CN221546304U - Cantilever support frame and scaffold sharing system - Google Patents
Cantilever support frame and scaffold sharing system Download PDFInfo
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- CN221546304U CN221546304U CN202420042546.2U CN202420042546U CN221546304U CN 221546304 U CN221546304 U CN 221546304U CN 202420042546 U CN202420042546 U CN 202420042546U CN 221546304 U CN221546304 U CN 221546304U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 126
- 239000010959 steel Substances 0.000 claims abstract description 126
- 238000009415 formwork Methods 0.000 claims abstract description 7
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000007306 turnover Effects 0.000 abstract description 4
- 238000009435 building construction Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000008439 repair process Effects 0.000 abstract description 3
- 239000004567 concrete Substances 0.000 description 10
- 210000001503 joint Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
A shared system of an overhanging support frame and a scaffold belongs to the field of building construction and comprises an overhanging steel beam, an inclined pull rod, a high-strength bolt, a double-lug pull ring and a steel pipe frame body; the overhanging steel beam is screwed and fixed with the frame beam or the shear wall around the floor through a connecting steel plate and a high-strength bolt; one end of the diagonal draw bar and the cantilever the lifting lugs on the steel beams are connected, the other end is connected with the double-lug pull ring, the double ear pull ring is screwed with the frame beam or the shear wall around the floor; the cantilever steel beam is arranged on the nth layer, the double-lug pull ring is arranged on the (n+1) th layer, and the diagonal draw bar is arranged between the cantilever steel beam on the nth layer and the double-lug pull ring on the (n+1) th layer; the steel pipe frame body is erected on the overhanging steel beam, the steel pipe frame body is erected from the Nth layer to the (N+2) th layer, and the steel pipe frame body serves as a formwork support and an outer scaffold of the overhanging reinforced concrete structure of the (N+2) th layer. The system can save material consumption, reduce material loss, increase turnover times, facilitate subsequent process construction, reduce later repair and maintenance and reduce leakage risk of the outer wall.
Description
Technical Field
The utility model relates to the field of building construction, in particular to a shared system of a cantilever support frame and a scaffold.
Background
In the building construction process, the condition that the upper layer building structure picks out the side line of the lower layer building structure is frequently met, and the high-altitude overhanging structure is difficult to construct. The supporting frame of the high-altitude cantilever structure and the scaffold system are commonly provided with a cantilever type, a diagonal type and a lower supporting type, wherein the diagonal type in the prior art is mainly characterized in that cantilever steel beams are arranged in a lower floor slab, and the cantilever steel beams are fixed on an upper structure in a diagonal manner through steel wire ropes. The overhanging steel beam is arranged on the floor slab, the steel beam is used in a large amount, the concrete structure is damaged, the subsequent cave is blocked in a troublesome manner, and leakage is easy to cause; the construction of the subsequent process is affected, and the construction waste is inconvenient to clean; the inclined-pulling steel wire rope is easy to damage, and the turnover use times are affected.
Disclosure of utility model
The utility model aims to solve the technical problems and overcome the defects of the prior art, and provides a shared system of an overhanging support frame and a scaffold, which can save material consumption, reduce material loss, increase turnover times, facilitate subsequent process construction, reduce later repair and maintenance and reduce leakage risk of an outer wall.
The technical scheme adopted for solving the technical problems is as follows:
A shared system of an overhanging support frame and a scaffold comprises an overhanging steel beam, a diagonal draw bar, a high-strength bolt, a double-lug pull ring and a steel pipe frame body;
The cantilever steel beam is screwed and fixed with the frame beam or the shear wall around the floor through a connecting steel plate and a high-strength bolt; the cantilever steel beam is welded with a lifting lug, one end of the diagonal draw bar is connected with the lifting lug on the cantilever steel beam through a cotter pin, the other end of the diagonal draw bar is connected with a double-lug pull ring through a cotter pin, and the double-lug pull ring is screwed with a frame beam or a shear wall around a floor;
The cantilever steel beam is arranged on the nth layer, the double-lug pull ring is arranged on the (n+1) th layer, and the diagonal draw bar is arranged between the cantilever steel beam on the nth layer and the double-lug pull ring on the (n+1) th layer; the steel pipe support body is erected on the overhanging steel beam, and the steel pipe support body is erected from the Nth layer to the (N+2) th layer and serves as a formwork support and an outer scaffold of the overhanging reinforced concrete structure of the (N+2) th layer.
Further, the lifting lug is a U-shaped lifting lug steel plate.
Further, the diagonal draw bar consists of an upper section draw bar, a lower section draw bar and a middle section pipe; the upper section pull rod and the lower section pull rod are steel pull rods, one end of the hook is provided with a hole, one end of the arch wire; the middle section pipe is a basket screw pipe, and inlets at two ends arch into positive and negative wires; the upper section pull rod and the lower section pull rod are screwed into the middle section pipe, and the middle section pipe has the adjusting and locking functions.
