Download or read book Review of Recommendations for Probabilistic Seismic Hazard Analysis written by National Research Council and published by National Academies Press. This book was released on 1997-01-06 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Seismic Hazard and Risk Analysis written by Jack Baker and published by Cambridge University Press. This book was released on 2021-10-21 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seismic hazard and risk analyses underpin the loadings prescribed by engineering design codes, the decisions by asset owners to retrofit structures, the pricing of insurance policies, and many other activities. This is a comprehensive overview of the principles and procedures behind seismic hazard and risk analysis. It enables readers to understand best practises and future research directions. Early chapters cover the essential elements and concepts of seismic hazard and risk analysis, while later chapters shift focus to more advanced topics. Each chapter includes worked examples and problem sets for which full solutions are provided online. Appendices provide relevant background in probability and statistics. Computer codes are also available online to help replicate specific calculations and demonstrate the implementation of various methods. This is a valuable reference for upper level students and practitioners in civil engineering, and earth scientists interested in engineering seismology.

Download or read book Probabilistic Seismic Hazard Assessment PSHA Study written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Introduction to Probabilistic Seismic Hazard Analysis written by J. Paul Guyer, P.E., R.A. and published by Guyer Partners. This book was released on 2020-07-22 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introductory technical guidance for civil, geotechnical and structural engineers interested in earthquake hazard analysis. Here is what is discussed: 1. OVERVIEW OF PROBABILISTIC SEISMIC HAZARD ANALYSIS (PSHA) METHODOLOGY 2. CHARACTERIZING SEISMIC SOURCES FOR PSHA 3. GROUND MOTION ATTENUATION CHARACTERIZATION FOR PSHA 4. TREATMENT OF SCIENTIFIC UNCERTAINTY IN PSHA 5. DEVELOPMENT OF SITE-SPECIFIC RESPONSE SPECTRA FROM PSHA 6. DEVELOPMENT OF ACCELEROGRAMS 7. SUMMARY OF STRENGTHS AND LIMITATIONS OF DSHA AND PSHA.

Download or read book Seismic Hazard and Risk Analysis written by Robin K. McGuire and published by . This book was released on 2004 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the twenty-sixth volume in the Earthquake Engineering Research Institute's series, Connections: The EERI Oral History Series. EERI began this series to preserve the recollections of some of those who have had pioneering careers in the field of earthquake engineering.Mete Sozen (1932-2018) is the Karl H. Kettelhut Distinguished Professor Emeritus of Civil Engineering at Purdue University, Indiana, United States.Besides his academic interest in the development of design codes for concrete structures, Sozen is notable for his contributions to the official post 9/11-government studies of terrorist attacks, including the Oklahoma City bombing, and The Pentagon. Sozen also led a team that created an engineering simulation of American Airlines Flight 11 crashing into the North Tower of the World Trade Center. The computer-animated visualizations were made entirely from the simulation data. He was elected to the National Academy of Engineering in 1977 for contributions to understanding the structural design and behavior of buildings and bridges subjected to earthquake motions.Sozen received his undergraduate education at Robert College (Turkey, 1951) and his master's (1952) and doctoral degrees (1957) from the University of Illinois at Urbana-Champaign.

