Truss type structure platform of polar transport ship and assembling method

Abstract

The invention discloses a polar region transport ship truss type structure platform which comprises a lower inclined support, a supporting toggle plate, a protective coaming, a lower platform, a connecting base plate, a connecting toggle plate, a middle vertical supporting column, a middle inclined support, a middle platform, an upper vertical supporting column, an upper inclined support, a hoisting eye plate and an upper platform. The lower platform, the lower inclined supports, the supporting toggle plates, the protective surrounding plates and the connecting base plates are assembled to form a lower structure of the truss type platform, the middle platform, the connecting toggle plates, the middle vertical supporting columns and the middle inclined supports are assembled to form a middle structure of the truss type platform, and the upper platform, the upper vertical supporting columns, the upper inclined supports and the hoisting eye plates are assembled to form an upper structure of the truss type platform. The truss type platform lower structure, the truss type platform middle structure and the truss type platform upper structure are assembled together. Fatigue strength damage to a hull structure is avoided, and meanwhile, the size and form of the structural platform are optimized by combining the characteristics of multi-layer platform assembly and a truss type structure, so that the rigidity and stability of the structural platform are improved.

Description

Technical Field

[0001] The invention relates to a polar transport ship truss structure platform and an assembling method thereof. Background Art

[0002] At present, due to the different sailing routes of polar transport ships from those of conventional transport ships, they need to pass through the extremely cold Arctic region, which has particularities in terms of material application. Therefore, considering the mechanical properties of steel at low temperatures is of utmost importance. When the ship is unloaded, the hull and its strong components exposed to the air, including the structural platform and equipment base, are made of steel grade E or above to ensure that the mechanical properties of the material are not reduced at a low temperature of minus 40 degrees Celsius, and to meet the requirements of the total longitudinal strength and local rigidity of the ship; according to the layout of the main deck of the ship, the sea conditions and temperature of the navigation area, and the weight of the hoisted equipment or objects, the steel grade used is E or above. The size and height of the structural platform are determined according to the requirements of quantity and shape. The larger the size and the higher the height of the structural platform, the greater the dynamic load it will be subjected to, the more complex the working conditions will be, and the higher the requirements for its strength, rigidity and stability will be. When the ship is operating or sailing, the strength and rigidity of the structural platform must meet the dynamic loads generated by itself and the equipment or objects, and these loads must be effectively transferred to the hull structure to avoid fatigue strength damage to the hull structure. At the same time, combined with the characteristics of multi-layer platform assembly and truss structure, the size and form of the structural platform are optimized to improve its rigidity and stability. Summary of the invention

[0003] The purpose of the present invention is to provide a polar transport ship truss structure platform and an assembly method which has a novel structure, reasonable layout, beautiful appearance, good rigidity and stability, and meets the requirements of hoisting equipment or objects.

[0004] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a polar transport ship truss structure platform, comprising a lower inclined support (1), a supporting bracket (2), a protective coaming (3), a lower platform (4), a connecting pad (5), a connecting bracket (6), a neutral pillar (7), a middle inclined support (8), a middle platform (9), an upper pillar (10), an upper inclined support (11), a lifting eye plate (12) and an upper platform (13), wherein the lower platform (4) is connected to the lower inclined support (1), the ... The lower structure of the truss platform is assembled with the protective enclosure (2), the connecting pad (3), and the connecting pad (5); the middle platform (9) is assembled with the connecting toggle plate (6), the neutral support (7), and the middle oblique support (8) to form the middle structure of the truss platform; the upper platform (13) is assembled with the upper support (10), the upper oblique support (11), and the lifting eye plate (12) to form the upper structure of the truss platform; the lower structure of the truss platform, the middle structure of the truss platform, and the upper structure of the truss platform are assembled together.

[0005] After being assembled, the truss platform lower structure, the truss platform middle structure and the truss platform upper structure are aligned with the side outer plate (14) and the reinforcement structure (16) of the main deck (15) and fixedly connected to form a semi-cantilever truss structure platform extending out from the side of the ship.

[0006] The lower platform (4) is provided with a square opening (17) for placing or lifting equipment or objects.

[0007] The protective enclosure (3) is installed around a square opening (17) on the lower platform (4), and the square opening (17) is trumpet-shaped.

