Construction method for preventing deformation of full-width superstructure

Abstract

The invention relates to a construction method for preventing deformation of a full-width superstructure, which comprises the following steps: step 1, in a sectional assembly stage, after assembly and positioning are completed, arranging an auxiliary support between a lower opening of a longitudinal bulkhead without a solid rib plate and a lower opening of a peripheral wall of the superstructure; step 2, carrying out segmented assembly welding, and releasing the support of the auxiliary support after the assembly welding is completed; 3, after the stress of the superstructure is released, the construction precision of the superstructure is measured and corrected; 4, resetting and supporting the auxiliary support; and 5, the superstructure is hoisted, and the auxiliary supports are dismantled before hoisting and hook loosening. According to the method, the stress is released by dismounting the auxiliary support, so that the situation that the assembly stress cannot be released due to the existence of the auxiliary support is avoided, the influence of the existence of the auxiliary support on the construction precision measurement of the upper construction section is further avoided, the upper construction section is in a natural state, and the accuracy of precision measurement correction is improved.

Description

Technical Field

[0001] The invention relates to the field of shipbuilding, and in particular to a construction method for preventing deformation of a full-width superstructure. Background Art

[0002] Since some superstructures are divided into full-width sections, the existing full-width superstructure construction, such as the patent document with publication number CN118928690A, discloses a full-width superstructure section construction and overall assembly positioning method. It is mentioned that the plates used for the superstructure sections are usually thin plates. During the construction process, the workload of the overall assembly loading correction is large due to assembly accuracy, hoisting, etc., and the sections are also prone to deformation during the storage process.

[0003] Although full-width sections can improve construction efficiency, it is difficult to adjust the positioning dimensions. In addition, due to the requirements for cabin layout, solid ribs are often not arranged in the lateral position of the superstructure. In order to ensure the overall strength requirements, only longitudinal continuous bulkheads are set. The span of the longitudinal continuous bulkheads can reach about 10 meters. The lack of transverse solid ribs increases the difficulty of construction and hoisting. Summary of the invention

[0004] In order to solve the problem that the full-width superstructure is prone to deformation during the construction process, the present invention provides a construction method for preventing the full-width superstructure from being deformed, wherein support is provided by auxiliary supports, and after the auxiliary supports are removed and the stress is released, the lateral position of the full-width superstructure is supported and strengthened again by the auxiliary supports to avoid deformation, release welding and assembly stress, and reduce construction deviation.

[0005] The technical objectives of the present invention are achieved through the following technical solutions:

[0006] A construction method for preventing deformation of a full-width superstructure, the method comprising:

[0007] Step 1: During the segmented assembly stage of the full-width superstructure, after the assembly positioning is completed, an auxiliary support is provided between the lower opening of the longitudinal bulkhead and the lower opening of the peripheral wall of the superstructure where no solid ribs are provided, and the auxiliary support and the longitudinal bulkhead as well as the auxiliary support and the peripheral wall are detachably connected;

[0008] Step 2: Perform segmented assembly welding, and after the assembly welding is completed, release the support of the auxiliary support;

[0009] Step 3: After the stress release of the superstructure is completed, the construction accuracy of the superstructure is measured, and the areas that do not meet the construction accuracy requirements are corrected according to the measurement results;

[0010] Step 4: After the correction is completed, the longitudinal bulkhead and the peripheral wall of the superstructure where no solid ribs are provided in the transverse position are supported again by auxiliary supports;

[0011] Step 5: Hoist the superstructure and remove the auxiliary supports before loosening the hook.

[0012] Furthermore, the auxiliary support includes a supporting main beam and a supporting auxiliary beam, one end of the supporting main beam is detachably connected to the longitudinal bulkhead, one end of the supporting auxiliary beam is detachably connected to the outer wall, the other end of the supporting main beam and the other end of the supporting auxiliary beam are movably connected, and the supporting span of the auxiliary support is adjusted through the movable connection position.

[0013] Furthermore, an oblique bracing auxiliary beam is provided at the lower end of the supporting main beam, one end of the oblique bracing auxiliary beam is supported on the lower end of the supporting main beam, and the other end of the oblique bracing auxiliary beam is supported on the outer wall below the supporting auxiliary beam.