Download or read book Recommendations for Probabilistic Seismic Hazard Analysis Guidance on Uncertainty and Use of Experts written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Probabilistic Seismic Hazard Analysis (PSHA) is a methodology that estimates the likelihood that various levels of earthquake-caused ground motion will be exceeded at a given location in a given future time period. Due to large uncertainties in all the geosciences data and in their modeling, multiple model interpretations are often possible. This leads to disagreement among experts, which in the past has led to disagreement on the selection of ground motion for design at a given site. In order to review the present state-of-the-art and improve on the overall stability of the PSHA process, the U.S. Nuclear Regulatory Commission (NRC), the U.S. Department of Energy (DOE), and the Electric Power Research Institute (EPRI) co-sponsored a project to provide methodological guidance on how to perform a PSHA. The project has been carried out by a seven-member Senior Seismic Hazard Analysis Committee (SSHAC) supported by a large number other experts. The SSHAC reviewed past studies, including the Lawrence Livermore National Laboratory and the EPRI landmark PSHA studies of the 1980's and examined ways to improve on the present state-of-the-art. The Committee's most important conclusion is that differences in PSHA results are due to procedural rather than technical differences. Thus, in addition to providing a detailed documentation on state-of-the-art elements of a PSHA, this report provides a series of procedural recommendations. The role of experts is analyzed in detail. Two entities are formally defined-the Technical Integrator (TI) and the Technical Facilitator Integrator (TFI)--to account for the various levels of complexity in the technical issues and different levels of efforts needed in a given study.

Download or read book An Overview of the SIGMA Research Project written by Alain Pecker and published by Springer. This book was released on 2017-05-12 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a summary of the important outcomes of the SIGMA project related to all aspects of Probabilistic Seismic Hazard Assessment: source characterization, rock motion characterization, site response characterization, and hazard calculations, with for all of them emphasis on the treatment of uncertainties. In recent years, attempts have been made to identify and quantify uncertainties in seismic hazard estimations for regions with moderate seismicity. These uncertainties, for which no estimation standards exist, create major difficulties and can lead to different interpretations and divergent opinions among experts. To address this matter, an international research project was launched in January 2011, by an industrial consortium composed of French and Italian organizations. This program, named SIGMA (Seismic Ground Motion Assessment) lasted for five years and involved a large number of international institutions. This book is intended for instructors running courses on engineering seismology, graduate students in the same field and practicing engineers involved in Probabilistic Seismic Hazard Analyses.

Download or read book Principles of Probabilistic Seismic Hazard Assessment PSHA and Site Effect Evaluation and Its Application for the Volcanic Environment in El Salvador written by Walter Salazar and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This book chapter explains the fundamental concepts of the probabilistic seismic hazard and site effect evaluation. It is divided into four parts: firstly, the theoretical background of the probabilistic seismic hazard methods is explained to compute the earthquake loads used in structural analysis of buildings, namely, the rigid-zone method, the free-zone methods, and the characteristic models. We emphasize the physical meaning of the seismic coefficient prescribed in the seismic code regulations and its association with the return period of ground motion and spectral ordinates. The interconnection of the return period, the recurrence interval, and the lifetime concepts are explained to clarify misconceptions among these terms in connection with the probability of exceedance of motion. Secondly, the seismic hazard methods are applied employing volcanic chain seismicity data, and preliminary seismic hazard maps for rock site are presented for flat topography conditions along El Salvador. Thirdly, the site effects in terms of the amplification of ground motion are studied using soil profiles characterized by the interbedding of lava flows and volcanic ashes. Finally, we present a summary that highlights the most important concepts explained in this book chapter.

Download or read book Characterization of Modern and Historical Seismic Tsunamic Events and Their Global Societal Impacts written by Y. Dilek and published by Geological Society of London. This book was released on 2021-06-22 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthquakes and tsunamis are devastating geohazards with significant societal impacts. Most recent occurrences have shown that their impact on the stability of nations–societies and the world geopolitics is immense, potentially triggering a tipping point for a major downturn in the global economy. This Special Publication presents the most current information on the causes and effects of some of the modern and historical earthquake–tsunami events, and effective practices of risk assessment–disaster management, implemented by various governments, international organizations and intergovernmental agencies. Findings reported here show that the magnitude of human casualties and property loss resulting from earthquakes–tsunamis are highly variable around the globe, and that increased community, national and global resilience is significant to empower societal preparedness for such geohazards. It is clear that all stakeholders, including scientists, policymakers, governments, media and world organizations must work together to disseminate accurate, objective and timely information on geohazards, and to develop effective legislation for risk reduction and realistic hazard mitigation–management measures in our globally connected world of today.

