Connecting structure of cargo hold stand columns of roll-on-roll-off ship

Abstract

According to the connecting structure of the cargo hold stand columns of the roll-on-roll-off ship, the stand columns comprise upper-layer stand columns and lower-layer stand columns which are coaxially arranged on the upper side and the lower side of a deck, the connecting structure comprises girder structures and opposite rib structures which are coaxially arranged with the stand columns, and the girder structures extend by a certain distance in the direction away from the reverse side of the deck in the axial direction; the opposite-rib structure is fixedly arranged on the girder structure, the upper end of the opposite-rib structure is fixedly connected with the reverse side of the deck, the opposite-rib structure is located between the upper-layer stand column and the lower-layer stand column, and the area and the shape of the cross section of the opposite-rib structure are the same as those of the cross sections of the stand columns; the lower ends of the upper-layer stand columns are fixedly connected with the upper end face of the deck, and the upper ends of the lower-layer stand columns are fixedly connected with the lower end face of the girder structure. According to the connecting structure of the cargo hold stand columns of the roll-on-roll-off ship, by adopting special stand column arrangement and optimized assembly and process methods, the production process cost is reduced, the stand column folding efficiency is improved, and the digging and replacing number caused by the fact that ribs of the stand columns exceed the standard is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of shipbuilding technology, and specifically relates to a connection structure for the cargo hold column of a roll-on / roll-off ship. Background Technology

[0002] As a high-value-added transport vessel, car carriers do not have transverse or longitudinal bulkheads or other anti-torsion structures in the cargo hold area to meet higher loading requirements. The pillars, as the core structure of car carriers, bear the main stress of the entire ship. Therefore, the pillars on the heavy vehicle deck are generally thicker, and the connection structure is more complex. To meet the precision requirements of the specifications, the processing, manufacturing, and assembly precision control of the pillars are very difficult. Utility Model Content

[0003] To address the aforementioned issues, this utility model provides a connection structure for cargo hold columns of roll-on / roll-off ships. By adopting a special column arrangement and optimized assembly and process methods, it reduces production costs, improves column closure efficiency, and reduces the number of replacements required due to excessive reinforcement in the columns.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A connecting structure for cargo hold columns of a roll-on / roll-off (Ro-Ro) ship is disclosed. The columns include an upper column and a lower column coaxially arranged on the upper and lower sides of the deck. The connecting structure is located on the reverse side of the deck, with its upper end fixedly connected to the reverse side of the deck. The connecting structure includes a truss structure and a rib structure coaxially arranged with the columns. The truss structure extends axially a certain distance away from the reverse side of the deck. The rib structure is fixed to the truss structure, and its upper end is fixedly connected to the reverse side of the deck. The rib structure is located between the upper column and the lower column, and the cross-sectional area and shape of the rib structure are the same as those of the columns. The lower end of the upper column is fixedly connected to the upper surface of the deck, and the upper end of the lower column is fixedly connected to the lower end of the truss structure.

[0006] Furthermore, the truss structure includes a longitudinal truss structure and a transverse truss structure, which are arranged perpendicularly to each other and whose lower end faces are located in the same horizontal plane.

[0007] Furthermore, the longitudinal truss structure includes longitudinal trusses and longitudinal truss panels, and the transverse truss structure includes transverse trusses and transverse truss panels. The longitudinal truss panels and the transverse truss panels are coaxially and perpendicularly intersecting each other, and are all arranged parallel to the deck at intervals. The longitudinal trusses are vertically arranged between the longitudinal truss panels and the deck, and are located directly above the longitudinal centerline of the longitudinal truss panels. The transverse trusses are vertically located between the transverse truss panels and the deck, and are located directly above the transverse centerline of the transverse truss panels. The lower end face of the rib structure is fixedly connected to the upper end face of the longitudinal truss panels and the transverse truss panels.