[0014] Further, the auxiliary supports are arranged at positions corresponding to the solid floors of the longitudinal bulkheads having solid floors.

[0015] Furthermore, a T-shaped bar is provided on the inner side of the peripheral wall corresponding to the solid ribs of the longitudinal bulkhead having the solid ribs, and one end of the diagonal bracing auxiliary beam and the supporting auxiliary beam supporting the peripheral wall is supported on the T-shaped bar on the inner side of the peripheral wall.

[0016] Furthermore, a first locking device is provided at one end of the auxiliary support close to the longitudinal bulkhead, the first locking device includes a first back plate, two first clamping plates arranged on one side of the first back plate, a first clamping space for clamping the solid ribs of the longitudinal bulkhead is formed between the two first clamping plates, a first slot for accommodating the longitudinal bulkhead is formed between the first clamping plate and the first back plate, and the auxiliary support is connected and fixed to the other side of the first back plate.

[0017] Furthermore, a second locking device is provided at one end of the auxiliary support close to the cabin wall, and the second locking device includes a second back plate, a second side plate arranged on one side of the second back plate, and a second clamping plate, and the auxiliary support is connected and fixed to the other side of the second back plate; the second side plate is arranged on one side of the second back plate perpendicular to the second back plate, and the second clamping plate is arranged on the other side of the second back plate, and the second clamping plate is L-shaped, and a second clamping space for clamping a panel of a T-profile is formed between the second clamping plate and the second back plate; the second clamping plate and the second back plate are detachably connected.

[0018] Furthermore, the first clamping plate is also provided with a first adjusting threaded member for adjusting the clamping tightness of the first clamping space, and the first adjusting threaded member and the first clamping plate are threadedly connected; the second clamping plate is also provided with a second adjusting threaded member for adjusting the clamping tightness of the second clamping space, and the second adjusting threaded member and the second clamping plate are threadedly connected.

[0019] Furthermore, the second clamping plate is provided with a connecting shaft corresponding to the second back plate, the second back plate is provided with a circular hole corresponding to the connecting shaft, one end of the connecting shaft passing through the circular hole is provided with an external thread, and one end of the external thread of the connecting shaft is provided with a locking nut.

[0020] Furthermore, a socket arrangement is provided between the supporting main beam and the supporting auxiliary beam, and a locking bolt for locking the socket position between the supporting main beam and the supporting auxiliary beam is also provided between the supporting main beam and the supporting auxiliary beam.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention increases the strength between the longitudinal bulkhead and the outer wall without solid ribs by setting auxiliary supports. On the one hand, it plays a role of positioning support before assembly and welding. On the other hand, it is convenient to disassemble and release stress after assembly and welding. After correction, the auxiliary supports are used for strengthening support to avoid deformation during storage and subsequent lifting.

[0023] 2. The present invention releases stress by removing auxiliary supports, thereby avoiding the inability to release assembly stress due to the existence of auxiliary supports, and further avoiding the influence of the existence of auxiliary supports on the construction accuracy measurement of the upper construction section. The auxiliary supports are released to place the upper construction section in a natural state, thereby improving the accuracy of precision measurement and providing an accurate measurement basis for correction. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a reverse top view of the segmented assembly of the full-width superstructure in the present invention.

[0025] Figure 2 It is a schematic side view of the auxiliary support between the peripheral wall and the longitudinal bulkhead in the present invention.

[0026] Figure 3 It is a top view schematic diagram of the auxiliary support between the peripheral wall and the longitudinal bulkhead in the present invention.

[0027] Figure 4 It is a structural schematic diagram of an auxiliary support in the present invention.

[0028] Figure 5 The present invention Figure 4 Schematic diagram of the use of auxiliary support.

[0029] Figure 6 It is a schematic diagram of the use of the first locking device installed at the end of the supporting auxiliary beam in the present invention.

[0030] Figure 7 The present invention Figure 6 Schematic diagram of setting diagonal bracing auxiliary beam at the lower end of the supporting main beam.

[0031] Figure 8It is a schematic structural diagram of the second locking device in the present invention.

[0032] Fig. 9 It is a structural schematic diagram of another auxiliary support in the present invention.

