Construction method for preventing deformation of superstructure

Abstract

The present application relates to a kind of full-width type superstructure prevents deformation construction method, comprising: step 1, in the stage of sectional assembly, after assembly positioning is completed, set up auxiliary support between the lower opening of longitudinal bulkhead and the lower opening of peripheral wall of which superstructure is not provided with solid rib plate;Step 2, carry out the assembly welding of section, after assembly welding is completed, remove the support of auxiliary support;Step 3, after the stress release of superstructure is completed, the construction precision measurement and correction of superstructure are carried out;Step 4, auxiliary support resets support;Step 5, the superstructure is hoisted, and auxiliary support is removed before hoisting loose hook.The present application releases stress by removing auxiliary support, avoids that assembly stress cannot be released due to the existence of auxiliary support, and further avoids that the construction precision measurement of upper segment is influenced due to the existence of auxiliary support, so that upper segment is in natural state, and the accuracy of precision measurement correction is improved.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding, and more specifically to a construction method for preventing deformation of a full-width superstructure. Background Technology

[0002] Some superstructures are divided into full-width sections. For example, the patent document with publication number CN118928690A discloses a method for constructing full-width superstructure sections and positioning the overall assembly. It mentions that the plates used for the superstructure sections are usually thin plates. During the construction process, due to assembly accuracy and hoisting, the workload of overall assembly and adjustment is large, and the sections are also prone to deformation during placement.

[0003] Although full-width segmentation can improve construction efficiency, it is difficult to adjust the positioning dimensions. Furthermore, in the lateral position of the superstructure, due to the requirements of the cabin layout, solid ribs are often not installed. To ensure the overall strength requirements, only longitudinal continuous bulkheads are set up. The span of 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] To address the issue of deformation during the construction of full-width superstructures, this invention provides a construction method for preventing deformation of full-width superstructures. This method involves using auxiliary supports for reinforcement. After the auxiliary supports are removed and the stress is released, they are reinforcing the lateral position of the full-width superstructure with additional auxiliary supports to prevent deformation, release welding and assembly stress, and reduce construction deviations.

[0005] The technical objective of this invention is achieved through the following technical solution:

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

[0007] Step 1: In the segmented assembly stage of the full-width superstructure, after the assembly and positioning are completed, auxiliary supports are set between the lower opening of the longitudinal bulkhead and the lower opening of the outer wall of the superstructure where no solid ribs are set. The auxiliary supports are detachably connected to the longitudinal bulkhead and to the outer wall.

[0008] Step 2: Perform segmented assembly and welding. After the assembly and welding are completed, remove the auxiliary supports.

[0009] Step 3: After the stress of the superstructure is released, 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, reinforce the longitudinal bulkheads and outer walls of the superstructure that do not have solid ribs in the lateral position with auxiliary supports.

[0011] Step 5: Hoist the upper structure and remove the auxiliary supports before releasing the hook.

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

[0013] Furthermore, a diagonal bracing auxiliary beam is also provided at the lower end of the main supporting beam. One end of the diagonal bracing auxiliary beam is supported at the lower end of the main supporting beam, and the other end of the diagonal bracing auxiliary beam is supported on the outer wall below the supporting auxiliary beam.

[0014] Furthermore, the auxiliary supports are positioned corresponding to the solid ribs of the longitudinal bulkhead with solid ribs.

[0015] Furthermore, T-shaped profiles are provided on the solid ribs of the longitudinal bulkhead corresponding to the solid ribs on the inner side of the outer wall, and the ends of the diagonal bracing beams and supporting beams supporting the outer wall are supported on the T-shaped profiles on the inner side of the outer wall.

