus on asymmetric building structures, the book includes:• An overview of asymmetric building structures from seismic damage perspective• Local and global performance assessment of asymmetric structures under extreme seismic actions• Post-earthquake damage evaluation from varying frequency trends • Extended numerical applications for experimental response validations• Evaluation of critical regions of asymmetric structure with stress concentration• Statistical distribution of seismic response under varying design parameters• Design guidelines for asymmetric building structures This work's comprehensive evaluations are carried out with modern sensing techniques planned with meticulous attention to cover objectives with a particular focus on asymmetry in reinforced concrete and steel structures. It assesses various aspects of asymmetric building structures that are rarely dealt with in the current literature. It gathers fruitful information from various building design codes and explains their limitations in addressing damage-related challenges, which is not only useful for practicing engineers but also for academics. The book will be invaluable for experts, researchers, students and practitioners from relevant areas, as well as for emergency preparedness managers.
Seismic Performance of Concrete Buildings: Structures and Infrastructures Book Series, Vol. 9
by Liviu Crainic Mihai MunteanuThis book examines and presents essential aspects of the behavior, analysis, design and detailing of reinforced concrete buildings subjected to strong seismic activity. Seismic design is an extremely complex problem that has seen spectacular development in the last decades. The present volume tries to show how the principles and methods of earthqua
Seismic Performance of Corroded Reinforced Concrete Structures Retrofitted with FRP
by Dejian ShenThis monograph is written based on the author's research on seismic assessment and retrofitting of corrosion-damaged reinforced concrete structures during the recent two decades. It points out that reinforcement corrosion is one of the main reasons that contribute to the deterioration of the seismic performances and durability of reinforced concrete structures. It illustrates that the mechanism of reinforcement corrosion should be investigated to propose a method for evaluating the seismic performance of corroded components and structures. It calls for a comprehensive investigation on the bond performance between corroded reinforcing bars and concrete, as well as the degradation law of seismic performance of corroded beams, columns, beam column joints, and shear walls from the perspectives of materials, components, and structures. With the promotion and application of composite materials, fiber reinforced polymer (FRP) has been proposed as an ideal material for retrofitting reinforced concrete structures. By emphasizing the mechanism of reinforcement corrosion and the integrated evaluation of materials, components, and structures, this monograph offers an idea of using FRP to retrofit the seismic performance of corroded reinforced concrete structures. It is designed as a reference work for professionals or practitioners and a textbook for undergraduates or postgraduates. This book provides valuable knowledge and useful methods that can be considered in the field of seismic assessment and retrofitting of corrosion-damaged reinforced concrete structures with other FRPs.
Seismic Performance of Soil-Foundation-Structure Systems: Selected Papers from the International Workshop on Seismic Performance of Soil-Foundation-Structure Systems, Auckland, New Zealand, 21-22 November 2016
by Nawawi Chouw, Rolando P. Orense & Tam LarkinSeismic Performance of Soil-Foundation-Structure Systems presents invited papers presented at the international workshop (University of Auckland, New Zealand, 21-22 November 2016). This international workshop brought together outstanding work in earthquake engineering that embraces a holistic consideration of soilfoundation-structure systems. For example, the diversity of papers in this volume is represented by contributions from the fields of shallow foundation in liquefiable soil, spatially distributed lifelines, bridges, clustered structures (see photo on front cover), sea floor seismic motion, multi-axial ground excitation, deep foundations, soil-foundation-structurefluid interaction, liquefaction-induced settlement and uplift with SFSI. A fundamental knowledge gap is manifested by the isolated manner geotechnical and structural engineers work. A holistic consideration of soil-foundation-structures systems is only possible if civil engineers work collaboratively to the mutual benefit of all disciplines. Another gap occurs by the retarded application of up-to-date research findings in engineering design practices. Seismic Performance of Soil-Foundation-Structure Systems is the outcome from the recognized need to close this gap, since it has been observed that a considerable delay exists between published research findings and application of the principles revealed by the research. Seismic Performance of Soil-Foundation-Structure Systems will be helpful in developing more understanding of the complex nature of responses these systems present under strong earthquakes, and will assist engineers in closing the gaps identified above.
