Method for plane sectional building hull

Abstract

A planar segmenting method for building a hull of ship features that each segment which is building is supported by a continuous lattice frame instead of the quincuncial array of piles. Its advantages are no damage to hull, simplified technological process and high productivity.

Description

Technical field: [0001] The invention relates to a method for building a hull, in particular to a method for building planar sections of a hull. Background technique: [0002] Due to the huge size of the ship, the hull cannot be built as a whole. The hull can only be divided into several blocks for construction. These blocks are called sections. Inside the sections, there are structures such as ribs, girders and pipes. These structures need to be welded and installed. Therefore, during the construction of the segments, tire frames are required to support the segments, and these tire frames must be able to maintain the shape of the segments, thereby ensuring the accuracy of the segmented construction. In the past, the plane sections were all constructed on the frame of plum blossom piles. The plum blossom piles are arranged in a dot matrix, that is, a pile is erected at regular intervals vertically, horizontally or obliquely on the ground. These piles are usually made of angl...

AI Technical Summary

Problems solved by technology

[0003] When the planar segmented bottom plate is placed on the tire frame, due to the small stress area, the pile top and the bottom plate are easy to slide, so the bottom plate and the pile must be fixed by spot welding, and the segment and the tire are cut off after the construction of the segment The connection point of the frame, and repair welding and grinding the position of the original connection point, making the segmented bottom plate unsightly, and at the same time, due to the local high temperature of the repair welding, the microstructure of the bottom plate is uneven, and the corrosion resistance of the hull is reduced. At the same time, The flatness of the top of the plum blossom pile is destroyed. Before the next section is built, the flatness of the tire frame must be inspected, measured, and the horizontal line must be redrawn.

With this construction method, there are a large number of batching, repairing, and grinding operations for each section built. Before each section is built, the tire frame needs to be measured and corrected, which seriously hinders the improvement of production efficiency and is not conducive to improving Surface quality and corrosion resistance of hull

In addition, due to the need for spot welding, the height of the tire frame must be kept between 0.8 meters and 1.2 meters. This height is relatively high, and production safety is affected.

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