Method of transporting deck sections
By transporting deck sections using pallet stacking and fixed connections, the problem of low transportation efficiency in existing technologies is solved, achieving efficient and safe transport of deck sections and reducing resource consumption and losses.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD
- Filing Date
- 2025-02-28
- Publication Date
- 2026-05-15
AI Technical Summary
The existing process of transporting deck sections is inefficient, has a low transport volume, and occupies too much dry dock gantry crane and barge resources, resulting in low construction efficiency.
Deck sections are transported by palletizing, stacking and securing them. The use of pallets and layering increases the number of deck sections that can be lifted or transported in a single operation, reduces the risk of slippage, and uses fasteners to secure them to the barge deck, avoiding damage from direct welding.
It increases the number of deck sections that can be lifted or transported in a single operation, saves storage space, increases transportation efficiency and safety, and reduces damage to deck sections and material costs.
Smart Images

Figure CN119821625B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of shipbuilding, and in particular to a method for transporting deck sections. Background Technology
[0002] The demand for car carriers is increasing, as these vessels are large, typically with 10-14 decks. They consist of numerous deck sections, accounting for approximately three-quarters of the ship's length (three out of four sections). To improve construction efficiency and shorten the construction cycle, about 30% of the deck sections need to be built off-site. This off-site deck section construction process involves building the sections at shipyard A, then transporting them by barge to shipyard B's dock, and finally hoisting them to their designated locations. This includes three main transportation processes:
[0003] Process 1: The cargo is hoisted from the platform to the barge at the A factory dock.
[0004] Process 2: Barge shipping from Plant A to Plant B.
[0005] Process 3: The cargo is hoisted from the barge to the platform at the B factory dock.
[0006] The current transportation method is as follows: the deck sections are transported from the workshop of Factory A to the dock, and then the gantry crane is used to lift the deck sections one by one onto the barge. The deck sections are then secured as necessary, and the barge transports them from Factory A to Factory B. At the dock of Factory B, the gantry crane is used to lift the deck sections one by one onto the platform.
[0007] Existing transportation methods have the following drawbacks:
[0008] 1. The hoisting process consumes a large amount of dockside gantry crane resources. Dockside gantry cranes are an extremely scarce resource in shipyards. Currently, each time a deck section is hoisted from a barge to the dock platform using existing transportation methods, it occupies these cranes. Considering the future demand for large-scale transportation of deck sections for car carriers, the existing transportation methods are very inefficient and will consume a large amount of dockside gantry crane resources.
[0009] 2. Excessive use of barge resources. The current transportation method involves hoisting deck sections one by one onto the barge deck at Terminal A. If only one layer of deck sections is placed, the number of deck sections a single barge can transport is very limited. This results in poor transportation efficiency. Summary of the Invention
[0010] The technical problem to be solved by the present invention is to overcome the shortcomings of low efficiency and small transport volume in the existing technology of transporting deck sections, and to provide a method for transporting deck sections.
[0011] The present invention solves the above-mentioned technical problems through the following technical solution:
[0012] A method for transporting deck sections, the method comprising:
[0013] Step 1: Load multiple deck sections into pallets, and stack the multiple deck sections separately;
[0014] Step 2: Secure the stacked deck sections to prevent them from falling out of their original positions;
[0015] Step 3: Transport and / or hoist the pallet together with the deck section to the target location.
[0016] This solution increases the number of deck sections that can be transported in a single hoisting operation by using pallets for transporting deck sections. Stacking the deck sections saves storage space and increases the number of sections that can be transported at once using pallets. Securely fastening the deck sections prevents them from slipping off the pallets. This solution improves transport efficiency by increasing the number of deck sections that can be hoisted or transported in a single operation through pallet and stacked arrangement of sections.
[0017] Preferably, step 1 specifically includes the following steps:
[0018] Step 101: Load the first deck section into the pallet and place it on top of the pallet;
[0019] Step 102: Load the next deck segment into the pallet and place it on top of the previous deck segment;
[0020] Step 103: Repeat steps 101-102 until all the deck sections to be transported are loaded into the pallet.
[0021] In this solution, multiple deck sections are loaded into a pallet sequentially and stacked from bottom to top, saving the floor space occupied by the deck sections and allowing multiple deck sections to be accommodated in one pallet, thus improving transportation efficiency.
[0022] Preferably, padding is provided between the multiple deck sections;
[0023] And / or, a liner is placed between the deck section and the pallet.
[0024] In this solution, by setting up a pad, the deck sections abut against the pad instead of directly against the deck sections or trays below, thereby preventing scratches between deck sections or between deck sections and trays due to relative movement and friction, which could damage the surface of the deck sections or trays.
