Design method for narrow area structure of ship

Abstract

The invention discloses a design method for a narrow area structure of a ship, and the method specifically comprises the following steps: S1, determining the minimum distance between a sharp corner of the narrow area and a longitudinal bone of a main deck, and determining the minimum distance between the sharp corner of the narrow area and the longitudinal bone on an inclined plate or a curved surface; s2, when the minimum value of the minimum distance between the sharp corner of the narrow area and the longitudinal bone of the main deck and the minimum distance between the sharp corner of the narrow area and the longitudinal bone on the inclined plate or the curved surface is smaller than 350 mm, the longitudinal bone at the uppermost end of the inclined plate or the curved surface is replaced with a transverse toggle plate; s3, the connection sizes of the transverse toggle plate and the longitudinal bone of the main deck and the longitudinal bone on the inclined plate or the curved surface are determined; and the transverse toggle plate is mounted in a narrow area. Longitudinal ribs are replaced by the transverse toggle plates, so that the welding complexity of a narrow area of a ship is reduced, a curved surface profile is omitted, the length of a welding seam is reduced, and the production cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of ship construction, and in particular relates to a design method for a narrow area structure of a ship. Background Art

[0002] During the shipbuilding process, welding work in the narrow area of ​​the ship is one of the welding difficulties. When the distance between the platform longitudinals closest to the sharp corners of the narrow area of ​​the ship and the longitudinals on the bevel plate or curved surface is too close, it increases the difficulty of the welder's construction operation, resulting in poor welding quality of the structure and affecting the structural strength. Therefore, a new structural design method for the narrow area of ​​the ship is needed to solve the welding difficulties caused by the existing structure. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art and provide a design method for a ship's narrow area structure. The present invention replaces the longitudinal bones with transverse brackets, reduces the welding complexity in the narrow area of ​​the ship, eliminates the curved profiles, reduces the weld length, and reduces the production cost.

[0004] In order to achieve the above invention purpose, the technical solution provided by the present invention is as follows:

[0005] A design method for a narrow area structure of a ship, the method specifically comprising the following steps:

[0006] S1, determine the minimum distance between the sharp corners of the narrow area and the longitudinals of the main deck, and determine the minimum distance between the sharp corners of the narrow area and the longitudinals on the inclined plate or curved surface;

[0007] S2: When the minimum distance between the narrow area corner and the longitudinal of the main deck and the minimum distance between the narrow area corner and the longitudinal on the inclined plate or curved surface is less than 350mm, the longitudinal on the uppermost end of the inclined plate or curved surface shall be replaced by a transverse bracket;

[0008] S3, determine the connection dimensions of the transverse brackets with the longitudinals and inclined plates or longitudinals on the curved surface of the main deck; install the transverse brackets in a narrow area.

[0009] Furthermore, the longitudinal bones of the main deck are angle steels, bulb flat steels or T-rows.

[0010] Furthermore, the longitudinal bones on the bevel plate or the curved surface are angle steels, bulb flat steels or T-rows.

[0011] Furthermore, the upper part of the transverse bracket is respectively connected and fixed to the lower end surface of the main deck and the side surface of the longitudinal bone of the main deck, and the lower part of the transverse bracket is respectively connected and fixed to the end surface of the inclined plate or curved plate and the side surface of the longitudinal bone on the inclined plate or curved plate.

[0012] Furthermore, when the transverse bracket is welded, the transverse bracket is first welded and fixed to the end surface of the main deck and the end surface of the inclined plate or the curved plate, and then the transverse bracket is connected and fixed to the longitudinal bone on the main deck and the longitudinal bone on the inclined plate or the curved plate.

[0013] Furthermore, the dimensions of the transverse bracket are determined as follows: the connection length between the transverse bracket and the side of the longitudinal on the main deck is 50 mm less than the width of the longitudinal on the main deck; the connection length between the transverse bracket and the side of the longitudinal on the inclined plate or the curved plate is the same as the width of the longitudinal on the inclined plate or the curved plate.

