Image-Based Damage Assessment for Underwater Inspections
Image-Based Damage Assessment for Underwater Inspections

Author: Michael O’Byrne

Publisher: CRC Press

Published: 2018-07-18

Total Pages: 216

ISBN-13: 1351052578

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Inspection is crucial to the management of ageing infrastructure. Visual information on structures is regularly collected but very little work exists on its organised and quantitative analysis, even though image processing can significantly enhance these inspection processes and transfer real financial and safety benefits to the managers, owners and users. Additionally, new opportunities exist in the fast evolving sectors of wind and wave energy to add value to image-based inspection techniques. This book is a first for structural engineers and inspectors who wish to harness the full potential of cameras as an inspection tool. It is particularly directed to the inspection of offshore and marine structures and the application of image-based methods in underwater inspections. It outlines a set of best practice guidelines for obtaining imagery, then the fundamentals of image processing are covered along with several image processing techniques which can be used to assess multiple damage forms: crack detection, corrosion detection, and depth analysis of marine growth on offshore structures. The book provides benchmark performance measures for these techniques under various visibility conditions using an image repository which will help inspectors to envisage the effectiveness of the techniques when applied. MATLAB® scripts and access to the underwater image repository are included so readers can run these techniques themselves. Practising engineers and managers of infrastructure assets are guided in image processing based inspection. Researchers can use this book as a primer, and it also suits advanced graduate courses in infrastructure management or on applied image processing.

Image-Based Damage Assessment for Underwater Inspections
Image-Based Damage Assessment for Underwater Inspections

Author: Michael O’Byrne

Publisher: CRC Press

Published: 2018-07-18

Total Pages: 238

ISBN-13: 135105256X

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Inspection is crucial to the management of ageing infrastructure. Visual information on structures is regularly collected but very little work exists on its organised and quantitative analysis, even though image processing can significantly enhance these inspection processes and transfer real financial and safety benefits to the managers, owners and users. Additionally, new opportunities exist in the fast evolving sectors of wind and wave energy to add value to image-based inspection techniques. This book is a first for structural engineers and inspectors who wish to harness the full potential of cameras as an inspection tool. It is particularly directed to the inspection of offshore and marine structures and the application of image-based methods in underwater inspections. It outlines a set of best practice guidelines for obtaining imagery, then the fundamentals of image processing are covered along with several image processing techniques which can be used to assess multiple damage forms: crack detection, corrosion detection, and depth analysis of marine growth on offshore structures. The book provides benchmark performance measures for these techniques under various visibility conditions using an image repository which will help inspectors to envisage the effectiveness of the techniques when applied. MATLAB® scripts and access to the underwater image repository are included so readers can run these techniques themselves. Practising engineers and managers of infrastructure assets are guided in image processing based inspection. Researchers can use this book as a primer, and it also suits advanced graduate courses in infrastructure management or on applied image processing.

Report and Recommendations on Underwater Damage Assessment Pier Lima Naval Station, Guantanamo Bay, Cuba
Report and Recommendations on Underwater Damage Assessment Pier Lima Naval Station, Guantanamo Bay, Cuba

Author: MITRE CORP MCLEAN VA JASON PROGRAM OFFICE.

Publisher:

Published: 1979

Total Pages: 105

ISBN-13:

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Structural assessment and repairability of the steel 'H' piles supporting Pier Lima, Naval Station, Guantanamo Bay, Cuba are presented. Field data gathering techniques included visual inspection and measurement, still photography, and underwater television. Areas of inspection included existing pile jackets, detailed underwater inspections of piles, pile-pile cap connections, and the existing fender system. Analysis was conducted using field data and government-furnished information. Scope of work was limited to assessment of piles on singular basis, with pier system comments and conclusions included in general terms. The pier was found to have only approximately half of its original capacity. Re-jacketing most of the piles with concrete jackets, re-securing pile-pile cap connections, and installation of a new fender system and batter piles is recommended as a cost effective repair to bring the pier to approximately 90 percent of its original capacity.

