CN111791983A

CN111791983A - Hull broadside structure of semi-submersible multifunctional transport assembly and disassembly ship

Info

Publication number: CN111791983A
Application number: CN202010478539.3A
Authority: CN
Inventors: 李卫锋; 蔡连财; 袁梦; 孙浩; 付绍洪; 邱晓虹; 袁海平; 李振华
Original assignee: Cosco Shipping Specialized Carriers Co ltd
Current assignee: Cosco Shipping Specialized Carriers Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-10-20

Abstract

The invention discloses a ship body broadside structure of a semi-submersible multifunctional transportation assembly and disassembly ship, which comprises a ship body shell, a main deck, two decks, a double-layer bottom, a longitudinal bulkhead and box-type units, wherein the double-layer bottom is connected with the bottom of the ship body shell, the main deck is arranged at the upper part of the ship body shell, the two decks are arranged below the main deck, the longitudinal bulkhead is arranged between the double-layer bottom and a second deck in a cabin, the box-type units are connected with the top of the ship body shell, beams are respectively arranged at the upper part and the lower part in each box-type unit and are respectively connected with the main deck and the second deck, and rib plate connecting supports are respectively arranged at the left side and the. The invention has the beneficial effects that: the integral bearing capacity is increased, and the side bearing capacity is improved; the longitudinal fender plays a role in protecting the side structure.

Description

Hull broadside structure of semi-submersible multifunctional transport assembly and disassembly ship

Technical Field

The invention relates to the technical field of hull structures, in particular to a hull broadside structure of a semi-submersible multifunctional transport assembly and disassembly ship.

Background

The semi-submersible multifunctional transport disassembly and assembly ship can be used for transporting heavy goods, and the weight of the goods is hundreds of tons when the goods are small and tens of thousands of tons when the goods are large. The floating platform is particularly suitable for being used for floating on the sea, towing and installing an ocean platform, dismantling a large ocean platform, carrying floating offshore platforms, floating docks, various ship bodies, offshore fishing yards and other super-large, super-heavy and super-wide goods.

The side structure of a general ship mainly receives an acting force at the time of total longitudinal bending, outboard water pressure, ballast water pressure in a tank, wave impact force, and the like. However, in the process of loading and transporting extra-heavy and heavy goods, the two sides of the ship body are always required to bear larger pressure due to the influence of factors such as the outward extension of the goods due to dead weight and extra-width, acceleration during navigation and the like. During the process of float-over installation and platform disassembly, due to the limitation of the major dimension of most of the current platforms, the support for supporting the platform to be disassembled is usually close to the ship side. Before the installation is completed or after the removal, the weight of the platform is fully borne by the support and transferred to both sides of the hull. In addition, the structure on both sides of the hull is subject to crushing or collision with the fender or the main structure of the platform. The requirements for the vertical bearing capacity and the horizontal bearing capacity of the ship body structure are higher than those of a common ship in the operation mode.

At present, most of heavy transport ships such as semi-submersible ships and self-propelled barge side structures generally adopt longitudinal framework potential, namely, the space between the bone materials (such as flat-bulb steel and angle steel) arranged along the length direction of the ship is small, the number of the bone materials is large, and the transverse structure is relatively small. The structure does not fully consider the particularity of the dismounting and mounting projects for carrying heavy cargos or towing, and the strength of the side structure cannot fully meet the requirements of the projects. It is common practice to require sufficient proof and evaluation by engineers before the project is performed, and to provide detailed local structural reinforcement schemes if the broadside strength is insufficient.

According to the reconstruction scheme, the ship enters a repair shop for reconstruction and reinforcement. On the one hand, the project expenditure cost is increased, and the ship rent income during maintenance is lost, on the other hand, the construction needs workers to enter the cabin with the closed ship body for construction, and the problems of high operation difficulty, high danger degree and the like exist due to the fact that the internal operation environment is severe. Because such heavy goods are often all unique, interim local enhancement often can not satisfy the demand of later stage project or goods, and also is difficult to predict moreover, consequently, this kind of local interim transformation enhancement often appears repeatedly, and the extravagant resource increases the cost.