[0025] Preferably, the padding is made of wood.
[0026] Preferably, step 2 specifically includes:
[0027] At least one end of each deck segment is provided with a lashing hole, and adjacent deck segments are lashed together through the lashing hole to fix the multiple deck segments together.
[0028] The stacked deck sections are then bound and secured to the pallet.
[0029] In this solution, by creating lashing holes at one end of each deck segment, adjacent deck segments can be tied together in pairs through these holes, thus securing multiple deck segments together. This increases the stability of stacked deck segments during transportation and reduces the risk of slippage or detachment from the pallet. By lashing multiple deck segments together with the pallet, the deck segments are fixed to the pallet, increasing safety and stability during transportation.
[0030] Preferably, step 3 specifically includes:
[0031] The pallet, together with the deck sections, will be transported and / or hoisted to the dock.
[0032] The pallet, along with the deck section, was hoisted onto the barge deck;
[0033] Secure the pallet, along with the deck section, to the barge deck;
[0034] The pallets and deck sections were transported by barge to a dock near the target location.
[0035] Release the securing device and remove the pallet along with the deck section from the barge deck, then hoist and / or transport the pallet along with the deck section to the target location.
[0036] Preferably, in step 100, multiple deck sections are loaded into a pallet, such that the main beams of the deck sections are positioned above the load-bearing beams of the pallet.
[0037] In this design, by positioning the main beams of the deck sections directly above the load-bearing beams of the pallet, the main load-bearing components of the deck sections and the main load-bearing components of the pallet are positioned in a corresponding manner, thereby transferring the weight of the deck sections to the pallet more stably and increasing the overall structural stability and load-bearing capacity.
[0038] Preferably, the step of securing the pallet together with the deck section to the barge deck further includes:
[0039] Multiple fasteners are provided along the outer periphery of the tray, and the two ends of the fasteners are fixedly connected to the tray and the barge deck, respectively.
[0040] In this solution, multiple fasteners are installed around the outer perimeter of the pallet to secure it to the barge deck. This ensures that the deck sections, along with the pallet, are firmly connected to the barge deck, preventing relative movement between the pallet and the barge deck during transport and thus increasing the reliability of the transport method. The use of fasteners eliminates the need for direct welding of the deck sections, reducing damage and improving efficiency.
[0041] Preferably, in the step of providing a plurality of fasteners along the outer periphery of the pallet, with both ends of the fasteners being fixedly connected to the pallet and the barge deck respectively,
[0042] The fastener has at least two extensions of the same length, and the extensions are symmetrically distributed at the ends of the fastener.
[0043] In this design, by having the fastener have two extensions of equal length symmetrically distributed at its ends, the operator can weld one end of the fastener to the pallet and the other end to the barge deck when securing the pallet. This facilitates the secure connection between the pallet and the barge deck.
[0044] Preferably, in the step of providing a plurality of fasteners along the outer periphery of the pallet, with both ends of the fasteners being fixedly connected to the pallet and the barge deck respectively,
[0045] The outer sidewall of the tray has multiple connection holes, and each extension has a fixing hole;
[0046] One of the extensions of the fastener is welded to the barge deck;
[0047] Another extension of the fastener is bolted to the tray through the fixing hole and the connecting hole, so that the deck section together with the tray is secured to the barge deck.
[0048] In this solution, connecting holes are made on the outer sidewall of the pallet to facilitate bolt connection between the fixing holes on the extension and the connecting holes. This makes it easier to fix the deck sections together with the pallet to the barge deck, reducing the amount of welding required. When it is necessary to remove the fixing of the other end of the extension, a portion of the extension will be cut and worn. However, since the extensions on the fastener all have fixing holes and are symmetrically distributed, the welded end and the bolted end can be swapped the next time the fastener is used. This avoids the problem of the extension length being affected by the cutting loss when removing the welded fixing, making it difficult to match the fixing height. This increases the number of times the fastener can be used and reduces the consumable cost of this transportation method.
[0049] A transport assembly comprising a pallet as described above and a deck segment positioned above the pallet.
[0050] The positive and progressive effects of this invention are as follows: By using pallets to transport deck sections, the transfer of deck sections on pallets can be achieved through hoisting, thereby increasing the number of deck sections that can be transported in a single hoisting operation. Stacking deck sections saves storage space and further increases the number of deck sections that can be transported at once using pallets. Securely fastening the deck sections prevents them from slipping off the pallets. This solution improves transportation efficiency by increasing the number of deck sections that can be hoisted or transported in a single operation through pallet and stacked arrangement of sections. Attached Figure Description
[0051] Figure 1 This is a schematic flowchart of a transportation method provided in a preferred embodiment of the present invention.