[0008] The connecting pad (5) is installed between the lower platform (4) and the side outer plate (14), and a plug welding hole for increasing the welding area of ​​the connecting pad (5) is opened on the connecting pad (5).

[0009] The middle platform (9) is provided with a circular opening (18) for conveying slings and steel wire ropes.

[0010] The lower inclined support (1), the lower platform (4), the neutral pillar (7), the middle inclined support (8), the middle platform (9), the upper pillar (10), the upper inclined support (11) and the upper platform (13) are all truss structures composed of I-shaped steel beams.

[0011] The lower platform (4) and the middle platform (9) are provided with grids (19).

[0012] Another technical solution adopted by the present invention to achieve the above-mentioned purpose is: a method for assembling a truss structure platform of a polar transport ship, comprising the following steps: Step 1, based on the size and weight of the hoisted equipment or objects and the space layout requirements on the main deck (15) of the ship, preliminarily determine the form, space size and position of the structural platform, adopt an I-shaped truss structure, divide the height of the structural platform into three layers, namely the lower platform (4), the middle platform (9) and the upper platform (13), and set a lower inclined support (1) and a supporting bracket (2) to transfer the load on the structural platform to the hull reinforcement structure; Step 2, the pillars and diagonal supports under each platform are all in the form of an I-beam structure, the I-beam is composed of two panels and a web, and is arranged in a central symmetrical manner, and the lower platform (4) and the middle platform (9) are covered with grilles and railings; Step 3, based on the calculation results of the dynamic loads jointly generated by the structural platform and the equipment or objects during the navigation and operation of the ship, the sizes and angles of the truss-type structural platform, pillars and oblique supports are optimized. Based on the weight of the hoisted equipment or objects and their dynamic loads, the strength and bending moment of the structure at the hoisting eye plate (12) below the upper platform (13) are checked to ensure the rigidity and stability of the entire structural platform. The lower oblique support (1), the connecting bracket (6) and the neutral pillar (7) are aligned with the reinforcement structure (16) of the main deck (15) and the side outer plate (14); Step 4, the strength of the main deck (15) and the side outer plate (14) in the area where the truss structure platform is located is checked, and the size of the truss structure platform is optimized again according to the final check result.

[0013] The present invention discloses a truss structure platform and an assembly method for a polar transport ship. When the ship is operating or sailing, the strength and rigidity of the structure platform must meet the dynamic loads generated by the ship itself and equipment or objects, and these loads are effectively transferred to the hull structure to avoid fatigue strength damage to the hull structure. At the same time, the size and form of the structure platform are optimized by combining the characteristics of multi-layer platform assembly and truss structure to improve its rigidity and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a main view of a polar transport ship truss structure platform and assembly method of the present invention. Figure 1 .

[0015] Figure 2 This is a main view of a polar transport ship truss structure platform and assembly method of the present invention. Figure 2 .

[0016] Figure 3 It is a side view of a polar transport ship truss structure platform and an assembly method thereof according to the present invention.

[0017] Figure 4 A top view of a polar transport ship truss structure platform and assembly method of the present invention Figure 1 .

[0018] Figure 5 A top view of a polar transport ship truss structure platform and assembly method of the present invention Figure 2 .

[0019] Figure 6 A top view of a polar transport ship truss structure platform and assembly method of the present invention Figure 3 .

[0020] In the figure: 1. Lower oblique support; 2. Support bracket; 3. Protective coaming; 4. Lower platform; 5. Connecting pad; 6. Connecting bracket; 7. Neutral pillar; 8. Middle oblique support; 9. Middle platform; 10. Upper pillar; 11. Upper oblique support; 12. Lifting eye plate; 13. Upper platform; 14. Side outer plate; 15. Main deck; 16. Strengthening structure; 17. Square opening; 18. Round opening; 19. Grille; 20. Wire rope. DETAILED DESCRIPTION