[0008] Furthermore, the column has a rectangular cross-section, and the ribbed structure is formed by transverse stiffeners and longitudinal stiffeners perpendicularly disposed on the reverse side of the deck, between the longitudinal truss panel and the transverse truss panel.

[0009] Furthermore, there are four longitudinal stiffeners and four transverse stiffeners. Two transverse stiffeners are symmetrically arranged on both sides of the longitudinal truss in pairs. The end of the transverse stiffener closest to the longitudinal truss is fixedly connected to the longitudinal truss, and the end of the transverse stiffener away from the longitudinal truss is fixedly connected to the longitudinal stiffener. The four longitudinal stiffeners are symmetrically arranged on both sides of the transverse truss in pairs. The end of the longitudinal stiffener closest to the transverse truss is fixedly connected to the transverse truss, and the end face of the longitudinal stiffener away from the transverse truss is a free end face.

[0010] Furthermore, the longitudinal truss panel is a continuous panel, and the transverse truss panel consists of two identical panels. The two transverse truss panels are mirror images of each other and are fixedly connected to the longitudinal truss panel at the intersection of the longitudinal and transverse trusses.

[0011] Furthermore, all the reinforcing ribs are located above the longitudinal truss panel, and the lower four sides of the reinforcing ribs are located inside the four sides of the longitudinal truss panel at their location.

[0012] Furthermore, the transverse truss panel is a continuous panel, and the longitudinal truss panel consists of two identical panels. The two longitudinal truss panels are mirror images of each other and are fixedly connected to the transverse truss panel at the intersection of the longitudinal and transverse trusses.

[0013] Furthermore, all the reinforcing ribs are located above the transverse truss panel, and the lower four sides of the reinforcing ribs are located inside the four sides of the transverse truss panel at their location.

[0014] The structural connection of the cargo hold columns of the roll-on / roll-off ship using this invention can reduce the butt joints between thin and thick plates of longitudinal and transverse trusses, improve the deformation caused by welding, increase the efficiency of column reinforcement assembly and welding, and help adjust the structural rib alignment error caused by segmented closure. It is a column connection form with a simple structure that is easy to assemble on site and adjust the rib alignment during closure. Attached Figure Description

[0015] Figure 1 This is a perspective view of the connection structure of the cargo hold column of the roll-on / roll-off ship described in this utility model.

[0016] Figure 2 This is a side view of the connection structure of the cargo hold column of the roll-on / roll-off ship described in this utility model.

[0017] Figure 3 yes Figure 2 View in the middle HH direction.

[0018] Figure 4 yes Figure 3 View from the middle II direction.

[0019] Figure 5 yes Figure 2 View in the DD direction.

[0020] Figure 6 yes Figure 2 View from the JJ direction.

[0021] Among them, 1-longitudinal truss, 2-longitudinal truss panel, 3-transverse truss, 4-transverse truss panel, 5-transverse stiffener, 6-longitudinal stiffener, 7-deck, 8-upper column, 9-lower column. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] like Figure 1-6 As shown, a connecting structure for cargo hold columns of a roll-on / roll-off ship is disclosed. The columns include an upper column 8 and a lower column 9 coaxially arranged on the upper and lower sides of a deck 7. The connecting structure is located on the reverse side of the deck 7, with its upper end fixedly connected to the reverse side of the deck 7. The connecting structure includes a truss structure and a rib structure coaxially arranged with the columns. The truss structure extends axially a certain distance away from the reverse side of the deck 7. The rib structure is fixedly mounted on the truss structure, and its upper end is fixedly connected to the reverse side of the deck 7. The rib structure is located between the upper column 8 and the lower column 9, and the cross-sectional area and shape of the rib structure are the same as those of the columns. The lower end of the upper column 8 is fixedly connected to the upper end of the deck 7, and the upper end of the lower column 9 is fixedly connected to the lower end of the truss structure.

[0024] Specifically, the truss structure includes a longitudinal truss structure and a transverse truss structure, which are arranged perpendicularly to each other and whose lower end faces are located in the same horizontal plane.

