Download or read book Building Seismic Monitoring and Detection Technology written by Junwen Zhang and published by CRC Press. This book was released on 2023-09-25 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: Building Seismic Monitoring and Detection Technology focuses on the research of seismic resistance and monitoring technology. The book gathers cutting-edge research and achievements, and includes contributions on the following subjects: New concepts and key technologies of structural regulation and disaster prevention Test and monitoring study of thermal insulation in tunnels Protection of steel and concrete structures using arc thermal spray Research progress of mechanical metamaterials This book is aiming at scholars and engineers involved or interested in structural engineering and seismic detection technology.

Download or read book Building Seismic Monitoring and Detection Technology written by Junwen Zhang and published by CRC Press. This book was released on 2023-09-18 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt: Building Seismic Monitoring and Detection Technology focuses on the research of seismic resistance and monitoring technology. The book gathers cutting-edge research and achievements, and includes contributions on the following subjects: New concepts and key technologies of structural regulation and disaster prevention Test and monitoring study of thermal insulation in tunnels Protection of steel and concrete structures using arc thermal spray Research progress of mechanical metamaterials This book is aiming at scholars and engineers involved or interested in structural engineering and seismic detection technology.

Download or read book Earthquakes and Health Monitoring of Civil Structures written by Mihail Garevski and published by Springer Science & Business Media. This book was released on 2012-12-11 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Health monitoring of civil structures (HMS) is a new discipline, which contributes to successful and on time detection of damages to structures. This book is a collection of chapters on different topics written by leading scientists in the field. It is primarily focused on the latest achievements in monitoring the earthquake effect upon the health of civil structures. The first chapter of the book deals with the geotechnical and structural aspects of the 2010-2011 Christchurch earthquakes. Further chapters are dedicated to the latest HMS techniques of identification of damage to structures caused by earthquakes. Real time damage detection as well as sensors and acquisition systems used for that purpose are presented. The attention is focused on automated modal analysis, dynamic artificial neural networks and wavelet techniques used in HMS. Particular emphasis is put on wireless sensors and piezo-impendance transducers used for evaluation of seismically induced structural damage. The discussion is followed by presentation of case studies of application of health monitoring for buildings and other civil structures, including a super tall structure. The book ends with a presentation of shaking table tests on physical models for the purpose of monitoring their behaviour under earthquake excitation. Audience The book is primarily intended for engineers and scientists working in the field of application of the HMS technique in earthquake engineering. Considering that real time health monitoring of structures represents a sophisticated approach applying the latest techniques of monitoring of structures, many experts from other industries will also find this book useful.

Download or read book Seismic Structural Health Monitoring written by Maria Pina Limongelli and published by Springer. This book was released on 2019-04-24 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book includes a collection of state-of-the-art contributions addressing both theoretical developments in, and successful applications of, seismic structural health monitoring (S2HM). Over the past few decades, Seismic SHM has expanded considerably, due to the growing demand among various stakeholders (owners, managers and engineering professionals) and researchers. The discipline has matured in the process, as can be seen by the number of S2HM systems currently installed worldwide. Furthermore, the responses recorded by S2HM systems hold great potential, both with regard to the management of emergency situations and to ordinary maintenance needs. The book’s 17 chapters, prepared by leading international experts, are divided into four major sections. The first comprises six chapters describing the specific requirements of S2HM systems for different types of civil structures and infrastructures (buildings, bridges, cultural heritage, dams, structures with base isolation devices) and for monitoring different phenomena (e.g. soil-structure interaction and excessive drift). The second section describes available methods and computational tools for data processing, while the third is dedicated to hardware and software tools for S2HM. In the book’s closing section, five chapters report on state-of-the-art applications of S2HM around the world.

Download or read book Advances in Civil Engineering Structural Seismic Resistance Monitoring and Detection written by Mohd Johari Mohd Yusof and published by CRC Press. This book was released on 2022-10-21 with total page 787 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Civil Engineering: Structural Seismic Resistance, Monitoring and Detection is a collection of papers resulting from the conference on Structural Seismic Resistance, Monitoring and Detection (SSRMD 2022), Harbin, China, 21–23 January, 2022. According to the development of many new seismic theories, technologies and products, the primary goal of this conference is to promote research and developmental activities in structural seismic resistance, monitoring and detection. Moreover, another goal is to promote scientific information interchange between scholars from the top universities, business associations, research centers and high-tech enterprises working all around the world. The conference conducted in-depth exchanges and discussions on relevant topics such as structural seismic resistance, monitoring and detection, aiming to provide an academic and technical communication platform for scholars and engineers engaged in scientific research and engineering practice in the field of civil engineering, seismic resistance and engineering entity structure testing. By sharing the research status of scientific research achievements and cutting-edge technologies, it helps scholars and engineers all over the world to comprehend the academic development trend and broaden research ideas. So as to strengthen international academic research, academic topics exchange and discussion, and promoting the industrialization cooperation of academic achievements.