[0014] Further, the transverse bracket comprises an upper bracket and a lower bracket, the upper bracket is connected and fixed to the main deck, the lower bracket is connected and fixed to the inclined plate or the curved plate, and the upper bracket and the lower bracket are connected by an arc; the arc at the connection between the upper bracket and the lower bracket is determined specifically as follows: the angle between the upper bracket and the lower bracket is determined, the angle bisector of the angle between the upper bracket and the lower bracket is drawn, and a circle tangent to the upper bracket and the lower bracket is drawn, the center of the circle is on the angle bisector of the angle between the upper bracket and the lower bracket, the radius of the circle is the maximum value of the connection length between the transverse bracket and the side surface of the longitudinal bone on the main deck and the connection length between the transverse bracket and the side surface of the longitudinal bone on the inclined plate or the curved plate, and the arc of the portion tangent to the upper bracket and the lower bracket is the determined connection arc.

[0015] Based on the above technical solution, the design method for the narrow area structure of a ship in the present invention has achieved the following technical advantages through practical application:

[0016] 1. The present invention provides a design method for a ship's narrow area structure. The transverse bracket replaces the longitudinal bone, thereby reducing the welding complexity of the ship's narrow area, eliminating the curved profile, reducing the weld length, and reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic diagram of a narrow area structure of a ship in a design method for a narrow area structure of a ship.

[0018] Figure 2 The present invention is a diagram for determining the size of a transverse bracket in a design method for a narrow area structure of a ship. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific examples shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0020] The present invention can not only realize the pre-outfitting integrity of the segment and block stages, greatly reduce the outfitting workload in the engine room bilge area during the dock construction stage, and improve the dock operating environment and safe production environment, but also eliminate the interference between the structure and the outfitting in the original dock hoisting process, thereby greatly improving the segment hoisting efficiency and further shortening the dock construction period.

[0021] like Figure 1 and Figure 2 The present invention relates to a design method for a narrow area structure of a ship, which specifically comprises the following steps:

[0022] S1, determine the minimum distance between the sharp corner of the narrow area and the longitudinal bone 1 of the main deck 2, and determine the minimum distance between the sharp corner of the narrow area and the longitudinal bone 1 on the inclined plate or curved surface;

[0023] S2: When the minimum distance between the narrow area corner and the longitudinal 1 of the main deck 2 and the minimum distance between the narrow area corner and the longitudinal 1 on the inclined plate or curved surface is less than 350 mm, the longitudinal 1 at the uppermost end of the inclined plate or curved surface shall be replaced by a transverse bracket;

[0024] When the longitudinal bones 1 on the bevel plate or curved surface are arranged too densely, only the uppermost longitudinal bones 1 of the bevel plate or curved surface are taken, and the condition of L>350mm cannot be met, and several longitudinal bones 1 can be continuously cancelled until the condition is met.

[0025] S3, determine the connection dimensions between the transverse bracket and the longitudinal 1 of the main deck 2 and the inclined plate or the longitudinal 1 on the curved surface; install the transverse bracket in a narrow area.

[0026] By replacing the longitudinal bones 1 with transverse brackets, the welding complexity in the narrow area of ​​the ship is reduced, the curved profile is eliminated, the weld length is reduced, and the production cost is reduced.

[0027] The longitudinal bones 1 of the main deck 2 are angle steels, bulb flat steels or T-rows.

[0028] The longitudinal bones 1 on the bevel plate or the curved surface are angle steels, bulb flat steels or T-rows.

[0029] The upper part of the transverse bracket is respectively connected and fixed to the lower end surface of the main deck 2 and the side surface of the longitudinal bone 1 of the main deck 2, and the lower part of the transverse bracket is respectively connected and fixed to the end surface of the inclined plate or curved plate 4 and the side surface of the longitudinal bone 1 on the inclined plate or curved plate 4.

[0030] When the transverse bracket is welded, the transverse bracket is first welded and fixed to the end surface of the main deck 2 and the end surface of the inclined plate or curved plate 4, and then the transverse bracket is connected and fixed to the longitudinal bone 1 on the main deck 2 and the longitudinal bone 1 on the inclined plate or curved plate 4.

[0031] The dimensions of the transverse bracket are determined as follows: the connection length between the transverse bracket and the side of the longitudinal bone 1 on the main deck 2 is 50 mm less than the width of the longitudinal bone 1 on the main deck 2; the connection length between the transverse bracket and the side of the longitudinal bone 1 on the inclined plate or curved plate 4 is the same as the width of the longitudinal bone 1 on the inclined plate or curved plate 4.