[0052] Figure 2 This is a top view of the tray according to a preferred embodiment of the present invention.
[0053] Figure 3 This is a side view of the tray according to a preferred embodiment of the present invention.
[0054] Figure 4 This is a schematic diagram of land transportation of a pallet according to a preferred embodiment of the present invention.
[0055] Figure 5 This is a top view of the pallet-loading deck sections according to a preferred embodiment of the present invention.
[0056] Figure 6 This is a side view of a preferred embodiment of the present invention during the hoisting of pallet-loaded deck sections.
[0057] Figure 7 This is a schematic diagram of a fixing structure for the pallet and barge deck of the present invention.
[0058] Figure 8 This is a schematic diagram illustrating the fixed connection between the pallet and the barge deck, provided as a preferred embodiment of the present invention.
[0059] Explanation of reference numerals in the attached figures:
[0060] Tray 1
[0061] Lifting Unit 11
[0062] Beam 12
[0063] Guardrail 13
[0064] Deck Section 2
[0065] Power Head 3
[0066] Barge Deck 4
[0067] Prelude 5
[0068] Channel steel 6
[0069] Fastener 7
[0070] Fixing hole 71
[0071] Extension 72
[0072] Connection hole 17
[0073] 8 slings Detailed Implementation
[0074] The present invention will be further described below with reference to the accompanying drawings and by way of embodiments, but the present invention is not limited to the scope of the embodiments thereon.
[0075] like Figures 1-8 As shown, this embodiment provides a method for transporting deck section 2, the method including:
[0076] S1: Load multiple deck sections 2 into pallet 1, and stack the multiple deck sections 2;
[0077] S2: Secure the stacked deck segment 2 to prevent deck segment 2 from falling out of its original position;
[0078] S3: Transport and / or hoist pallet 1 together with deck section 2 to the target location.
[0079] In this embodiment, the number of deck segments 2 that can be transported in a single hoisting operation is increased by using pallets 1 for transporting the deck segments 2. Stacking the deck segments 2 saves placement space and increases the number of deck segments 2 that can be transported at once using pallets 1. The deck segments 2 are secured to prevent them from slipping off the pallets 1. This solution, through the use of pallets 1 and the stacked arrangement of segments, increases the number of deck segments 2 that can be hoisted or transported in a single operation, thereby improving transportation efficiency.
[0080] like Figures 2-3 As shown, in one specific embodiment of pallet 1, pallet 1 is a rectangular grid structure composed of intersecting beams 12. This grid structure provides a stable frame structure to support the deck section 2. Using beams 12 to form the main body of the load-bearing component reduces the weight of the transport device, decreases the material required to manufacture the load-bearing component, and increases the load-bearing capacity and stability during hoisting. Hoisting sections 11 are provided around pallet 1 for hoisting it. The pallet also has guardrails 13, which are distributed circumferentially around the perimeter of pallet 1 to prevent the deck section 2 from slipping during transport.
[0081] In other embodiments, the pallet 1 can also be other shapes, including circular, elliptical, and arc-shaped, and can also serve to support multiple deck sections 2 for hoisting and / or transportation, thereby increasing transportation efficiency. Those skilled in the art can design or adopt pallet 1 with other structures as needed.
[0082] like Figure 4 As shown, in this embodiment, the transportation and hoisting in S3 include, but are not limited to, transporting pallet 1 of the loading deck section 2 to the dock, hoisting pallet 1 to the barge deck 4, hoisting pallet 1 from the barge deck 4 to the dock, and hoisting or transporting pallet 1 to the target location. During hoisting, as... Figure 4 As shown, the lifting unit 11 is connected to the sling 8 and the pallet 1 is lifted. In one implementation of land transportation, the pallet 1 can be placed on the power unit 3 or a flatbed truck and transported to or from the dock. In other implementations, the operator can choose the specific transportation method, route, and transportation sequence as needed.
[0083] Specifically, S1 includes the following steps:
[0084] S101: Load the first deck segment 2 into pallet 1 and place it on top of pallet 1;
[0085] S102: Load the next deck segment 2 into pallet 1 and place it on top of the previous deck segment 2;
[0086] S103: Repeat S101-S102 until all the deck sections 2 to be transported are loaded into pallet 1.
[0087] like Figures 5-6 As shown, in this embodiment, multiple deck segments 2 are loaded into the pallet 1 in sequence, and by stacking them from bottom to top, the floor space occupied by the deck segments 2 is saved, so that multiple deck segments 2 can be accommodated in one pallet 1, thereby improving transportation efficiency.