Download or read book Advances in Seismic Event Location written by Cliffort H. Thurber and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Seismic Event Location provides a broad overview of the fundamental issues involved in seismic event location, and presents a variety of state-of-the-art location methods and applications at a wide range of spatial scales. Three important themes in the book are: seismic monitoring for a Comprehensive Nuclear-Test-Ban Treaty (CTBT), seismic event location in three-dimensional Earth models, and methods for multiple-event location. Each chapter contains background material to help readers less familiar with the topics covered, as well as to provide abundant references for readers interested in probing deeper into a topic. However, most of the emphasis is on recent advances in methodology and their application. Audience: The book is intended primarily for academic and professional researchers and graduate students in seismology.

Download or read book Improved Seismic Monitoring Improved Decision Making written by National Research Council and published by National Academies Press. This book was released on 2006-01-04 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Improved Seismic Monitoringâ€"Improved Decision-Making, describes and assesses the varied economic benefits potentially derived from modernizing and expanding seismic monitoring activities in the United States. These benefits include more effective loss avoidance regulations and strategies, improved understanding of earthquake processes, better engineering design, more effective hazard mitigation strategies, and improved emergency response and recovery. The economic principles that must be applied to determine potential benefits are reviewed and the report concludes that although there is insufficient information available at present to fully quantify all the potential benefits, the annual dollar costs for improved seismic monitoring are in the tens of millions and the potential annual dollar benefits are in the hundreds of millions.

Download or read book A Seismic Monitoring and Alarm system in Real Time SMART for Intelligent Structures written by Stanford University. Department of Civil Engineering. Blume Earthquake Engineering Center and published by . This book was released on 1992 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Seismic Isolation Structural Health Monitoring and Performance Based Seismic Design in Earthquake Engineering written by Azer A. Kasimzade and published by Springer. This book was released on 2018-08-13 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 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.

Download or read book Wind Resistant Design of Bridges in Japan written by Yozo Fujino and published by Springer Science & Business Media. This book was released on 2012-02-28 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: For long-span bridges, wind action is a dominant factor in their safety and serviceability. A large number of long-span bridges have been built in Japan over the past 30 years, and tremendous amounts of research and technical development have been accomplished in wind-resistant design. This book is a compilation of the results of active research and development. Wind-resistant design standards generated in Japan are described in the first few chapters. Then comes information such as design wind speed, structural damping, wind tunnel tests, and analyses, which provide the basis of the design standards. Wind-induced vibrations and their control of girders, towers, cables, and other features are explained with examples of field measurements. Comprehensive listings of Japanese experience in vibration control are also presented. Because achieving particularly dynamic safety against wind is still not an easy task, these data and information will be valuable assets for the wind-engineering and bridge-engineering communities.

Download or read book Smart Civil Structures written by You-Lin Xu and published by CRC Press. This book was released on 2017-04-11 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: A smart civil structure integrates smart materials, sensors, actuators, signal processors, communication networks, power sources, diagonal strategies, control strategies, repair strategies, and life-cycle management strategies. It should function optimally and safely in its environment and maintain structural integrity during strong winds, severe earthquakes, and other extreme events. This book extends from the fundamentals to the state-of-the-art. It covers the elements of smart civil structures, their integration, and their functions. The elements consist of smart materials, sensors, control devices, signal processors, and communication networks. Integration refers to multi-scale modelling and model updating, multi-type sensor placement, control theory, and collective placement of control devices and sensors. And the functions include structural health monitoring, structural vibration control, structural self-repairing, and structural energy harvesting, with emphasis on their synthesis to form truly smart civil structures. It suits civil engineering students, professionals, and researchers with its blend of principles and practice.