[0033] In the figure:

[0034] 1. Upper deck; 2. Outer wall; 3. Longitudinal bulkhead; 4. Solid rib; 5. Auxiliary support; 6. T-shaped bar; 7. First locking device; 8. Third locking device; 9. Diagonal bracing auxiliary beam; 10. Second locking device;

[0035] 51. Support the main beam; 52. Support the auxiliary beam; 53. Lock the bolts;

[0036] 71. first back plate; 72. first clamping plate; 73. first slot; 74. first adjusting screw member;

[0037] 81. third back plate; 82. third clamping plate; 83. third clamping slot; 84. third adjusting screw member;

[0038] 101. Second back plate; 102. Second side plate; 103. Second clamping plate; 104. Connecting shaft; 105. Locking nut; 106. Second adjusting screw member. DETAILED DESCRIPTION

[0039] The technical solution of the present invention is further described below in conjunction with specific embodiments:

[0040] A construction method for preventing deformation of a full-width superstructure, the method comprising:

[0041] Step 1: During the stage of block assembly of the full-width superstructure, Figure 1 As shown, the full-width superstructure includes an upper deck 1, an outer wall 2 arranged below the upper deck 1, and a longitudinal bulkhead 3 arranged at a transverse position inside the outer wall 2. A solid floor 4 is connected between the two middle longitudinal bulkheads 3, and no solid floor is arranged between the longitudinal bulkhead 3 and the outer wall 2. The inner side of the outer wall 2, the frame surface of the solid floor 4, and the frame surface of the longitudinal bulkhead 3 are respectively installed with longitudinally arranged bulb flat steel profiles 5. The full-width superstructure adopts the reverse construction method during construction, and the longitudinal bulkhead 3, the outer wall 2 and the solid floor 4 are positioned and assembled on the upper deck 1, as shown in FIG. Figure 2 shown.

[0042] After the assembly and positioning is completed, an auxiliary support 5 is arranged between the lower opening of the longitudinal bulkhead and the lower opening of the peripheral wall of the superstructure where no solid ribs are arranged, and the auxiliary support 5 and the longitudinal bulkhead 3 as well as the auxiliary support 5 and the peripheral wall 2 are detachably connected.

[0043] Preferably, the auxiliary support 5 is arranged at a position corresponding to the solid floor 4 of the longitudinal bulkhead with solid floor, such as Figure 2 and Figure 3 shown.

[0044] Step 2: Perform segmented assembly welding. After the assembly welding is completed, release the auxiliary support between the longitudinal bulkhead and the outer wall, and release the stress without being restricted by the auxiliary support. The stress release can be performed by pyrotechnics, knocking, etc.

[0045] Step 3: After the stress release of the superstructure is completed, the construction accuracy of the superstructure is measured, and the areas that do not meet the construction accuracy requirements are corrected according to the measurement results; the measurement includes but is not limited to the measurement of the assembly position, the horizontality and verticality of the assembly.

[0046] Step 4: After the correction is completed, the longitudinal bulkhead and the peripheral wall of the superstructure where no solid ribs are provided in the transverse position are supported again by auxiliary supports 5;

[0047] Step 5: Hoist the superstructure and remove the auxiliary supports before releasing the hook. Hoisting includes different stages. For example, after construction is completed, it needs to be hoisted and placed in a designated area. It also includes the hoisting of the total assembly. The hoisting of the auxiliary support total assembly is in the final stage. For example, after the segment positioning is completed, before the hook is released, leave space to remove the auxiliary supports.

[0048] In one embodiment, since no solid ribs are provided between the longitudinal bulkhead and the peripheral wall, a T-profile 6 may be provided at a position on the peripheral wall corresponding to the position where the solid ribs are provided. The T-profile 6 is provided longitudinally. The longitudinal direction referred to in this embodiment should be clearly defined as a direction perpendicular to the upper deck.

[0049] Preferably, a plurality of bulb flat steel profiles are installed on the inner side of the outer peripheral wall, the longitudinal bulkhead and the solid ribs respectively. The bulb flat steel profiles are arranged longitudinally, and the spacing between the bulb flat steels is 700-900mm.

