CN119796438A - A construction method for preventing deformation of full-width superstructure - Google Patents
A construction method for preventing deformation of full-width superstructure Download PDFInfo
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Abstract
本发明涉及一种全宽型上层建筑防止变形的施工方法，包括：步骤1、在分段装配阶段，装配定位完成后，在上层建筑未设置实肋板的纵向舱壁下口和外围壁的下口之间设置辅助支撑；步骤2、进行分段的装配焊接，待装配焊接完成后，解除辅助支撑的支撑；步骤3、待上层建筑应力释放完成后，对上层建筑进行建造精度测量及修正；步骤4、辅助支撑复位支撑；步骤5、对上层建筑进行吊装，吊装松钩前拆除辅助支撑。本发明通过拆除辅助支撑进行应力释放，避免由于辅助支撑的存在导致装配应力无法释放，进而避免由于辅助支撑的存在对上建分段的建造精度测量产生影响，使得上建分段处于自然状态下，提升精度测量修正的准确性。
The present invention relates to a construction method for preventing deformation of a full-width superstructure, comprising: step 1, in the stage of segmented assembly, after assembly positioning is completed, an auxiliary support 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; step 2, performing segmented assembly welding, and after the assembly welding is completed, releasing the support of the auxiliary support; step 3, after the stress release of the superstructure is completed, measuring and correcting the construction accuracy of the superstructure; step 4, resetting the support of the auxiliary support; step 5, hoisting the superstructure, and removing the auxiliary support before the hoisting hook is released. The present invention releases stress by removing the auxiliary support, thereby avoiding the inability to release assembly stress due to the existence of the auxiliary support, and further avoiding the influence of the existence of the auxiliary support on the construction accuracy measurement of the upper construction segment, so that the upper construction segment is in a natural state, and the accuracy of the accuracy measurement correction is improved.
Description
Technical Field
The invention relates to the field of ship construction, in particular to a construction method for preventing deformation of a full-width superstructure.
Background
As the full-width type subsection division is adopted for part of superstructure, the prior full-width type superstructure construction is disclosed in the patent document with publication number of CN118928690A, namely the full-width type superstructure subsection construction and total group positioning method, the plates adopted by the superstructure subsection are usually thin plates, the total group carrying correction workload is large due to assembly precision, hoisting and the like in the construction process, and the subsection is easy to deform in the shelving process.
Although the full-width type subsection can improve the construction efficiency, the positioning size is difficult to adjust, and the transverse position of an upper building is difficult to adjust, and because the requirements of arrangement in a cabin are met, solid rib plates are not arranged, and in order to ensure the requirements of total strength, only longitudinal continuous longitudinal bulkhead walls are arranged, wherein the span of the longitudinal continuous bulkhead walls can reach about 10 meters, and the difficulty of construction and hoisting is increased because of the absence of the transverse solid rib plates.
Disclosure of Invention
In order to solve the problem that the full-width superstructure is easy to deform in the construction process, the invention provides a construction method for preventing the full-width superstructure from deforming, the auxiliary support is used for supporting, the auxiliary support is removed, the transverse position of the full-width superstructure is supported and reinforced again through the auxiliary support after the stress release is completed, the deformation is avoided, the welding and assembly stress is released, and the construction deviation is reduced.
The technical purpose of the invention is realized by the following technical scheme:
a construction method for preventing deformation of a full-width superstructure, the method comprising:
Step 1, after the assembly and positioning are completed in the stage of sectional assembly of a full-width type superstructure, an auxiliary support is arranged between a lower opening of a longitudinal bulkhead without a solid rib plate of the superstructure and a lower opening of a peripheral wall, and the auxiliary support is detachably connected with the longitudinal bulkhead and the auxiliary support and the peripheral wall;
Step 2, carrying out sectional assembly welding, and releasing the support of the auxiliary support after the assembly welding is finished;
step3, after the stress of the superstructure is released, building precision measurement is carried out on the superstructure, and the area which does not meet the building precision requirement is corrected according to the measurement result;
Step 4, supporting the longitudinal bulkhead and the peripheral wall of the superstructure, which are not provided with the solid rib plates, through auxiliary supports after the correction is completed;
And 5, hoisting the superstructure, and dismantling the auxiliary support before hoisting the loose hooks.