[0016] Furthermore, a first locking device is provided at one end of the auxiliary support near the longitudinal bulkhead. The first locking device includes a first back plate and two first clamping plates disposed on one side of the first back plate. A first clamping space is formed between the two first clamping plates for clamping the solid rib plate of the longitudinal bulkhead. A first slot is formed between the first clamping plate and the first back plate for accommodating the longitudinal bulkhead. 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 near the bulkhead. The second locking device includes a second back plate, a second side plate disposed on one side of the second back plate, and a second clamping plate. The auxiliary support is connected and fixed to the other side of the second back plate. The second side plate is disposed perpendicular to the second back plate on one side of the second back plate, and the second clamping plate is disposed on the other side of the second back plate. The second clamping plate is L-shaped, and a second clamping space is formed between the second clamping plate and the second back plate for clamping the panel of the T-shaped profile. 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 component for adjusting the clamping tightness of the first clamping space, and the first adjusting threaded component and the first clamping plate are connected by a thread; the second clamping plate is also provided with a second adjusting threaded component for adjusting the clamping tightness of the second clamping space, and the second adjusting threaded component and the second clamping plate are connected by a thread.

[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 round hole corresponding to the connecting shaft, one end of the connecting shaft passing through the round hole is provided with an external thread, and one end of the connecting shaft with the external thread is provided with a locking nut.

[0020] Furthermore, a socket is provided between the main support beam and the auxiliary support beam, and a locking bolt is also provided between the main support beam and the auxiliary support beam to lock the socket position between the main support beam and the auxiliary support beam.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[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 positioning support role before assembly and welding. On the other hand, it facilitates disassembly and stress release after assembly and welding. After correction, it can be reinforced with auxiliary supports to avoid deformation during placement and subsequent hoisting.

[0023] 2. This invention releases stress by removing auxiliary supports, avoiding the inability to release assembly stress due to the presence of auxiliary supports, and thus avoiding the impact of the presence of auxiliary supports on the construction accuracy measurement of the superstructure segment. Removing the support of the auxiliary supports allows the superstructure segment to be in a natural state, improving the accuracy of the accuracy measurement and providing an accurate measurement basis for correction. Attached Figure Description

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

[0025] Figure 2 This is a schematic diagram of the auxiliary support between the outer wall and the longitudinal bulkhead in this invention.

[0026] Figure 3 This is a top view schematic diagram of the auxiliary support between the outer wall and the longitudinal bulkhead in this invention.

[0027] Figure 4 This is a schematic diagram of an auxiliary support structure in this invention.

[0028] Figure 5 This is the present invention. Figure 4 A schematic diagram illustrating the use of auxiliary supports.

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

[0030] Figure 7 This is the present invention. Figure 6 A schematic diagram showing the installation of diagonal bracing auxiliary beams at the lower end of the main supporting beam.

[0031] Figure 8This is a schematic diagram of the second locking device in this invention.

[0032] Figure 9 This is a schematic diagram of another auxiliary support structure in this invention.

[0033] In the picture:

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

[0035] 51. Support beam; 52. Support auxiliary beam; 53. Locking bolts;

[0036] 71. First back plate; 72. First clamping plate; 73. First slot; 74. First adjusting threaded component;

[0037] 81. Third back plate; 82. Third clamping plate; 83. Third slot; 84. Third adjusting threaded component;

[0038] 101. Second back plate; 102. Second side plate; 103. Second clamping plate; 104. Connecting shaft; 105. Locking nut; 106. Second adjusting threaded component. Detailed Implementation

[0039] The technical solution of the present invention will be further described below with reference to specific embodiments:

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

[0041] Step 1: In the segmented assembly stage of the full-width superstructure, such as... Figure 1 As shown, the full-width superstructure includes an upper deck 1, an outer bulkhead 2 located below the upper deck 1, and longitudinal bulkheads 3 located transversely within the outer bulkhead 2. A solid rib plate 4 connects the two intermediate longitudinal bulkheads 3. No solid rib plate is provided between the longitudinal bulkheads 3 and the outer bulkhead 2. Longitudinal spherical flat steel profiles 5 are installed on the inner side of the outer bulkhead 2, the frame surface of the solid rib plate 4, and the frame surface of the longitudinal bulkheads 3. The full-width superstructure is constructed using a reverse construction method, with the longitudinal bulkheads 3, outer bulkhead 2, and solid rib plate 4 positioned and assembled on the upper deck 1, as shown... Figure 2 As shown.

