Ultra-large container ship transverse bulkhead block carrying method

Abstract

The invention discloses a method for carrying a transverse bulkhead block of an ultra-large container ship, which comprises the following steps of: confirming the serial number of a transverse rib plate aligned with the transverse bulkhead block, temporarily fixing a transverse continuous structure and a carrying plate with an inclined surface, hoisting the transverse bulkhead block, welding the transverse bulkhead block and dismantling a temporary fixing part in sequence to finish carrying. Deformation of the transverse bulkhead in the carrying process is avoided, the precision of the bulkhead capacity is guaranteed, deformation of the double-layer bottom plate caused when the transverse bulkhead is carried and guided is further avoided, the transverse bulkhead can be accurately positioned, the hook loosening speed of the transverse bulkhead block and hoisting equipment is increased, the operation frequency of the hoisting equipment is increased, and the utilization rate of dock resources is increased.

Description

Technical Field

[0001] The invention relates to the technical field of ship construction, and in particular to a method for mounting bulkhead sections of an ultra-large container ship. Background Art

[0002] With the continuous development of the shipbuilding industry, container ships are gradually developing towards larger sizes. The cargo hold opening of ultra-large container ships is relatively wide and very long, and the lateral strength of the entire ship mainly depends on the transverse bulkheads. The transverse bulkheads of ultra-large container ships are generally arranged between multiple standard containers, usually extending from the inner bottom or the bottom of the cargo hold to the transverse hatch coaming top plate. In order to reduce the weight of the empty ship and improve the performance indicators of container ships, the transverse bulkheads are designed to be more and more lightweight, causing the transverse bulkheads to be easily deformed during loading, and the cabin capacity is difficult to control, which is not conducive to the loading and unloading of containers. In the prior art, the position of the transverse bulkhead section is adjusted by moving the transverse bulkhead section toward the bow and stern through the cooperation of lifting equipment, top distance beams and bottom pull pumps, which makes it difficult to position the ultra-large container transverse bulkhead section and the lifting equipment takes a long time. Therefore, how to accurately and quickly load the transverse bulkhead section of ultra-large container ships needs to be solved urgently. Summary of the invention

[0003] In view of the defects existing in the prior art, the present application provides a method for loading a bulkhead of an ultra-large container ship to solve the technical problems of inaccurate loading capacity and slow loading speed of the bulkhead of an ultra-large container ship in the prior art.

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

[0005] A method for loading a transverse bulkhead section of an ultra-large container ship, wherein the transverse bulkhead section comprises a plurality of transverse bulkhead section reinforcement structures arranged along the ship width direction, and the transverse bulkhead section reinforcement structures are perpendicular to the double bottom after loading. The loading method comprises the following steps:

[0006] S1. Plan to align the bow bulkhead or stern bulkhead of the rear transverse bulkhead section with the transverse ribs on the reverse side of the inner bottom plating of the double bottom, and confirm the serial number of the transverse ribs that the bow bulkhead or stern bulkhead of the transverse bulkhead section is to be aligned with;

[0007] S2. Temporarily fix a transverse continuous structure on the lower side of the transverse bulkhead section, the transverse continuous structure is vertically fixed to a plurality of transverse bulkhead section reinforcement structures, and a plurality of carrying plates are vertically fixed to the transverse bulkhead section reinforcement structure pre-placement position on the upper surface of the inner bottom plate, a downwardly inclined surface is provided on the upper side of the carrying plate, the inclined surface faces the transverse bulkhead section pre-placement position, a vertical surface is provided at the lower end of the inclined surface, the horizontal distance between the vertical surface of the carrying plate and the rib surface of the transverse rib selected in S1 is equal to the wall thickness of the bow bulkhead or the stern bulkhead of the transverse bulkhead section, and the height of the carrying plate is less than the distance between the transverse continuous structure and the lower end of the transverse bulkhead section;

[0008] S3, hoist the transverse bulkhead section, so that the lower end of the transverse bulkhead section slides down along the inclined surface of the mounting plate installed in S2 and falls onto the inner bottom plate, so that the bow bulkhead or stern bulkhead of the transverse bulkhead section is aligned with the transverse ribs confirmed in S1; the crane releases the hook and the hoisting equipment is driven away;

[0009] S4. Weld the transverse bulkhead section, remove the temporary fixing parts, and complete the loading.

[0010] In one embodiment, the transverse continuous structure is an I-beam, the distance between the transverse continuous structure and the lower end of the transverse bulkhead section is 600 mm, and the height of the mounting plate is less than 500 mm.