[0088] like Figure 6 As shown, a paving 5 is installed between multiple deck sections 2;
[0089] In this embodiment, the pallet 1 has a mesh structure. It is not easy to place a padding 5 on the beam 12 of the pallet 1. In this embodiment, by placing a padding 5, the deck segment 2 abuts against the padding 5, rather than directly against the deck segment 2 below or the pallet 1. This prevents scratching between deck segments 2 or between deck segments 2 and the pallet 1 due to relative movement and friction, thus preventing damage to the surface of the deck segment 2 or the pallet 1. In other embodiments, a padding 5 can also be placed between the deck segment 2 and the pallet 1.
[0090] like Figure 3As shown, when transporting pallet 1, a pad 5 can be placed between pallet 1 and power head 3 as a load-bearing buffer to reduce damage caused by friction.
[0091] As one embodiment of the padding 5, the padding 5 in this embodiment is made of wooden blocks. In other embodiments, other padding 5 materials, such as carbon fiber composite materials and PVC foam boards, can also be used. All of these materials can bear the load and prevent the steel from rubbing against each other and causing scratches and damage.
[0092] like Figure 6 As shown, S2 specifically includes:
[0093] At least one end of the deck segment 2 is provided with a lashing hole (not shown in the figure), and adjacent deck segments 2 are tied together in pairs through the lashing hole to fix the multiple deck segments 2 together.
[0094] The stacked deck sections 2 are tied and secured to the pallet 1 as a whole.
[0095] In this embodiment, by opening a binding hole at one end of the deck segment 2, adjacent deck segments 2 can be bound together in pairs through the binding hole, thereby fixing multiple deck segments 2 together and increasing the stability of the stacked deck segments 2 during transportation, reducing the risk of the deck segments 2 slipping or falling off on the pallet 1. By binding and fixing multiple deck segments 2 together to the pallet 1, the deck segments 2 are fixed to the pallet 1, increasing the safety and stability during transportation.
[0096] like Figures 5-6 As shown, S3 specifically includes:
[0097] Transport and / or hoist pallet 1 together with deck section 2 to the dock;
[0098] The pallet 1, along with the deck section 2, was hoisted onto the barge deck 4;
[0099] Secure pallet 1 together with deck section 2 to barge deck 4;
[0100] Pallet 1 and deck section 2 are transported by barge to a dock near the target location;
[0101] Release the anchor and unload pallet 1 along with deck section 2 from barge deck 4, and hoist and / or transport pallet 1 along with deck section 2 to the target location.
[0102] In S100, multiple deck sections 2 are loaded into pallet 1, so that the main beams (not shown in the figure) of the deck sections 2 are placed above the load-bearing beams of pallet 1.
[0103] In this embodiment, by positioning the main beam of the deck segment 2 directly above the load-bearing beam of the pallet 1, the main load-bearing components of the deck segment 2 and the main load-bearing components of the pallet 1 are positioned in a corresponding manner, thereby transferring the weight of the deck segment 2 to the pallet 1 more stably and increasing the overall structural stability and load-bearing capacity.
[0104] The step of securing pallet 1 together with deck section 2 to barge deck 4 specifically includes:
[0105] Multiple fasteners 7 are provided along the outer periphery of the pallet 1, and the two ends of the fasteners 7 are fixedly connected to the pallet 1 and the barge deck 4 respectively.
[0106] In this embodiment, multiple fasteners 7 are installed around the outer periphery of the pallet 1 to secure it to the barge deck 4. This ensures that the deck section 2, along with the pallet 1, is fixedly connected to the barge deck 4, preventing relative movement between the pallet 1 and the barge deck 4 during barge transport and thus preventing them from detaching from their loading positions, thereby increasing the reliability of the transport method. Using fasteners 7 for the fixed connection eliminates the need for direct welding of the deck section 2, reducing damage to the deck section 2 and improving efficiency.
[0107] like Figure 7 One embodiment of the fixed connection shown uses channel steel 6. Channel steel 6 is installed around the outer perimeter of the pallet 1, and then welded to the beam 12 of the pallet 1 and the barge deck 4, thereby fixing the pallet 1 together with the deck section 2 to the barge deck 4. This connection method also eliminates the need for direct welding and fixing of the deck section 2, reducing damage to the deck section 2.
[0108] like Figure 8 As shown, another specific embodiment of the fastener 7 is provided, namely, in the step of providing multiple fasteners 7 along the outer periphery of the tray 1, with both ends of the fastener 7 being fixedly connected to the tray 1 and the barge deck 4 respectively,
[0109] The fastener 7 has at least two extensions 72 of equal length, symmetrically distributed at its ends. By having two extensions 72 of equal length symmetrically distributed at its ends, the operator can weld one end of the extension 72 to the pallet 1 and the other end to the barge deck 4 when securing the pallet 1 with the fastener 7. This facilitates the secure connection between the pallet 1 and the barge deck 4.
