CN221422643U - Cantilever formwork structure - Google Patents
Cantilever formwork structure Download PDFInfo
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- CN221422643U CN221422643U CN202322704486.4U CN202322704486U CN221422643U CN 221422643 U CN221422643 U CN 221422643U CN 202322704486 U CN202322704486 U CN 202322704486U CN 221422643 U CN221422643 U CN 221422643U
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- steel
- connecting mechanism
- formwork structure
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- cantilever
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- 238000009415 formwork Methods 0.000 title claims abstract description 59
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 113
- 239000010959 steel Substances 0.000 claims abstract description 113
- 230000007246 mechanism Effects 0.000 claims abstract description 65
- 239000000725 suspension Substances 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 6
- 230000008093 supporting effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
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Abstract
The utility model discloses a cantilever formwork structure, which comprises: the first I-steel is overhanging on the ground of an upper floor and is arranged at intervals; the first I-steel is detachably connected with the ground of the upper floor through the first connecting mechanism; the first I-steel is detachably connected with the ground of the upper floor through the second connecting mechanism; the first connecting mechanism and the second connecting mechanism are arranged at intervals; the upper end of the second I-beam is connected with the suspension part of the first I-beam, and the lower end of the second I-beam is connected with the shear wall of the lower floor; and the lower end of the second I-steel is detachably connected with the shear wall through the third connecting mechanism. According to the utility model, the first I-steel is fixed on the ground of an upper floor through the first connecting mechanism and the second connecting mechanism which are arranged at intervals, so that the fixing effect of the first I-steel is obviously improved, and the safety is improved.
Description
Technical Field
The utility model relates to the technical field of cantilever formwork, in particular to a cantilever formwork structure.
Background
The structure formwork outside the protruding building often adopts a floor type scaffold formwork support system, but for higher overhanging layers, the steel pipe of the floor type scaffold formwork support system is large in use amount, small in rigidity of a frame body, poor in stability of the frame body and complicated in mounting and dismounting, so that the construction cost of the overhanging formwork structure is high, the working hours are long, the overhanging span is small, and the construction safety cannot be effectively ensured. The bailey frame cantilever formwork support system is adopted, so that the number of pre-buried fixed nodes is large, the nodes are difficult to fix, and the hoisting amount is large.
The cantilever supporting die structure formed by combining the inclined strut steel pipes and the cantilever steel pipes is large in cantilever span, so that the consumption of the steel pipes can be reduced, and the construction efficiency is improved. However, because the inclined strut steel pipe and the cantilever steel pipe have smaller strength, poor supporting effect and inconvenient installation, the cantilever formwork structure also has larger potential safety hazard.
Disclosure of utility model
The utility model mainly aims to provide an overhanging formwork structure so as to solve the technical problem that the overhanging formwork structure formed by combining inclined strut steel pipes and overhanging steel pipes in the prior art has great potential safety hazard.
In order to achieve the above purpose, the utility model provides two cantilever formwork structures, the technical scheme is as follows:
First kind encorbelments formwork structure includes: the first I-steel is overhanging on the ground of an upper floor and is arranged at intervals; the first I-steel is detachably connected with the ground of the upper floor through the first connecting mechanism; the first I-steel is detachably connected with the ground of the upper floor through the second connecting mechanism; the first connecting mechanism and the second connecting mechanism are arranged at intervals; the upper end of the second I-beam is connected with the suspension part of the first I-beam, and the lower end of the second I-beam is connected with the shear wall of the lower floor; and the lower end of the second I-steel is detachably connected with the shear wall through the third connecting mechanism.
In the first cantilever formwork structure, the cantilever steel pipe is replaced by the first I-steel, the diagonal bracing steel pipe is replaced by the second I-steel, the supporting effect is better, and the strength is obviously improved. The first I-steel and the second I-steel adopt a detachable connection mode, and the construction efficiency is high. The first I-steel is fixed on the ground of an upper floor through the first connecting mechanisms and the second connecting mechanisms which are arranged at intervals, so that the fixing effect of the first I-steel is remarkably improved, and the safety is improved.
As a further improvement of the first overhanging formwork structure, the following is adopted: the first connecting mechanism comprises a U-shaped piece, the U-shaped piece is reversely buckled on the first I-steel, and a rod body of the U-shaped piece passes through the ground of an upper floor and is fastened by a nut.