Download or read book Probabilistic Seismic Hazard Assessment written by Hing-Ho Tsang and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Probabilistic Seismic Hazard Assessment: Direct Amplitude-based Approach" by Hing-ho, Tsang, 曾慶豪, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled "Probabilistic Seismic Hazard Assessment: Direct Amplitude-Based Approach" Submitted by TSANG HING HO for the degree of Doctor of Philosophy at The University of Hong Kong in June 2006 Conventional Probabilistic Seismic Hazard Assessment (PSHA) is difficult to apply in regions whose geological setting (including the location of active faults) is only imperfectly known. Also, for a site-specific PSHA, site effects arising from both crustal rock and overlying soil sediments are generally not assessed rigorously. This thesis demonstrates an alternative procedure for assessing seismic hazard, developed from the conventional Cornell-McGuire PSHA approach, based on considering an infinite number of sources. The proposed new procedure is termed the Direct Amplitude-Based (DAB) approach. A generic analytical solution for the proposed procedure has also been derived in this study, to avoid the need for a lengthy integration process. A site-specific ground motion attenuation model is an important element in seismic hazard assessment. Seismic attenuation behaviour is controlled by a number of wave modification mechanisms, some of which have characteristic specific to a local area or a particular site, while others can be generalised to the entire seismic region. The local seismological parameters include a crustal shear wave velocity (SWV) profile. A comprehensive methodology for modelling the SWV profile in crustal rock has been developed, enabling the amplification mechanisms in the transmission of seismic waves to be estimated. The κ parameter, which characterizes the extent of the near-surface attenuation mechanism in crustal rock, has also been investigated. Empirical correlations of κ with near-surface SWV parameters in crustal rock have been developed. This new modelling approach allows much better seismic hazard assessments to be conducted in regions of low and moderate seismicity. Site effects characterise the filtering mechanisms within the soil sedimentary layers overlying bedrock. A simple, heuristic manual procedure to calculate site amplification factor, site period shift factor and soil damping ratio has been developed. Displacement response spectra (RSD) can then be constructed for soil sites. The proposed model can take into account the nonlinear behaviour of soil that is dependent on the level of shaking, impedance contrast at the soil-bedrock interface and the plasticity of soil materials. Lastly, a case study was carried out, using Hong Kong as an example. SWV information for the four prevalent geological formations found in Hong Kong was first obtained, so as to evaluate the localised near-surface wave modification factors. A ground motion attenuation model was then developed by combining the near-surface modification factors with the regional source function of intra-plate earthquakes. Whilst the ground motion attenuation model was developed, PSHA was performed using the proposed DAB approach. Response spectral values were computed for the whole period range of engineering interest, to form a set of uniform hazard spectra for rock sites in Hong Kong. Site-specific RSD were then constructed for two representative soil and reclamation sites from different parts of Hong Kong. This case study also dealt with the estimation of the lateral building periods. By combining the period estimates with the seismic hazard mode

Download or read book Microearthquake Seismology and Seismotectonics of South Asia written by J.R. Kayal and published by Springer Science & Business Media. This book was released on 2008-08-22 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is the outcome of about 30 years of research in the field of earthquake seismology in various parts of South Asia. It comprehensively deals with topics raning from plate tectonics to seismic waves in general. State-of-the-art techniques in earthquake location/relocation, fault plane solution, waveform inversion, seismic tomography, fractals etc. are discussed, and the results are interpreted in terms of seismic source processes in the region.