[0050] In one embodiment, the structure of the auxiliary support 5 is as follows Figure 4 As shown, the auxiliary support 5 includes a supporting main beam 51 and a supporting auxiliary beam 52. One end of the supporting main beam 51 is detachably connected to the longitudinal bulkhead through a first locking device 7, and one end of the supporting auxiliary beam 52 is detachably connected to the peripheral wall through a third locking device 8. The other end of the supporting main beam 51 forms a hollow sleeve structure, and the other end of the supporting auxiliary beam 52 is movably inserted into the hollow sleeve structure of the supporting main beam 51. Different support span adjustments are achieved by adjusting the length of the supporting auxiliary beam 52 inserted into the hollow sleeve structure. A threaded hole is provided on the side wall of the hollow sleeve structure, and a locking bolt 53 is installed in the threaded hole. The locking bolt 53 is pressed against the outer wall of the supporting auxiliary beam 52 to achieve the locking of the relative position between the supporting main beam 51 and the supporting auxiliary beam 52.

[0051] More specifically, the first locking device 7 includes a first back plate 71, two first clamping plates 72 arranged on one side of the first back plate 71, a first clamping space for clamping the solid rib 4 of the longitudinal bulkhead is formed between the two first clamping plates 72, a first clamping groove 73 for accommodating the longitudinal bulkhead is formed between the first clamping plate 72 and the first back plate 71, and the opposite end of the hollow sleeve structure of the supporting main beam 51 is connected and fixed to the other side of the first back plate 71.

[0052] The third locking device 8 includes a third back plate 81 and a third clamping plate 82 arranged on one side of the third back plate. A third slot 83 for clamping the outer wall is formed between the third clamping plate 82 and the third back plate 81. The supporting auxiliary beam 82 is connected and fixed to the other side of the third back plate 81.

[0053] When using Figure 5 As shown, the lower end of the longitudinal bulkhead 3 is inserted into the first slot 73, the lower end of the solid rib 4 is inserted into the first clamping space, and the first adjusting thread 74 is threadedly installed on the first clamping plate. Screwing the first adjusting thread 74 makes the first adjusting thread press against the solid rib 4 from both sides; the lower end of the outer wall 2 is inserted into the third slot 83, and the third adjusting thread 84 is threadedly installed on the third clamping plate 82. Screwing the third adjusting thread 84 makes the third adjusting thread press against the outer wall 2; finally, screwing the locking bolt 53 locks the relative position between the supporting main beam 51 and the supporting auxiliary beam 52. Finally, adjusting the locking bolt 53 can avoid additional traction and support on the outer wall 2 and the longitudinal bulkhead 3 during the installation of the auxiliary support 5.

[0054] Preferably, when a T-shaped bar 6 is provided, the supporting auxiliary beam 52 can also be connected to the T-shaped bar 6 by means of the first locking device 7. Figure 6 As shown, the lower end of the panel of the T-profile is inserted into the first slot 73 of the first locking device 7 at the end of the supporting auxiliary beam 52, and the lower end of the web of the T-profile is inserted into the first clamping space of the first locking device 7 at the end of the supporting auxiliary beam 52, and the first adjusting screw 74 is screwed so that the first adjusting screw presses against the web of the T-profile 6 from both sides.

[0055] As a preference, Figure 7 As shown, a diagonal bracing auxiliary beam 9 is also provided at the lower end of the supporting main beam 51, one end of the diagonal bracing auxiliary beam 9 is supported on the lower end of the supporting main beam 51, and the other end of the diagonal bracing auxiliary beam 9 is supported on the outer wall below the supporting auxiliary beam 52. When the outer wall is not provided with a T-profile, the end of the diagonal bracing auxiliary beam can be welded to the outer wall 2. In this embodiment, taking the case where a T-profile is provided as an example, the end of the diagonal bracing auxiliary beam 9 is connected to the T-profile 6 by clamping.

[0056] When releasing the support of the auxiliary support, just loosen the locking bolt or remove the clamping of the third locking device. When there is a diagonal bracing auxiliary beam 9, it is also necessary to release the connection between the diagonal bracing auxiliary beam 9 and the outer wall or T-shaped material.