Life Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision
Life Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision

Author: Robby Caspeele

Publisher: CRC Press

Published: 2018-10-31

Total Pages: 3160

ISBN-13: 1351857576

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This volume contains the papers presented at IALCCE2018, the Sixth International Symposium on Life-Cycle Civil Engineering (IALCCE2018), held in Ghent, Belgium, October 28-31, 2018. It consists of a book of extended abstracts and a USB device with full papers including the Fazlur R. Khan lecture, 8 keynote lectures, and 390 technical papers from all over the world. Contributions relate to design, inspection, assessment, maintenance or optimization in the framework of life-cycle analysis of civil engineering structures and infrastructure systems. Life-cycle aspects that are developed and discussed range from structural safety and durability to sustainability, serviceability, robustness and resilience. Applications relate to buildings, bridges and viaducts, highways and runways, tunnels and underground structures, off-shore and marine structures, dams and hydraulic structures, prefabricated design, infrastructure systems, etc. During the IALCCE2018 conference a particular focus is put on the cross-fertilization between different sub-areas of expertise and the development of an overall vision for life-cycle analysis in civil engineering. The aim of the editors is to provide a valuable source of cutting edge information for anyone interested in life-cycle analysis and assessment in civil engineering, including researchers, practising engineers, consultants, contractors, decision makers and representatives from local authorities.

Corrosion and Corrosion Protection of Wind Power Structures in Marine Environments
Corrosion and Corrosion Protection of Wind Power Structures in Marine Environments

Author: Andreas Momber

Publisher: Academic Press

Published: 2024-04-07

Total Pages: 756

ISBN-13: 0323857450

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Corrosion and Corrosion Protection of Wind Power Structures in Marine Environments: Volume 2: Corrosion Protection Measures offers the first comprehensive review on corrosion and corrosion protection of offshore wind power structures. The book extensively discusses corrosion phenomena and corrosion types in different marine corrosion zones, including the modeling of corrosion processes and interactions between corrosion and structural stability. The book addresses important design issues, namely materials selection relevant to their performance in marine environments, corrosion allowance, and constructive design. Active and passive corrosion protection measures are emphasized, with special sections on cathodic corrosion protection and the use of protective coatings. Seawater related issues associated with cathodic protection, such as calcareous deposit formation, hydrogen formation, and fouling, are discussed. With respect to protective coatings, the book considers, for the first time, complete loading scenarios, including corrosive loads, mechanical loads, and special loads, and covers a wide range of coating materials. Problems associated with fouling and bacterial-induced corrosion are extensively reviewed. The book closes with a chapter on recent developments in maintenance strategies, inspection techniques, and repair technologies. The book will be of special interest to materials scientists, materials developers, corrosion engineers, maintenance engineers, civil engineers, steel work designers, mechanical engineers, marine engineers, chemists, and coating specialists. Offshore wind power is an emerging renewable technology and a key factor for a cleaner environment. Offshore wind power structures are situated in a demanding and challenging marine environment. The structures are loaded in a complex way, including mechanical loads and corrosive loads. Corrosion is one of the major limiting factors to the reliability and performance of the technology. Maintenance and repair of corrosion protection systems are particularly laborious and costly. Explores the literature between 1950 and 2020 and contains over 2000 references Offers the most complete monograph on the issue Covers all aspects of corrosion protection in detail, including coatings, cathodic protection, corrosion allowance, constructive design, as well as maintenance and repair Delivers the most complete review on corrosion of metals in marine/offshore environments Focuses on all aspects of offshore wind power structures, namely foundations, towers, internal sections, connection flanges, and transformation platforms

Waterfront Facilities Inspection and Assessment
Waterfront Facilities Inspection and Assessment

Author: Waterfront Inspection Task Committee

Publisher:

Published: 2015

Total Pages: 0

ISBN-13: 9780784413579

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MOP 130 provides engineers with guidelines and tools for inspecting and evaluating the condition of waterfront structures located in seawater and freshwater environments.

Vibration-based Techniques For Damage Detection And Localization In Engineering Structures
Vibration-based Techniques For Damage Detection And Localization In Engineering Structures

Author: Ali Salehzadeh Nobari

Publisher: World Scientific

Published: 2018-05-04

Total Pages: 256

ISBN-13: 178634498X

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In the oil and gas industries, large companies are endeavoring to find and utilize efficient structural health monitoring methods in order to reduce maintenance costs and time. Through an examination of the vibration-based techniques, this title addresses theoretical, computational and experimental methods used within this trend.By providing comprehensive and up-to-date coverage of established and emerging processes, this book enables the reader to draw their own conclusions about the field of vibration-controlled damage detection in comparison with other available techniques. The chapters offer a balance between laboratory and practical applications, in addition to detailed case studies, strengths and weakness are drawn from a broad spectrum of information.