Cross bracing utilized in semi-submerged platform construction and semi-submerged platform construction method

Abstract

The invention relates to a semi-submerged platform construction method and a cross bracing utilized in semi-submerged platform construction. The cross bracing is used for being connected between a port floater and a starboard floater of a lower hull and comprises a truss type cross bracing main body, first hinge seats and second hinge seats. The truss type cross bracing main body is provided with a first end and a second end, the first end is provided with first hinge parts, and the second end is provided with second hinge parts; the first hinge seats are used for being arranged on the port floater and hinged to the first hinge parts; the second hinge seats are used for being arranged on the starboard floater and hinged to the second hinge parts. According to the semi-submerged platform construction method and the cross bracing utilized in the semi-submerged platform construction, by means of the truss type cross bracing body and due to the fact that the port floater and the starboard floater are connected as a whole in a hinged mode, the folding operation during the semi-submerged platform construction is simple and easy, and after the folding operation is completed, the cross bracing can be easily removed by removing the hinges, so that the operation of carbon gouging and polishing on the connection positions of the hull can be effectively avoided, and the construction costs can be reduced.

Description

technical field [0001] The invention relates to the technical field of semi-submersible platform construction, in particular to a semi-submersible platform construction method and a cross brace used in the semi-submersible platform construction. Background technique [0002] The application number is "201010111292.8", the announcement number is "CN102145734A", and the invention name is "Integral Closing Method for Semi-submersible Drilling Platform". The hull can be well transported into the dock and positioned underground. However, in the actual construction of the semi-submersible platform, the lower hull has a double-floating body structure, that is, the lower hull is composed of two floating bodies on the left and starboard sides, and there is no cross brace connection between the floating bodies on the left and starboard sides. The lower hull is independently launched and floated, so the structure without cross braces has an impact on the relative position positioning ...

AI Technical Summary

Problems solved by technology

However, in the actual construction of the semi-submersible platform, the lower hull has a double-floating body structure, that is, the lower hull is composed of two floating bodies on the left and starboard sides, and there is no cross brace connection between the floating bodies on the left and starboard sides. The lower hull is independently launched and floated, so the structure without cross braces has an impact on the relative position positioning and the stability of independent floating during the assembly process of the left and starboard buoys, such as launching and closing, especially when the lower hull of the platform is single. When the side floating body is not stable enough to float alone, the scheme of integrating the two modules of the upper hull and the lower hull of the platform cannot be realized

If temporary cross braces are added and the connection between the added temporary cross braces and the two floating bodies is in the form of a traditional welded connection structure, after the platform assembly is completed and the cross braces are removed, it is necessary to carry out carbon planing, grinding and paint repairs on the connection positions. working hours work

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