[0057] Specifically, a double-ear plate mounting seat is provided on the side wall of the supporting main beam 51, and connecting ear plates are respectively provided at both ends of the diagonal bracing auxiliary beam 9. The connecting ear plate at one end of the diagonal bracing auxiliary beam 9 is installed on the double-ear plate mounting seat on the side wall of the supporting main beam 51 through a pin shaft; the connecting ear plate at the other end of the diagonal bracing auxiliary beam 9 is hingedly connected with a second locking device 10, and the connection between the diagonal bracing auxiliary beam 9 and the T-profile is realized through the second locking device 10.

[0058] Specifically, the second locking device 10 is as follows Figure 8 As shown, the second locking device 10 includes a second back plate 101, a second side plate 102 arranged on one side of the second back plate 101, and a second clamping plate 103. The end of the diagonal auxiliary beam 9 is hingedly connected to the other side of the second back plate 101; the second side plate 102 is perpendicular to the second back plate 101 and is arranged on one side of the second back plate 101. The second clamping plate 103 is arranged on the other side of the second back plate. The second clamping plate 103 is L-shaped, and a second clamping space for clamping a panel of a T-shaped material is formed between the second clamping plate 103 and the second back plate 101. The second clamping space opens toward the second side plate 102 in the working state; the second clamping plate 103 is provided with a connecting shaft 104 corresponding to the second back plate 101, and the second back plate 101 is provided with a circular hole corresponding to the connecting shaft, and the connecting shaft 104 is provided with an external thread at one end passing through the circular hole, and a locking nut 105 is provided at one end of the connecting shaft 104 with the external thread; the second clamping plate 103 is also provided with a second adjusting screw member 106 for adjusting the clamping tightness of the second clamping space, and the second adjusting screw member 106 and the second clamping plate 103 are threadedly connected.

[0059] When in use, the second clamping space clamps one side of the panel of the T-profile, and the second side plate restricts the T-profile from the other side of the panel of the T-profile. It should be noted that the second side plate and the panel of the T-profile do not need to contact each other, and the second side plate mainly prevents the panel of the T-profile from completely escaping from the second clamping space laterally. The second adjusting screw 106 is screwed so that the second adjusting screw 106 abuts against the back of the panel of the T-profile, and the second back plate abuts against the front of the panel of the T-profile.

[0060] When installing the second locking device, rotate the second clamping plate 103 relative to the connecting shaft 104 so that the second clamping plate 103 does not affect the second back plate 101 against the front of the T-profile panel. After the second back plate 101 is against the front of the T-profile panel, rotate the second clamping plate 103 along the connecting shaft 104 so that the second clamping plate is rotated to the back of the T-profile panel. Screw the locking nut 105 to fix the position of the second clamping plate 103, and then screw the second adjusting screw 106 against the back of the T-profile panel.

[0061] In another embodiment, if Fig. 9 As shown, a first locking device 7 is provided at one end of the supporting main beam 51, and a second locking device 10 is provided at one end of the supporting auxiliary beam 52. The second locking device 10 at the end of the supporting auxiliary beam 52 is substantially the same in structure as the second locking device 10 at the end of the diagonal supporting auxiliary beam 9, except that the end of the supporting auxiliary beam 52 is vertically fixedly connected to the second back plate 101 of the second locking device. Fig. 9 As shown, the end of the diagonal support auxiliary beam 9 is hingedly connected to the second back plate 101 of the second locking device 10. When the auxiliary support is released, the locking bolt 53 can be loosened or the clamping of the second locking device on the T-shaped bar can be removed without removing the entire auxiliary support.

[0062] This embodiment is only a further explanation of the present invention, not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it will be protected by the patent law.

Claims

1. A construction method for preventing deformation of a full-width superstructure, characterized in that: The method includes: Step 1: During the segmented assembly stage of the full-width superstructure, after the assembly positioning is completed, an auxiliary support is provided between the lower opening of the longitudinal bulkhead and the lower opening of the peripheral wall of the superstructure where no solid ribs are provided, and the auxiliary support and the longitudinal bulkhead as well as the auxiliary support and the peripheral wall are detachably connected; Step 2: Perform segmented assembly welding, and after the assembly welding is completed, release the support of the auxiliary support; Step 3: After the stress release of the superstructure is completed, the construction accuracy of the superstructure is measured, and the areas that do not meet the construction accuracy requirements are corrected according to the measurement results; Step 4: After the correction is completed, the longitudinal bulkhead and the peripheral wall of the superstructure where no solid ribs are provided in the transverse position are supported again by auxiliary supports; Step 5: Hoist the superstructure and remove the auxiliary supports before loosening the hook.

