New PDF release: Advanced marine structures

By Srinivasan Chandrasekaran

ISBN-10: 1498739709

ISBN-13: 9781498739702

Due partly to a becoming call for for offshore oil and gasoline exploration, the improvement of marine buildings that at first all started onshore is now entering into deeper offshore parts. Designers are learning a necessity to revisit uncomplicated strategies as they count on the reaction habit of marine buildings to elevated water depths. supplying a simplified method of the topic, complex Marine constructions explains the Read more...

summary: Due partly to a transforming into call for for offshore oil and fuel exploration, the improvement of marine buildings that in the first place begun onshore is now getting into deeper offshore parts. Designers are researching a necessity to revisit uncomplicated suggestions as they count on the reaction habit of marine constructions to elevated water depths. supplying a simplified method of the topic, complex Marine constructions explains the basics and complex ideas of marine structure introduces a variety of forms of offshore systems, and descriptions the various phases of marine constitution research and layout

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In such kinds of structural geometry, it is inevitable that the platform weight is dominant. To improve the installing features and decommissioning procedures, the geometry attempts to be buoyancy dominant instead of weight dominant (buoyancy force exceeds the weight by manifold). While this enables easy fabrication and installation, it also demands skilled labor and high expertise for installation and commissioning of such platforms. , 2009). 6 Tension Leg Platforms A tension leg platform (TLP) is a vertically moored compliant platform.

Basic dimensions of the helipad on the platform deck depends on the overall length of the helicopter; usually a circular pad of diameter equal to the overall length of the helicopter is considered for the design. The heliport landing area must be large enough to handle loading and unloading comfortably. Provision is generally made on the deck to enable a slant take-off of helicopters. A typical offshore helicopter is some 24 m × 24 m to 49 m × 49 m in size. The offshore deck should be designed for a helicopter load in one of two ways.

Estimating (predicting) ice forces on offshore platforms has a lot of uncertainties. Ice forces often control the design of the platform, particularly in operational conditions. The design ice loads use varying factors for level ice, first-year ridge ice, and multiyear ridge ice; the factored values are 2, 5, and 7, respectively. 10 SEISMIC LOADS Offshore platforms that do not have a stiff connection with the seabed are indirectly influenced by earthquakes; those that are bottom-supported are affected by earthquakes directly.

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Advanced marine structures by Srinivasan Chandrasekaran


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