[0011] In one embodiment, the carrying plate is in the shape of a right-angled trapezoid, the short side of the carrying plate faces the pre-placement position of the transverse bulkhead section, and the straight side of the carrying plate is fixedly connected to the inner bottom plate.

[0012] In one embodiment, the height of the long side of the mounting plate is 300 mm, the height of the short side of the mounting plate is 150 mm, and the thickness of the mounting plate is 12 to 20 mm.

[0013] In one embodiment, a carrying plate is arranged on the centerline of the hull, and the carrying plates are arranged symmetrically about the centerline of the hull. The distance between the vertical surface of the carrying plate and the horizontal surface of the rib surface of the transverse rib selected by S1 is equal to 24 mm.

[0014] In one embodiment, step S3 also includes that before the crane releases the hook, restraint horse plates are symmetrically fixedly installed on the bow bulkhead and the stern bulkhead of the transverse bulkhead section, and restraint welding is symmetrically performed about the centerline of the hull at the contact points between the left and right ends of the transverse bulkhead section 1 and the bilge step, wherein the restraint horse plates are rectangular, the vertical sides of the restraint horse plates are welded to the reinforcing structure of the transverse bulkhead section, and the horizontal sides of the restraint horse plates are welded to the inner bottom plate.

[0015] In one embodiment, the length of the weld on the restraining horse plate is greater than or equal to 150 mm, and the length of the weld of the restraining welding is greater than or equal to 500 mm.

[0016] In one embodiment, along the width direction of the ship, a plurality of restraining saddle plates are symmetrically arranged on the inner bottom plate about the center line of the hull.

[0017] In one embodiment, the temporary fixing components removed in step S4 include a transverse continuous structure, a carrying plate and a restraining horse plate.

[0018] Compared with the prior art, this application has at least the following beneficial effects:

[0019] In the present invention, a transverse continuous structure is temporarily fixed on the lower side of the bulkhead section of the ultra-large container ship, thereby avoiding deformation of the bulkhead during loading and ensuring the accuracy of the cabin capacity. A loading plate with an inclined surface is provided on the inner bottom plate, and the loading plate is installed at a position where there are transverse ribs inside the double bottom. When the bulkhead section is loaded, it can slide down to the double bottom along the inclined surface guide, which can not only avoid deformation of the double bottom plate when the bulkhead is loaded and guided, but also accurately position the bulkhead. By providing a restraining horse plate and restraining welding, the verticality of the bulkhead section can be ensured after positioning, and the bulkhead section can be quickly unhooked from the lifting equipment, thereby increasing the operating frequency of the lifting equipment and improving the utilization rate of dock resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a general schematic diagram of the transverse bulkhead section of a super-large container ship in an embodiment of the present application;

[0021] Figure 2 yes Figure 1 Middle A is an enlarged schematic diagram;

[0022] Figure 3 This is a schematic diagram of the connection between the mounting plate and the inner bottom plate in the embodiment of the present application;

[0023] Figure 4 It is a schematic diagram of the connection between the restraining horse plate, the inner bottom plate and the transverse bulkhead in the embodiment of the present application.

[0024] The specific description of the accompanying drawings is as follows: transverse bulkhead section 1, transverse bulkhead section reinforcement structure 101, transverse continuous structure 102, double bottom 2, inner bottom plate 201, transverse rib 202, carrying plate 3, restraining horse plate 4, bilge step 5, restraining welding 6. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific embodiments 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.

[0026] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0027] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms and should not be understood as indicating or implying relative importance. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0028] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0029] In order to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings.

[0030] This embodiment provides a method for loading bulkhead sections of a super-large container ship, such as Figure 1 As shown, the transverse bulkhead section 1 includes a plurality of transverse bulkhead section reinforcement structures 101 arranged along the ship width direction. The transverse bulkhead section reinforcement structures 101 are perpendicular to the double bottom 2 after loading. The loading method includes the following steps:

[0031] S1. Plan to align the bow bulkhead or stern bulkhead of the rear transverse bulkhead section 1 with the transverse ribs 202 on the reverse side of the inner bottom plate 201 of the double bottom 2, and confirm the serial number of the transverse ribs 202 with which the bow bulkhead or stern bulkhead of the transverse bulkhead section 1 is to be aligned.

[0032] like Figure 3 In the embodiment shown, the fore bulkhead of the transverse bulkhead section 1 is selected to align with the transverse rib 202 on the reverse side of the inner bottom plate 201 and is numbered FR263.