Further, 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, the other end of the support main beam is movably connected with the other end of the support auxiliary beam, and the support span of the auxiliary support is adjusted through the movable connection position.
Further, the lower end of the supporting main beam is also provided with an inclined supporting auxiliary beam, one end of the inclined supporting auxiliary beam is supported at the lower end of the supporting main beam, and the other end of the inclined supporting auxiliary beam is supported on a peripheral wall below the supporting auxiliary beam.
Further, the auxiliary support is arranged at a position corresponding to the solid rib of the longitudinal bulkhead having the solid rib.
Further, the T-shaped material is arranged on the inner side of the peripheral wall corresponding to the solid rib plate of the longitudinal bulkhead with the solid rib plate, and one end of the inclined support auxiliary beam and the support auxiliary beam support peripheral wall is supported on the T-shaped material on the inner side of the peripheral wall.
Further, one end of the auxiliary support, which is close to the longitudinal bulkhead, is provided with a first locking device, the first locking device comprises a first backboard and two first clamping plates arranged on one surface of the first backboard, a first clamping space for clamping the solid rib plates 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 plates and the first backboard, and the auxiliary support is connected and fixed on the other surface of the first backboard.
Further, one end of the auxiliary support, which is close to the cabin surrounding wall, is provided with a second locking device, the second locking device comprises a second backboard, a second side plate and a second clamping plate, the second side plate and the second clamping plate are arranged on one surface of the second backboard, the auxiliary support is fixedly connected to the other surface of the second backboard, the second side plate is perpendicular to the second backboard, the second clamping plate is arranged on the other side of the second backboard, the second clamping plate is L-shaped, a second clamping space for clamping a panel of a T-shaped material is formed between the second clamping plate and the second backboard, and the second clamping plate and the second backboard are detachably connected.
Further, the first clamping plate is further provided with a first adjusting screw member for adjusting the clamping tightness of the first clamping space, the first adjusting screw member is in threaded fit connection with the first clamping plate, the second clamping plate is further provided with a second adjusting screw member for adjusting the clamping tightness of the second clamping space, and the second adjusting screw member is in threaded fit connection with the second clamping plate.
Further, 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, which penetrates through the round hole, is provided with external threads, and one end of the external threads of the connecting shaft is provided with a locking nut.
Further, the support main beam and the support auxiliary beam are arranged in a socket joint manner, and a locking bolt used for locking the socket joint position between the support main beam and the support auxiliary beam is further arranged between the support main beam and the support auxiliary beam.
Compared with the prior art, the invention has the beneficial effects that:
1. The invention increases the strength between the longitudinal bulkhead and the peripheral wall without the solid rib plates through the arrangement of the auxiliary support, on one hand, plays a role of positioning support before assembly and welding, and is convenient to detach for stress release after assembly and welding, and after correction, the auxiliary support is used for reinforcing support, so that deformation in the processes of shelving and subsequent hoisting is avoided.
2. According to the invention, the auxiliary support is removed for stress release, so that the problem that the assembly stress cannot be released due to the existence of the auxiliary support is avoided, the influence on the construction precision measurement of the upper building section due to the existence of the auxiliary support is further avoided, the support of the auxiliary support is released, the upper building section is in a natural state, the precision measurement accuracy is improved, and an accurate measurement basis is provided for correction.
Drawings
Fig. 1 is a sectional assembled reverse plan view of the full width superstructure of the present invention.
FIG. 2 is a schematic side view of the support of the auxiliary support of the present invention between the peripheral wall and the longitudinal bulkhead.
FIG. 3 is a schematic top view of the support of the auxiliary support of the present invention between the peripheral wall and the longitudinal bulkhead.
Fig. 4 is a schematic view of an auxiliary support structure according to the present invention.
Fig. 5 is a schematic view of the use of the auxiliary support of fig. 4 according to the present invention.