Disclosure of Invention

The invention aims to overcome the defects of the existing hull structure, provides the hull broadside structure of the semi-submersible multifunctional detachable transport ship, which has simple structure, is convenient to construct and meets various operation requirements, and can greatly save the construction period and reduce the cost.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a multi-functional transportation dismouting ship's of semi-submerged formula hull topside structure, its includes hull shell, main deck, two decks, double-deck end, vertical bulkhead and box unit, the double-deck end is connected with hull shell bottom, hull shell upper portion sets up the main deck, two decks set up in the main deck below, set up vertical bulkhead between double-deck end in the cabin and two boards, the box unit is connected with hull shell top, the inside upper portion and the lower part of box unit respectively set up the crossbeam and are connected with main deck and two boards respectively, and left side and right side between two crossbeams set up floor joint support respectively.

The box unit sets up in deck, two boards and hull topside handing-over department, can effectual improvement boats and ships deck topside local strength.

Criss-cross structure skeletons are arranged between the two decks and the inner bottom plate, the distance between the side ribs is reduced to 600 plus 800 mm, and the side longitudinal girders are arranged from top to bottom, so that the number of the ribs can be increased, and the structural strength of the side is effectively improved.

The box type unit is provided with a manhole on a longitudinal girder close to the middle of a ship, so that personnel can conveniently go in and out for inspection, maintenance and the like.

And side ribs are arranged on the inner side of the hull shell to improve the strength. The side ribs are connected with a lower cross beam of the box-type unit, and the bottoms of the side ribs are connected with an inner bottom plate at the double-layer bottom. The spacing between adjacent broadside ribs is between 600 and 800 millimeters.

The hull shell is provided with a plurality of horizontal side longitudinal girders from top to bottom, and two ends of the side longitudinal girders extend to the bow and the stern respectively to enhance the total longitudinal strength and be used for supporting vertically arranged side ribs.

The side ribs and the side longitudinal girders are in cross connection, and the stability is improved by reinforcing connection of the upper and lower elbow preventing plates.

And the broadside stringers are horizontally arranged according to the interval of every 3 broadside ribs, and two ends of each broadside stringer are connected with watertight bulkheads and respectively extend to the bow and the stern, so that the total longitudinal strength is improved.

The upper end of the side rib is connected with the box-type unit in a reinforcing mode through the toggle plate, the connecting position of the lower end of the side rib and the double-layer bottom is provided with the irregular triangular toggle plate for smooth transition, load can be favorably buffered and transferred to the double-layer bottom, strength is improved, and a supporting deck and a side structure can be reinforced.

The box type unit is internally provided with a whole solid web connected with four sides at a strong rib position, and horizontal reinforcing ribs and vertical reinforcing ribs are arranged at corresponding longitudinal rib positions to improve the bearing capacity, so that the box type unit can be butted with a cargo support on a deck to bear corresponding external force.

And strong ribs which are vertically arranged are arranged below the box type unit, between the two decks and the double-layer bottom of the ship bottom. The distance between two to three longitudinal bones is lengthened at the joint of the upper end of the strong rib and the box type unit, the arc line at the bilge part of the ship at the lower end of the strong rib is transited and connected with the structure, and the distance between two to three longitudinal bones is lengthened. The joints of the strong ribs and the broadside longitudinal girders are connected through the brackets in a reinforced way, and meanwhile, the anti-toppling function is achieved.

And a fender structure which is approximately arc-shaped in the longitudinal direction is arranged between the main deck and the deck outside the box-type unit. The upper edge and the lower edge of the fender structure are in butt joint with longitudinal ribs inside the box-type units. Effectively improve topside intensity, play the effect of protection topside structure simultaneously.

And a fender structure which is approximately arc-shaped is arranged between the second plate and the inner bottom plate along the longitudinal direction at the lower edge of the outer side of the box-type unit. The upper edge and the lower edge of the fender structure are in butt joint with the two decks and the broadside longitudinal girders. The strength of the side can be effectively improved, and the side structure can be protected.

Three to four common rib position frame structures are arranged between every two strong rib position frame structures along the longitudinal direction of the ship, the structural type is strong and weak alternately and clearly layered, so that enough structural strength is guaranteed to meet the use target requirement; a box-type structure consisting of longitudinal ribs, cross beams, rib plates and longitudinal girders is arranged between the side plates of the common rib deck and the second deck to improve the local strength and torsional strength of the shipboard side of the ship deck. Meanwhile, a mixed skeleton type structure is used between the second deck and the inner bottom plate, the rib spacing is reduced, the number of ribs is increased, and the side longitudinal girders are arranged from top to bottom.

Compared with the prior art, the invention has the beneficial effects that: the integral bearing capacity is increased, and the side bearing capacity is improved; the longitudinal fender plays a role in protecting a side structure.

