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Author : Alexis Ostapenko
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (46 download)
Download or read book Area One written by Alexis Ostapenko and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alexis Ostapenko
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (34 download)
Download or read book Residual Strength of Damaged and Deterioriated Offshore Structures written by Alexis Ostapenko and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "Ultimate capacity and the post-ultimate residual strength of axially-loaded damaged (dented and/or bent) and deteriorated (corroded) tubular members were studied by conducting tests on eleven salvaged, seven fabricated and two small-scale manufactured column specimens. The nominal (specified minimum) yield stress of the specimens was either 36 or 50 ksi. The salvaged and fabricated specimens had lengths ranging from 22 to 35.4 feet and mid-thickness diameters ranging from 10.4 to 24.5 inches. The specimens had diameter-to-thickness ratios ranging from 28 to 95. All fabricated and small-scale manufactured specimens and four salvaged specimens were dented at mid-length with the dent depth varying from 5% to 15% of the diameter. Of these specimens, two were tested with fixed-ends, two with end eccentricity and nine with pinned ends. Comparison of the tests on the salvaged seamless specimens and the fabricated cold-rolled and welded specimens indicated that residual stresses apparently had little effect on the ultimate strength and the post-ultimate behavior of dented tubular columns. The seven remaining salvaged specimens were tested without denting, and of these, three were corroded, one was badly bent, and three were straight and had no corrosion and thus served as indicators of the original pre-damage strength. Several methods were used to analyze the tested specimens. Comparison with test results indicated that the analytical methods could relatively accurately predict the ultimate strength for dented and undented columns, but were conservative in estimating their post-ultimate behavior. These methods were also suitable for uniformly corroded specimens. However, the behavior of the two specimens with localized corrosion which failed by local buckling could not be predicted by these methods. A limited study was made of an approach for evaluating the effect of localized (patch) corrosion on local buckling and reduction of member strength."
Author : Alexis Ostapenko
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (46 download)
Download or read book Supplement to Area One written by Alexis Ostapenko and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "The moment-thrust-curvature (M-P-[phi]) relationship of grout-repaired dented tubular sections was studied by deriving formulas as functions of the level of deformation. Both materials, steel and concrete, were assumed to have bi-linear elastic-plastic stress-strain relationships except that the grout had no strength in tension and that its post-ultimate strain was limited by the crushing strain. Moreover, it was assumed that the strain distribution in the cross section was planar and that the axial strains in the steel shell and the grout core were fully compatible. By varying the location of the neutral axis and the value of curvature, the relationship between the axial load and curvature could be defined for a given load eccentricity. The ultimate load was given by the peak of the resultant curve. The method was applied to analyze six grouted test specimens: three dented and three undented. The resultant ultimate loads were compared with the test loads and the loads according to the formula proposed by Parsanejad. The method tended to give somewhat higher ultimate loads than the test loads. The method was then used to compute the ultimate loads for seven specimens planned in the testing program proposed for future research. A FORTRAN computer program was written to facilitate the iterative computations involved in the method."
Author : John D. Wood
Publisher :
ISBN 13 :
Total Pages : 71 pages
Book Rating : 4.:/5 (34 download)
Download or read book Residual Strength of Damaged and Deteriorated Offshore Structures written by John D. Wood and published by . This book was released on 1993 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "The structural integrity of offshore oil platforms is of concern because of the possible loss of life and ecological damage that may occur with a structural failure. Therefore, the platforms are nondestructively inspected on a periodic basis. Inspection of the platforms by conventional methods, such as, ultrasonic and magnetic particle testing, is a very labor intensive and costly procedure. Acoustic emission (AE) monitoring is a nondestructive test method that may reduce the cost of offshore evaluation of platforms. This report examines the AE characteristics of various stressed structural steels to determine the feasibility of utilizing the AE monitoring method for offshore applications. In this study, structural columns salvaged from offshore oil platforms as well as newly fabricated columns were tested. With the aid of long column, stub-column and four-point bend specimens, it has been shown that structural steels used for offshore applications exhibit bursts of acoustic emissions from the spalling of the brittle surface layers at the initiation of yielding. Therefore, overloading of a damaged column may be identified with the AE technique. The location of a damaged area on structural columns has also been successfully identified by utilizing the time of arrival analysis and triangulation methods."
Author : Phillip Tirabosco
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (22 download)
Download or read book Damage and Residual Strength of Tubular Steel Members Used in Offshore Structures written by Phillip Tirabosco and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dhruba J. Ghose
Publisher :
ISBN 13 :
Total Pages : 160 pages
Book Rating : 4.:/5 (329 download)
Download or read book Residual Strength of Damaged Marine Structures written by Dhruba J. Ghose and published by . This book was released on 1994 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John V. Sharp
Publisher : John Wiley & Sons
ISBN 13 : 1119633818
Total Pages : 368 pages
Book Rating : 4.1/5 (196 download)
Download or read book Underwater Inspection and Repair for Offshore Structures written by John V. Sharp and published by John Wiley & Sons. This book was released on 2021-04-06 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: UNDERWATER INSPECTION AND REPAIR FOR OFFSHORE STRUCTURES Benefit from a much-needed, up-to-date handbook on underwater inspection and repair processes and technologies Underwater Inspection and Repair for Offshore Structures fills a gap in the literature to provide an overview of the inspection and repair processes for both steel and concrete offshore structures. Authors and noted experts on the topic John V. Sharp and Gerhard Esdal guide readers through the reasons why inspection and repair are performed and how both are linked to the management of structural integrity, statutory requirements, and various types of damage. The book addresses critical topics, including the execution and planning of inspection and repair, the tools and methods used, and their deployment underwater. The authors put particular focus on steel and concrete offshore oil and gas installations, but the content is also applicable to the substructures of offshore wind turbines. Underwater Inspection and Repair for Offshore Structures is complementary to the authors’ book Ageing and Life Extension of Offshore Structures, also from Wiley. This important book: Covers current inspection and monitoring techniques to evaluate existing structures Includes coverage of robotic (ROV) inspection and repair methods Provides an overview of repair and maintenance techniques applicable to the splash‐zone and underwater operations Written for engineers, designers, and safety auditors working with offshore structures. Underwater Inspection and Repair for Offshore Structures is a comprehensive resource for understanding how to effectively inspect and repair these vulnerable structures.