As a further improvement of the first overhanging formwork structure, the following is adopted: the second connecting mechanism comprises a first bolt, and the first bolt sequentially passes through the upper floor surface and the flange of the first I-steel and is fastened by a nut.
As a further improvement of the first overhanging formwork structure, the following is adopted: the third connecting mechanism comprises a second bolt and a first backing plate, the lower ends of the first backing plate and the second I-steel are welded, and the second bolt sequentially penetrates through the shear wall and the first backing plate and is fastened by nuts.
As a further improvement of the first overhanging formwork structure, the following is adopted: the upper end of the second I-steel is detachably connected with the suspension part of the first I-steel through a fourth connecting mechanism.
As a further improvement of the first overhanging formwork structure, the following is adopted: the fourth connecting mechanism comprises a third bolt and a second base plate, the second base plate is welded with the upper end of the second I-steel, and the third bolt sequentially penetrates through the flange of the first I-steel and the first base plate and is fastened by adopting a nut.
As a further improvement of the first overhanging formwork structure, the following is adopted: the scaffold also comprises joint beams which are bridged above the first I-steel arranged at intervals, wherein the joint beams are provided with lugs which are matched with the vertical steel pipes of the scaffold at intervals.
As a further improvement of the first overhanging formwork structure, the following is adopted: the center distance between the first connecting mechanism and the second connecting mechanism is 300-800 mm.
As a further improvement of the first overhanging formwork structure, the following is adopted: the length of the first I-steel is 5000-7000 mm; the length of the suspended part of the first I-steel is 1/3-1/2 of the total length.
As a further improvement of the first overhanging formwork structure, the following is adopted: the distance between the connection part of the upper end of the second I-steel and the suspension part of the first I-steel and the end part of the first I-steel is 200-600 mm; the included angle between the first I-steel and the second I-steel is 30-60 degrees.
The second kind encorbelments formwork structure includes: the first I-steel is overhanging on the ground of an upper floor and is arranged at intervals; the first I-steel is detachably connected with the ground of the upper floor; the upper end of the second I-steel is connected with the suspension part of the first I-steel, and the lower end of the second I-steel is supported on the ground of the lower floor; the rectangular tube is arranged on the ground of the lower storey, the upper surface of the rectangular tube is connected with the lower end of the second I-steel, and the rectangular tube is connected with the ground of the lower storey and/or the shear wall; the connecting assembly is used for detachably connecting the rectangular tube with the lower floor.
In the second cantilever formwork structure, the cantilever steel pipe is replaced by the first I-steel, the diagonal bracing steel pipe is replaced by the second I-steel, the supporting effect is better, and the strength is obviously improved. The first I-steel and the second I-steel adopt a detachable connection mode, and the construction efficiency is high. The second I-steel is firmly fixed on the lower floor through the rectangular tube and the connecting assembly, and the fixing effect of the second I-steel is remarkably improved, so that the safety is improved.
As a further improvement of the second overhanging formwork structure: the connecting assembly comprises a first connecting structure, the first connecting structure is arranged at two ends of the rectangular tube, the first connecting structure comprises a wall penetrating screw, and the wall penetrating screw is fastened by nuts after penetrating through the shear wall and the rectangular tube.
As a further improvement of the second overhanging formwork structure: the connecting assembly further comprises a second connecting structure, the second connecting structure comprises expansion bolts and angle steel, one side plate of the angle steel props against the rectangular tube, and the other side plate of the angle steel is anchored on the ground of the lower floor through the expansion bolts.
As a further improvement of the second overhanging formwork structure: the second connecting structure is at least arranged in the middle of the rectangular tube; the second connection structure comprises at least two expansion bolts arranged at intervals.
As a further improvement of the second overhanging formwork structure: the upper surface of the rectangular tube is detachably connected with the lower end of the second I-steel through a third connecting structure.
As a further improvement of the second overhanging formwork structure: the third connection structure comprises a steel backing plate and a fixing bolt, the steel backing plate is welded with the lower end of the second I-shaped steel, one end of the fixing bolt is welded on the rectangular tube, and the other end of the fixing bolt penetrates through the steel backing plate and is fastened by a nut.
