CN218703723U

CN218703723U - Double-layer first building deck structure at head part of roll-on roll-off ship

Info

Publication number: CN218703723U
Application number: CN202222920354.0U
Authority: CN
Inventors: 刘美彤; 黄慧; 华康; 杜拥军; 赵文斌; 金晖; 马亚成
Original assignee: Shanghai Merchant Ship Design and Research Institute
Current assignee: Shanghai Merchant Ship Design and Research Institute
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-03-24
Anticipated expiration: 2032-11-02

Abstract

The utility model relates to a roll-on-roll-off ship head double-layer first-floor deck structure, which comprises a first-door slide rail, a head upper-layer deck and a head lower-layer deck; crossbeams and vertical girders which are staggered in vertical girder are fixedly arranged in a space between a pair of broadside longitudinal bulkheads between the upper deck and the lower deck of the header; the first door sliding rail is fixedly arranged at the lower part of the lower deck of the head part. The utility model discloses the double-deck first floor deck structure of prelude has increased prelude structural strength, reduces the prelude and warp and stress, has restrained the whole deformation of boats and ships prelude, guarantees prelude structure yield strength.

Description

Double-layer first building deck structure at head part of roll-on roll-off ship

Technical Field

The utility model relates to a ro-ro ship prelude structure especially relates to a double-deck structure of ro-ro ship prelude, belongs to ship design technical field.

Background

During sailing of the multipurpose ro-ro vessel, a head door on a main deck receives a large wave attack load and is transmitted to a head hull structure through a fastening and supporting device. The header structure is subjected to a large upwardly acting design load under which the entire header structure above the head door (especially the first deck) is subjected to overall deformation and large stresses.

Disclosure of Invention

The utility model aims at providing a roll-on-roll-off ship prelude double-deck first floor deck structure is bilayer structure with the prelude design on the first floor deck of main deck top, designs the additional strengthening structure simultaneously between bilayer structure, solves the problem of roll-on-roll-off ship prelude stress risk, avoids producing the transformation influence to first floor deck main part position again simultaneously.

The utility model adopts the following technical proposal:

a head double-layer first-floor deck structure of a roll-on-roll-off ship comprises a head slide rail 2, a head upper-layer deck 6 and a head lower-layer deck 5; crossbeams 7 and stringers 8 which are staggered are fixedly arranged in a space between the pair of broadside longitudinal bulkheads 4 between the header upper deck 6 and the header lower deck 5; the first door slide rail 2 is fixedly arranged at the lower part of the lower deck 5 of the head part.

Preferably, the distance between the upper deck 6 and the lower deck 5 is 0.8-1.2 m.

Preferably, the lower deck 5 has a longitudinal length of 4 to 6 meters.

Preferably, the head door sliding rail 2 has a head door supporting device 1, and the head door supporting device 1 penetrates through the lower layer head lower layer deck 5 upwards and is fixedly connected with the bottom of the head part upper layer deck 6.

Preferably, a plurality of said cross girders 7 and longitudinal girders 8 form a plurality of box-type structural frames.

Preferably, the foremost end of the bow upper deck 6 is located at the bent portion of the hull plate 3.

The beneficial effects of the utility model reside in that:

1) The double-layer first-floor deck structure of the bow increases the structural strength of the bow, reduces the deformation and stress of the bow, inhibits the overall deformation of the bow of the ship, and ensures the yield strength of the bow structure;

2) The original side longitudinal bulkhead of the ship body is used as the longitudinal girder at the outermost side, so that structural redundancy is avoided, and structural weight is controlled;

3) Through designing double-deck first floor deck at boats and ships prelude to rationally design double deck structure scope, the continuous vertical bulkhead of make full use of topside does the tip restraint, forms overall frame construction, effectively improves prelude structural strength, restricts the prelude and warp, reduces structural stress.

Drawings

Figure 1 is a plan view of the lower surface of the lower deck of the header.

Figure 2 is a plan view of the upper surface of the header lower deck.

Fig. 3 isbase:Sub>A cross-sectional (base:Sub>A-base:Sub>A cross-sectional) view of the boat in fig. 2.

Fig. 4 is a side cross-sectional (B-B cross-sectional) view of the ship of fig. 2.

