CN115416802A

CN115416802A - Inverted deck beam arch structure

Info

Publication number: CN115416802A
Application number: CN202211221655.2A
Authority: CN
Inventors: 华康; 耿继文; 马亚成; 郑祖中; 麻翠荣; 金晖; 李博
Original assignee: Shanghai Merchant Ship Design and Research Institute
Current assignee: Shanghai Merchant Ship Design and Research Institute
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2022-12-02

Abstract

The invention discloses a trans-deck beam arch structure, which comprises a bridge deck positioned at the top of a bridge; the midship line is arranged in the middle of the bridge deck in a penetrating way; the bridge deck positioned on one side of the ship centerline comprises a lower area part, a higher area part and a transition area part, wherein two ends of the transition area part are respectively connected with the higher area part and the lower area part; a low area part, a transition area part and a high area part are sequentially distributed from the midship line to the end part direction of the bridge deck; the top of the high section is higher than that of the low section; the transition area parts are distributed obliquely. The invention can ensure that the water accumulation area is positioned in the middle of the deck and is close to the peripheral wall area, thereby facilitating the arrangement of the downpipe and avoiding the suspended design of the downpipe of the traditional bridge deck beam arch.

Description

Inverted deck beam arch structure

Technical Field

The invention relates to the technical field of ships, in particular to a trans-deck beam arch structure.

Background

Large vessels usually have deck structures that protrude beyond the superstructure perimeter walls. Typically, the bridge structure is a box-like cantilever beam structure which is generally arranged in the upper area of the ship superstructure. Bridge decks can adopt a beam arch shape to avoid water accumulation. The beam arch is generally an arch with a high middle and low sides. The lowest position of the beam arch is provided with a downpipe to facilitate drainage. For the cantilever structure such as a bridge deck, the common beam arch design can cause the problems of hanging of a downpipe and the like; meanwhile, the edge of the bridge deck is at a low position, and the water can overflow the water retaining structure at the edge of the deck when the accumulated water is more, and can naturally fall into the water and splash to the lower deck.

The defects of the prior art scheme are as follows:

1. the lowest position of the beam arch is provided with a downpipe to facilitate drainage. For the cantilever structure of bridge deck, the existing beam arch design can cause the problems that the downpipe is suspended and difficult to maintain.

2. The bridge deck edge is in the low level, can spill over the fence water structure at deck edge when ponding is more, falls into water naturally and splashes to the lower deck, causes the crew operation unchangeable and causes the safety risk easily.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects in the prior art and provide a trans-deck girder arch structure.

The invention solves the technical problems through the following technical scheme:

a trans-deck beam-arch structure comprising a bridge deck located at the top of a bridge; the midship line is arranged in the middle of the bridge deck in a penetrating way; the bridge deck positioned on one side of the ship centerline comprises a lower area part, a higher area part and a transition area part, wherein two ends of the transition area part are respectively connected with the higher area part and the lower area part; a low area part, a transition area part and a high area part are sequentially distributed from the midship line to the end part direction of the bridge deck; the top of the high section is higher than that of the low section; the transition area parts are distributed obliquely.

The bridge deck takes the ship center line as the symmetrical center line.

The bridge deck is of a broken line type, the lower area part is of a horizontal line, the transition area part is of an oblique line, and the high area part is of a horizontal line or an oblique line.

The bridge deck is in a circular arc shape, and the high area part, the transition area part and the low area part are connected into a circular arc.

The bridge deck is parabolic, with the high section located at the upper portion of the parabola and the low section located at the lower portion of the parabola.

The bridge deck is linear, the high area part is positioned at the upper part of the straight line, and the low area part is positioned at the lower part of the straight line.

The lower area part is provided with a downpipe port for fixedly connecting the downpipe.

The lower part of the lower area is provided with a superstructure, and the water falling port is positioned at the outer side of the peripheral wall of the superstructure.

The low section part, the transition section part and the high section part are integrally formed.

The low zone part and the transition zone part, and the transition zone part and the high zone part are connected by welding.

The invention has the beneficial effects that: the trans-deck beam arch structure can ensure that the water accumulation area is positioned in the middle of the deck and close to the peripheral wall area, is convenient to arrange the downpipe, and avoids the suspended design of the downpipe of the traditional bridge deck beam arch. The anti-form deck beam arch structure provided by the invention can avoid the phenomenon that the edge of a deck of a traditional bridge falls into water naturally and splashes to a lower deck, and ensure the operation safety and convenience of a crew.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.

Fig. 2 is a schematic structural view of the downpipe connection according to the preferred embodiment of the present invention.

Detailed Description

The present invention will be more clearly and completely described in the following description of preferred embodiments, taken in conjunction with the accompanying drawings.