As a further improvement of the second overhanging formwork structure: the first I-steel is detachably connected with the ground of the upper floor through a first connecting mechanism and a second connecting mechanism which are arranged at intervals; the upper end of the second I-steel is detachably connected with the suspension part of the first I-steel through a fourth connecting mechanism.
As a further improvement of the second overhanging formwork structure: the first connecting mechanism comprises a U-shaped piece, the U-shaped piece is reversely buckled on the first I-steel, and a rod body of the U-shaped piece passes through the ground of an upper floor and is fastened by a nut.
As a further improvement of the second overhanging formwork structure: the second connecting mechanism comprises a first bolt, and the first bolt sequentially passes through the upper floor surface and the flange of the first I-steel and is fastened by a nut.
As a further improvement of the second overhanging formwork structure: the fourth connecting mechanism comprises a third bolt and a second base plate, the second base plate is welded with the upper end of the second I-steel, and the third bolt sequentially penetrates through the flange of the first I-steel and the first base plate and is fastened by adopting a nut.
The cantilever formwork structure has the advantages of simple structure, convenient disassembly and assembly, high construction efficiency, high strength, good supporting effect and high safety, effectively solves the technical problem of large potential safety hazard of the cantilever formwork structure formed by combining the inclined strut steel pipe and the cantilever steel pipe in the prior art, and has extremely strong practicability.
Additional aspects and advantages of the inventive embodiments provided herein will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the inventive embodiments provided herein.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain, without undue limitation, the embodiments of the invention. In the drawings:
Fig. 1 is a schematic structural diagram of an overhanging formwork structure in embodiment 1 of the present utility model.
Fig. 2 is a schematic structural diagram of an overhanging formwork structure in embodiment 2 of the present utility model.
Fig. 3 is a schematic structural view of a connection assembly in the cantilever formwork structure of embodiment 2 of the present utility model.
The relevant marks in the drawings are as follows:
110-first I-steel, 120-second I-steel, 130-yoke, 210-upper floor, 220-lower floor, 230-shear wall, 310-U-shaped piece, 320-cushion block, 410-first bolt, 510-first backing plate, 520-second bolt, 610-second backing plate, 620-third bolt, 700-rectangular tube, 710-wall penetrating screw, 720-angle steel, 730-expansion bolt, 810-steel backing plate, 820-fixing bolt and 900-reinforcing mechanism.
Detailed Description
The following provides a clear and complete description of the inventive embodiments provided in this specification in connection with the accompanying drawings. Those skilled in the art will be able to implement the embodiments of the invention provided herein based on these descriptions. Before describing embodiments of the invention provided in this specification with reference to the drawings, it should be noted in particular that:
In the embodiments of the invention provided in the present specification, the technical solutions and technical features provided in the respective sections including the following description may be combined with each other without conflict.
In addition, the embodiments of the invention provided in the present specification referred to in the following description are generally only some, but not all, embodiments of the invention provided in the present specification, and therefore, all other embodiments obtained by a person having ordinary skill in the art based on the embodiments of the invention provided in the present specification without making any creative effort shall fall within the scope of protection of the embodiments of the invention provided in the present specification.
Terms and units in the examples of the invention provided in the present specification: the terms "comprising," "including," "having," and any variations thereof, in the description and claims of embodiments of the invention and in the relevant parts, are intended to cover a non-exclusive inclusion. In addition, other related terms and units in the embodiments of the invention provided in the present specification can be reasonably interpreted based on the related contents of the embodiments of the invention provided in the present specification.
Example 1
Fig. 1 is a schematic structural diagram of a cantilever formwork structure in this embodiment.
As shown in fig. 1, the cantilever formwork structure includes a first i-beam 110, a second i-beam 120, a first connection mechanism, a second connection mechanism, a third connection mechanism, a fourth connection mechanism, and a yoke 130. The first i-beams 110 are overhanging the upper floor 210 and are arranged at intervals. The first i-beam 110 is detachably connected with the upper floor 210 through a first connecting mechanism; the first i-beam 110 is detachably connected with the upper floor 210 through a second connecting mechanism; the first connecting mechanism and the second connecting mechanism are arranged at intervals. The upper end of the second i-beam 120 is connected to the suspended portion of the first i-beam 110, and the lower end of the second i-beam 120 is connected to the shear wall 230 of the lower floor. The lower end of the second i-beam 120 is detachably connected to the shear wall 230 through a third connection mechanism. The upper end of the second i-beam 120 is detachably connected to the suspended portion of the first i-beam 110 through a fourth connection mechanism.