Download or read book Sensor Technologies for Civil Infrastructures written by Jerome P. Lynch and published by Woodhead Publishing. This book was released on 2022-07-19 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sensor Technologies for Civil Infrastructure, Volume 2: Applications in Structural Health Monitoring, Second Edition, provides an overview of sensor applications and a new section on future and emerging technologies. Part one is made up of case studies in assessing and monitoring specific structures such as bridges, towers, buildings, dams, tunnels, pipelines, and roads. The new edition also includes sensing solutions for assessing and monitoring of naval systems. Part two reviews emerging technologies for sensing and data analysis including diagnostic solutions for assessing and monitoring sensors, unmanned aerial systems, and UAV application in post-hazard event reconnaissance and site assessment. Includes case studies in assessing structures such as bridges, buildings, super-tall towers, dams, tunnels, wind turbines, railroad tracks, nuclear power plants, offshore structures, naval systems, levees, and pipelines Reviews future and emerging technologies and techniques including unmanned aerial systems, LIDAR, and ultrasonic and infrared sensing Describes latest emerging techniques in data analysis such as diagnostic solutions for assessing and monitoring sensors and big data analysis

Download or read book Real time Structural Health Monitoring Using Machine Learning Algorithm written by Haozhi Tan and published by . This book was released on 2018 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 2010–2012 Canterbury earthquakes, the 2013 Cook Strait earthquakes and the 2016 Kaikoura earthquake highlighted that damaging earthquake scenarios are very real and they can occur at anytime and anywhere in New Zealand. It is desirable to ascertain and track the structural performance and integrity for buildings for public safety and emergency management. Seismic instrumentation has often been promoted as the solution to this requirement. Real-time Structural Health Monitoring (SHM) algorithms in a seismic instrumentation system continuously translate structural monitoring data into building state prediction. The overall goal of this study was to evaluate and improve the current damage detection algorithms implemented in civil structures, which made real-time SHM possible. The aim was to improve occupant safety and accelerate the rate of recovery for individual buildings, and by extension improved community resilience to extreme events. A key issue influencing the performance of the current algorithms is varying operational and environmental conditions. This project studied a year’s worth of instrumented building data from the GNS Science building in Lower Hutt, with the aim of evaluating the influence of different environmental conditions on predicted building motion and corresponding dynamic characteristics, including building acceleration amplitudes and modal frequencies. The environmental conditions considered were temperature, wind speed, relative humidity and human activity. The results of the analysis demonstrated operational and environmental conditions have a noticeable effect on building dynamic properties estimation. In 2016, the CentrePort BNZ building suffered severe damage to its structural members and its non-structural members as a result of the 2016 Mw 7.8 Kaikoura earthquake. Coincidently, extensive non-structural damage also occurred in this building in the 2013 Cook Strait earthquakes. The recorded earthquake response of the CentrePort BNZ building during the two earthquakes was analysed to gain a comprehensive understanding of the building dynamic responses during earthquakes. A damage detection algorithm using autoregressive (AR) models with Mahalanobis squared distance (MSD) was applied to the instrumented building data for two years of data. It successfully detected the change in building damage state correlating to actual observations due to the two earthquakes. A parametric study was conducted to consider the effect of AR orders and exceedance probability on an optimum threshold for signalling damage in MSD-based damage detection algorithms. The results indicated that both factors are important parameters affecting the - ii - detection accuracy of the algorithm. Besides, this algorithm detected damage accurately under varying operational and environmental effects. A new damage detection method called the MSDAANN algorithm was proposed based on combining MSD and auto-associative neural network (AANN) approaches. The performance of the proposed algorithm was evaluated using data from the ASCE benchmark structure and through an analysis of receiver operating curves (ROCs). The results showed that the proposed MSD-AANN algorithm performed better than MSD-based algorithm or AANN-based algorithm. In addition, proposed MSD-AANN algorithm is selfcalibrated, it can be automatically applied to datasets and obtained damage detection results in a very short time with high accuracy even when the structure was operating under varying operational and environmental conditions. These represent improvements beyond current solutions and present great potential for real-time SHM applications. Microsoft Azure Machine Learning Studio (MLS) is a powerful machine learning tool, with which data scientists and developers can quickly build, test, and develop predictive models using state-of-the-art machine learning algorithms. But the effective application of machine learning algorithms in SHM applications remains a challenge for researchers. A parametric study of a cloud-based machine learning damage detection algorithm using two-class boosted decision tree was therefore conducted to investigate the effects of input length and the number of sensors on damage detection accuracy of a cloud-based machine learning algorithm. To facilitate a comparison, an MSD-based damage detection algorithm was also applied to the same data sets. The parametric study showed that both input data length and sensor numbers greatly affected the damage detection accuracy. The detection accuracy of both cloud-based machine learning and MSD-based algorithms increased when more data was used. More data in this instance means greater length of input data or longer time-duration preceding a prediction. Cloud-based machine learning algorithm was more accurate than traditional MSD algorithm for the same input data length. Moreover, cloud-based machine learning algorithm reached to 80% of detection accuracy using only 160-second of input data which there is a significant proof of concept and achievement towards real-time damage detection in a real-world SHM scenario. The parametric analysis also found that only three sensors, located at the top, middle, and bottom of the building, were sufficient to achieve over 85% damage detection accuracy when cloud-based machine learning algorithm was used. For 90% accurate damage detection, the cloud-based machine learning algorithm required 10 minutes of input data. Accounting for 2-minute computation time, it meant that 90% accurate damage prediction for a very complex building could be achieved within 12 minutes. The cloud-based machine learning algorithm, therefore, have great potential for achieving very near real-time damage detection. - iii - Significant contributions of this work include (i) understanding how varying operational and environmental conditions affect building response measurements; (ii) demonstrating successful time-critical damage detection in a real-world building damaged in two major earthquakes using MSD-based damage detection algorithm; (iii) providing a framework to guide the selection of input parameters when using MSD-based damage detection algorithm; (iv) proposing a novel real-time MSD-AANN damage detection algorithm that is more accurate and faster than traditional algorithms. (v) introducing a cloud-based machine learning algorithm which utilises Microsoft Azure Machine Learning Studio (MLS) to execute damage detection processes.

