Fatigue Behaviour of Concrete in Offshore Concrete Structures
Fatigue Behaviour of Concrete in Offshore Concrete Structures

Author: José Ignacio Carrera Masiá

Publisher:

Published: 2013

Total Pages:

ISBN-13:

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Offshore Engineering is a track that is growing up considerably during last decades. Offshore wind turbines, oil platforms and other projects situated on the sea are good examples of marine constructions. These types of structures are normally subjected to cyclic loads that may produce significant changes in the properties of the material during the life of the structure. This effect is also known as fatigue. Fatigue is a process of progressive and permanent structural change occurring in a material which is subjected to loads which produce time fluctuating stresses and strains. In offshore structures, the fatigue damage is more important because the special conditions of the sea and the marine environment that may accelerate the degradation of the structure. The thesis deals with the response of prestressed concrete elements subjected to fatigue damage in marine environment. A review of the most important codes for calculating the fatigue damage is presented, comparing several requirements and regulations. Finally, a methodology for calculating the fatigue damage in offshore concrete structures is proposed, considering corrosion and the mechanical response of the structure.

Fatigue Behaviour of Offshore Structures
Fatigue Behaviour of Offshore Structures

Author: Ashok Gupta

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 312

ISBN-13: 364282899X

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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.

Design of Offshore Concrete Structures
Design of Offshore Concrete Structures

Author: O.T. Gudmestad

Publisher: CRC Press

Published: 2000-08-03

Total Pages: 233

ISBN-13: 0203478258

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Written by experienced professionals, this book provides a state-of-the-art account of the construction of offshore concrete structures, It describes the construction process and includes: *concept definition*project management,*detailed design and quality assurance *simplified analyses and detailed design

Fatigue and Fracture Mechanics of Offshore Structures
Fatigue and Fracture Mechanics of Offshore Structures

Author: Naveen Patniak

Publisher: Scitus Academics LLC

Published: 2016

Total Pages: 0

ISBN-13: 9781681173719

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The fatigue phenomenon process in structural elements and connections. The tubular welded joints used in the construction of offshore structures can experience millions of variable amplitude load cycles during their service life. Such fatigue loading represents a main cause of degradation in these structures. As a result, fatigue is an important consideration in their design. Fatigue and Fracture Mechanisms of Offshore Structures present novel research and the results of wave-induced stress on the operational life of offshore structures. Increasing oil consumption in the world and scarcity of land-oil resources due to political and economical reasons has caused offshore oil exploration and production to become a growing investigation field in the past six decades. The analysis of structures to use energy deposits and other recourses, or for other purposes, in ocean environments requires a special consideration since environmental and loading conditions offshore are very complicated and contain large uncertainties. Offshore structures are continuously subjected to random ocean waves producing stochastic loads that cause mainly fatigue failure in structural components.