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Light composite structure jacket type offshore platform

A combined structure and offshore platform technology, applied in underwater structures, infrastructure engineering, construction, etc., can solve the problems of component loss of bearing capacity, vibration comfort, durability, impact resistance and fire resistance, and overall structural damage and other problems, to achieve the effect of large overall bearing capacity and stiffness, good impact resistance, and improved local buckling performance

Active Publication Date: 2013-07-10
TSINGHUA UNIV
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

However, the problem faced by hollow steel pipe members is that members are more likely to lose bearing capacity due to local buckling, which leads to the destruction of the overall structure.
There are different degrees of defects in the vibration comfort, durability, impact resistance and fire resistance of the platform composed of empty steel pipe members

Method used

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  • Light composite structure jacket type offshore platform
  • Light composite structure jacket type offshore platform
  • Light composite structure jacket type offshore platform

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Embodiment Construction

[0027] The present invention provides a jacket-type offshore platform structure with a light composite structure. The structure and specific implementation methods of the present invention will be further described below in conjunction with the embodiments and accompanying drawings.

[0028] figure 1 It is a schematic diagram of the platform structure of the embodiment of the present invention, and the platform structure is composed of a platform frame 1 of a light composite structure and a platform 5 welded thereto, wherein the platform frame 1 is composed of a 4-leg platform main pole 2, a platform brace 3 and a platform cross Support 4 forms. The main rod 2 of the platform is composed of light steel-concrete composite members connected by welding along the length direction. The specific structure is: the inner steel pipe 202 is placed in the outer steel pipe 201 and is coaxial with the outer steel pipe 201, and the space between the outer steel pipe 201 and the inner steel ...

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Abstract

The invention belongs to the field of structural engineering in civil engineering, in particular to a light composite structure jacket type offshore platform. The offshore platform comprises a light composite structure platform frame and a platform welded with the same. The platform frame comprises 3-8 platform main rods and a plurality of platform cross arms connected among the platform main rods. Platform oblique arms are disposed among adjacent platform main rods, the platform and the platform cross arms. Each platform main rod comprises an inner steel pipe and an outer steel pipe, and concrete is filled between the inner steel pipe and the outer steel pipe. Mutual action between steel and concrete is considered, and advantages of composite structure is fully utilized. Compared with traditional jacket type offshore platforms, the light composite structure jacket type offshore platform is better in performance, simple to construct, good in economical performance, and applicable to various offshore platform constructions such as drilling platforms, workover platforms and wind power generation platforms.

Description

technical field [0001] The invention belongs to the field of structural engineering in civil engineering, and in particular relates to a jacket-type offshore platform with a light composite structure. Background technique [0002] my country's sea areas are rich in oil and gas resources. With the continuous expansion of energy demand for economic construction, my country's offshore oil and gas exploration and development has good development prospects and huge development potential. Offshore oil and gas drilling platforms are offshore structures used for subsea oil and gas exploration and exploitation, and can also be used for oil storage, living facilities, and docks. At present, the drilling and production of offshore oil and gas are mainly concentrated in the continental shelf area, and the water depth generally does not exceed 300m. The platform type that is more commonly used in this water depth is the jacket platform. [0003] The traditional jacket-type offshore pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B17/00
Inventor 李威韩林海
Owner TSINGHUA UNIV
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