As shown in fig. 1, a trans-deck girder arch structure includes a bridge deck 10 at the top of a bridge; the ship center line 20 is arranged in the middle of the bridge deck in a penetrating manner; the bridge deck on the side of the midship line includes a lower section 11, a higher section 13 and a transition section 12, and the two ends of the transition section 12 are connected to the higher section 13 and the lower section 11, respectively.

A low zone part 11, a transition zone part 12 and a high zone part 13 are distributed in sequence from the midship line to the end part direction of the bridge deck; the top of high section 13 is higher than the top of low section 11; the transition section 12 is distributed diagonally.

The bridge deck 10 is centered symmetrically about the midship line 20. I.e. the structure of the arbour decks on both sides of the centre line of the ship is the same.

In this embodiment, the bridge deck 10 is a broken line, the lower section 11 is a horizontal line, the transition section 12 is an oblique line, and the upper section 13 is a horizontal line or an oblique line.

As shown in fig. 2, the lower section 11 is provided with a downpipe 22 for fastening a downpipe 21. Below the lower section 11 is a superstructure 30, with a downspout 22 located outside the perimeter wall of the superstructure.

The connection between the lower section, the transition section and the upper section can be of several types.

The first connection mode is as follows: the low section, the transition section and the high section are formed by bending a steel plate, that is, the low section 11, the transition section 12 and the high section 13 are integrally formed.

The second type of connection is a welded connection. That is, the low section 11 and the transition section 12, and the transition section 12 and the high section 13 are welded together.

The third connecting mode is bending and welding. For example, the low section and the transition section are integrally formed, that is, the low section and the transition section are formed by bending a plate, and the high section and the transition section are connected by welding. Or the transition area part and the high area part are integrally formed, namely the transition area part and the high area part are formed by bending a plate, and the low area part and the transition area part are connected by welding.

The arbor deck is not limited to the zigzag type, but may be circular arc, parabolic or linear in other embodiments.

In another embodiment, the bridge deck is circular arc shaped, and the high section, the transition section and the low section are connected to form a circular arc.

In another embodiment, the bridge deck is parabolic, with the high section located at the upper portion of the parabola and the low section located at the lower portion of the parabola.

In another embodiment, the bridge deck is rectilinear, with the high section being located at the upper portion of the line and the low section being located at the lower portion of the line.

The invention relates to a reverse deck beam arch structure which is mainly characterized in that the middle of a beam arch is low, and two sides of the beam arch are high. As shown in fig. 1, there is a height difference H between the high area portion and the low area portion. Because the middle of the beam arch is low and the two sides of the beam arch are high, an inclination angle towards the middle of the ship is formed, accumulated water is concentrated in the middle area of the ship, and the accumulated water is drained through the arrangement of the downpipe.

The trans-deck beam arch structure can ensure that the water accumulation area is positioned in the middle of the deck and close to the peripheral wall area, is convenient to arrange the downpipe, and avoids the suspended design of the downpipe of the traditional bridge deck beam arch.

The anti-form deck beam arch structure provided by the invention can avoid the phenomenon that the edge of a deck of a traditional bridge falls into water naturally and splashes to a lower deck, and ensure the operation safety and convenience of a crew.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims

1. A trans-deck beam-arch structure comprising a bridge deck located at the top of a bridge; the midship line is arranged in the middle of the bridge deck in a penetrating way; the bridge deck at one side of the ship midline comprises a low area part, a high area part and a transition area part, wherein the two ends of the transition area part are respectively connected with the high area part and the low area part; a low area part, a transition area part and a high area part are sequentially distributed from the midship line to the end part direction of the bridge deck; the top of the high section is higher than that of the low section; the transition area parts are distributed obliquely.

2. A trans deck girder arch structure according to claim 1 wherein the bridge deck is centered symmetrically about the centerline of the vessel.

3. A trans-deck girder arch structure according to claim 1 wherein the bridge deck is of a dogleg type, the lower section being horizontal, the transition section being diagonal, and the upper section being horizontal or diagonal.

4. A trans-deck girder arch structure according to claim 1 wherein the bridge deck is circular arc shaped and the high section, transition section and low section are connected to form a circular arc.

5. A trans-deck bridge arch structure according to claim 1 wherein the bridge deck is parabolic in shape with the high section located at an upper portion of the parabolic shape and the low section located at a lower portion of the parabolic shape.

6. A trans-deck girder arch structure according to claim 1 wherein the bridge deck is rectilinear, the high sections being located at the upper part of the line and the low sections being located at the lower part of the line.

7. The trans deck girder arch structure of claim 1 wherein the lower section is provided with a downpipe attachment for attaching a downpipe.

8. A trans deck beam arch structure according to claim 1 wherein below the lower section is a superstructure and the downspout is located outside the perimeter wall of the superstructure.

9. The trans deck girder arch structure of claim 1 wherein the lower section, the transition section and the upper section are integrally formed.

10. A trans deck girder arch structure according to claim 1 wherein the welded connections are between the lower section and the transition section and between the transition section and the upper section.