[0033] S2. Temporarily fix the transverse continuous structure 102 on the lower side of the transverse bulkhead section 1. The transverse continuous structure 102 is vertically fixed to a plurality of transverse bulkhead section reinforcement structures 101. A plurality of mounting plates 3 are vertically fixed to the pre-placed position of the transverse bulkhead section reinforcement structure 101 on the upper surface of the inner bottom plate. Figure 3 As shown, a downwardly inclined surface is provided on the upper side of the mounting plate 3, the inclined surface faces the pre-placement position of the transverse bulkhead section, and a vertical surface is provided at the lower end of the inclined surface. The horizontal distance between the vertical surface of the mounting plate 3 and the rib surface of the transverse rib 202 selected by S1 is equal to the wall thickness of the bow bulkhead or the stern bulkhead of the transverse bulkhead section 1, and the height of the mounting plate 3 is less than the distance between the transverse continuous structure 102 and the lower end of the transverse bulkhead section 1.

[0034] In this embodiment, the transverse continuous structure 102 is an I-beam, the distance between the transverse continuous structure 102 and the lower end of the transverse bulkhead section 1 is 600 mm, and the height of the mounting plate 3 is less than 500 mm. Figure 2 As shown, in this embodiment, the carrying plate 3 is in the shape of a right-angled trapezoid, the short side of the carrying plate 3 faces the pre-placement position of the transverse bulkhead, and the straight side of the carrying plate 3 is fixedly connected to the inner bottom plate 201. The height of the long side of the carrying plate 3 is 300 mm, the height of the short side of the carrying plate 3 is 150 mm, and the thickness of the carrying plate 3 is 12 to 20 mm.

[0035] The carrying plate 3 is provided with a through hole, and the rope can pass through the through hole for the storage and circulation of the carrying plate 3. In order to meet the weld leg height requirement of the cross bulkhead section carrying fillet joint, the right angle of the short side of the carrying plate 3 is chamfered.

[0036] In this embodiment, a carrying plate 3 is arranged on the center line of the hull, and the carrying plates 3 are arranged symmetrically about the center line of the hull. The distance between the vertical surface of the carrying plate 3 and the horizontal surface of the rib surface of the transverse rib 202 selected by S1 is equal to 24 mm.

[0037] The loading plate 3 is installed at the position where there is a transverse rib inside the double bottom to prevent the double bottom from being deformed when the transverse bulkhead is loaded and guided. After the loading plate 3 is installed, the bulkhead section slides down along the inclined surface guide to the double bottom 2, and the front end of the wall thickness of the transverse bulkhead is aligned with the front end of the rib thickness inside the double bottom, so that the transverse bulkhead can be accurately positioned.

[0038] S3, hoist the transverse bulkhead section 1, so that the lower end of the transverse bulkhead section 1 slides down along the inclined surface of the mounting plate 3 installed in S2 and falls onto the inner bottom plate 201 of the double bottom 2, so that the bow bulkhead or stern bulkhead of the transverse bulkhead section 1 is aligned with the transverse rib 202 confirmed by S1; release the hook of the crane, and drive away the hoisting equipment.

[0039] S4. Weld the transverse bulkhead section 1, remove the temporary fixing parts, and complete the loading.

[0040] This embodiment also includes in step S3, before the crane releases the hook, Figure 4 As shown, the restraining saddle plate 4 is symmetrically fixedly installed on the bow bulkhead and the stern bulkhead of the transverse bulkhead section 1, and the restraining welding is symmetrically performed about the center line of the hull at the left and right ends of the transverse bulkhead section 1 where the bilge step 5 contacts the bilge step 5. The restraining saddle plate 4 is rectangular, the vertical side of the restraining saddle plate 4 is welded to the transverse bulkhead section reinforcement structure 101, and the horizontal side of the restraining saddle plate 4 is welded to the inner bottom plate 201. The length and width of the restraining saddle plate 4 are both 200 mm.

[0041] In order to ensure that the restraint plate 4 restrains the bulkhead, the length of the weld on the restraint plate 4 is greater than or equal to 150 mm, and the length of the restraint welding weld is greater than or equal to 500 mm. Along the ship width direction, multiple restraint plates 4 are symmetrically arranged on the inner bottom plate 201 about the center line of the hull.

[0042] By setting the restraining horse plate and restraining welding, the verticality of the bulkhead section 1 can be ensured after positioning, and the bulkhead section 1 can be quickly unhooked from the lifting equipment, thereby increasing the operating frequency of the lifting equipment and improving the utilization rate of dock resources.