The first connecting mechanism comprises a U-shaped member 310 and a cushion block 320, the U-shaped member 310 is inversely fastened on the first i-steel 110, and a rod body of the U-shaped member 310 passes through the upper floor 210 and the cushion block 320 and is fastened by a nut. A reinforcing mechanism 900 is disposed between the innermost first connecting mechanism and the end of the first i-beam 110, the reinforcing mechanism 900 is preferably the same as the first connecting mechanism in structure, the distance between the center of the reinforcing mechanism 900 and the end of the first i-beam 110 is 200mm, and the center distance between the reinforcing mechanism 900 and the first connecting mechanism is 200mm.
The second connection mechanism includes a first bolt 410, and the first bolt 410 passes through the upper floor 210 and the flange of the first i-beam 110 in sequence and then is fastened by nuts.
The third connection mechanism comprises a second bolt 520 and a first backing plate 510, the first backing plate 510 is welded with the lower end of the second i-steel 120, and the second bolt 520 sequentially passes through the shear wall 230 and the first backing plate 510 and is fastened by nuts.
The fourth connection mechanism includes a third bolt 620 and a second pad 610, the second pad 610 is welded to the upper end of the second i-beam 120, and the third bolt 620 passes through the flange of the first i-beam 110 and the first pad 510 in sequence and is fastened by a nut.
The yoke 130 is bridged above the first i-steel 110 arranged at intervals, and the yoke 130 is provided with a bump adapted to the vertical steel pipe of the scaffold.
The center-to-center distance L1 between the first connecting mechanism and the second connecting mechanism is 700mm, and the number of the first connecting mechanism and the second connecting mechanism can be the same or different.
The length of the first I-steel 110 is 5000-7000 mm; the length of the suspended portion of the first i-beam 110 is 1/3-1/2 of the total length, specifically, the length of the first i-beam 110 is 6000mm, and the length of the suspended portion of the first i-beam 110 is 2600mm.
The distance L2 between the connection part of the upper end of the second i-beam 120 and the suspended part of the first i-beam 110 and the end part of the first i-beam 110 is 400mm; the included angle between the first i-steel 110 and the second i-steel 120 is 60 °.
Example 2
Fig. 2 is a schematic structural diagram of the cantilever formwork structure of the present embodiment. Fig. 3 is a schematic structural view of a connection assembly in the cantilever formwork structure of the present embodiment.
Compared with embodiment 1, the overhanging formwork structure of this embodiment has the following differences: as shown in fig. 2-3, the lower end of the second i-beam 120 is supported on the lower floor 220; the cantilever formwork structure comprises a rectangular pipe 700 and a connecting component; the rectangular tube 700 is installed on the lower floor 220, the upper surface of the rectangular tube 700 is connected with the lower end of the second I-steel 120, and the rectangular tube 700 is connected with the lower floor 220 and the shear wall 230; the rectangular tube 700 is detachably connected with the lower floor through a connecting assembly.
The connection assembly comprises a first connection structure arranged at two ends of the rectangular tube 700, the first connection structure comprises a wall penetrating screw 710, and the wall penetrating screw 710 penetrates through the shear wall 230 and the rectangular tube 700 and is fastened by nuts.
The connection assembly further comprises a second connection structure, the second connection structure comprises an expansion bolt 730 and angle steel 720, one side plate of the angle steel 720 abuts against the rectangular tube 700, and the other side plate of the angle steel 720 is anchored on the lower floor 220 through the expansion bolt 730.
The second connecting structure is at least arranged in the middle of the rectangular tube 700; the second connection structure includes at least two expansion bolts 730 arranged at intervals.
The upper surface of the rectangular tube 700 is detachably connected with the lower end of the second i-steel 120 through a third connecting structure; the third connecting structure comprises a steel backing plate 810 and a fixing bolt 820, the steel backing plate 810 is welded with the lower end of the second I-steel 120, one end of the fixing bolt 820 is welded on the rectangular tube 700, and the other end of the fixing bolt 820 penetrates through the steel backing plate 810 and is fastened by a nut.
