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Author : Gabriele Comanducci
Publisher :
Page : 0 pages
File Size : 46,48 MB
Release :
Category :
ISBN :
Author : You Lin Xu
Publisher : CRC Press
Page : 393 pages
File Size : 16,1 MB
Release : 2011-08-31
Category : Technology & Engineering
ISBN : 0415597935
Long span suspension bridges cost billions. In recent decades, structural health monitoring systems have been developed to measure the loading environment and responses of these bridges in order to assess serviceability and safety while tracking the symptoms of operational incidents and potential damage. This helps ensure the bridge functions properly during a long service life and guards against catastrophic failure under extreme events. Although these systems have achieved some success, this cutting-edge technology involves many complex topics that present challenges to students, researchers, and engineers alike. Systematically introducing the fundamentals and outlining the advanced technologies for achieving effective long-term monitoring, Structural Health Monitoring of Long-Span Suspension Bridges covers: The design of structural health monitoring systems Finite element modelling and system identification Highway loading monitoring and effects Railway loading monitoring and effects Temperature monitoring and thermal behaviour Wind monitoring and effects Seismic monitoring and effects SHMS-based rating method for long span bridge inspection and maintenance Structural damage detection and test-bed establishment These are applied in a rigorous case study, using more than ten years' worth of data, to the Tsing Ma suspension bridge in Hong Kong to examine their effectiveness in the operational performance of a real bridge. The Tsing Ma bridge is the world's longest suspension bridge to carry both a highway and railway, and is located in one of the world’s most active typhoon regions. Bridging the gap between theory and practice, this is an ideal reference book for students, researchers, and engineering practitioners.
Author : Yang Deng
Publisher : Springer
Page : 243 pages
File Size : 39,81 MB
Release : 2018-12-19
Category : Technology & Engineering
ISBN : 9811333475
This book presents extensive information on structural health monitoring for suspension bridges. During the past two decades, there have been significant advances in the sensing technologies employed in long-span bridge health monitoring. However, interpretation of the massive monitoring data is still lagging behind. This book establishes a series of measurement interpretation frameworks that focus on bridge site environmental conditions, and global and local responses of suspension bridges. Using the proposed frameworks, it subsequently offers new insights into the structural behaviors of long-span suspension bridges. As a valuable resource for researchers, scientists and engineers in the field of bridge structural health monitoring, it provides essential information, methods, and practical algorithms that can facilitate in-service bridge performance assessments.
Author : Matthew Thomas Yarnold
Publisher :
Page : 856 pages
File Size : 19,64 MB
Release : 2013
Category : Civil engineering
ISBN :
Temperature-based methods for the structural evaluation and monitoring of long-span bridges were investigated. The motivation for the work stemmed from the critical need for further assessment and preservation techniques for long-span bridges, which represent the most critical (and in many cases irreplaceable) nodes within the transportation network. Through this work, several methods were developed which utilize temperature as the forcing function to experimentally characterize the structure. This approach is novel and represents a potential improvement over current methods (e.g. ambient vibration monitoring) which do not allow the full transfer function of the bridge to be obtained. In particular, this research developed and investigated three temperature-based evaluation methods. The first, termed Temperature-Based Structural Identification (TBSI), follows from the traditional structural identification framework. This approach is used for direct correlation of the input (temperature) and output responses (strains and displacements) for finite element (FE) model calibration and parameter identification. The second method, termed Temperature-Based Structural Health Monitoring (TBSHM), utilizes a streamlined approach to continually track and identify variations in key temperature-based response patterns. An interpretation framework using changes in these patterns to guide proactive maintenance and preservation practices was also developed. The last method, termed Periodic Temperature-Based Assessment (PTBA), aims to directly (i.e. without the use of an FE model or baseline information) characterize the performance of key mechanisms of a bridge by measuring physically meaningful and easily interpreted response metrics. The research concluded temperature-based experimentation provides valuable insight into the performance of long-span bridges. TBSI exhibits accurate and reliable identification of FE model boundary and continuity conditions with clear advantages over ambient vibration model updating. The use of TBSHM has also indicated encouraging contributions to conventional SHM approaches. A distinct baseline was identified as the relationship between local strains, global displacements, and temperature variation which produces unique planes in 3D space. These 3D planes have greater sensitivity to parameter modification when compared to ambient vibration methods and show promise for identification of outliers. Additionally, quantitative performance measures were developed for PTBA of long-span bridges. This approach can improve current evaluate methods of movement mechanisms and assess long-term durability of a structure. Overall, TBSI, TBSHM, and PTBA have shown substantial benefits for advancing our understanding of constructed long-span bridge behavior.