2. A construction method for preventing deformation of a full-width superstructure according to claim 1, characterized in that: The auxiliary support includes a supporting main beam and a supporting auxiliary beam, one end of the supporting main beam is detachably connected to the longitudinal bulkhead, one end of the supporting auxiliary beam is detachably connected to the outer wall, the other end of the supporting main beam and the other end of the supporting auxiliary beam are movably connected, and the supporting span of the auxiliary support is adjusted through the movable connection position.

3. A construction method for preventing deformation of a full-width superstructure according to claim 2, characterized in that: An oblique bracing auxiliary beam is also provided at the lower end of the supporting main beam, one end of the oblique bracing auxiliary beam is supported on the lower end of the supporting main beam, and the other end of the oblique bracing auxiliary beam is supported on the outer wall below the supporting auxiliary beam.

4. A construction method for preventing deformation of a full-width superstructure according to claim 3, characterized in that: The auxiliary supports are provided at positions corresponding to the solid floors of the longitudinal bulkheads having solid floors.

5. A construction method for preventing deformation of a full-width superstructure according to claim 4, characterized in that: A T-shaped bar is provided on the inner side of the outer wall corresponding to the solid ribs of the longitudinal bulkhead with solid ribs, and one end of the diagonal bracing auxiliary beam and the supporting auxiliary beam supporting the outer wall is supported on the T-shaped bar on the inner side of the outer wall.

6. A construction method for preventing deformation of a full-width superstructure according to claim 5, characterized in that: A first locking device is provided at one end of the auxiliary support close to the longitudinal bulkhead, the first locking device includes a first back plate, and two first clamping plates arranged on one side of the first back plate, a first clamping space for clamping the solid ribs of the longitudinal bulkhead is formed between the two first clamping plates, a first slot for accommodating the longitudinal bulkhead is formed between the first clamping plate and the first back plate, and the auxiliary support is connected and fixed to the other side of the first back plate.

7. A construction method for preventing deformation of a full-width superstructure according to claim 6, characterized in that: A second locking device is provided at one end of the auxiliary support close to the cabin wall, and the second locking device includes a second back panel, a second side panel arranged on one side of the second back panel, and a second clamping plate. The auxiliary support is connected and fixed to the other side of the second back panel; the second side panel is arranged on one side of the second back panel perpendicular to the second back panel, and the second clamping plate is arranged on the other side of the second back panel. The second clamping plate is L-shaped, and a second clamping space for clamping a panel of a T-profile is formed between the second clamping plate and the second back panel; the second clamping plate and the second back panel are detachably connected.

8. A construction method for preventing deformation of a full-width superstructure according to claim 7, characterized in that: The first clamping plate is also provided with a first adjusting threaded member for adjusting the clamping tightness of the first clamping space, and the first adjusting threaded member and the first clamping plate are threadedly connected; the second clamping plate is also provided with a second adjusting threaded member for adjusting the clamping tightness of the second clamping space, and the second adjusting threaded member and the second clamping plate are threadedly connected.

9. A construction method for preventing deformation of a full-width superstructure according to claim 8, characterized in that: The second clamping plate is provided with a connecting shaft corresponding to the second back plate, the second back plate is provided with a circular hole corresponding to the connecting shaft, one end of the connecting shaft passing through the circular hole is provided with an external thread, and one end of the external thread of the connecting shaft is provided with a locking nut.

10. A construction method for preventing deformation of a full-width superstructure according to claim 2, characterized in that: A socket arrangement is provided between the supporting main beam and the supporting auxiliary beam, and a locking bolt for locking the socket position between the supporting main beam and the supporting auxiliary beam is also provided between the supporting main beam and the supporting auxiliary beam.

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