Download or read book Seismic Collapse Risk Assessment of Buildings written by Laura Eads and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Life safety and collapse prevention have always been primary goals of earthquake engineering. Although the collapse risk of structures has not been explicitly quantified until recently, interest in doing so has risen significantly. A primary reason for this is the advent of performance-based earthquake engineering, which considers uncertainties in the seismic hazard and structural response and seeks to engineer structures that will achieve a desired level of performance in terms of expected monetary losses, downtime and casualties. Collapse risk assessment of a structure involves combining information about the seismic hazard at the site with the behavior of the structure. Typically an intensity measure (IM) is used to describe the level of ground motion shaking and quantify the seismic hazard. The behavior of the structure is then characterized through nonlinear response history analysis by subjecting the structure to many different ground motions at various intensity levels. A collapse fragility curve, which describes how the probability of collapse increases as a function of the ground motion intensity, is constructed based on analysis results and combined with the seismic hazard curve to compute the mean annual frequency of collapse. This dissertation focuses on evaluating the effects of IM selection and computational approach on the computed collapse risk, and contributions are made in the following areas: (1) quantifying the uncertainty in the collapse risk estimate due to the number of ground motions used in structural analysis; (2) characterizing the ability of different IMs to efficiently predict structural collapse and provide reliable estimates of the collapse risk; (3) explaining why certain IMs perform better than others with respect to the previous point; and (4) because the spectral acceleration averaged over a period range has been identified as a promising IM for collapse risk assessment, providing recommendations on the period ranges that maximize the efficiency of this IM as a function of structural properties.

Download or read book Why Do Buildings Collapse in Earthquakes written by Robin Spence and published by John Wiley & Sons. This book was released on 2021-07-20 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn from the personal experience and insights of leading earthquake engineering specialists as they examine the lessons from disasters of the last 30 years and propose a path to earthquake safety worldwide Why Do Buildings Collapse in Earthquakes?: Building for Safety in Seismic Areas delivers an insightful and comprehensive analysis of the key lessons taught by building failures during earthquakes around the world. The book uses empirical evidence to describe the successes of earthquake engineering and disaster preparedness, as well as the failures that may have had tragic consequences. Readers will learn what makes buildings in earthquake zones vulnerable, what can be done to design, build and maintain those buildings to reduce or eliminate that vulnerability, and what can be done to protect building occupants. Those who are responsible for the lives and safety of building occupants and visitors - architects, designers, engineers, and building owners or managers - will learn how to provide adequate safety in earthquake zones. The text offers useful and accessible answers to anyone interested in natural disasters generally and those who have specific concerns about the impact of earthquakes on the built environment. Readers will benefit from the inclusion of: A thorough introduction to how buildings have behaved in earthquakes, including a description of the world’s most lethal earthquakes and the fatality trend over time An exploration of how buildings are constructed around the world, including considerations of the impact of climate and seismicity on home design A discussion of what happens during an earthquake, including the types and levels of ground motion, landslides, tsunamis, and sequential effects, and how different types of buildings tend to behave in response to those phenomena What different stakeholders can do to improve the earthquake safety of their buildings The owners and managers of buildings in earthquake zones and those responsible for the safety of people who occupy or visit them will find Why Do Buildings Collapse in Earthquakes? Building for Safety in Seismic Areas essential reading, as will all architects, designers and engineers who design or refurbish buildings in earthquake zones.

Download or read book Seismic Risk Assessment and Retrofitting written by Alper Ilki and published by Springer Science & Business Media. This book was released on 2009-10-03 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many 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.