In the figure, 1 is a head door support device, 2 is a head door slide rail, 3 is an outer hull plate, 4 is a side longitudinal bulkhead, 5 is a lower deck of a header, 6 is an upper deck of a header (the front part of the first deck), 7 is a cross beam, and 8 is a longitudinal girder.

Detailed Description

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

The first floor deck is a deck located above a first door, and for a roll-on/roll-off ship, the main deck is used for entering and exiting a load-bearing vehicle, and the first door is arranged between the main deck and the first floor deck. The embodiment is mainly used for carrying out structural optimization on the first-floor deck.

Referring to fig. 1-4, the double-layer head-building deck structure of the roll-on-roll-off ship comprises a head-door slide rail 2, an upper head-building deck 6 and a lower head-building deck 5; crossbeams 7 and longitudinal girders 8 which are staggered with longitudinal girders are fixedly arranged in a space between a pair of side longitudinal bulkheads 4 between the head part upper deck 6 and the head part lower deck 5; the head door slide rail 2 is fixedly arranged at the lower part of the lower deck 5 of the head part.

Fig. 1 is a plan view of the lower surface of the lower deck of the first floor deck, while only the first door slide 1 and the first door slide support device are shown in this figure. Figure 2 is a plan view of the upper surface of the lower deck of the first floor deck.

In this embodiment, the upper deck 6 and the lower deck 5 are spaced apart 0.8-1.2 meters, see fig. 3-4.

In this embodiment, the lower deck 5 has a longitudinal length of 4-6 meters, see fig. 3-4.

In this embodiment, referring to fig. 1 and 3, a head door support device 1 is provided beside the head door sliding rail 2, and the head door support device 1 extends upward through the lower deck 5 of the lower header and is fixedly connected with the bottom of the upper deck 6 of the header.

In this embodiment, referring to fig. 2, a plurality of said transverse girders 7 and longitudinal girders 8 form a plurality of box-type structural frames.

In this embodiment, the foremost end of the bow upper deck 6 is located at the bend of the hull plates 3, see fig. 3-4.

The double-layer first floor deck structure of the head part of the roll-on-roll-off ship only improves the head structure of the first floor deck, does not affect the main body of the first floor deck, increases the structural strength of the head part, reduces the deformation and stress of the head part, inhibits the integral deformation of the head part of the ship, and ensures the yield strength of the head part structure; the original side longitudinal bulkhead of the ship body is used as the longitudinal girder at the outermost side, so that structural redundancy is avoided, and structural weight is controlled; through designing double-deck first floor deck at boats and ships prelude to rationally design double deck structure scope, the continuous vertical bulkhead of make full use of topside does the tip restraint, forms overall frame construction, effectively improves prelude structural strength, restricts the prelude and warp, reduces structural stress.

The above are preferred embodiments of the present invention, and those skilled in the art can make various changes or improvements on the above embodiments without departing from the general concept of the present invention, and these changes or improvements should fall within the scope of the present invention.

Claims

1. The utility model provides a roll-on-roll-off ship head double-deck first building deck structure, includes first door slide rail (2), its characterized in that:

comprises a header upper deck (6) and a header lower deck (5);

crossbeams (7) and longitudinal girders (8) which are staggered with each other are fixedly arranged between the header upper deck (6) and the header lower deck (5) and in a space between the pair of side longitudinal bulkheads (4);

the first door sliding rail (2) is fixedly arranged at the lower part of the lower deck (5) of the head part.

2. The ro-ro vessel bow double-decker headquarters deck structure as claimed in claim 1, wherein: the distance between the upper deck (6) and the lower deck (5) is 0.8-1.2 m.

3. The ro-ro vessel bow double-layer first floor deck structure of claim 1, wherein: the longitudinal length of the lower deck (5) is 4-6 m.

4. The ro-ro vessel bow double-layer first floor deck structure of claim 1, wherein: the head door sliding rail (2) is provided with a head door supporting device (1), and the head door supporting device (1) upwards penetrates through the head part lower layer deck (5) and is fixedly connected with the bottom of the head part upper layer deck (6).

5. The ro-ro vessel bow double-decker headquarters deck structure as claimed in claim 1, wherein: a plurality of the cross beams (7) and the longitudinal girders (8) form a plurality of box-type structural frames.

6. The ro-ro vessel bow double-decker headquarters deck structure as claimed in claim 1, wherein: the foremost end of the head part upper deck (6) is positioned at the bending part of the ship hull outer plate (3).