[0042] After the assembly and positioning are completed, an auxiliary support 5 is installed between the lower opening of the longitudinal bulkhead (where no solid ribs are installed) and the lower opening of the outer wall of the superstructure. The auxiliary support 5 is detachably connected to the longitudinal bulkhead 3 and to the outer wall 2.

[0043] Preferably, the auxiliary support 5 is positioned corresponding to the solid rib 4 of the longitudinal bulkhead with solid ribs, such as... Figure 2 and Figure 3 As shown.

[0044] Step 2: Perform segmented assembly and welding. After the assembly and welding are completed, remove the auxiliary supports between the longitudinal bulkhead and the outer bulkhead. In a state where the auxiliary supports are no longer restrictive, stress release can be carried out through methods such as pyrotechnics or hammering.

[0045] Step 3: After the stress of the superstructure is released, 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 levelness and verticality of the assembly.

[0046] Step 4: After the correction is completed, the longitudinal bulkheads and outer walls of the superstructure that do not have solid ribs in the lateral position are re-supported by auxiliary supports 5;

[0047] Step 5: Hoist the superstructure. Remove the auxiliary supports before releasing the hook. The hoisting includes different stages, such as hoisting the structure to a designated area after construction, and overall hoisting. When the overall hoisting of the auxiliary supports is nearing completion, such as after the segmented positioning is completed, leave space to remove the auxiliary supports before releasing the hook.

[0048] In one embodiment, since no solid ribs are provided between the longitudinal bulkhead and the outer bulkhead, T-shaped profiles 6 can be provided at the positions on the outer bulkhead corresponding to the positions where solid ribs are provided. The T-shaped profiles 6 are longitudinally arranged, and the longitudinal direction referred to in this embodiment should be clearly defined as the direction perpendicular to the upper deck.

[0049] As a preferred option, several bulb flat steel profiles are installed on the inner side of the outer bulkhead, the longitudinal bulkhead, and the solid rib plate, respectively. The bulb flat steel profiles are arranged longitudinally, and the spacing between the bulb flat steel profiles 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 main support beam 51 and a secondary support beam 52. One end of the main support beam 51 is detachably connected to the longitudinal bulkhead via a first locking device 7, and one end of the secondary support beam 52 is detachably connected to the outer wall via a third locking device 8. The other end of the main support beam 51 forms a hollow sleeve structure, and the other end of the secondary support beam 52 is movably inserted into the hollow sleeve structure of the main support beam 51. Different support spans can be adjusted by adjusting the length of the secondary support beam 52 inserted into the hollow sleeve structure. Threaded holes are provided on the side wall of the hollow sleeve structure, and locking bolts 53 are installed in the threaded holes. The locking bolts 53 abut against the outer wall of the secondary support beam 52 to lock the relative position between the main support beam 51 and the secondary support beam 52.

[0051] More specifically, the first locking device 7 includes a first back plate 71 and two first clamping plates 72 disposed on one side of the first back plate 71. A first clamping space is formed between the two first clamping plates 72 for clamping the solid rib plate 4 of the longitudinal bulkhead. A first slot 73 is formed between the first clamping plate 72 and the first back plate 71 for accommodating the longitudinal bulkhead. The opposite ends of the supporting main beam 51, which is provided with a hollow sleeve structure, are 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 disposed 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 opening of the longitudinal bulkhead 3 is inserted into the first slot 73, and the lower opening of the solid rib plate 4 is inserted into the first clamping space. A first adjusting threaded part 74 is threadedly installed on the first clamping plate. Tightening the first adjusting threaded part 74 causes it to abut against the solid rib plate 4 from both sides. The lower opening of the outer wall 2 is inserted into the third slot 83. A third adjusting threaded part 84 is threadedly installed on the third clamping plate 82. Tightening the third adjusting threaded part 84 causes it to abut against the outer wall 2. Finally, tightening 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 prevent the installation of the auxiliary support 5 from generating additional traction and support for the outer wall 2 and the longitudinal bulkhead 3.