Download or read book Seismic Reliability Assessment of Structures Incorporating Modeling Uncertainty and Implications for Seismic Collapse Safety written by Beliz Ugurhan Gokkaya and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Advancements in nonlinear dynamic simulation, seismic hazard analysis, and performance-based earthquake engineering are enabling more scientific assessment of structural collapse risk and how the risk is controlled by building code design requirements. Although current collapse assessment methods carefully account for the nonlinear response of structures, most of these analyses do not explicitly capture model uncertainties associated with variability in the structural properties and response characteristics of components. Instead, modeling uncertainties are typically considered through simplified assumptions and techniques. This dissertation focuses on modeling uncertainty in seismic performance assessment and implications on seismic collapse safety of structures. A statistical framework assessing model parameter correlations from component tests is proposed for characterizing the modeling parameters that define dynamic response at a component level and the interactions of multiple uncertain components in structural systems. The framework is illustrated using a dataset that is composed of over two-hundred tests of reinforced concrete columns. Statistics of the model parameters are established including the correlation structure of the inelastic model parameters, both within a component and between different components. The analyses show that model parameters within structural components tend to be only mildly correlated, whereas there are strong correlations between like parameters of different components within a building. Uncertainty propagation methods, including Monte-Carlo simulation-based, moment-based and surrogate (response surface and neural network) methods, are assessed for probabilistic assessment of collapse risk. To reduce computational demand of collapse risk assessment, a Bayesian approach is proposed and demonstrated using a reinforced concrete archetype building. The results emphasize the sensitivity of collapse response to modeling uncertainties and the challenges of balancing of computational efficiency and robust uncertainty characterization. Impacts of modeling uncertainty are evaluated for fragility functions and mean annual exceedance rates for drift limits and collapse for thirty-three reinforced concrete archetype building configurations. Modeling uncertainty is shown to have considerable impacts on collapse risk. Inclusion of modeling uncertainty is shown to increase the mean annual frequency of collapse by about 1.7 times, as compared to analyses based on median model parameters, for a high-seismic site in California. Modeling uncertainty has a smaller effect on drift demands at levels usually considered in building codes. A novel method is introduced to relate drift demands to collapse safety through a joint distribution of deformation demand and capacity, taking into account simulated instances of collapse and no-collapse. This method enables linking seismic performance goals specified in building codes to drift limits and other acceptance criteria. The distributions of drift demand at maximum considered earthquake level and drift capacity of case study structures are compared with drift limits as specified in the proposed seismic criteria for the next edition (2016) of ASCE 7.

Download or read book Seismic Vulnerability of Structures written by Philippe Gueguen and published by John Wiley & Sons. This book was released on 2013-03-05 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is focused on the seismic vulnerability assessment methods, applied to existing buildings, describing several behaviors and new approaches for assessment on a large scale (urban area). It is clear that the majority of urban centers are composed of old buildings, designed according to concepts and rules that are inadequate to the seismic context. How to assess the vulnerability of existing buildings is an essential step to improve the management of seismic risk and its prevention policy. After some key reminders, this book describes seismic vulnerability methods applied to a large number of structures (buildings and bridges) in moderate (France, Switzerland) and strong seismic prone regions (Italy, Greece). Contents 1. Seismic Vulnerability of Existing Buildings: Observational and Mechanical Approaches for Application in Urban Areas, Sergio Lagomarsino and Serena Cattari. 2. Mechanical Methods: Fragility Curves and Pushover Analysis, Caterina Negulescu and Pierre Gehl. 3. Seismic Vulnerability and Loss Assessment for Buildings in Greece, Andreas J. Kappos. 4. Experimental Method: Contribution of Ambient Vibration Recordings to the Vulnerability Assessment, Clotaire Michel and Philippe Guéguen. 5. Numerical Model: Simplified Strategies for Vulnerability Seismic Assessment of Existing Structures, Cédric Desprez, Panagiotis Kotronis and Stéphane Grange. 6. Approach Based on the Risk Used in Switzerland, Pierino Lestuzzi. 7. Preliminary Evaluation of the Seismic Vulnerability of Existing Bridges, Denis Davi. About the Authors Philippe Guéguen is a Senior IFSTTAR Researcher at ISTerre, Joseph Fourier University Grenoble 1, France

Download or read book Encyclopedia of Earthquake Engineering written by Michael Beer and published by Springer. This book was released on 2016-01-30 with total page 3953 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Seismic Hazard and Risk Assessment written by Radu Vacareanu and published by Springer. This book was released on 2018-03-21 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 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.

Download or read book Seismic Risk Assessment and Design of Building Structures written by A. Koridze and published by . This book was released on 1988 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Seismic Performance Assessment of Buildings Implementation guide written by and published by . This book was released on 2018 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Seismic Performance Assessment of Buildings written by Applied Technology Council and published by . This book was released on 2012 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rapid Visual Screening of Buildings for Potential Seismic Hazards Supporting Documentation written by and published by Government Printing Office. This book was released on 2015 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Rapid Visual Screening (RVS) handbook can be used by trained personnel to identify, inventory, and screen buildings that are potentially seismically vulnerable. The RVS procedure comprises a method and several forms that help users to quickly identify, inventory, and score buildings according to their risk of collapse if hit by major earthquakes. The RVS handbook describes how to identify the structural type and key weakness characteristics, how to complete the screening forms, and how to manage a successful RVS program.

