Deck double-beam arch structure and construction method thereof

Abstract

The embodiment of the invention provides a deck double-beam arch structure and a construction method thereof. The deck double-beam arch structure comprises a first bevel beam arch and a second bevel beam arch. The first bevel beam arch is arranged on a main deck surface of a cargo hold area, and the first bevel beam arch extends from the center line of a deck to two broadsides to form a first drainage gradient; the second bevel beam arch is arranged on the deck surface of the living quarter, the initial height of the second bevel beam arch is lower than that of the first bevel beam arch, and a second drainage gradient is formed; a transition area is arranged at the junction of the cargo hold area and the living area, the transition area comprises a transition bevel point connected with the first bevel beam arch and the second bevel beam arch, and the transition bevel point is located at the FR41 rib position. According to the technical scheme, the problem of deck drainage can be solved, and meanwhile the influence of deck dressing filling weight is reduced.

Description

Technical Field

[0001] The technology of the present invention belongs to the technical field of ship design and manufacturing, and particularly relates to a double camber structure of a deck and a construction method thereof. Background Art

[0002] When designing a ship, it is necessary to consider coping with rainy weather. In order to avoid water accumulation on the deck, the deck surface is usually designed with a certain slope, from the middle to both sides along the sides from high to low. This slope design is called camber in the ship field.

[0003] There are two design methods for camber. One is the straight angled type, and the other is the arc type. Large ships generally adopt the straight angled type, and the deck plates are relatively thick, which is convenient for construction. The arc type is generally applicable to small inland river ships, which is convenient for construction and later deformation adjustment. Large ships generally have a molded breadth greater than a dozen meters and a length of more than one hundred meters. The actual open area is large. In order to facilitate rapid drainage, the height of the deck camber is designed to be a certain height between 500 - 700 mm, and it is designed according to the actual ship type. This camber design layout runs through from the bow to the stern.

[0004] In addition, according to the characteristics of the ship type, the stern is generally designed with a superstructure living area, and the first deck area of the living area continues the design of the high camber in the cargo hold area. During the construction of the living area, leveling is generally achieved through dressing, and this dressing is generally cement. Since the two sides of the living area are relatively wide, the corresponding height difference of the indoor slope is also relatively large. This requires a large amount of dressing for leveling, and the leveling of the dressing generates a large amount of unnecessary ship weight. Correspondingly, it also has a certain impact on the actual loading capacity of the ship.

[0005] Therefore, how to provide a double camber structure of a deck and a construction method thereof, which can solve the problem of deck drainage and at the same time reduce the influence of the weight of the deck dressing filling, has become an urgent technical problem to be solved. Summary of the Invention

[0006] The embodiments of the present invention provide a double camber structure of a deck and a construction method thereof, which can solve the problem of deck drainage and at the same time reduce the influence of the weight of the deck dressing filling.

[0007] In one embodiment of the present invention, a double camber structure of a deck is provided, including: a first angled camber and a second angled camber;

[0008] The first angled camber is arranged on the main deck surface of the cargo hold area, and the first angled camber extends from the deck center line to both sides to form a first drainage slope;

[0009] The second angled camber is arranged on the living area deck surface, and the starting height of the second angled camber is lower than that of the first angled camber to form a second drainage slope;

[0010] A transition area is provided at the junction of the cargo hold area and the living area. The transition area includes a transition corner point connecting the first corner beam arch and the second corner beam arch, and the transition corner point is located at the FR41 rib position.

[0011] Further, the beam arch height of the first corner beam arch is 500 mm to 700 mm, and the beam arch height of the second corner beam arch is reduced by 30% - 50% compared with the first corner beam arch.

[0012] Further, the transition corner point is connected to the ship's side by a structural strengthening member, and the structural strengthening member includes angle steel or T-shaped section continuously arranged longitudinally.

[0013] Further, the dressing layer on the deck surface of the living area has a thickness of 50 mm to 150 mm, and the dressing material is a lightweight cement-based composite material.

[0014] Further, the drainage slope angle of the second corner beam arch is 1.5° to 3.5°, and the slope angle difference from the first corner beam arch is controlled within ±0.5°.

[0015] Further, a water guide trough structure is provided in the transition area. The cross-section of the water guide trough structure is trapezoidal, the bottom width of the water guide trough structure is not less than 150 mm, and the longitudinal slope is not less than 2°.

[0016] Further, a honeycomb strengthening structure is provided below the deck surface of the living area. The unit size of the honeycomb strengthening structure is 300 mm × 300 mm, and the height matches the height of the second corner beam arch.