Drawings

FIG. 1 is a cross-sectional view of a conventional rib site of a hull side structure of a semi-submersible multi-functional transport assembly and disassembly vessel;

FIG. 2 is a cross-sectional view of a strong rib of a hull side structure of a semi-submersible multifunctional transport assembly and disassembly vessel;

FIG. 3 is a top view of the broadside reinforcement area.

The structure comprises a shell 1, a deck 2, two decks 3, a double-layer bottom 4, a longitudinal bulkhead 5, a box-type unit 6, a broadside stringer 7, ribs 8, an anti-tilt toggle plate 9, a toggle plate 10, an arc toggle plate 11, a solid web 12, a horizontal reinforcing rib 13, a vertical reinforcing rib 14, a strong rib 15, a longitudinal rib 16, a cross beam 17, a rib plate 18, a deck longitudinal truss 19, a broadside longitudinal fender structure 20, an inter-deck longitudinal truss 21 and an inner bottom plate 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In addition, the hull structure style, size, proportion, etc. shown in the drawings are only used for matching the contents of the present invention to clearly and completely express the description, and are not used for the size of the construction of the actual ship, so the actual significance in the technology is not provided, and the view direction is referred to the view of fig. 1.

A hull side structure of a semi-submersible multifunctional transport assembly and disassembly ship is disclosed as shown in figures 1 and 2 and comprises a hull shell 1, a main deck 2, a deck plate 3, a double-layer bottom 4, a longitudinal bulkhead 5 and a box-type unit 6. The double-layer bottom 4 is connected with the bottom of the hull shell 1, the main deck 2 is arranged at the upper part of the hull shell 1, and the two decks 3 are arranged below the main deck 2. In the cabin, a longitudinal bulkhead 5 is arranged between the double-layer bottom 4 and the second deck 3, the box-type unit 6 is connected with the top of the hull shell 1, beams 17 are respectively arranged on the upper part and the lower part of the box-type unit 6 in the common rib position and are respectively connected with the main deck 2 and the second deck 3, and rib plates 18 are respectively arranged on the left side and the right side between the two beams 17 for connection and support. The box-type unit 6 is provided with a manhole on the longitudinal girder 21 between decks near the middle of the ship, so that people can conveniently go in and out for inspection, maintenance and the like. The inboard side rib 8 that sets up of hull shell 1 is with the intensity of improving. The side ribs 8 are connected with a lower cross beam 17 of the box-shaped unit 6, and the bottoms of the side ribs 8 are connected with the double-layer bottom 4; the spacing between adjacent broadside ribs is between 600 and 800 millimeters. The hull shell 1 is provided with a plurality of side longitudinal girders 7 which are horizontally arranged from top to bottom, and two ends of the side longitudinal girders 7 respectively extend to the bow and the stern so as to enhance the total longitudinal strength and simultaneously can be used for supporting side ribs 8 which are vertically arranged. And a side stringer 7 which is horizontally arranged is arranged between every 3 side ribs, and two ends of the side stringer 7 are connected with watertight bulkheads and respectively extend towards the bow and the stern, so that the total longitudinal strength is improved. The side ribs 8 are crosswise connected with the side longitudinal girders 7 and are connected through an upper elbow-preventing plate 9 and a lower elbow-preventing plate 9. The upper end of the side rib 8 is connected with the box-shaped unit 6 through the elbow plate 10 in a reinforced mode, the lower end of the side rib is connected with the double-layer bottom 4 through the irregular triangular elbow plate 11 in a smooth transition mode, load can be transmitted to the double-layer bottom 4 in a moderating mode, strength is improved, and a supporting deck and a side can be reinforced.

The box-type unit 6 is internally provided with a whole solid web 12 connected with four sides, and horizontal reinforcing ribs 13 and vertical reinforcing ribs 14 are arranged at corresponding longitudinal ribs 16 to improve the bearing capacity, so that the box-type unit can be connected with a cargo support to bear corresponding external force. And a vertically arranged strong rib 15 is arranged between the two deck boards 3 and the double-layer bottom 4 of the ship bottom below the box type unit 6. The distance between two to three longitudinal bones is lengthened at the joint of the upper end of the strong rib 15 and the box-type unit 6, and the lower end of the strong rib is in arc transition at the bilge of the ship and is connected to the ship bottom structure. The joints of the strong ribs 15 and the side stringers 7 are horizontally arranged and reinforced by toggle plates 18 along the longitudinal direction, and simultaneously, the anti-toppling function is realized. Side longitudinal fender structures 20 arranged in the longitudinal direction are respectively arranged at the outer shells 1 of the sides between the deck 2 and the deck 3 and between the deck 3 and the inner bottom plate 22, and play a role in protecting field structures.