[0025] The longitudinal truss structure includes longitudinal truss 1 and longitudinal truss panel 2. The transverse truss structure includes transverse truss 3 and transverse truss panel 4. The longitudinal truss panel 2 and the transverse truss panel 4 are coaxially and perpendicularly intersecting each other, and are both arranged parallel to and spaced apart from the deck 7. The longitudinal truss 1 is vertically arranged between the longitudinal truss panel 2 and the deck 7, and is located directly above the longitudinal centerline of the longitudinal truss panel 2. The transverse truss 3 is vertically arranged between the transverse truss panel 4 and the deck 7, and is located directly above the transverse centerline of the transverse truss panel 4. The lower end face of the ribbed structure is fixedly connected to the upper end face of the longitudinal truss panel 2 and the transverse truss panel 4.

[0026] Furthermore, the cross-section of the column is rectangular, and the ribbed structure is formed by transverse stiffeners 5 and longitudinal stiffeners 6 that are vertically arranged on the opposite side of the deck 7 between the longitudinal truss panel 2 and the transverse truss panel 4.

[0027] Specifically, there are four longitudinal stiffeners 6 and four transverse stiffeners 5. The four transverse stiffeners 5 are symmetrically arranged in pairs on both sides of the longitudinal truss 1. The end of the transverse stiffener 5 closest to the longitudinal truss 1 is fixedly connected to the longitudinal truss 1, and the end of the transverse stiffener 5 away from the longitudinal truss 1 is fixedly connected to the longitudinal stiffener 6. The four longitudinal stiffeners 6 are symmetrically arranged in pairs on both sides of the transverse truss 3. The end of the longitudinal stiffener 6 closest to the transverse truss 3 is fixedly connected to the transverse truss 3, and the end face of the longitudinal stiffener 6 away from the transverse truss 3 is a free end face.

[0028] In this embodiment, the longitudinal truss panel 2 is a continuous panel, and the transverse truss panel 4 consists of two identical panels. The two transverse truss panels 4 are mirror images of each other and are arranged on both sides of the intersection of the longitudinal truss 1 and the transverse truss 3, and are fixedly connected to the longitudinal truss panel 2. The rib structure is located above the longitudinal truss panel 2, and the lower four sides of the rib structure are located inside the four sides of the longitudinal truss panel at its location.

[0029] Of course, in other embodiments, the transverse truss panel 4 can be a continuous panel, and the longitudinal truss panel 2 can be two identical panels. The two longitudinal truss panels 2 are mirror images of each other and are arranged on both sides of the intersection of the longitudinal truss 1 and the transverse truss 3, and are fixedly connected to the transverse truss panel 4. The rib structure is located above the transverse truss panel 4, and the lower four sides of the rib structure are located inside the four sides of the transverse truss panel at its location.

[0030] The welding bevel and assembly process sequence of the connection structure described in this utility model are as follows: the fillet welds of the columns to the deck 7 and the longitudinal truss panel 2 or the transverse truss panel 4 adopt a 40-degree single-sided bevel, and the single-sided welding double-sided forming welding process is adopted. The perimeter of the rib structure connecting the two columns adopts a 40-degree single-sided bevel, and the single-sided welding double-sided forming welding process is adopted. After the longitudinal truss structure and the transverse truss structure are assembled and welded to the deck 7, the columns and rib structures are positioned and spot welded in sequence, ensuring that the bevels face outwards. The positioning of the upper column 8 and the lower column 9 is completed, and the rib structure is adjusted to ensure the rib alignment of the columns. The columns and rib structures are welded in sequence.