Author : Jinsuk Yim
Publisher :
Page : 300 pages
File Size : 39,76 MB
Release : 2009
Category :
ISBN :
Author : Cecilia Surace
Publisher : Mdpi AG
Page : 344 pages
File Size : 22,20 MB
Release : 2021-11-23
Category : Technology & Engineering
ISBN : 9783036524047
The thirty-plus years of progress in the field of structural health monitoring (SHM) have left a paramount impact on our everyday lives. Be it for the monitoring of fixed- and rotary-wing aircrafts, for the preservation of the cultural and architectural heritage, or for the predictive maintenance of long-span bridges or wind farms, SHM has shaped the framework of many engineering fields. Given the current state of quantitative and principled methodologies, it is nowadays possible to rapidly and consistently evaluate the structural safety of industrial machines, modern concrete buildings, historical masonry complexes, etc., to test their capability and to serve their intended purpose. However, old unsolved problematics as well as new challenges exist. Furthermore, unprecedented conditions, such as stricter safety requirements and ageing civil infrastructure, pose new challenges for confrontation. Therefore, this Special Issue gathers the main contributions of academics and practitioners in civil, aerospace, and mechanical engineering to provide a common ground for structural health monitoring in dealing with old and new aspects of this ever-growing research field.
Author : Helmut Wenzel
Publisher : John Wiley & Sons
Page : 652 pages
File Size : 14,31 MB
Release : 2008-11-20
Category : Technology & Engineering
ISBN : 0470740183
Health Monitoring of Bridges prepares the bridge engineering community for the exciting new technological developments happening in the industry, offering the benefit of much research carried out in the aerospace and other industrial sectors and discussing the latest methodologies available for the management of bridge stock. Health Monitoring of Bridges: Includes chapters on the hardware used in health monitoring, methodologies, applications of these methodologies (materials, methods, systems and functions), decision support systems, damage detection systems and the rating of bridges and methods of risk assessment. Covers both passive and active monitoring approaches. Offers directly applicable methods and as well as prolific examples, applications and references. Is authored by a world leader in the development of health monitoring systems. Includes free software that can be downloaded from http://www.samco.org/ and provides the raw data of benchmark projects and the key results achieved. This book provides a comprehensive guide to all aspects of the structural health monitoring of bridges for engineers involved in all stages from concept design to maintenance. It will also appeal to researchers and academics within the civil engineering and structural health monitoring communities.
Author : Raffaele Zinno
Publisher : MDPI
Page : 288 pages
File Size : 50,74 MB
Release : 2021-09-02
Category : Technology & Engineering
ISBN : 303650754X
In the past, when elements in structures were composed of perishable materials, such as wood, the maintenance of houses, bridges, etc., was considered of vital importance for their safe use and to preserve their efficiency. With the advent of materials such as reinforced concrete and steel, given their relatively long useful life, periodic and constant maintenance has often been considered a secondary concern. When it was realized that even for structures fabricated with these materials that the useful life has an end and that it was being approached, planning maintenance became an important and non-negligible aspect. Thus, the concept of structural health monitoring (SHM) was introduced, designed, and implemented as a multidisciplinary method. Computational mechanics, static and dynamic analysis of structures, electronics, sensors, and, recently, the Internet of Things (IoT) and artificial intelligence (AI) are required, but it is also important to consider new materials, especially those with intrinsic self-diagnosis characteristics, and to use measurement and survey methods typical of modern geomatics, such as satellite surveys and highly sophisticated laser tools.
Author : Alfredo Güemes
Publisher : DEStech Publications, Inc
Page : 1458 pages
File Size : 11,19 MB
Release : 2006
Category : Medical
ISBN : 9781932078633
These proceedings of the Third European Workshop on Structural Health Monitoring held at the Conference Centre in Granada, Spain, in July of 2006 includes four keynote presentations and 170 technical papers written by an international group of contributors. Papers discuss technology and activities related to damage detection and evaluation in engin
Author : Hiroshi Yokota
Publisher : CRC Press
Page : 926 pages
File Size : 34,29 MB
Release : 2021-04-20
Category : Technology & Engineering
ISBN : 1000173755
Bridge Maintenance, Safety, Management, Life-Cycle Sustainability and Innovations contains lectures and papers presented at the Tenth International Conference on Bridge Maintenance, Safety and Management (IABMAS 2020), held in Sapporo, Hokkaido, Japan, April 11–15, 2021. This volume consists of a book of extended abstracts and a USB card containing the full papers of 571 contributions presented at IABMAS 2020, including the T.Y. Lin Lecture, 9 Keynote Lectures, and 561 technical papers from 40 countries. The contributions presented at IABMAS 2020 deal with the state of the art as well as emerging concepts and innovative applications related to the main aspects of maintenance, safety, management, life-cycle sustainability and technological innovations of bridges. Major topics include: advanced bridge design, construction and maintenance approaches, safety, reliability and risk evaluation, life-cycle management, life-cycle sustainability, standardization, analytical models, bridge management systems, service life prediction, maintenance and management strategies, structural health monitoring, non-destructive testing and field testing, safety, resilience, robustness and redundancy, durability enhancement, repair and rehabilitation, fatigue and corrosion, extreme loads, and application of information and computer technology and artificial intelligence for bridges, among others. This volume provides both an up-to-date overview of the field of bridge engineering and significant contributions to the process of making more rational decisions on maintenance, safety, management, life-cycle sustainability and technological innovations of bridges for the purpose of enhancing the welfare of society. The Editors hope that these Proceedings will serve as a valuable reference to all concerned with bridge structure and infrastructure systems, including engineers, researchers, academics and students from all areas of bridge engineering.