[0054] Preferably, when a T-shaped profile 6 is provided, the supporting auxiliary beam 52 can also be connected to the T-shaped profile 6 using the first locking device 7, such as... Figure 6 As shown, the lower opening 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 opening 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. The first adjusting thread 74 is screwed on so that the first adjusting thread abuts against the web of the T-profile 6 from both sides.

[0055] As a preferred option, such as Figure 7 As shown, a diagonal bracing auxiliary beam 9 is also provided at the lower end of the main supporting beam 51. One end of the diagonal bracing auxiliary beam 9 is supported at the lower end of the main supporting 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-shaped 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-shaped profile is provided as an example, the end of the diagonal bracing auxiliary beam 9 is connected to the T-shaped profile 6 by clamping.

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

[0057] Specifically, the side wall of the supporting main beam 51 is provided with a double ear plate mounting seat, and the two ends of the diagonal bracing auxiliary beam 9 are respectively provided with connecting ear plates. The connecting ear plate at one end of the diagonal bracing auxiliary beam 9 is mounted on the double ear plate mounting seat on the side wall of the supporting main beam 51 by means of a pin. The connecting ear plate at the other end of the diagonal bracing auxiliary beam 9 is hinged to a second locking device 10, and the connection between the diagonal bracing auxiliary beam 9 and the T-profile is realized by means of 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 disposed on one side of the second back plate 101, and a second clamping plate 103. The end of the diagonal bracing beam 9 is hinged to the other side of the second back plate 101. The second side plate 102 is disposed perpendicular to the second back plate 101 on one side of the second back plate 101, and the second clamping plate 103 is disposed on the other side of the second back plate. The second clamping plate 103 is L-shaped, and a second clamping space is formed between the second clamping plate 103 and the second back plate 101 for clamping the panel of the T-shaped profile. In the working state, the second clamping space opens towards the second side plate 102; the second clamping plate 103 is provided with a connecting shaft 104 corresponding to the second back plate 101, the second back plate 101 is provided with a round hole corresponding to the connecting shaft, one end of the connecting shaft 104 passing through the round hole is provided with an external thread, and the end of the connecting shaft 104 with the external thread is provided with a locking nut 105; the second clamping plate 103 is also provided with a second adjusting threaded component 106 for adjusting the clamping tightness of the second clamping space, and the second adjusting threaded component 106 and the second clamping plate 103 are connected by a threaded engagement.

[0059] In use, the second clamping space clamps one side of the T-profile panel, and the second side plate restricts the T-profile from the other side of the panel. It should be noted that the second side plate and the T-profile panel do not need to be in contact; the second side plate primarily prevents the T-profile panel from completely detaching laterally from the second clamping space. Tightening the second adjusting thread 106 causes it to abut against the back of the T-profile panel, and the second back plate abuts against the front of the supporting T-profile panel.

[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 front of the second back plate 101 against the panel of the T-profile. After the second back plate 101 is against the front of the panel of the T-profile, rotate the second clamping plate 103 along the connecting shaft 104 so that the second clamping plate rotates to the back of the panel of the T-profile. Tighten the locking nut 105 to fix the position of the second clamping plate 103. Then tighten the second adjusting thread 106 to press against the back of the panel of the T-profile.

[0061] In another embodiment, such as Figure 9 As shown, a first locking device 7 is provided at one end of the main supporting beam 51, and a second locking device 10 is provided at one end of the auxiliary supporting beam 52. The second locking device 10 at the end of the auxiliary supporting beam 52 is structurally similar to the second locking device 10 at the end of the diagonal bracing auxiliary beam 9, except that the second back plate 101 of the second locking device is vertically and fixedly connected to the end of the auxiliary supporting beam 52. Figure 9 As shown, the second back plate 101 of the second locking device 10 is hinged to the end of the diagonal brace 9. When releasing the auxiliary support, simply loosen the locking bolt 53 or remove the clamping device on the T-shaped profile; there is no need to remove the entire auxiliary support.