Further, the steel pipe frame body is a fastener type or socket type disc buckle type steel pipe frame with other types, and consists of a vertical rod, a sweeping rod, a cross rod, an inclined strut, a scissor strut, a wall connecting piece, a scaffold board, a skirting board, a safety net and the like. The steel pipe frame body is not only a formwork support of a reinforced concrete structure, but also an outer scaffold.
Further, in order to ensure safety, a triangular support steel plate is welded at the joint of the cantilever steel beam and the connecting steel plate, so that firmness is enhanced.
Further, in order to ensure safety, a movable locating pin with the length of 100-150 mm and the outer diameter of 32mm is arranged at the vertical rod position on the upper surface of the overhanging steel beam according to the vertical rod positioning of the steel pipe frame body on the overhanging steel beam, and is used as a steel pipe sleeving point, the vertical rod is sleeved outside the steel pipe sleeve, and the vertical rod is prevented from sliding.
Compared with the prior art, the utility model has the advantages that:
1. According to the utility model, the overhanging steel beam arranged on the side surface of the frame beam or the shear wall replaces the overhanging steel beam arranged on the floor slab, so that the length of the overhanging steel beam is reduced, the material consumption is saved, and the material cost is reduced;
2. The diagonal draw bar replaces a diagonal draw wire rope, so that the loss of the wire rope is reduced, and the turnover frequency is far greater than that of the diagonal draw wire rope;
3. According to the utility model, the overhanging steel beam arranged on the side surface of the frame beam or the shear wall replaces the overhanging steel beam arranged on the floor slab, and the indoor non-profile steel beam does not interfere with the subsequent construction of various construction processes;
4. According to the utility model, the cantilever steel beam does not need to pass through the wall body, a cave penetrating through the cantilever steel beam is not required to be reserved on the wall body, the later repair and maintenance are reduced, and the leakage risk of the outer wall is reduced.
Drawings
FIG. 1 is an overall schematic of an embodiment of the present utility model;
FIG. 2 is a schematic view of a cantilever steel beam;
FIG. 3 is a schematic view of a diagonal draw bar;
Reference numerals illustrate: 1. overhanging the steel beam; 2. a diagonal draw bar; 3. a high-strength bolt; 4. a binaural pull ring; 5. a steel pipe rack body; 11. connecting steel plates; 12. triangular support steel plates; 13. u-shaped lifting lug steel plates; 14. a cotter pin; 21. an upper section pull rod; 22. a lower section pull rod; 23. a middle section pipe; 31. and embedding the sleeve.
Detailed Description
The utility model is further described below with reference to the drawings and examples, which are not intended to limit the scope of the utility model.
Referring to fig. 1 to 3, a shared system of an overhanging support frame and a scaffold comprises an overhanging steel beam 1, a diagonal draw bar 2, a high-strength bolt 3, a double-lug pull ring 4 and a steel pipe frame body 5;
The cantilever steel beam 1 is I-shaped steel, a connecting steel plate 11 is welded at the root of the cantilever steel beam 1, and the cantilever steel beam 1 is screwed with a frame beam or a shear wall around a floor through the connecting steel plate 11 and the high-strength bolts 3; one end of the diagonal draw bar 2 is connected with the U-shaped lifting lug steel plates 13 on the cantilever steel beam 1 through cotter pins 14, the other end of the diagonal draw bar is connected with the double-lug pull ring 4 through cotter pins, and the double-lug pull ring 4 is screwed with a frame beam or a shear wall around a floor;
The cantilever steel beam 1 is arranged on the nth layer, the double-lug pull ring 4 is arranged on the (n+1) th layer, and the diagonal draw bar 2 is arranged between the cantilever steel beam 1 on the nth layer and the double-lug pull ring 4 on the (n+1) th layer; the steel pipe frame body 5 is erected on the overhanging steel beam 1, the steel pipe frame body 5 is erected from the Nth layer to the (N+2) th layer, and the steel pipe frame body serves as a supporting frame and an outer scaffold of the overhanging reinforced concrete structure of the (N+2) th layer.
The diagonal draw bar 2 consists of an upper section draw bar 21, a lower section draw bar 22 and a middle section pipe 23, wherein the upper section draw bar 21 and the lower section draw bar 22 are steel draw bars, one end of each of the steel draw bars is hooked with a hole, and the other end of each of the steel draw bars is arched; the middle section pipe 23 is a basket screw pipe, and inlets at two ends arch into positive and negative wires; the upper section pull rod 21 and the lower section pull rod 22 are screwed into the middle section pipe 23, and the middle section pipe 23 has the adjusting and locking functions.