Author : Wayne A. Dunlap
Publisher :
ISBN 13 :
Total Pages : 260 pages
Book Rating : 4.3/5 (5 download)
Download or read book Assessment and Requalification of Offshore Production Structures written by Wayne A. Dunlap and published by . This book was released on 1993 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Theodore V. Galambos
Publisher : John Wiley & Sons
ISBN 13 : 9780471127420
Total Pages : 952 pages
Book Rating : 4.1/5 (274 download)
Download or read book Guide to Stability Design Criteria for Metal Structures written by Theodore V. Galambos and published by John Wiley & Sons. This book was released on 1998-06-15 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides simplified and refined procedures applicable to design and to accessing design limitations and offers guidance to design specifications, codes and standards currently applied to the stability of metal structures.
Author :
Publisher :
ISBN 13 :
Total Pages : 730 pages
Book Rating : 4.3/5 (91 download)
Download or read book Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering written by and published by . This book was released on 2002 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Science Foundation (U.S.). Civil Infrastructure Systems Task Group
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.3/5 (555 download)
Download or read book Civil Infrastructure Systems Research written by National Science Foundation (U.S.). Civil Infrastructure Systems Task Group and published by . This book was released on 1993 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J K Paik
Publisher : Elsevier
ISBN 13 : 1845695216
Total Pages : 552 pages
Book Rating : 4.8/5 (456 download)
Download or read book Condition Assessment of Aged Structures written by J K Paik and published by Elsevier. This book was released on 2014-01-23 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: Any structural system in service is subject to age-related deterioration, leading to potential concerns regarding maintenance, health & safety, environmental and economic implications. Condition assessment of aged structures is an invaluable, single source of information on structural assessment techniques for marine and land-based structures such as ships, offshore installations, industrial plant and buildings. Topics covered include: - Current practices and standards for structural condition assessment - Fundamental mechanisms and advanced mathematical methods for predicting structural deterioration - Residual strength assessment of deteriorated structures - Inspection and maintenance of aged structures - Reliability and risk assessment of aged structures Professionals from a broad range of disciplines will be able to gain a better understanding of current practices and standards for structural condition assessment or health monitoring, and what future trends might be. Single source of information on structural assessment techniques for marine and land-based structures Examines the residual strength and reliability of aged structures Assesses current practices covering inspection, health monitoring and maintenance
Author : Ashok Gupta
Publisher : Springer Science & Business Media
ISBN 13 : 364282899X
Total Pages : 312 pages
Book Rating : 4.6/5 (428 download)
Download or read book Fatigue Behaviour of Offshore Structures written by Ashok Gupta and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: and Literature Rev iew Chapter 1 1. INTRODUCTION AND LITERATURE REVIEW The exploration for oil and gas in ever increasing water depths has given an impetus to research efforts on the behaviour of offshore structures under ocean environment. These structures are continuously subjected to environmental loading because of waves, wind and current. A response analysis is required to assess the safety of offshore structure under severe storm conditions as well as for estimation of damage caused by less severe but more frequently occuring sea states. A majority of the reported failures in the life time of offshore structures are in fact fatigue failures. The offshore structures are usually built in the form of welded tubular structures. The joints of these tubular members experience the fatigue damage mainly due to small defects in welding which act as crack initiators, high stress concentrations and the variable loads. The variable loads due to the ocean waves cause cyclic stress variation in the structural members and the accumu lated effect of these stresses results in the fatigue failure.
Author : Chryssostomos Chryssostomidis
Publisher : Pergamon
ISBN 13 : 9780080419152
Total Pages : 560 pages
Book Rating : 4.4/5 (191 download)
Download or read book Boss '94, Behaviour of Offshore Structures written by Chryssostomos Chryssostomidis and published by Pergamon. This book was released on 1994 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Marine Technology Support Unit
Publisher :
ISBN 13 :
Total Pages : 198 pages
Book Rating : 4.3/5 (5 download)
Download or read book Offshore Safety Research and Development Programme written by Marine Technology Support Unit and published by . This book was released on 1993 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : P. Thoft-Christensen
Publisher : Springer Science & Business Media
ISBN 13 : 3642838286
Total Pages : 432 pages
Book Rating : 4.6/5 (428 download)
Download or read book Reliability and Optimization of Structural Systems ’88 written by P. Thoft-Christensen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present book contains 30 papers presented at the 2nd Working Conference on Reliability and Optimization of Structural Systems. The purpose of the Working Group was - to promote modern structural system optimization and reliability theory, - to advance international cooperation in the field of structural system optimization and reliability theory, - to stimulate research, development and application of structural system optimization and reliability theory, - to further the dissemination and exchange of information on reliability and optimization of structural system optimization and reliability theory, - to encourage education in structural system optimization and reliability theory.
Author : Jeom Kee Paik
Publisher : Cambridge University Press
ISBN 13 : 1316519600
Total Pages : 569 pages
Book Rating : 4.3/5 (165 download)
Download or read book Ship-Shaped Offshore Installations written by Jeom Kee Paik and published by Cambridge University Press. This book was released on 2022-02-17 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understand the safe engineering of ship-shaped offshore installations with this fully updated second edition.