[0017] In another embodiment of the present invention, a construction method for a double beam arch structure of a deck is provided. Based on any one of the above-mentioned double beam arch structures of a deck, it includes:

[0018] S101. When the main deck in the cargo hold area is formed, the first corner beam arch is rolled synchronously;

[0019] S102. In the assembly stage of the living area deck, the second corner beam arch is fabricated by a hydroforming process;

[0020] S103. At the FR41 rib position, a laser positioning technology is used to determine the spatial coordinates of the transition corner point;

[0021] S104. The connecting plates in the transition area are processed by numerical control cutting;

[0022] S105. A sectional pre-outfitting process is adopted to complete the leveling construction of the dressing layer.

[0023] The beneficial effects brought by the present invention are as follows:

[0024] As can be seen from the above solution, the embodiment of the present invention provides a double beam arch structure of a deck and its construction method, including: a first angled beam arch and a second angled beam arch; the first angled beam arch is arranged on the main deck surface of the cargo hold area, and the first angled beam arch extends from the deck center line to both sides to form a first drainage slope; the second angled beam arch is arranged on the living area deck surface, and the starting height of the second angled beam arch is lower than that of the first angled beam arch to form a second drainage slope; a transition area is arranged at the junction of the cargo hold area and the living area, and the transition area includes a transition angled point connecting the first angled beam arch and the second angled beam arch, and the transition angled point is located at the FR41 rib position. The technical solution of the present invention can solve the problem of deck drainage and at the same time reduce the influence of the filling weight of the deck dressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of a double beam arch structure of a deck according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] As Figure 1 shown, Figure 1 It is a schematic diagram of a double beam arch structure of a deck according to an embodiment of the present invention.

[0028] Figure 1 In it, a double beam arch structure of a deck includes: a first angled beam arch and a second angled beam arch;

[0029] The first angled beam arch is arranged on the main deck surface of the cargo hold area, and the first angled beam arch extends from the deck center line to both sides to form a first drainage slope;

[0030] The second angled beam arch is arranged on the living area deck surface, and the starting height of the second angled beam arch is lower than that of the first angled beam arch to form a second drainage slope;

[0031] A transition area is arranged at the junction of the cargo hold area and the living area, and the transition area includes a transition angled point connecting the first angled beam arch and the second angled beam arch, and the transition angled point is located at the FR41 rib position.

[0032] In the embodiment of the present invention, a straight horizontal area (beam arch label 1) is set in the middle area as the highest point of the deck surface. Starting from the highest point of the deck and with the widest side of the ship's side as the edge point, the beam arch slope (beam arch label 2) is set. Beam arch label 3 is the highest point of the living area (from the stern bulkhead to FR41). Since the entire ship's side is continuous front and back, a folding point between the living area and the ship's side (the folding point between beam arch label 1 and beam arch label 4) is added at the FR41 rib position, which is the last position of the cargo hold opening. There is a height difference between this folding point and beam arch 3, and beam arch label 4 is set.

[0033] The technical solution of the present invention is simple in construction, completed during the manufacturing stage, without subsequent maintenance costs, and has strong adaptability.

[0034] In another embodiment of the present invention, the beam arch height of the first folding beam arch is 500 mm to 700 mm, and the beam arch height of the second folding beam arch is 30% - 50% lower than that of the first folding beam arch.

[0035] In another embodiment of the present invention, the transition folding point is connected to the ship's side through a structural strengthening member, and the structural strengthening member includes continuously longitudinally arranged angle steel or T-shaped steel.

[0036] In another embodiment of the present invention, the dressing layer on the deck surface of the living area is 50 mm to 150 mm thick, and the dressing material is a lightweight cement-based composite material.

[0037] To ensure the flatness of the room, the area of the lower beam arch is filled with cement dressing. The higher the beam arch, the more cement is required for filling. At present, two beam arch arrangement methods are adopted, which can save a large amount of dressing leveling compared with a single beam arch, and further reduce the manufacturing cost.

[0038] In another embodiment of the present invention, the drainage slope angle of the second folding beam arch is 1.5° to 3.5°, and the slope angle difference from the first folding beam arch is controlled within ±0.5°.

[0039] It can be understood that in other embodiments of the embodiment of the present invention, the drainage slope angle of the second folding beam arch can be adjusted within 1.5° to 3.5° according to the specific design situation, and the specific value is not specifically limited here.

[0040] In another embodiment of the present invention, a water guide groove structure is provided in the transition area. The cross-section of the water guide groove structure is trapezoidal, the bottom width of the water guide groove structure is not less than 150 mm, and the longitudinal slope is not less than 2°.