[0032] The transverse bracket comprises an upper bracket and a lower bracket, the upper bracket is connected and fixed to the main deck 2, the lower bracket is connected and fixed to the inclined plate or the curved plate 4, and the upper bracket and the lower bracket are connected by an arc; the arc at the connection between the upper bracket and the lower bracket is determined specifically as follows: the angle between the upper bracket and the lower bracket is determined, the angle bisector of the angle between the upper bracket and the lower bracket is drawn, and a circle tangent to the upper bracket and the lower bracket is drawn, the center of the circle is on the angle bisector of the angle between the upper bracket and the lower bracket, the radius of the circle is the maximum value of the connection length between the transverse bracket and the side of the longitudinal bone 1 on the main deck 2 and the connection length between the transverse bracket and the side of the longitudinal bone 1 on the inclined plate or the curved plate 4, and the arc tangent to the upper bracket and the lower bracket is the determined connection arc.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A design method for a narrow area structure of a ship, characterized in that: The method specifically comprises the following steps: S1, determine the minimum distance between the sharp corners of the narrow area and the longitudinals of the main deck, and determine the minimum distance between the sharp corners of the narrow area and the longitudinals on the inclined plate or curved surface; S2: When the minimum distance between the narrow area corner and the longitudinal of the main deck and the minimum distance between the narrow area corner and the longitudinal on the inclined plate or curved surface is less than 350mm, the longitudinal on the uppermost end of the inclined plate or curved surface shall be replaced by a transverse bracket; S3, determine the connection dimensions of the transverse brackets with the longitudinals and inclined plates or longitudinals on the curved surface of the main deck; install the transverse brackets in a narrow area.

2. A design method for a narrow area structure of a ship according to claim 1, characterized in that: The longitudinal bones of the main deck are angle steel, bulb flat steel or T-row.

3. A design method for a narrow area structure of a ship according to claim 1, characterized in that: The longitudinal bones on the bevel plate or the curved surface are angle steel, bulb flat steel or T-row.

4. A design method for a narrow area structure of a ship according to claim 1, characterized in that: The upper part of the transverse bracket is respectively connected and fixed to the lower end surface of the main deck and the side surface of the longitudinal bone of the main deck, and the lower part of the transverse bracket is respectively connected and fixed to the end surface of the inclined plate or curved plate and the side surface of the longitudinal bone on the inclined plate or curved plate.

5. A design method for a narrow area structure of a ship according to claim 4, characterized in that: When the transverse bracket is welded, the transverse bracket is firstly welded and fixed to the end surface of the main deck and the end surface of the inclined plate or the curved plate, and then the transverse bracket is connected and fixed to the longitudinal bone on the main deck and the longitudinal bone on the inclined plate or the curved plate.

6. A design method for a narrow area structure of a ship according to claim 5, characterized in that: The dimensions of the transverse bracket are determined as follows: the connection length between the transverse bracket and the side of the longitudinal on the main deck is 50 mm less than the width of the longitudinal on the main deck; the connection length between the transverse bracket and the side of the longitudinal on the inclined plate or the curved plate is the same as the width of the longitudinal on the inclined plate or the curved plate.

7. A design method for a narrow area structure of a ship according to claim 6, characterized in that: The transverse bracket comprises an upper bracket and a lower bracket, the upper bracket is connected and fixed to the main deck, the lower bracket is connected and fixed to the inclined plate or the curved plate, and the upper bracket and the lower bracket are connected by an arc; the arc at the connection between the upper bracket and the lower bracket is determined specifically as follows: determine the angle between the upper bracket and the lower bracket, draw the angle bisector of the angle between the upper bracket and the lower bracket, draw a circle tangent to the upper bracket and the lower bracket respectively, the center of the circle is on the angle bisector of the angle between the upper bracket and the lower bracket, the radius of the circle is the maximum value of the connection length between the transverse bracket and the side of the longitudinal bone on the main deck and the connection length between the transverse bracket and the side of the longitudinal bone on the inclined plate or the curved plate, and the arc of the part tangent to the upper bracket and the lower bracket is the determined connection arc.

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