[0110] like Figure 8 As shown, in the step of setting multiple fasteners 7 along the outer periphery of the pallet 1, with both ends of the fasteners 7 being fixedly connected to the pallet 1 and the barge deck 4 respectively,
[0111] The outer sidewall of the tray 1 is provided with a connection hole 17, and each extension 72 is provided with a fixing hole 71;
[0112] One of the extensions 72 of the fastener 7 is welded to the barge deck 4;
[0113] Another extension 72 of the fastener 7 is bolted to the tray 1 through the fixing hole 71 and the connecting hole 17, so that the deck section 2 together with the tray 1 is fixed to the barge deck 4.
[0114] In this solution, connecting holes 17 are provided on the outer sidewall of the pallet 1 to facilitate bolt connection between the fixing holes 71 on the extension 72 and the connecting holes 17. This makes it easier to fix the deck section 2 along with the pallet 1 to the barge deck 4, reducing the amount of welding required. When it is necessary to remove the fixing of the other end of the extension 72 of the fastener 7, a portion of the extension 72 will be cut and worn. However, since all extensions 72 on the fastener 7 have fixing holes 71 and the extensions 72 are symmetrically distributed, the welding end and the bolted end can be swapped the next time the fastener 7 is used. This avoids the problem of the extension 72's length being affected by the cutting wear during the removal of the welding fixing, making it difficult to match the fixing height. Compared with the implementation using channel steel 6, this increases the number of times the fastener 7 can be used, reducing the material cost of this transportation method.
[0115] In the specific implementation process, those skilled in the art can design and adjust the shape, quantity and arrangement of the fasteners 7 as needed.
[0116] A transport assembly includes a pallet 1 as described above and a deck segment 2, the deck segment 2 being positioned above the pallet 1.
[0117] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship of the device or element during normal use. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation at any time, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention in this respect.
[0118] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.
Claims
1. A method for transporting deck sections, characterized in that, The transportation method includes: Step 1: Load multiple deck sections into pallets, and stack the multiple deck sections separately; Step 100: Load multiple deck sections into a pallet, so that the main beams of the deck sections are positioned above the load-bearing beams of the pallet. Step 2: Secure the stacked deck sections to prevent them from detaching from their original positions; Specifically, at least one end of each deck segment is provided with a binding hole, and adjacent deck segments are bound together in pairs through the binding holes to fix the multiple deck segments together; the stacked deck segments are then bound and fixed to the pallet as a whole. Step 3: Transport and / or hoist the pallet together with the deck section to the target location; Step 3 specifically includes: The pallet, together with the deck sections, will be transported and / or hoisted to the dock. The pallet, along with the deck section, was hoisted onto the barge deck; Secure the pallet, along with the deck section, to the barge deck; The pallets and deck sections were transported by barge to a dock near the target location. Release the anchor and remove the pallet along with the deck section from the barge deck, then hoist and / or transport the pallet along with the deck section to the target location.
2. The transportation method as described in claim 1, characterized in that, Step 1 specifically includes the following steps: Step 101: Load the first deck section into the pallet and place it on top of the pallet; Step 102: Load the next deck segment into the pallet and place it on top of the previous deck segment; Step 103: Repeat steps 101-102 until all the deck sections to be transported are loaded into the pallet.
3. The transportation method as described in claim 1, characterized in that, In step 1, padding is laid between the multiple deck sections; And / or, a liner is placed between the deck section and the pallet.
4. The transportation method as described in claim 3, characterized in that, The padding is made of wooden blocks.
5. The transportation method as described in claim 1, characterized in that, The step of securing the pallet together with the deck section to the barge deck further includes: Multiple fasteners are provided along the outer periphery of the tray, and the two ends of the fasteners are respectively fixedly connected to the tray and the barge deck; The fastener has at least two extensions of the same length, and the extensions are symmetrically distributed at the ends of the fastener.
6. The transportation method as described in claim 5, characterized in that, In the step of providing multiple fasteners along the outer periphery of the pallet, with both ends of the fasteners being fixedly connected to the pallet and the barge deck respectively, The outer sidewall of the tray has multiple connection holes, and each extension has a fixing hole; One of the extensions of the fastener is welded to the barge deck; Another extension of the fastener is bolted to the tray through the fixing hole and the connecting hole, so that the deck section together with the tray is secured to the barge deck.