[0041] Furthermore, the area below the deck surface of the living area is provided with a honeycomb strengthening structure. The unit size of the honeycomb strengthening structure is 300 mm × 300 mm, and the height is matched with the height of the second camber beam.

[0042] In another embodiment of the present invention, a construction method for a double-camber deck structure is provided. Based on any one of the above-mentioned double-camber deck structures, it includes:

[0043] S101. When the main deck in the cargo hold area is formed, simultaneously roll the first camber beam.

[0044] S102. During the assembly stage of the living area deck, fabricate the second camber beam through a hydroforming process.

[0045] S103. At the FR41 rib position, use laser positioning technology to determine the spatial coordinates of the transition camber point.

[0046] S104. Numerically control the cutting to process the connecting plates in the transition area.

[0047] S105. Adopt a sectional pre-outfitting process to complete the leveling construction of the dressing layer.

[0048] In an embodiment of the present invention, the hydroforming pressure is controlled at 8 MPa to 12 MPa, the pressure holding time is not less than 30 min, and after forming, an ultrasonic thickness gauge is used for plate thickness detection.

[0049] In an embodiment of the present invention, a double-camber deck structure and its construction method are provided, including: a first camber beam and a second camber beam; the first camber beam is arranged on the main deck surface in the cargo hold area, and the first camber beam extends from the deck center line to both sides to form a first drainage slope; the second camber beam is arranged on the deck surface of the living area, and the starting height of the second camber beam is lower than that of the first camber beam to form a second drainage slope; a transition area is arranged at the junction of the cargo hold area and the living area, and the transition area includes a transition camber point connecting the first camber beam and the second camber beam, and the transition camber point is located at the FR41 rib position. The technical solution of the present invention can solve the problem of deck drainage and at the same time reduce the influence of the filling weight of the deck dressing.

[0050] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A double-beam arch structure of a deck, characterized in that: The double beam arch structure comprises: a first angled beam arch and a second angled beam arch; The first angled beam arch is arranged on the main deck surface of the cargo hold area, and the first angled beam arch extends from the centerline of the deck to both sides to form a first drainage slope; The second angled beam arch is arranged on the deck surface of the living area, and the starting height of the second angled beam arch is lower than that of the first angled beam arch, so as to form a second drainage slope; A transition area is arranged at the junction of the cargo hold area and the living area, and the transition area includes a transition angle point connecting the first angle beam arch and the second angle beam arch, and the transition angle point is located at the FR41 rib position.

2. A deck double beam arch structure according to claim 1, characterized in that: The arch height of the first angled arch beam is 500 mm to 700 mm, and the arch height of the second angled arch beam is 30% to 50% lower than that of the first angled arch beam.

3. A deck double beam arch structure according to claim 1, characterized in that: The transition angle point is connected to the side of the hull through a structural reinforcement member, and the structural reinforcement member includes angle steel or T-shaped material arranged continuously in the longitudinal direction.

4. A deck double beam arch structure according to claim 1, characterized in that: The dressing layer of the living area deck surface has a thickness of 50 mm to 150 mm, and the dressing material is a lightweight cement-based composite material.

5. The double-beam arch structure of a deck according to claim 1, characterized in that: The drainage slope angle of the second angled beam arch is 1.5° to 3.5°, and the slope angle difference between the second angled beam arch and the first angled beam arch is controlled within the range of ±0.5°.

6. The double-beam arch structure of a deck according to claim 1, characterized in that: The transition area is provided with a water guide groove structure, the cross section of the water guide groove structure is trapezoidal, the groove bottom width of the water guide groove structure is not less than 150 mm, and the longitudinal slope is not less than 2°.

7. The double-beam arch structure of a deck according to claim 1, characterized in that: A honeycomb reinforcement structure is arranged below the deck surface of the living area. The unit size of the honeycomb reinforcement structure is 300mm×300mm, and the height matches the height of the second angle beam arch.

8. A construction method for a double-beam arch structure of a deck, based on a double-beam arch structure of a deck as claimed in any one of claims 1 to 7, characterized in that: The method comprises: S101. When the main deck in the cargo hold area is formed, the first angle beam arch is rolled synchronously; S102, during the living area deck assembly stage, manufacturing a second angle beam arch by a hydraulic forming process; S103, at the FR41 rib position, the spatial coordinates of the transition corner point are determined using laser positioning technology; S104, processing the connecting plate in the transition area by numerical control cutting; S105. Use the segmented pre-outfitting process to complete the leveling construction of the dressing layer.

Images