[0043] The temporary fixing components removed in step S4 include the transverse continuous structure 102, the carrying plate 3 and the restraining horse plate 4. The temporary fixing components can be reused multiple times.

[0044] 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 method for loading bulkhead sections of ultra-large container ships, characterized in that: The transverse bulkhead section comprises a plurality of transverse bulkhead section reinforcement structures arranged along the ship width direction, and the transverse bulkhead section reinforcement structures are perpendicular to the double bottom after loading. The loading method comprises the following steps: S1. Plan to align the bow bulkhead or stern bulkhead of the rear transverse bulkhead section with the transverse ribs on the reverse side of the inner bottom plating of the double bottom, and confirm the serial number of the transverse ribs that the bow bulkhead or stern bulkhead of the transverse bulkhead section is to be aligned with; S2. Temporarily fix a transverse continuous structure on the lower side of the transverse bulkhead section, the transverse continuous structure is vertically fixed to a plurality of transverse bulkhead section reinforcement structures, and a plurality of carrying plates are vertically fixed to the transverse bulkhead section reinforcement structure pre-placement position on the upper surface of the inner bottom plate, a downwardly inclined surface is provided on the upper side of the carrying plate, the inclined surface faces the transverse bulkhead section pre-placement position, a vertical surface is provided at the lower end of the inclined surface, the horizontal distance between the vertical surface of the carrying plate and the rib surface of the transverse rib selected in S1 is equal to the wall thickness of the bow bulkhead or the stern bulkhead of the transverse bulkhead section, and the height of the carrying plate is less than the distance between the transverse continuous structure and the lower end of the transverse bulkhead section; S3, hoist the transverse bulkhead section, so that the lower end of the transverse bulkhead section slides down along the inclined surface of the mounting plate installed in S2 and falls onto the inner bottom plate, so that the bow bulkhead or stern bulkhead of the transverse bulkhead section is aligned with the transverse ribs confirmed in S1; the crane releases the hook and the hoisting equipment is driven away; S4. Weld the transverse bulkhead section, remove the temporary fixing parts, and complete the loading.

2. The method for loading bulkhead sections of ultra-large container ships according to claim 1, characterized in that: The transverse continuous structure is an I-beam, the distance between the transverse continuous structure and the lower end of the transverse bulkhead section is 600 mm, and the height of the mounting plate is less than 500 mm.

3. The method for loading bulkhead sections of ultra-large container ships according to claim 1, characterized in that: The carrying plate is in the shape of a right-angled trapezoid, the short side of the carrying plate faces the pre-placement position of the transverse bulkhead, and the straight side of the carrying plate is fixedly connected to the inner bottom plate.

4. The method for loading bulkhead sections of ultra-large container ships according to claim 3, characterized in that: The height of the long side of the mounting plate is 300 mm, the height of the short side of the mounting plate is 150 mm, and the thickness of the mounting plate is 12 to 20 mm.

5. The method for loading bulkhead sections of ultra-large container ships according to claim 1, characterized in that: A carrying plate is arranged on the center line of the hull, and the carrying plates are arranged symmetrically about the center line of the hull. The distance between the vertical surface of the carrying plate and the horizontal surface of the rib surface of the transverse rib selected by S1 is equal to 24 mm.

6. The method for loading bulkhead sections of ultra-large container ships according to claim 1, characterized in that: Step S3 also includes that before the crane releases the hook, restraint horse plates are symmetrically fixedly installed on the bow bulkhead and the stern bulkhead of the transverse bulkhead section, and restraint welding is symmetrically performed about the center line of the hull at the contact points between the left and right ends of the transverse bulkhead section 1 and the bilge step. The restraint horse plates are rectangular in shape, and the vertical sides of the restraint horse plates are welded to the reinforcing structure of the transverse bulkhead section, and the horizontal sides of the restraint horse plates are welded to the inner bottom plate.

7. The method for loading bulkhead sections of ultra-large container ships according to claim 6, characterized in that: The length of the weld on the restraint plate is greater than or equal to 150mm, and the length of the weld for restraint welding is greater than or equal to 500mm.

8. The method for loading bulkhead sections of ultra-large container ships according to claim 6, characterized in that: Along the width direction of the ship, a plurality of restraining saddle plates are symmetrically arranged on the inner bottom plate about the center line of the hull.

9. The method for loading bulkhead sections of ultra-large container ships according to claim 6, characterized in that: The temporary fixing components removed in step S4 include the transverse continuous structure, the carrying plate and the restraining horse plate.

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