The two cantilever formwork structures are selected according to the actual building construction mode and the installation position, and may be a combination of two cantilever formwork structures, that is, the lower ends of part of the second i-beams 120 are connected with the shear wall 230 of the lower floor, and the lower ends of part of the second i-beams 120 are supported on the ground 220 of the lower floor.
The above description has been made of the contents of the embodiments of the invention provided in the present specification. Those skilled in the art will be able to implement the embodiments of the invention provided herein based on these descriptions. Based on the foregoing of the inventive embodiments provided herein, all other preferred embodiments and examples, which a person of ordinary skill in the art would obtain without making any inventive effort, shall fall within the scope of the inventive embodiments provided herein.
Claims (10)
1. Cantilever formwork structure, its characterized in that: comprising the following steps:
The first I-steel (110) is overhanging on the upper floor (210) and is arranged at intervals;
the first I-steel (110) is detachably connected with the upper floor (210) through the first connecting mechanism;
The first I-steel (110) is detachably connected with the upper floor (210) through the second connecting mechanism; the first connecting mechanism and the second connecting mechanism are arranged at intervals;
The upper end of the second I-beam (120) is connected with the suspension part of the first I-beam (110), and the lower end of the second I-beam (120) is connected with the shear wall (230) of the lower floor;
And the lower end of the second I-steel (120) is detachably connected with the shear wall (230) through the third connecting mechanism.
2. The cantilever formwork structure of claim 1, wherein: the first connecting mechanism comprises a U-shaped piece (310), the U-shaped piece (310) is reversely buckled on the first I-steel (110), and a rod body of the U-shaped piece (310) passes through the upper floor (210) and is fastened by a nut.
3. The cantilever formwork structure of claim 1, wherein: the second connecting mechanism comprises a first bolt (410), and the first bolt (410) sequentially passes through the upper floor (210) and the flange of the first I-steel (110) and is fastened by adopting nuts.
4. The cantilever formwork structure of claim 1, wherein: the third connecting mechanism comprises a second bolt (520) and a first base plate (510), the first base plate (510) is welded with the lower end of the second I-steel (120), and the second bolt (520) sequentially penetrates through the shear wall (230) and the first base plate (510) and is fastened by nuts.
5. The cantilever formwork structure of claim 1, wherein: the upper end of the second I-steel (120) is detachably connected with the suspension part of the first I-steel (110) through a fourth connecting mechanism.
6. The cantilever formwork structure of claim 5, wherein: the fourth connecting mechanism comprises a third bolt (620) and a second base plate (610), the second base plate (610) is welded with the upper end of the second I-steel (120), and the third bolt (620) sequentially penetrates through the flange of the first I-steel (110) and the first base plate (510) and then is fastened by nuts.
7. The cantilever formwork structure of claim 1, wherein: the scaffold also comprises a yoke (130) which is bridged above the first I-steel (110) which are arranged at intervals, wherein the yoke (130) is provided with a lug which is matched with the vertical steel pipe of the scaffold.
8. The cantilever formwork structure of claim 1, wherein: the center distance between the first connecting mechanism and the second connecting mechanism is 300-800 mm.
9. The cantilever formwork structure of claim 1, wherein: the length of the first I-steel (110) is 5000-7000 mm; the length of the suspended part of the first I-steel (110) is 1/3-1/2 of the total length.
10. The cantilever formwork structure of claim 9, wherein: the distance between the connection part of the upper end of the second I-steel (120) and the suspension part of the first I-steel (110) and the end part of the first I-steel (110) is 200-600 mm; the included angle between the first I-steel (110) and the second I-steel (120) is 30-60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322704486.4U CN221422643U (en) | 2023-10-09 | 2023-10-09 | Cantilever formwork structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322704486.4U CN221422643U (en) | 2023-10-09 | 2023-10-09 | Cantilever formwork structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221422643U true CN221422643U (en) | 2024-07-26 |
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ID=92013735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322704486.4U Active CN221422643U (en) | 2023-10-09 | 2023-10-09 | Cantilever formwork structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221422643U (en) |
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2023
- 2023-10-09 CN CN202322704486.4U patent/CN221422643U/en active Active
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