Fig. 6 is a schematic view of the use of the first locking device of the present invention for supporting the end of the auxiliary beam.
Fig. 7 is a schematic view of the lower end of the support main beam of fig. 6 provided with a diagonal bracing auxiliary beam according to the present invention.
Fig. 8 is a schematic structural view of a second locking device in the present invention.
Fig. 9 is a schematic view of another auxiliary support structure according to the present invention.
In the figure:
1. An upper deck; 2, peripheral walls, 3, longitudinal bulkheads, 4, solid rib plates, 5, auxiliary supports, 6, T-shaped materials, 7, a first locking device, 8, a third locking device, 9, diagonal auxiliary beams and 10, a second locking device;
51. The main beam is supported, the auxiliary beam is supported, and the locking bolt is locked;
71. the first back plate, 72, a first clamping plate, 73, a first clamping groove, 74, a first adjusting screw;
81. the third backboard, 82, the third clamping plate, 83, the third clamping groove, 84, the third adjusting screw;
101. the second backboard, 102, the second side board, 103, the second clamping plate, 104, the connecting shaft, 105, the lock nut, 106 and the second adjusting screw.
Detailed Description
The technical scheme of the invention is further described below with reference to the specific embodiments:
a construction method for preventing deformation of a full-width superstructure, the method comprising:
Step 1, in the stage of sectional assembly of the full-width superstructure, as shown in fig. 1, the full-width superstructure comprises a superstructure deck 1, a peripheral wall 2 arranged below the superstructure deck 1, and longitudinal bulkheads 3 arranged at transverse positions in the peripheral wall 2, solid rib plates 4 are connected between the two longitudinal bulkheads 3 in the middle, the solid rib plates are not arranged between the longitudinal bulkheads 3 and the peripheral wall 2, and longitudinally arranged flat-bulb steel profiles 5 are respectively arranged on the inner side of the peripheral wall 2, the framework surface of the solid rib plates 4 and the framework surface of the longitudinal bulkhead 3. The full-width superstructure is constructed in a reverse construction mode, and longitudinal bulkheads 3, peripheral walls 2 and solid ribs 4 are assembled on the upper deck 1 in a positioning mode, as shown in fig. 2.
After the assembly and positioning are completed, an auxiliary support 5 is arranged between the lower opening of the longitudinal bulkhead without the solid rib plate of the superstructure and the lower opening of the peripheral wall, and the auxiliary support 5 is detachably connected with the longitudinal bulkhead 3 and the auxiliary support 5 and the peripheral wall 2.
Preferably, the auxiliary supports 5 are arranged in a position corresponding to the solid ribs 4 of the longitudinal bulkheads with solid ribs, as shown in figures 2 and 3.
And 2, carrying out sectional assembly welding, and after the assembly welding is finished, releasing the support of the auxiliary support on the longitudinal bulkhead and the peripheral wall, and carrying out stress release in a state of being not limited by the auxiliary support, wherein the stress release can be carried out by means of a fire worker, knocking and the like.
And 3, after the stress of the superstructure is released, building precision measurement is carried out on the superstructure, and the area which does not meet the requirement of building precision is corrected according to the measurement result, wherein the measurement comprises but is not limited to measurement of the assembly position, and measurement of the assembly levelness and verticality.
Step 4, supporting the longitudinal bulkhead and the peripheral wall of the superstructure, which are not provided with the solid rib plates, through the auxiliary support 5 after the correction is completed;
And 5, hoisting the superstructure, removing the auxiliary support before the hook is loosened, wherein the hoisting comprises different stages, such as hoisting in a designated area for placing after construction is completed, and further comprises a main group hoisting, wherein the auxiliary support main group hoisting is carried out to a tail sound stage, such as after sectional positioning is completed, leaving a space for removing the auxiliary support before the hook is loosened.
In one embodiment, since no solid rib is provided between the longitudinal bulkhead and the peripheral wall, a T-profile 6 may be provided at a position of the peripheral wall corresponding to the solid rib, the T-profile 6 being provided longitudinally, the longitudinal direction in this embodiment being defined as the direction perpendicular to the upper deck.