Seismic Reflections of Rock Properties
by Jack Dvorkin Mario A. Gutierrez Dario Grana Jack Dvorkin Mario A. GutierrezThis book provides an accessible guide to using the rock physics-based forward modeling approach for mapping the subsurface, systematically linking rock properties to seismic amplitude. Providing practical workflows, the book shows how to methodically vary lithology, porosity, rock type, and pore fluids and reservoir geometry, calculate the corresponding elastic properties, and then generate synthetic seismic traces. These synthetic traces can then be compared to actual seismic traces from the field: a similar actual seismic response implies similar rock properties in the subsurface. The book catalogs various cases, including clastic sediments, carbonates, time-lapse seismic monitoring, and discusses the effect of attenuation on seismic reflections. It shows how to build earth models (pseudo-wells) using deterministic and statistical approaches, and includes case studies based on real well data. A vital guide for researchers and petroleum geologists, in industry and academia, providing sample catalogs of synthetic seismic reflections from a variety of realistic reservoir models.
Seismic Reservoir Modeling: Theory, Examples, and Algorithms
by Dario Grana Tapan Mukerji Philippe DoyenSeismic reservoir characterization aims to build 3-dimensional models of rock and fluid properties, including elastic and petrophysical variables, to describe and monitor the state of the subsurface for hydrocarbon exploration and production and for CO₂ sequestration. Rock physics modeling and seismic wave propagation theory provide a set of physical equations to predict the seismic response of subsurface rocks based on their elastic and petrophysical properties. However, the rock and fluid properties are generally unknown and surface geophysical measurements are often the only available data to constrain reservoir models far away from well control. Therefore, reservoir properties are generally estimated from geophysical data as a solution of an inverse problem, by combining rock physics and seismic models with inverse theory and geostatistical methods, in the context of the geological modeling of the subsurface. A probabilistic approach to the inverse problem provides the probability distribution of rock and fluid properties given the measured geophysical data and allows quantifying the uncertainty of the predicted results. The reservoir characterization problem includes both discrete properties, such as facies or rock types, and continuous properties, such as porosity, mineral volumes, fluid saturations, seismic velocities and density. Seismic Reservoir Modeling: Theory, Examples and Algorithms presents the main concepts and methods of seismic reservoir characterization. The book presents an overview of rock physics models that link the petrophysical properties to the elastic properties in porous rocks and a review of the most common geostatistical methods to interpolate and simulate multiple realizations of subsurface properties conditioned on a limited number of direct and indirect measurements based on spatial correlation models. The core of the book focuses on Bayesian inverse methods for the prediction of elastic petrophysical properties from seismic data using analytical and numerical statistical methods. The authors present basic and advanced methodologies of the current state of the art in seismic reservoir characterization and illustrate them through expository examples as well as real data applications to hydrocarbon reservoirs and CO₂ sequestration studies.