Download or read book Earthquake Hazard and Large Dams in the Himalaya written by Vinod Kumar Gaur and published by . This book was released on 1993 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Earthquake Hazard Assessment written by Sreevalsa Kolathayar and published by CRC Press. This book was released on 2018-05-30 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book represents a significant contribution to the area of earthquake data processing and to the development of region-specific magnitude correlations to create an up-to-date homogeneous earthquake catalogue that is uniform in magnitude scale. The book discusses seismicity analysis and estimation of seismicity parameters of a region at both finer and broader levels using different methodologies. The delineation and characterization of regional seismic source zones which requires reasonable observation and engineering judgement is another subject covered. Considering the complex seismotectonic composition of a region, use of numerous methodologies (DSHA and PSHA) in analyzing the seismic hazard using appropriate instruments such as the logic tree will be elaborated to explicitly account for epistemic uncertainties considering alternative models (for Source model, Mmax estimation and Ground motion prediction equations) to estimate the PGA value at bedrock level. Further, VS30 characterization based on the topographic gradient, to facilitate the development of surface level PGA maps using appropriate amplification factors, is discussed. Evaluation of probabilistic liquefaction potential is also explained in the book. Necessary backgrounds and contexts of the aforementioned topics are elaborated through a case study specific to India which features spatiotemporally varied and complex tectonics. The methodology and outcomes presented in this book will be beneficial to practising engineers and researchers working in the fields of seismology and geotechnical engineering in particular and to society in general.

Download or read book Advanced Seismic Hazard Assessment written by Giuliano Panza and published by Birkhäuser. This book was released on 2011-05-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues pertaining to urban risks are a pressing concern for those involved in disasters mitigation. Development of effective mitigation strategies requires sound seismic hazard information that is commonly derived through a seismic hazard assessment (SHA). The purpose of SHA is to provide a scientifically consistent estimate of seismic hazard for engineering design and other considerations. The time is ripe to move beyond the old paradigms of the traditional Probabilistic Seismic Hazard Analysis (PSHA). This two-part volume advocates advanced methods for SHA that utilize up to date earthquake science and basic scientific principles to derive the seismic hazard in terms of a ground motion or related quantity and its occurrence frequency at a site, as well as the associated uncertainty. It aims to: (1) identify the issues in the current SHAs, (2) facilitate the development of a scientifically consistent approach for SHA and (3) disseminate, both in scientific and in engineering practice societies, advanced reliable tools for independent hazard estimates, like NDSHA (neo-deterministic SHA), which incorporates physically based ground motion models. It provides a fresh approach to seismic hazard analysis. Part 2 provides advanced SHA case studies, concerning regional national and metropolitan estimates for different parts of the world, including Asia, Europe, North and South America. It is addressed to seismologists, engineers and stake-holders, and aims to contribute to bridging between modern interdisciplinary research and practitioners.

Download or read book Geotechnical and Environmental Geophysics Environmental and groundwater written by Stanley H. Ward and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Earthquake Hazard Risk and Disasters written by Rasoul Sorkhabi and published by Academic Press. This book was released on 2014-06-16 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthquake Hazard, Risk, and Disasters presents the latest scientific developments and reviews of research addressing seismic hazard and seismic risk, including causality rates, impacts on society, preparedness, insurance and mitigation. The current controversies in seismic hazard assessment and earthquake prediction are addressed from different points of view. Basic tools for understanding the seismic risk and to reduce it, like paleoseismology, remote sensing, and engineering are discussed. Contains contributions from expert seismologists, geologists, engineers and geophysicists selected by a world-renowned editorial board Presents the latest research on seismic hazard and risk assessment, economic impacts, fatality rates, and earthquake preparedness and mitigation Includes numerous illustrations, maps, diagrams and tables addressing earthquake risk reduction Features new insights and reviews of earthquake prediction, forecasting and early warning, as well as basic tools to deal with earthquake risk

Download or read book Fundamentals of Earthquake Resistant Construction written by Ellis L. Krinitzsky and published by John Wiley & Sons. This book was released on 1993-01-12 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written for engineers without a background in seismic design. Provides design standards and parameters, explaining how to interpret and apply them. Examines and recommends procedures to accommodate the enormous forces and variations in effects common to major earthquakes. Covers practical aspects of soil behavior and structural and foundation design. Gives tips on special construction situations: foundations, dams and retaining walls, strengthening existing structures and construction over active faults.