[0062] This embodiment is merely a further explanation of the present invention and is not intended to limit the present invention. Those skilled in the art can make non-inventive modifications to this embodiment as needed after reading this specification, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A construction method for preventing deformation of a superstructure of a full width type, characterized by, The method comprises: Step 1, during the segmented assembly stage of the full-width superstructure, after the positioning is completed, auxiliary supports are arranged between the lower opening of the longitudinal bulkhead and the lower opening of the peripheral wall of the superstructure which are not provided with solid ribbed plates, and the auxiliary supports and the longitudinal bulkhead and the auxiliary supports and the peripheral wall are detachably connected; Step 2, the segmented assembly welding is carried out, and after the segmented assembly welding is completed, the support of the auxiliary supports is released; Step 3, after the stress release of the superstructure is completed, the construction precision of the superstructure is measured, and the areas that do not meet the construction precision requirements are corrected according to the measurement results; Step 4, after the correction is completed, the longitudinal bulkhead and the peripheral wall between which the solid ribbed plates are not arranged are supported again by the auxiliary supports; Step 5, the superstructure is hoisted, and the auxiliary supports are removed before the hoisting is loosened.

2. The construction method for preventing deformation of a full-width superstructure according to claim 1, characterized by, The auxiliary support comprises a support main beam and a support auxiliary beam, one end of the support main beam is detachably connected with the longitudinal bulkhead, one end of the support auxiliary beam is detachably connected with the peripheral wall, and the other end of the support main beam and the other end of the support auxiliary beam are movably connected and adjust the support span of the auxiliary support through the movable connection position.

3. The construction method for preventing deformation of a full-width superstructure according to claim 2, characterized by, The lower end of the support main beam is further provided with a diagonal support auxiliary beam, one end of the diagonal support auxiliary beam is supported on the lower end of the support main beam, and the other end of the diagonal support auxiliary beam is supported on the peripheral wall at a position below the support auxiliary beam.

4. The construction method for preventing deformation of a full-width superstructure according to claim 3, characterized by The auxiliary support is arranged at a position corresponding to the solid ribbed plate of the longitudinal bulkhead with the solid ribbed plate.

5. The construction method for preventing deformation of a full-width superstructure according to claim 4, characterized by A T-shaped profile is arranged inside the peripheral wall corresponding to the solid ribbed plate of the longitudinal bulkhead with the solid ribbed plate, and one end of the diagonal support auxiliary beam and the support auxiliary beam supporting the peripheral wall is supported on the T-shaped profile inside the peripheral wall.

6. The construction method for preventing deformation of a full-width superstructure according to claim 5, characterized by The end of the auxiliary support close to the longitudinal bulkhead is provided with a first locking device, the first locking device comprises 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 ribbed plate of the longitudinal bulkhead is formed between the two first clamping plates, a first clamping groove 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 on the other side of the first back plate.

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

8. The construction method for preventing deformation of a full-width superstructure according to claim 7, characterized by, The first clamping plate is further provided with a first adjusting screw for adjusting the clamping tightness of the first clamping space, and the first adjusting screw and the first clamping plate are threadedly connected; the second clamping plate is further provided with a second adjusting screw for adjusting the clamping tightness of the second clamping space, and the second adjusting screw and the second clamping plate are threadedly connected.

9. The construction method for preventing deformation of a full-width superstructure according to claim 8, characterized by, The second clamping plate is provided with a connecting shaft corresponding to the second back plate, the second back plate is provided with a round hole corresponding to the connecting shaft, one end of the connecting shaft penetrating through the round 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. The construction method for preventing deformation of a full-width superstructure according to claim 2, characterized by, The support main beam and the support auxiliary beam are provided with a socket, and the support main beam and the support auxiliary beam are further provided with a locking bolt for locking the socket position between the support main beam and the support auxiliary beam.

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