Download or read book Handbook of Seismic Risk Analysis and Management of Civil Infrastructure Systems written by S Tesfamariam and published by Elsevier. This book was released on 2013-04-30 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthquakes represent a major risk to buildings, bridges and other civil infrastructure systems, causing catastrophic loss to modern society. Handbook of seismic risk analysis and management of civil infrastructure systems reviews the state of the art in the seismic risk analysis and management of civil infrastructure systems.Part one reviews research in the quantification of uncertainties in ground motion and seismic hazard assessment. Part twi discusses methodologies in seismic risk analysis and management, whilst parts three and four cover the application of seismic risk assessment to buildings, bridges, pipelines and other civil infrastructure systems. Part five also discusses methods for quantifying dependency between different infrastructure systems. The final part of the book considers ways of assessing financial and other losses from earthquake damage as well as setting insurance rates.Handbook of seismic risk analysis and management of civil infrastructure systems is an invaluable guide for professionals requiring understanding of the impact of earthquakes on buildings and lifelines, and the seismic risk assessment and management of buildings, bridges and transportation. It also provides a comprehensive overview of seismic risk analysis for researchers and engineers within these fields. - This important handbook reviews the wealth of recent research in the area of seismic hazard analysis in modern earthquake design code provisions and practices - Examines research into the analysis of ground motion and seismic hazard assessment, seismic risk hazard methodologies - Addresses the assessment of seismic risks to buildings, bridges, water supply systems and other aspects of civil infrastructure

Download or read book Seismic Risk Assessment of Buildings written by Khan Shahzada and published by LAP Lambert Academic Publishing. This book was released on 2012-04 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the seismic risk assessment of existing buildings based on hazard and vulnerability assessment. Hazard maps have been developed and vulnerability assessment of buildings was made by collecting inventory data and experimental study of typical existing buildings. Fragility curves for different types of buildings including single and double stories unreinforced brick masonry and concrete block masonry buildings, single, double and three stories confined brick masonry buildings, and double stories reinforced concrete buildings by using advanced capacity spectrum method (ACSM). Seismic risk has been established for all these buildings from hazard maps and corresponding fragility curves. The seismic risk determined from the hazard maps and fragility curves has been compared with the seismic risk calculated by using MAEviz software developed by Mid America Earthquake (MAE) Centre. It was found that Seismic risk for collapse prevention level is highest for unreinforced concrete block masonry buildings and similarly the seismic risk for confined brick masonry buildings is least. It was also concluded that the seismic risk for reinforced concrete buildings is minimum.

Download or read book Assessing Seismic Collapse Safety of Modern Reinforced Concrete Moment frame Buildings written by Curt B. Haselton and published by . This book was released on 2008 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Towards resilient non engineered construction written by UNESCO and published by UNESCO Publishing. This book was released on 2016-12-08 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Resilient Structures and Infrastructure written by Ehsan Noroozinejad Farsangi and published by Springer. This book was released on 2019-05-03 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses resilience in terms of structures’ and infrastructures’ responses to extreme loading conditions. These include static and dynamic loads such as those generated by blasts, terrorist attacks, seismic events, impact loadings, progressive collapse, floods and wind. In the last decade, the concept of resilience and resilient-based structures has increasingly gained in interest among engineers and scientists. Resilience describes a given structure’s ability to withstand sudden shocks. In other words, it can be measured by the magnitude of shock that a system can tolerate. This book offers a valuable resource for the development of new engineering practices, codes and regulations, public policy, and investigation reports on resilience, and provides broad and integrated coverage of the effects of dynamic loadings, and of the modeling techniques used to compute the structural response to these loadings.

Download or read book Assessing and Managing Earthquake Risk written by Carlos Sousa Oliveira and published by Springer Science & Business Media. This book was released on 2007-12-04 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: * Multidisciplinary approach of risk assessment and management, which can provide more efficient earthquake mitigation. * Transfer of Geo-scientific and engineering knowledge to Civil Protection and insurance agents * Approaches and common practices directly related to the preparation of earthquake emergency plans * Illustrated examples of actual applications, including web sites * Case-studies and information on relevant international projects