Preferably, a plurality of flat bulb steel sections are respectively arranged on the inner side of the peripheral wall, the longitudinal bulkhead and the solid rib plate, the flat bulb steel sections are longitudinally arranged, and the space between the flat bulb steels is 700-900mm.
In one embodiment, as shown in fig. 4, the auxiliary support 5 comprises a support main beam 51 and a support auxiliary beam 52, one end of the support main beam 51 is detachably connected with the longitudinal bulkhead through the first locking device 7, one end of the support auxiliary beam 52 is detachably connected with the peripheral wall through the third locking device 8, the other end of the support main beam 51 forms a hollow sleeve structure, the other end of the support auxiliary beam 52 is movably inserted into the hollow sleeve structure of the support main beam 51, and different support span adjustment is realized by adjusting the length of the support auxiliary beam 52 inserted into the hollow sleeve structure. The side wall of the hollow sleeve structure is provided with a threaded hole, a locking bolt 53 is installed in the threaded hole in a matched mode, and the locking of the relative position between the supporting main beam 51 and the supporting auxiliary beam 52 is achieved by the fact that the locking bolt 53 props against the outer side wall of the supporting auxiliary beam 52.
More specifically, the first locking device 7 includes a first back plate 71, two first clamping plates 72 disposed on one surface 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 plates 72 and the first back plate 71, and opposite ends of the supporting main beam 51, where the hollow sleeve structure is disposed, are fixedly connected to the other surface of the first back plate 71.
The third locking device 8 comprises a third back plate 81 and a third clamping plate 82 arranged on one surface of the third back plate, a third clamping groove 83 clamped by a peripheral wall is formed between the third clamping plate 82 and the third back plate 81, and the supporting auxiliary beam 82 is fixedly connected to the other surface of the third back plate 81.
In use, as shown in fig. 5, the lower opening of the longitudinal bulkhead 3 is inserted into the first clamping groove 73, the lower opening of the solid rib plate 4 is inserted into the first clamping space, the first clamping plate is provided with a first adjusting screw 74 in a threaded fit manner, the first adjusting screw 74 is screwed to enable the first adjusting screw to abut against the solid rib plate 4 from two sides, the lower opening of the peripheral wall 2 is inserted into the third clamping groove 83, the third clamping plate 82 is provided with a third adjusting screw 84 in a threaded fit manner, the third adjusting screw 84 is screwed to enable the third adjusting screw to abut against the peripheral wall 2, finally the locking bolt 53 is screwed to enable the relative position between the supporting main beam 51 and the supporting auxiliary beam 52 to be locked, and finally the adjusting locking bolt 53 can avoid additional traction and supporting effects on the peripheral wall 2 and the longitudinal bulkhead 3 in the stage of installing the auxiliary support 5.
Preferably, when the T-section bar 6 is provided, the supporting auxiliary beam 52 may be connected to the T-section bar 6 by means of the first locking device 7, as shown in fig. 6, the lower opening position of the panel of the T-section bar is inserted into the first clamping groove 73 of the first locking device 7 supporting the end of the auxiliary beam 52, and the lower opening position of the web of the T-section bar is inserted into the first clamping space of the first locking device 7 supporting the end of the auxiliary beam 52, and the first adjusting screw 74 is screwed so that the first adjusting screw abuts against the web of the T-section bar 6 from both sides.
Preferably, as shown in fig. 7, the lower end of the supporting main beam 51 is further provided with an auxiliary diagonal beam 9, one end of the auxiliary diagonal beam 9 is supported at the lower end of the supporting main beam 51, the other end of the auxiliary diagonal beam 9 is supported on the peripheral wall below the auxiliary supporting beam 52, when the peripheral wall is not provided with a T-shaped material, the end of the auxiliary diagonal beam and the peripheral wall 2 can be welded, in this embodiment, the end of the auxiliary diagonal beam 9 is connected with the T-shaped material 6 by clamping, taking the case of the T-shaped material as an example.