[0021] like Figures 1 to 6 As shown, the polar transport ship truss structure platform comprises a lower inclined support 1, a supporting bracket 2, a protective coaming 3, a lower platform 4, a connecting pad 5, a connecting bracket 6, a neutral pillar 7, a middle inclined support 8, a middle platform 9, an upper pillar 10, an upper inclined support 11, a lifting eye plate 12 and an upper platform 13. The lower platform 4 is assembled with the lower inclined support 1, the supporting bracket 2, the protective coaming 3 and the connecting pad 5 to form a lower structure of the truss platform. The middle platform 9 is assembled with the connecting bracket 6, the neutral pillar 7 and the middle inclined support 8 to form a middle structure of the truss platform. The upper platform 13 is assembled with the upper pillar 10, the upper inclined support 11 and the lifting eye plate 12 to form an upper structure of the truss platform. The lower structure of the truss platform, the middle structure of the truss platform and the upper structure of the truss platform are assembled together. After the upper structure of the platform is assembled, it is aligned with the reinforcement structure 16 of the side outer plate 14 and the main deck 15 and fixedly connected to form a semi-cantilever truss structure platform extending out of the ship's side. A square opening 17 for the launch or lifting of equipment or objects is provided on the lower platform 4. The protective coaming 3 is installed around the square opening 17 on the lower platform 4. The square opening 17 is a trumpet-shaped one, which effectively prevents the equipment or objects from colliding with the platform during launch or lifting. The connecting pad 5 is installed between the lower platform 4 and the side outer plate 14. The connecting pad 5 is provided with a plug welding hole to increase the welding area of ​​the connecting pad 5. A circular opening 18 for conveying slings and wire ropes 20 is provided on the middle platform 9. The circular opening 18 and the square opening 17 of the lower platform 4 form a beautiful arrangement of round sky and square earth, which is more conducive to personnel operation and personal safety. The hoisting eye plate 12 below the upper platform 13, It is used to place or lift equipment or objects through a winch and a wire rope 20. The lower inclined support 1, the lower platform 4, the neutral pillar 7, the middle inclined support 8, the middle platform 9, the upper pillar 10, the upper inclined support 11 and the upper platform 13 are all truss structures composed of I-shaped steel beams. Grilles 19 are laid on the lower platform 4 and the middle platform 9 to ensure the personal safety of the operators.

[0022] The method for assembling a truss structure platform of a polar transport ship comprises the following steps: Step 1, preliminarily determining the form, spatial size and position of the structure platform according to the size and weight of the hoisted equipment or objects and the space arrangement requirements on the main deck 15 of the ship, adopting an I-shaped truss structure form, which is conducive to the mutual assembly and support of the platform structure and the alignment with the hull reinforcement structure, dividing the height of the structure platform into three layers, namely the lower platform 4, the middle platform 9 and the upper platform 13, which is conducive to ensuring the overall strength and rigidity of the structure platform when subjected to load, and being designed to extend out due to the limitation of the relevant arrangement on the main deck of the ship. The semi-cantilever truss structure platform on the side of the ship is provided with a lower oblique support 1 and a supporting bracket 2, which is used to transfer the load on the structural platform to the hull reinforcement structure to avoid hard points of fatigue stress; Step 2, the pillars and oblique supports under each platform are in the form of I-beam structure, which is composed of two panels and a web, and is arranged in a central symmetrical manner. It is not easy to twist when subjected to force, which is conducive to transferring loads and ensuring the overall stability of the structural platform. The lower platform 4 and the middle platform 9 are covered with grilles and railings to ensure the personal safety of operators; Step 3, according to the navigation and During operation, the dynamic load calculation results generated by the structural platform and equipment or objects are used to optimize the size and angle of the truss structural platform, pillars and oblique supports. According to the weight of the hoisted equipment or objects and their dynamic loads, the strength and bending moment of the structure at the lifting eye plate 12 below the upper platform 13 are checked to ensure the rigidity and stability of the entire structural platform. The alignment of the lower oblique support 1, the connecting bracket 6 and the neutral pillar 7 with the reinforcement structure 16 of the main deck 15 and the side outer plate 14 is conducive to transferring the load of the truss structural platform to the hull structure, avoiding the structural platform from causing damage to the main deck and the side outer plate structure. Fatigue strength failure; Step 4, strength check is performed on the main deck 15 and the side outer plate 14 structure in the area where the truss structure platform is located to ensure that the total structural strength of the area meets the relevant requirements of the specification, and the size of the truss structure platform is optimized again according to the final check result to achieve the truss structure platform with novel form, reasonable layout, beautiful appearance, good stability, high rigidity and strength, and meet the requirements of the use function, and form a whole with the hull structure, effectively transfer the dynamic load of the structure platform, participate in the local strength of the hull structure, and improve the stability and service life of the structure platform.

