Hull and large-scale topside module connecting structure of four-upright floating platform

A floating platform and connecting structure technology, applied in floating buildings, special-purpose ships, ships, etc., can solve the problems of increased construction cost, large fatigue life, heavy weight of upper modules, etc., to reduce the size of pillars and improve fatigue Life, the effect of reducing stress concentration
CN108639265AActive Publication Date: 2018-10-12CHINA NAT OFFSHORE OIL CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA NAT OFFSHORE OIL CORP
Publication Date
2018-10-12

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Abstract

The invention relates to a hull and large-scale topside module connecting structure of a four-upright floating platform. The hull and large-scale topside module connecting structure comprises hull uprights, decks, deck main girders, main supporting columns and secondary supporting columns. The hull uprights are fixedly connected with the decks through the main supporting columns, the secondary supporting columns and the deck main girders; the decks comprise upper deck layers and lower deck layers; the deck main girders are horizontally arranged between the main supporting columns and the secondary supporting columns; the upper surfaces of the deck main girders are fixedly connected with the lower deck layers, and the lower surfaces of the deck main girders are fixedly connected with the top faces of the hull uprights; the lower portions of the main supporting columns and the secondary supporting columns immerge in the hull uprights and are fixedly connected with the hull uprights; theupper portions of the main supporting columns and the secondary supporting columns are fixedly connected with the upper deck layers and the lower deck layers; and inclined struts are obliquely upwardsarranged on the main supporting columns, and the top ends of the inclined struts are fixedly connected with the upper deck layers.
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Description

technical field

[0001] The invention relates to an ocean engineering floating platform, in particular to a connection structure between a hull of a four-column floating platform and a large upper module. Background technique

[0002] With the needs of my country's offshore oil and gas development, more and more floating platforms have begun to move from research to engineering implementation, and the scale of the platform is also increasing with the output of oil and gas fields. The four-column floating platform is a relatively mature platform form in the world. It is resistant to typhoons, has good movement, and has a balanced bearing weight. It is also one of the important facilities for offshore oil and gas exploitation in my country.

[0003] For the four-pillar floating platform, the connection structure between the upper module and the hull is an important component related to the safety of the platform structure, and it is also the core basis for the safe operation of...

Claims

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