When the support of the auxiliary support is released, the locking bolt is unscrewed or the clamping of the third locking device is detached, and when the auxiliary diagonal support beam 9 is arranged, the connection between the auxiliary diagonal support beam 9 and the peripheral wall or the T-shaped material is also required to be released.
Specifically, the side wall of the supporting main beam 51 is provided with a double-lug plate mounting seat, two ends of the inclined support auxiliary beam 9 are respectively provided with a connecting lug plate, the connecting lug plate at one end of the inclined support auxiliary beam 9 is mounted on the double-lug plate mounting seat of the side wall of the supporting main beam 51 through a pin shaft, the connecting lug plate at the other end of the inclined support auxiliary beam 9 is hinged with a second locking device 10, and the connection between the inclined support auxiliary beam 9 and the T-shaped material is realized through the second locking device 10.
Specifically, as shown in fig. 8, the second locking device 10 is shown in fig. 8, 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, wherein an end portion of the diagonal bracing auxiliary beam 9 is hinged to the other side of the second back plate 101, the second side plate 102 is perpendicular to the second back plate 101 and disposed on one side of the second back plate 101, the second clamping plate 103 is disposed on the other side of the second back plate, the second clamping plate 103 is L-shaped, a second clamping space for clamping a T-shaped panel is formed between the second clamping plate 103 and the second back plate 101, the second clamping space is opened towards the second side plate 102 in a working state, the second clamping plate 103 is provided with a connecting shaft 104 corresponding to the second back plate 101, a round hole is disposed on the connecting shaft, an external thread is disposed on one end of the connecting shaft 104 penetrating through the round hole, a locking nut 105 is disposed on one end of the connecting shaft 104, the second clamping plate 103 is further provided with a second adjusting screw 106 for adjusting tightness of the second clamping space, and the second adjusting screw 106 is in threaded fit with the second clamping plate 103.
When the T-shaped panel is used, one side of the T-shaped panel is clamped by the second clamping space, the T-shaped panel is limited by the second side plate from the other side of the T-shaped panel, and the second side plate and the T-shaped panel can be prevented from being contacted, so that the second side plate mainly prevents the T-shaped panel from being completely separated from the second clamping space transversely. The second adjusting screw 106 is screwed such that the second adjusting screw 106 abuts against the back side of the panel of the T-profile and the second back plate abuts against the front side of the panel supporting the T-profile.
When the second locking device is installed, the second clamping plate 103 is rotated relative to the connecting shaft 104, so that the second clamping plate 103 does not influence the second backboard 101 to be abutted against the front surface of the panel of the T-shaped material, after the second backboard 101 is abutted against the front surface of the panel of the T-shaped material, the second clamping plate 103 is rotated along the connecting shaft 104 so that the second clamping plate is rotated to the back surface of the panel of the T-shaped material, the locking nut 105 is screwed so that the position of the second clamping plate 103 is fixed, and then the second adjusting screw 106 is screwed to be abutted against the back surface of the panel of the T-shaped material.
In another embodiment, as shown in fig. 9, a first locking device 7 is disposed at one end of the supporting main beam 51, a second locking device 10 is disposed at one end of the supporting auxiliary beam 52, and the second locking device 10 at the end of the supporting auxiliary beam 52 has substantially the same structure as the second locking device 10 at the end of the supporting auxiliary beam 9, except that the end of the supporting auxiliary beam 52 is vertically and fixedly connected to the second back plate 101 of the second locking device, as shown in fig. 9, and the end of the supporting auxiliary beam 9 is hinged to the second back plate 101 of the second locking device 10. When the support of the auxiliary support is released, the locking bolt 53 is unscrewed or the clamping of the second locking device to the T-shaped material is detached, and the whole auxiliary support is not required to be taken down.
The present embodiment is further illustrative of the present invention and is not to be construed as limiting the invention, and those skilled in the art can make no inventive modifications to the present embodiment as required after reading the present specification, but only as long as they are within the scope of the claims of the present invention.