Claims

1. A polar transport ship truss structure platform, characterized in that: The invention comprises a lower inclined support (1), a supporting bracket (2), a protective enclosure (3), a lower platform (4), a connecting pad (5), a connecting bracket (6), a neutral pillar (7), a middle inclined support (8), a middle platform (9), an upper pillar (10), an upper inclined support (11), a lifting eye plate (12) and an upper platform (13). The lower platform (4) is assembled with the lower inclined support (1), the supporting bracket (2), the protective enclosure (3) and the connecting pad (5) to form a truss platform lower structure. The middle platform (9) is assembled with the connecting bracket (6), the neutral pillar (7) and the middle inclined support (8) to form a truss platform middle structure. The upper platform (13) is assembled with the upper pillar (10), the upper inclined support (11) and the lifting eye plate (12) to form a truss platform upper structure. The truss platform lower structure, the truss platform middle structure and the truss platform upper structure are assembled together.

2. The polar transport ship truss structure platform according to claim 1, characterized in that: After being assembled, the truss platform lower structure, the truss platform middle structure and the truss platform upper structure are aligned with the side outer plate (14) and the reinforcement structure (16) of the main deck (15) and fixedly connected to form a semi-cantilever truss structure platform extending out from the side of the ship.

3. The polar transport ship truss structure platform according to claim 1, characterized in that: The lower platform (4) is provided with a square opening (17) for placing or lifting equipment or objects.

4. The polar transport ship truss structure platform according to claim 1, characterized in that: The protective enclosure (3) is installed around a square opening (17) on the lower platform (4), and the square opening (17) is trumpet-shaped.

5. The polar transport ship truss structure platform according to claim 1, characterized in that: The connecting pad (5) is installed between the lower platform (4) and the side outer plate (14), and a plug welding hole for increasing the welding area of ​​the connecting pad (5) is opened on the connecting pad (5).

6. The polar transport ship truss structure platform according to claim 1, characterized in that: The middle platform (9) is provided with a circular opening (18) for conveying slings and steel wire ropes.

7. The polar transport ship truss structure platform according to claim 1, characterized in that: The lower inclined support (1), the lower platform (4), the neutral pillar (7), the middle inclined support (8), the middle platform (9), the upper pillar (10), the upper inclined support (11) and the upper platform (13) are all truss structures composed of I-shaped steel beams.

8. The polar transport ship truss structure platform according to claim 3, 6 or 7, characterized in that: The lower platform (4) and the middle platform (9) are provided with grids (19).

9. A method for assembling a polar transport ship truss structure platform according to claim 1, characterized in that: The following steps are involved: Step 1, based on the size and weight of the hoisted equipment or objects and the space layout requirements on the main deck (15) of the ship, preliminarily determine the form, space size and position of the structural platform, adopt an I-shaped truss structure, divide the height of the structural platform into three layers, namely the lower platform (4), the middle platform (9) and the upper platform (13), and set a lower inclined support (1) and a supporting bracket (2) to transfer the load on the structural platform to the hull reinforcement structure; Step 2, the pillars and diagonal supports under each platform are all in the form of an I-beam structure, the I-beam is composed of two panels and a web, and is arranged in a central symmetrical manner, and the lower platform (4) and the middle platform (9) are covered with grilles and railings; Step 3, based on the calculation results of the dynamic loads jointly generated by the structural platform and the equipment or objects during the navigation and operation of the ship, the sizes and angles of the truss-type structural platform, pillars and oblique supports are optimized. Based on the weight of the hoisted equipment or objects and their dynamic loads, the strength and bending moment of the structure at the hoisting eye plate (12) below the upper platform (13) are checked to ensure the rigidity and stability of the entire structural platform. The lower oblique support (1), the connecting bracket (6) and the neutral pillar (7) are aligned with the reinforcement structure (16) of the main deck (15) and the side outer plate (14); Step 4, the strength of the main deck (15) and the side outer plate (14) in the area where the truss structure platform is located is checked, and the size of the truss structure platform is optimized again according to the final check result.

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