[0031] Those skilled in the art should understand that the above description is merely a specific embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connection structure for cargo hold columns of a roll-on / roll-off ship, the columns comprising an upper column and a lower column coaxially disposed on the upper and lower sides of the deck, characterized in that, The connecting structure is located on the reverse side of the deck, with its upper end fixedly connected to the reverse side of the deck. The connecting structure includes a truss structure and a rib structure coaxially arranged with the column. The truss structure extends a certain distance axially away from the reverse side of the deck. The rib structure is fixedly mounted on the truss structure, and its upper end is fixedly connected to the reverse side of the deck. The rib structure is located between the upper column and the lower column, and the cross-sectional area and shape of the rib structure are the same as those of the column. The lower end of the upper column is fixedly connected to the upper end of the deck, and the upper end of the lower column is fixedly connected to the lower end of the truss structure.

2. The connection structure of the cargo hold column of a roll-on / roll-off ship according to claim 1, characterized in that, The truss structure includes a longitudinal truss structure and a transverse truss structure, which are arranged perpendicularly to each other and whose lower end faces are located in the same horizontal plane.

3. The connection structure of the cargo hold column of a roll-on / roll-off ship according to claim 2, characterized in that, The longitudinal truss structure includes longitudinal trusses and longitudinal truss panels, and the transverse truss structure includes transverse trusses and transverse truss panels. The longitudinal truss panels and the transverse truss panels are coaxially and perpendicularly intersecting each other, and are arranged parallel to the deck at intervals. The longitudinal trusses are vertically arranged between the longitudinal truss panels and the deck, and are located directly above the longitudinal centerline of the longitudinal truss panels. The transverse trusses are vertically located between the transverse truss panels and the deck, and are located directly above the transverse centerline of the transverse truss panels. The lower end face of the ribbed structure is fixedly connected to the upper end face of the longitudinal truss panels and the transverse truss panels.

4. The connection structure of the cargo hold column of a roll-on / roll-off ship according to claim 3, characterized in that, The column has a rectangular cross-section, and the stiffening structure is formed by transverse stiffening plates and longitudinal stiffening plates that are vertically arranged on the reverse side of the deck between the longitudinal truss panel and the transverse truss panel.

5. The connection structure of the cargo hold column of a roll-on / roll-off ship according to claim 4, characterized in that, There are four longitudinal stiffeners and four transverse stiffeners. Two transverse stiffeners are symmetrically arranged on both sides of the longitudinal truss in pairs. The end of the transverse stiffener closest to the longitudinal truss is fixedly connected to the longitudinal truss, and the end of the transverse stiffener away from the longitudinal truss is fixedly connected to the longitudinal stiffener. The four longitudinal stiffeners are symmetrically arranged on both sides of the transverse truss in pairs. The end of the longitudinal stiffener closest to the transverse truss is fixedly connected to the transverse truss, and the end face of the longitudinal stiffener away from the transverse truss is a free end face.

6. A connection structure for a cargo hold column of a roll-on / roll-off ship according to any one of claims 3 to 5, characterized in that, The longitudinal truss panel is a continuous panel, and the transverse truss panel consists of two identical panels. The two transverse truss panels are mirror images of each other and are fixedly connected to the longitudinal truss panel at the intersection of the longitudinal and transverse trusses.

7. The connection structure of the cargo hold column of a roll-on / roll-off ship according to claim 6, characterized in that, All the reinforcing ribs are located above the longitudinal truss panel, and the four sides of the lower end of the reinforcing ribs are located inside the four sides of the longitudinal truss panel at their location.

8. A connection structure for a cargo hold column of a roll-on / roll-off ship according to any one of claims 3 to 5, characterized in that, The transverse truss panel is a continuous panel, and the longitudinal truss panel consists of two identical panels. The two longitudinal truss panels are mirror images of each other and are fixedly connected to the transverse truss panel at the intersection of the longitudinal and transverse trusses.

9. The connection structure of a cargo hold column for a roll-on / roll-off ship according to claim 8, characterized in that, All the reinforcing ribs are located above the transverse truss panel, and the lower four sides of the reinforcing ribs are located inside the four sides of the transverse truss panel at their location.

Images