According to the invention, three common rib position sections are arranged between the two strong rib position sections, and the structures are mutually connected and supported, so that enough structural strength is ensured to meet the loading requirement.

The strong crossbeam of most semi-submerged ship, self-navigation deck of barge is between 2 meters to 3.6 meters, this application semi-submerged formula multi-functional transportation dismouting ship's strong crossbeam interval set up to 2.4 meters, and the 16 intervals of longitudinal bone are about 800 millimeters generally. As shown in fig. 3, the distance between the main deck 2 and the deck 3 is typically around 2 to 3 meters. A row of deck stringers 19 are provided between the main deck 2 and the deck boards 3 near the side planks from bow to stern for improving the overall longitudinal strength of the hull. A manhole with a standard size is formed in the deck longitudinal girder 19, and people can conveniently go in and out for inspection, maintenance and the like. Thus, the deck stringer 19 forms a box-like structure together with the side shell, the main deck 2 and the deck 3. The structure is internally reinforced by members such as the cross beams 17, the ribs 18, the stringers 16, and the reinforcing ribs, thereby improving the carrying capacity of the side deck. Side ribs are provided between the deck 3 and the inner bottom 22, down the box-type structure, at a distance of about 800 mm. Meanwhile, the side stringers 7 are disposed horizontally at intervals of 3 ribs 8. And two ends of the side longitudinal girder 7 are connected with watertight bulkheads, extend towards the bow and the stern respectively and participate in the total longitudinal strength. The joint of the side rib and the side stringer 7 is reinforced and connected through an anti-roll elbow plate.

The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made in the claims and the new descriptions of the present invention are also within the scope of the present invention.

Claims

1. The utility model provides a multi-functional transportation dismouting ship's of semi-submerged formula hull topside structure, its includes hull shell, main deck, two decks, double-deck end, vertical bulkhead and box unit, its characterized in that, the double-deck end is connected with hull shell bottom, hull shell upper portion sets up the main deck, two decks set up in the main deck below, set up vertical bulkhead between double-deck end and the second deck in the cabin, the box unit is connected with hull shell top, inside respectively sets up the crossbeam respectively on upper portion and lower part of box unit and is connected with main deck and second deck respectively, and left side and right side between two crossbeams set up floor joint support respectively.

2. The hull broadside construction of a semi-submersible multi-purpose transport assembly and disassembly vessel of claim 1, wherein the box units are manholes opened on the stringers near the midship.

3. The hull broadside structure of the semi-submersible multi-functional transport assembly and disassembly ship of claim 1, wherein broadside ribs are provided inside the hull, the broadside ribs are connected with the lower beams of the box-type units, and the bottoms of the broadside ribs are connected with the double-layer bottom.

4. The structure of claim 3, wherein the hull of the semi-submersible multi-purpose transport ship is provided with a plurality of horizontal side stringers from top to bottom, and the two ends of the side stringers extend to the bow and the stern respectively.

5. The hull broadside construction of the semi-submersible multi-purpose transport ship of claim 4, wherein the broadside ribs are connected with the broadside stringer crosswise and are connected by two upper and lower elbow preventing plates.

6. The hull broadside structure of the semi-submersible multifunctional transportation assembly and disassembly ship as claimed in claim 5, wherein the joints of the upper ends of the broadside ribs and the box-type units are provided with the brackets for reinforcement, and the joints of the lower ends and the double-layer bottom are provided with the irregular triangular brackets for smooth transition.

7. The hull broadside construction of the semi-submersible multi-functional transport ship of claim 6, wherein a one-piece solid web connected to four sides is provided inside the box unit, and horizontal and vertical stiffeners are arranged at corresponding longitudinal frame positions.

8. The hull broadside construction of the semi-submersible multi-functional transport assembly and disassembly ship of claim 6, wherein vertically arranged strong ribs are provided below the box unit, between the two decks and the double bottom of the ship bottom.

9. The hull broadside construction of the semi-submersible multi-functional transport ship according to claim 8, wherein the joints of the upper ends of said strong ribs and the box units are elongated by two to three longitudinal frame distances, and the lower ends of said strong ribs are curved at the bilges of the ship and are connected to the bottom structure.

10. The hull broadside construction of a semi-submersible multi-functional transport assembly and disassembly vessel of claim 9, wherein the joints of the strong ribs and the broadside stringers are reinforced by brackets.