The steel pipe frame body 5 is a fastener type or socket type disc buckle type steel pipe frame of other types, and consists of a vertical rod, a floor sweeping rod, a cross rod, an inclined strut, a scissor strut, a wall connecting piece, a scaffold board, a skirting board, a safety net and the like. The steel pipe frame body 5 is not only a formwork support of a reinforced concrete structure, but also an outer scaffold.
In order to further ensure safety, a triangular support steel plate 12 is welded at the joint of the cantilever steel beam 1 and the connecting steel plate 11, so that firmness is enhanced.
In order to further ensure safety, a movable locating pin with the length of 100-150 mm and the outer diameter of 32mm is arranged at the vertical rod position on the upper surface of the cantilever steel beam 1 according to the vertical rod positioning of the steel pipe frame body 5 on the cantilever steel beam 1, and is used as a steel pipe sleeving point, and the vertical rod is sleeved outside the movable locating pin to prevent the vertical rod from sliding.
The construction method comprises the following steps:
After the frame beams or the structural steel bars of the shear wall at the periphery of the Nth floor are bound, before concrete is poured, a horizontal line is sprung from the place with the elevation of the floor being minus 0.2m, and the position of the plastic embedded sleeve 31 is rechecked by comparing with the layout of the overhanging steel beam 1. The square nut is arranged in the embedded sleeve 3, a hole is punched in the outer side template, the embedded sleeve 31 is fixed on the outer side template by the fixing screw, and the butterfly nut and the fixing screw are used for tightening, so that the embedded sleeve 31 is prevented from loosening when concrete is poured. The embedded sleeve 31 is accurately positioned according to the spacing required by the construction scheme, and the position deviation of the embedded sleeve is controlled.
When the Nth floor concrete is poured, the vibrating rod is prevented from vibrating on the embedded sleeve 31 as much as possible, and the sleeve is ensured not to run or deform. And (3) tracking and checking by special persons in the pouring process, and timely recovering the run-out and deformed embedded sleeve 31.
After the strength of the Nth floor concrete reaches 5MPa, dismantling the frame beams around the floor or the outer side templates of the shear wall, taking out the fixing screw rods, installing the double-head high-strength bolts 3, and determining whether the high-strength bolts 3 are firmly connected with square nuts in the embedded sleeve 31 by observing the exposed length of the high-strength bolts 3.
And after the strength of the concrete of the Nth floor is more than or equal to 15MPa, installing the cantilever steel beam 1. When the length of the cantilever steel beam 1 is less than or equal to 2m, two persons are cooperatively installed, one person lifts the cantilever steel beam 1 by shoulder, and the other person centers on the high-strength bolt 3 and adds a nut to screw down, the fastening is performed by 50% of initial screwing and 50% of re-screwing, and the final screwing is completed before the formwork support is erected. The I-steel is more than 2m or the cantilever steel beam 1 with the weight more than 50kg is lifted by adopting a tower crane, and is righted by one person and screwed by one person with a nut. The tightening torque must reach 45-60 N.m, after the layer of cantilever steel beam 1 is installed and adjusted in place (angle is adjusted in place and locked, the gap between the cantilever steel beam and the contact surface of concrete is filled by steel sheets), the final tightening is started; the final tightening torque must reach 117 N.m, and the screw exposes 3cm of screw teeth. After all bolts are screwed up and checked without errors, the cantilever steel beam 1 is installed.
After the cantilever steel beam 1 is installed, a steel pipe frame body 5 to an n+1th floor is erected on the cantilever steel beam 1. And (3) installing the double lug pull ring 4 of the (n+1) th layer according to the installation flow of the (N) th layer high-strength bolt 3, and screwing the double lug pull ring 4 and the square nut in the (n+1) th layer embedded sleeve 31. And installing the diagonal draw bar 2 when the strength of the concrete on the floor surface of the (n+1) th floor is more than or equal to 20 Mpa. The diagonal draw bar 2 is provided in a factory according to the design length, if a little error exists, the upper section draw bar 21 and the lower section draw bar 22 can be screwed in (or out) at the same time on site, so that the diagonal draw bar 2 has the proper length. The upper and lower shaft pins are inserted, the middle joint pipe 23 is screwed clockwise, and the upper and lower section pull rods are screwed into the middle joint pipe 23 simultaneously, so that the length of the diagonal draw rod 2 is shortened, and the diagonal draw rod 2 has a stress function. After the diagonal draw bar 2 is assembled, the diagonal draw bar 2 is preferably forced to shake and not swing, so that the diagonal draw bar 2 is stressed and unloaded. The tightening torque must reach 20 N.m, the diagonal tension rod 2 is not too tight, and the cantilever steel beam 1 is pulled up to cause instability.