Seismic Resilience Assessment of Hospital Infrastructure (Resilience and Sustainability in Civil, Mechanical, Aerospace and Manufacturing Engineering Systems)
by Qingxue Shang Tao Wang Jichao Li Mohammad NooriHealthcare facilities or hospital systems are classified as some of the most critical infrastructure systems when responding to natural disasters. Seismic Resilience Assessment of Hospital Infrastructure systematically presents a suite of novel techniques developed by the authors and their team for seismic resilience assessment of hospital infrastructure, with particular emphasis on seismic tests and fragility models of hospital equipment, resilience assessment of single hospital buildings and emergency departments, and post-earthquake functionality of urban hospital infrastructures.Features: Presents a state-of-the-art review on hospital resilience Develops seismic fragility model database for hospital equipment based on shaking table tests Provides a road map for effective and efficient methods necessary for assessing and improving seismic resilience of hospital systems and other critical engineering systems Expertly summarizes outcomes of many important research projects sponsored by various research agencies, including the National Natural Science Foundation of China
Seismic Resistance of Vernacular Timber Frames with Infills: Case Studies from Japan and Romania
by Andreea Dutu Yoshihiro YamazakiThis book provides an engineer’s perspective on the traditional construction methods for timber frames with infills, focusing on traditional paianta houses in Romania and minka houses in Japan to provide insights into the construction, seismic behavior, and design considerations of such structures.The nuances of each country’s traditional construction methods are considered, as well as the shared seismic culture and the similar functionality and local materials used for the houses, plus challenges from earthquake loading and fire. The efforts to preserve traditional houses in Romania are contrasted with Japan’s regulatory framework for traditional residential construction methods. Strengthening solutions are also proposed for timberframed houses with infills, considering various causes of degradation.• Introduces examples from non- seismic and seismic- prone countries.• Provides a comparative analysis of worldwide examples.• Presents design examples illustrating the integration of traditional architecture with modern design standards.The book serves as a comprehensive guide to the engineering intricacies of traditional houses in Romania and Japan for engineers and architects, with practical applications for new constructions worldwide.
Seismic Retrofitting: Learning from Vernacular Architecture
by Humberto Varum Mariana R. Correia Paulo B. LourencoLocal communities have adapted for centuries to challenging surroundings, resulting from unforeseen natural hazards. Vernacular architecture often reveals very intelligent responses attuned to the environment. Therefore, the question that emerged was: how did local populations prepare their dwellings to face frequent earthquakes? It was to respond to this gap in knowledge, that the SEISMIC-V research project was instigated, and this interdisciplinary international publication was prepared. The research revealed the existence of a local seismic culture, in terms of reactive or preventive seismic resistant measures, able to survive, if properly maintained, in areas with frequent earthquakes. The fundamental contribution and aims of the publication were to enhance:-The disciplinary interest in vernacular architecture;-Its contribution to risk mitigation in responding to natural hazards;-To encourage academic and scientific research collaboration among different disciplines;-To contribute to the improvement of vernacular dwellings, which half of the world’s population still inhabits nowadays. Fifty international researchers and experts presented case studies from Latin America, the Mediterranean, Eastern and Central Asia and the Himalayas region, with reference to 20 countries, i.e. Algeria, Bolivia, Bhutan, Chile,China, Egypt, El Salvador, Greece, Haiti, Italy, Japan, Mexico, Morocco, Nepal, Nicaragua, Peru, Romania, Taiwan, Turkey and a closer detailed analysis of Portugal. This publication brings together 43 contributions, with newperspectives on seismic retrofitting techniques and relevant data, addressing vernacular architecture; an amazing source of knowledge, and to this day, home to 4 billion people.
Seismic Risk Assessment and Retrofitting
by Alper Ilki Ercan Yuksel Faruk Karadogan Sumru PalaMany more people are coming to live in earthquake-prone areas, especially urban ones. Many such areas contain low-rise, low-cost housing, while little money is available to retrofit the buildings to avoid total collapse and thus potentially save lives. The lack of money, especially in developing countries, is exacerbated by difficulties with administration, implementation and public awareness. The future of modern earthquake engineering will come to be dominated by new kinds of measuring technologies, new materials developed especially for low-rise, low-cost buildings, simpler and thus lower cost options for retrofitting, cost cutting and raising public awareness. The book covers all the areas involved in this complex issue, from the prevention of total building collapse, through improvement techniques, to legal, financial, taxation and social issues. The contributors have all made valuable contributions in their own particular fields; all of them are or have been closely involved with the issues that can arise in seismic zones in any country. The recent research results published here offer invaluable pointers to practicing engineers and administrators, as well as other scientists whose work involves saving the lives and property of the many millions of people who live and work in hazardous buildings.