Claims (10)
1. The construction method for preventing deformation of the full-width superstructure is characterized by comprising the following steps of:
Step 1, after the assembly and positioning are completed in the stage of sectional assembly of a full-width type superstructure, an auxiliary support is arranged between a lower opening of a longitudinal bulkhead without a solid rib plate of the superstructure and a lower opening of a peripheral wall, and the auxiliary support is detachably connected with the longitudinal bulkhead and the auxiliary support and the peripheral wall;
Step 2, carrying out sectional assembly welding, and releasing the support of the auxiliary support after the assembly welding is finished;
step3, after the stress of the superstructure is released, building precision measurement is carried out on the superstructure, and the area which does not meet the building precision requirement is corrected according to the measurement result;
Step 4, supporting the longitudinal bulkhead and the peripheral wall of the superstructure, which are not provided with the solid rib plates, through auxiliary supports after the correction is completed;
And 5, hoisting the superstructure, and dismantling the auxiliary support before hoisting the loose hooks.
2. The method for constructing a full-width superstructure against deformation according to claim 1, wherein the auxiliary support comprises a support girder and a support auxiliary girder, one end of the support girder is detachably connected with the longitudinal bulkhead, one end of the support auxiliary girder is detachably connected with the peripheral wall, the other end of the support girder is movably connected with the other end of the support auxiliary girder, and a support span of the auxiliary support is adjusted by the movable connection position.
3. The construction method for preventing deformation of a full-width superstructure according to claim 2, wherein the lower end of the supporting girder is further provided with a diagonal auxiliary girder, one end of which is supported at the lower end of the supporting girder, and the other end of which is supported on a peripheral wall at a position below the supporting auxiliary girder.
4. A method of construction of a full width superstructure against deformation according to claim 3, wherein the auxiliary supports are provided at positions corresponding to solid ribs of the longitudinal bulkheads with solid ribs.
5. The construction method for preventing deformation of a full-width superstructure according to claim 4, wherein the T-section is provided at the inner side of the peripheral wall corresponding to the solid rib plate of the longitudinal bulkhead having the solid rib plate, and one ends of the diagonal auxiliary beams and the supporting auxiliary beam supporting peripheral wall are supported on the T-section at the inner side of the peripheral wall.
6. The method for preventing deformation of a full-width superstructure according to claim 5, wherein the auxiliary support is provided with a first locking device at one end near the longitudinal bulkhead, the first locking device comprises a first back plate and two first clamping plates arranged on one surface of the first back plate, a first clamping space for clamping the solid rib 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 plates and the first back plate, and the auxiliary support is fixedly connected to the other surface of the first back plate.
7. The construction method for preventing deformation of a full-width superstructure according to claim 6, wherein a second locking device is arranged at one end of the auxiliary support, which is close to the cabin wall, and comprises a second backboard, a second side plate and a second clamping plate, wherein the second side plate and the second clamping plate are arranged on one surface of the second backboard, the auxiliary support is connected and fixed on the other surface of the second backboard, the second side plate is perpendicular to the second backboard, the second clamping plate is arranged on the other side of the second backboard, the second clamping plate is L-shaped, a second clamping space for clamping a T-shaped panel is formed between the second clamping plate and the second backboard, and the second clamping plate is detachably connected with the second backboard.
8. The construction method for preventing deformation of a full-width superstructure according to claim 7, wherein the first clamping plate is further provided with a first adjusting screw for adjusting clamping tightness of the first clamping space, the first adjusting screw is in threaded fit connection with the first clamping plate, the second clamping plate is further provided with a second adjusting screw for adjusting clamping tightness of the second clamping space, and the second adjusting screw is in threaded fit connection with the second clamping plate.
9. The construction method for preventing deformation of a full-width superstructure according to claim 8, wherein the second clamping plate is provided with a connecting shaft corresponding to the second backboard, the second backboard 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 the full-width superstructure according to claim 2, wherein the supporting main beam and the supporting auxiliary beam are arranged in a socket joint manner, and locking bolts for locking the socket joint position between the supporting main beam and the supporting auxiliary beam are further arranged between the supporting main beam and the supporting auxiliary beam.
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| CN202510174362.0A CN119796438B (en) | 2025-02-18 | 2025-02-18 | A construction method for preventing deformation of a full-width superstructure |
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