When the length of the cantilever steel beam 1 is less than 1.8m, only one diagonal draw bar 2 can be arranged; when the length of the cantilever steel beam 1 is more than or equal to 1.8m, two diagonal braces are arranged.
After the diagonal draw bar 2 is assembled, the steel pipe frame body 5 is continuously erected to the n+2 layer and serves as a formwork support and an outer scaffold of the overhanging reinforced concrete structure of the n+2 layer. In order to ensure the stability of the support frame, the steel pipe frame body 5 is connected with the inner full-hall support frame into a whole. The steel pipe frame body 5 is provided with diagonal braces, scissors braces, wall connecting pieces, scaffold boards, skirting boards, safety nets and the like according to the requirements of the standard and the construction scheme, so that the construction safety is ensured.
And pouring overhanging structural concrete of the (N+2) th floor after the strength of the concrete of the (N) th floor reaches 100%.
While the application has been described in terms of preferred embodiments, it is to be understood that the application is not limited to the disclosed embodiments, but is not limited to, any person skilled in the art, using the disclosure of the present application, may make some changes or modifications equivalent to the equivalent embodiments without departing from the scope of the present application, and all such changes or modifications are within the scope of the present application.
Claims (6)
1. The utility model provides a support frame and scaffold frame sharing system encorbelments which characterized in that: comprises a cantilever steel beam, a diagonal draw bar, a high-strength bolt binaural pull ring and steel tube frame;
The cantilever steel beam is screwed and fixed with the frame beam or the shear wall around the floor through a connecting steel plate and a high-strength bolt; the cantilever steel beam is welded with a lifting lug, one end of the diagonal draw bar is connected with the lifting lug on the cantilever steel beam through a cotter pin, the other end of the diagonal draw bar is connected with a double-lug pull ring through a cotter pin, and the double-lug pull ring is screwed with a frame beam or a shear wall around a floor;
The cantilever steel beam is arranged on the nth layer, the double-lug pull ring is arranged on the (n+1) th layer, and the diagonal draw bar is arranged between the cantilever steel beam on the nth layer and the double-lug pull ring on the (n+1) th layer; the steel pipe support body is erected on the overhanging steel beam, and the steel pipe support body is erected from the Nth layer to the (N+2) th layer and serves as a formwork support and an outer scaffold of the overhanging reinforced concrete structure of the (N+2) th layer.
2. The cantilever support and scaffold sharing system according to claim 1, wherein: the lifting lug is a U-shaped lifting lug steel plate.
3. The cantilever support and scaffold sharing system according to claim 1 or 2, wherein: the diagonal draw bar consists of an upper section draw bar, a lower section draw bar and a middle section pipe; the upper section pull rod and the lower section pull rod are steel pull rods, one end of the hook is provided with a hole, one end of the arch wire; the middle section pipe is a basket screw pipe, and inlets at two ends arch into positive and negative wires; the upper section pull rod and the lower section pull rod are screwed into the middle section pipe, and the middle section pipe has the adjusting and locking functions.
4. The cantilever support and scaffold sharing system according to claim 1 or 2, wherein: the steel pipe frame body is a steel pipe frame with a fastener type or a socket type disc fastener type.
5. The cantilever support and scaffold sharing system according to claim 1 or 2, wherein: and a triangular support steel plate is welded at the joint of the cantilever steel beam and the connecting steel plate.
6. The cantilever support and scaffold sharing system according to claim 1 or 2, wherein: according to the vertical rod positioning of the steel pipe frame body on the overhanging steel beam, a movable positioning pin with the length of 100-150 mm and the outer diameter of 32mm is arranged at the vertical rod position on the upper surface of the overhanging steel beam and is used as a steel pipe sleeving point, and the vertical rod is sleeved outside the steel pipe sleeving point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420042546.2U CN221546304U (en) | 2024-01-09 | 2024-01-09 | Cantilever support frame and scaffold sharing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420042546.2U CN221546304U (en) | 2024-01-09 | 2024-01-09 | Cantilever support frame and scaffold sharing system |
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| CN221546304U true CN221546304U (en) | 2024-08-16 |
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| CN202420042546.2U Active CN221546304U (en) | 2024-01-09 | 2024-01-09 | Cantilever support frame and scaffold sharing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118997441A (en) * | 2024-09-06 | 2024-11-22 | 上海建工一建集团有限公司 | High-altitude large cantilever reinforced concrete structure formwork scaffold structure and construction method thereof |
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2024
- 2024-01-09 CN CN202420042546.2U patent/CN221546304U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118997441A (en) * | 2024-09-06 | 2024-11-22 | 上海建工一建集团有限公司 | High-altitude large cantilever reinforced concrete structure formwork scaffold structure and construction method thereof |
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