Download or read book Empirical Seismic Vulnerability and Resilience Assessment of Building Clusters written by Si-Qi Li and published by Elsevier. This book was released on 2024-03-18 with total page 623 pages. Available in PDF, EPUB and Kindle. Book excerpt: Empirical Seismic Vulnerability and Resilience Assessment of Building Clusters analyzes the seismic vulnerability analysis of four types of structures and studies and discusses the evaluation of structural damage using risk analysis and shaking table test methods. It does not consider the contribution of typical empirical structural seismic damage data to structural vulnerability assessment and prediction. It is recognized that the impact of earthquakes on large-scale areas is extensive, not only on a building but also on a group of buildings. The book is based on the research background of typical seismic damage characteristics of 11 types of engineering structures. It analyzes the characteristics of the vulnerability of various structures and provides measures and methods to improve the vulnerability of various structures. Combined with probability risk, reliability, machine learning, and other means, vulnerability prediction and evaluation models are established, respectively, and the rationality of the models is verified by hundreds of onsite earthquake damage survey data. Increases engineers' theoretical and practical knowledge of field investigation to help improve their efficiency and the quality of future work Includes the analysis of hundreds of earthquake field survey data Provides a vulnerability assessment of diversified structural experience

Download or read book International Handbook of Earthquake Engineering Seismology Part A written by William H.K. Lee and published by Elsevier. This book was released on 2002-09-27 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern scientific investigations of earthquakes began in the 1880s, and the International Association of Seismology was organized in 1901 to promote collaboration of scientists and engineers in studying earthquakes. The International Handbook of Earthquake and Engineering Seismology, under the auspices of the International Association of Seismology and Physics of the Earth's Interior (IASPEI), was prepared by leading experts under a distinguished international advisory board and team of editors.The content is organized into 56 chapters and includes over 430 figures, 24 of which are in color. This large-format, comprehensive reference summarizes well-established facts, reviews relevant theories, surveys useful methods and techniques, and documents and archives basic seismic data. It will be the authoritative reference for scientists and engineers and a quick and handy reference for seismologists.Also available is The International Handbook of Earthquake and Engineering Seismology, Part B.

Download or read book Energy and Water Development Appropriations for 1996 Department of Energy fiscal year 1996 budget justifications written by United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development and published by . This book was released on 1995 with total page 2690 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy and Water Development Appropriations for 1996 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development and published by . This book was released on 1995 with total page 2698 pages. Available in PDF, EPUB and Kindle. Book excerpt: