CN117722007A - A support system and construction method for integral pouring formwork for super high-rise cantilevered balconies - Google Patents
A support system and construction method for integral pouring formwork for super high-rise cantilevered balconies Download PDFInfo
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- CN117722007A CN117722007A CN202410120884.8A CN202410120884A CN117722007A CN 117722007 A CN117722007 A CN 117722007A CN 202410120884 A CN202410120884 A CN 202410120884A CN 117722007 A CN117722007 A CN 117722007A
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- overhanging balcony
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Abstract
The invention relates to a support system and a construction method of an integral pouring template of an ultra-high-rise overhanging balcony, wherein the integral pouring template of the overhanging balcony comprises a plurality of layers of overhanging balcony extending out of a frame beam and a back sill arranged at the edge of the overhanging balcony; a supporting scaffold and a template supporting device are arranged between the adjacent upper layer and lower layer overhanging balcony, and the template supporting device is fixedly arranged at the top of the supporting scaffold and supports the overhanging balcony positioned at the upper layer; the bottom of the overhanging balcony positioned at the bottommost layer is provided with a supporting tripod; according to the cantilever balcony casting device, the support scaffold and the template support device are arranged, so that the cantilever balcony is cast and formed on the template support device at one time, a U-shaped bolt is not required to be used for fixing the cantilever steel beam, an outer scaffold is not required to be installed, potential safety hazards are reduced, and the cantilever balcony is cast and formed at one time; the support scaffold is convenient and safe to disassemble and assemble and can be reused; the modularized construction can greatly improve the construction efficiency and the construction quality.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a support system and a construction method of an integral pouring template of an ultra-high-rise overhanging balcony.
Background
In building construction, at present, for high-rise or super high-rise overhanging balcony construction, a overhanging section steel beam is usually installed below an overhanging part, a supporting scaffold and an outer scaffold are erected on the overhanging section steel beam, and after the erection is completed, an overhanging balcony template is paved for pouring construction.
The construction method has some problems: the cantilever steel beam needs to be installed in construction, a large number of U-shaped bolts are needed to be used for fixing the cantilever steel beam on a floor plate, and floor water leakage hidden danger is easy to generate in the later period; the outer scaffold is arranged, the supporting height is higher in the construction of the high-rise or super-high-rise overhanging balcony, the construction process has great safety risk, the inverted ridge at the edge of the overhanging balcony is required to be poured for the second time in order to facilitate workers to enter the building from the outer scaffold, and the construction process is more; the overhanging type steel beam and the supporting scaffold are inconvenient to detach and replace, so that the engineering construction period is not facilitated to be shortened, and the measure cost is high.
Disclosure of Invention
In order to solve the problems in the background technology, the invention provides a support system and a construction method of an integral pouring template of an ultra-high-rise overhanging balcony.
The invention provides a support system and a construction method for an overall pouring template of an ultra-high-rise overhanging balcony, which adopts the following technical scheme:
the support system of the integral pouring template of the super high-rise overhanging balcony comprises a plurality of layers of overhanging balcony extending out of a frame beam and a back sill arranged at the edge of the overhanging balcony; a supporting scaffold and a template supporting device are arranged between the adjacent upper layer and lower layer overhanging balcony, and the template supporting device is fixedly arranged at the top of the supporting scaffold and supports the overhanging balcony positioned at the upper layer; the bottom of the overhanging balcony at the bottommost layer is provided with a supporting tripod, and the supporting tripod is connected with the outer side of the frame beam through an embedded part.
Further, the formwork support device comprises a trabecula and an outer support, wherein the trabecula is arranged at the bottom of the overhanging balcony at intervals, and the outer end of the trabecula extends out of the inverted ridge and is fixedly connected with the outer support; the outside supports include the steel sheet of demountable installation in the anti-bank outside, the steel sheet outside interval is connected with many sloping, interval between the sloping is equal with the spacing distance between the trabecula, trabecula corresponds and welded connection with the sloping.
Further, the girder is erected at the top end of the supporting scaffold, the erecting direction of the girder is perpendicular to that of the trabecula, the trabecula is welded and connected to the top of the girder, and a single girder and a single trabecula form a crisscross structure, so that the bearing capacity is ensured.
Further, support scaffold one side is connected with the bracing and connects pre-buried steel pipe through the bracing, pre-buried steel pipe buries and establishes on frame roof beam inboard floor board, and the bracing prevents that support scaffold from empting, effectively increases the rigidity and the anti-capsizing ability of support scaffold.
The construction method of the support system of the integral pouring template of the super high-rise overhanging balcony is characterized by comprising the following steps of:
step one: determining a construction thought according to the construction drawing and the site situation;
step two: simulation analysis and stress checking calculation are carried out on the overhanging balcony, the supporting scaffold, the supporting tripod, the trabecula and the outer side support, so that safety is determined;
step three: installing a supporting tripod below the installation position of the n-th layer overhanging balcony, and installing a template supporting device at the top of the supporting tripod, wherein n is the number of floors, and n=1, 2 and 3 … …;
step four: binding overhanging balcony templates and reinforcing steel bars at the installation position of the nth layer overhanging balcony, pouring concrete, and pouring the nth layer overhanging balcony for one-step molding;
step five: after the n-th layer overhanging balcony is maintained for 7 days, erecting a supporting scaffold and a template supporting device for supporting the n+1-th layer overhanging balcony on the n-th layer overhanging balcony;
step six: pouring construction of the n+1 layer overhanging balcony is carried out, and after the n+1 layer overhanging balcony is maintained for 7 days, construction of the n+2 layer overhanging balcony and the n+3 layer overhanging balcony is carried out according to the construction method of the n+1 layer; when the n+3 layer overhanging balcony is cured for 7 days, the supporting tripod of the n layer overhanging balcony with the strength reaching the construction requirement can be dismantled; when the n+4 layer overhanging balcony is maintained for 7 days, the support scaffold with the strength reaching the construction requirement of the n+1 layer overhanging balcony can be dismantled, so that the support scaffold at the bottommost layer can be dismantled for each layer of construction, and the support scaffold is convenient and safe to disassemble and can be reused;
in summary, the invention has the following beneficial technical effects: according to the invention, the supporting scaffold and the template supporting device are arranged, so that the overhanging balcony is formed by casting on the template supporting device at one time, the overhanging type steel beam is not required to be fixed by the U-shaped bolts, and the hidden trouble of water leakage of the floor slab caused by more U-shaped bolts is improved; compared with the traditional high-rise or super-high-rise overhanging balcony construction mode, an outer scaffold is not required to be installed, potential safety hazards are reduced, and the overhanging balcony is cast and molded once; the support scaffold is convenient and safe to disassemble and assemble and can be reused; the modularized construction can greatly improve the construction efficiency and the construction quality, obviously reduce the construction period, quicken the construction progress and has good economic and social benefits.
Drawings
FIG. 1 is a schematic view of an installation structure of an overhanging balcony at a bottommost layer according to an embodiment of the present invention;
fig. 2 is a schematic view of an installation structure of a multi-layer cantilever balcony according to an embodiment of the present invention.
Reference numerals illustrate: 1. a frame beam; 2. overhanging the balcony; 3. a reverse bank; 4. supporting a scaffold; 5. a template support device; 6. supporting a tripod; 7. an embedded part; 8. trabeculae; 9. an outer support; 10. a steel plate; 11. a sloping beam; 12. a main beam; 13. diagonal bracing; 14. embedding a steel pipe; 15. an nth layer overhanging balcony; 16. the n+1th layer overhangs the balcony; 17. the n+2th layer overhangs the balcony; 18. the n+3 layer overhanging balcony; 19. the n+4 layer overhanging balcony; 20. floor boards.
Detailed Description
The invention is described in further detail below in connection with fig. 1-2.
The embodiment of the invention discloses a support system and a construction method of an overall pouring template of an ultra-high-rise overhanging balcony.
Referring to fig. 1 and 2, a support system of an overall casting template of a super high-rise overhanging balcony comprises a multi-layer overhanging balcony 2 extending out of a frame beam 1 and a reverse ridge 3 arranged at the edge of the overhanging balcony 2, wherein the reverse ridge 3 is a convex structure arranged at the edge of the overhanging balcony 2, prevents water from flowing into a room and falling, and is cast and molded simultaneously with the overhanging balcony 2; a supporting scaffold 4 and a template supporting device 5 are arranged between the adjacent upper layer and lower layer overhanging balcony 2, and the template supporting device 5 is fixedly arranged at the top of the supporting scaffold 4 and supports the overhanging balcony 2 positioned at the upper layer; the bottom of the cantilever balcony 2 positioned at the bottommost layer is provided with a supporting tripod 6, and the supporting tripod 6 is connected with the outer side of the frame beam 1 through an embedded part 7.
When constructing the balcony 2 of encorbelmenting of bottommost, support tripod 6 sets up in template strutting arrangement 5 bottom, and support tripod 6 and template strutting arrangement 5 are as the support of balcony 2 of encorbelmenting, when constructing the balcony 2 of encorbelmenting of bottommost upwards, support scaffold 4 replace support tripod 6, set up in template strutting arrangement 5 bottom, support scaffold 4 and template strutting arrangement 5 are as the support of balcony 2 of encorbelmenting to reuse in subsequent floor, support scaffold 4 easy dismounting safety.
Referring to fig. 1 and 2, the formwork support device 5 comprises a trabecula 8 and an outer support 9, wherein the trabecula 8 is arranged at the bottom of the overhanging balcony 2 at intervals, and the outer end of the trabecula 8 extends out of the inverted ridge 3 and is fixedly connected with the outer support 9; the outside support 9 includes the steel sheet 10 of demountable installation in the anti-bank 3 outside, and the steel sheet 10 outside interval is connected with many sloping 11, and interval between the sloping 11 is equal with the interval distance between the trabecula 8, and trabecula 8 corresponds and welded connection with the sloping 11.
Referring to fig. 1 and 2, the top end of the supporting scaffold 4 is provided with a main beam 12, the erecting direction of the main beam 12 is vertical to the trabecula 8, the trabecula 8 is welded and connected to the top of the main beam 12, a cross structure is formed between a single main beam 12 and a single trabecula 8 to ensure the bearing capacity, the main beam 12 adopts H-shaped steel, and the bending resistance of the main beam 12 is ensured while the structural weight is reduced.
Referring to fig. 1 and 2, a diagonal brace 13 is connected to one side of the support scaffold 4, and an embedded steel pipe 14 is connected to the diagonal brace 13, and the embedded steel pipe 14 is embedded in the floor slab 20 on the inner side of the frame beam 1.
Referring to fig. 1 and 2, a construction method of a support system of an overall casting template of a super high-rise overhanging balcony comprises the following steps:
step one: determining a construction thought according to the construction drawing and the site situation;
step two: simulation analysis and stress checking calculation are carried out on the overhanging balcony 2, the supporting scaffold 4, the supporting tripod 6, the trabecula 8 and the outer side support 9, so that safety is determined; the finite element analysis software and the simulation software are adopted to carry out simulation analysis and stress checking calculation of the construction process, and the construction process is carried out under the condition that the simulation analysis and the stress checking calculation are qualified, so that the safety is ensured.
Step three: a supporting tripod 6 is arranged below the installation position of the n-th layer cantilever balcony 15, and a template supporting device 5 is arranged at the top of the supporting tripod 6, wherein n is the number of floors, and n=1, 2 and 3 … …;
step four: binding overhanging balcony templates and reinforcing steel bars at the installation positions of the nth layer overhanging balcony 15, pouring concrete, and pouring the nth layer overhanging balcony 15 for one-step molding;
in the prior art, in order to facilitate workers to enter a building from an outer scaffold, secondary pouring is required to be carried out on the inverted ridge 3 at the edge of the overhanging balcony 2, and more construction procedures are needed;
step five: after the n-th layer overhanging balcony 15 is maintained for 7 days, a supporting scaffold 4 and a template supporting device 5 for supporting the n+1-th layer overhanging balcony 16 are erected on the n-th layer overhanging balcony 15;
the concrete curing time of the overhanging balcony 15 is determined by combining the construction environment and the construction temperature, and the concrete strength is ensured to meet the construction requirement for ensuring the curing effect and the curing time not less than 7 days.
Step six: pouring construction of the n+1 layer overhanging balcony 16 is carried out, and after the n+1 layer overhanging balcony 16 is maintained for 7 days, construction of the n+2 layer overhanging balcony 17 and the n+3 layer overhanging balcony 18 is carried out according to a construction method of the n+1 layer overhanging balcony 16; when the n+3 layer overhanging balcony 18 is maintained for 7 days, the supporting tripod 6 of the n layer overhanging balcony 15 with the strength reaching the construction requirement can be dismantled; when the n+4 layer overhanging balcony 19 is maintained for 7 days, the detachable strength reaches the construction requirement of the support scaffold 4 of the n+1 layer overhanging balcony 16, and so on, and each layer of construction can be detached to form the support scaffold 4 of the bottommost layer.
The implementation principle of the support system of the integral casting template of the overhung balcony at the super high layer provided by the embodiment of the invention is as follows: the invention realizes pouring construction of the super high-rise overhanging balcony 2, when the overhanging balcony 2 at the bottommost layer is constructed, the supporting tripod 6 is arranged at the bottom of the formwork supporting device 5, the supporting tripod 6 and the formwork supporting device 5 are used as supports of the overhanging balcony 2, when the overhanging balcony 2 at the bottommost layer is constructed, the supporting scaffold 4 replaces the supporting tripod 6 and is erected at the bottom of the formwork supporting device 5, the supporting scaffold 4 and the formwork supporting device 5 are used as supports of the overhanging balcony 2, the overhanging balcony 2 is poured with concrete on the formwork supporting device 5 for one-step molding, and the supporting scaffold 4 is disassembled and reused after the concrete strength reaches the construction requirement.
The above embodiments are not intended to limit the scope of the present invention, so: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (5)
1. The utility model provides a support system of super high-rise balcony integral casting template that encorbelments which characterized in that: the multi-layer cantilever balcony comprises a multi-layer cantilever balcony (2) extending out of a frame beam (1) and a counter sill (3) arranged at the edge of the cantilever balcony (2); a supporting scaffold (4) and a template supporting device (5) are arranged between the adjacent upper layer and lower layer overhanging balcony (2), and the template supporting device (5) is fixedly arranged at the top of the supporting scaffold (4) and supports the overhanging balcony (2) positioned at the upper layer; the bottom of the cantilever balcony (2) positioned at the bottommost layer is provided with a supporting tripod (6), and the supporting tripod (6) is connected with the outer side of the frame beam (1) through an embedded part (7).
2. The support system of the integral casting template for the super high-rise overhanging balcony of claim 1, which is characterized in that: the template supporting device (5) comprises trabeculae (8) and an outer side support (9), wherein the trabeculae (8) are arranged at the bottom of the overhanging balcony (2) at intervals, and the outer ends of the trabeculae (8) extend out of the inverted ridge (3) and are fixedly connected with the outer side support (9); the outside support (9) is including demountable installation in steel sheet (10) in the anti-bank (3) outside, steel sheet (10) outside interval connection has many sloping (11), interval between sloping (11) is equivalent with the interval distance between trabecula (8), trabecula (8) correspond and welded connection with sloping (11).
3. The support system of the integral casting template for the super high-rise overhanging balcony of claim 2, which is characterized in that: the top end of the supporting scaffold (4) is provided with a main beam (12), the erecting direction of the main beam (12) is perpendicular to that of the trabecula (8), and the trabecula (8) is welded and connected to the top of the main beam (12).
4. The support system of the integral casting template for the super high-rise overhanging balcony of claim 1, which is characterized in that: the scaffold is characterized in that one side of the supporting scaffold (4) is connected with an inclined strut (13) and is connected with an embedded steel pipe (14) through the inclined strut (13), and the embedded steel pipe (14) is embedded on a floor plate (20) on the inner side of the frame beam (1).
5. A construction method of the support system of the integral casting template of the super high-rise overhanging balcony according to claim 3, which is characterized by comprising the following steps:
step one: determining a construction thought according to the construction drawing and the site situation;
step two: simulation analysis and stress checking calculation are carried out on the overhanging balcony (2), the supporting scaffold (4), the supporting tripod (6), the trabecula (8) and the outer side support (9), so that safety is determined;
step three: a supporting tripod (6) is arranged below the installation position of an n-th layer overhanging balcony (15), a template supporting device (5) is arranged at the top of the supporting tripod (6), wherein n is the number of floors, and n=1, 2 and 3 … …;
step four: binding overhanging balcony templates and reinforcing steel bars at the installation positions of the nth layer overhanging balcony (15) and pouring concrete, and pouring the nth layer overhanging balcony (15) into one-step molding;
step five: after the n-th layer overhanging balcony (15) is cured for 7 days, a supporting scaffold (4) for supporting the n+1-th layer overhanging balcony (16) and a template supporting device (5) are erected on the n-th layer overhanging balcony;
step six: pouring construction of the n+1 layer overhanging balcony (16) is carried out, and after the n+1 layer overhanging balcony (16) is maintained for 7 days, construction of the n+2 layer overhanging balcony (17) and the n+3 layer overhanging balcony (18) is carried out according to a construction method of the n+1 layer overhanging balcony (16); when the n+3 layer overhanging balcony (18) is cured for 7 days, the supporting tripod (6) of the n layer overhanging balcony (15) with the strength reaching the construction requirement can be dismantled; when the n+4 layer overhanging balcony (19) is maintained for 7 days, the detachable strength reaches the support scaffold (4) of the n+1 layer overhanging balcony (16) required by construction, and the support scaffold (4) of the bottommost layer can be detached from each layer of construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410120884.8A CN117722007A (en) | 2024-01-29 | 2024-01-29 | A support system and construction method for integral pouring formwork for super high-rise cantilevered balconies |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410120884.8A CN117722007A (en) | 2024-01-29 | 2024-01-29 | A support system and construction method for integral pouring formwork for super high-rise cantilevered balconies |
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| CN117722007A true CN117722007A (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410120884.8A Pending CN117722007A (en) | 2024-01-29 | 2024-01-29 | A support system and construction method for integral pouring formwork for super high-rise cantilevered balconies |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121675522A (en) * | 2026-02-12 | 2026-03-17 | 二十二冶集团(天津)建筑科技有限公司 | Construction method of heat-preservation integrated overhanging balcony board |
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| JPS6436865A (en) * | 1987-07-31 | 1989-02-07 | Mitsui Constr | Balcony slab execution device |
| JPH09296610A (en) * | 1996-04-30 | 1997-11-18 | Kumagai Gumi Co Ltd | Outside curing unit |
| CN207377125U (en) * | 2017-11-05 | 2018-05-18 | 李英章 | It is a kind of that flexible balcony falsework system is adjusted |
| CN210767840U (en) * | 2019-08-23 | 2020-06-16 | 云南科保模架有限责任公司 | Building aluminum alloy template balcony double-line strip reinforcing member |
| CN111305590A (en) * | 2020-03-06 | 2020-06-19 | 河北省建筑科学研究院有限公司 | Assembly type low-energy-consumption transformation structure and rapid transformation method for existing building balcony |
| CN115717453A (en) * | 2022-10-28 | 2023-02-28 | 中铁广州工程局集团有限公司 | A continuous construction method for multi-layer cantilever beams |
-
2024
- 2024-01-29 CN CN202410120884.8A patent/CN117722007A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6436865A (en) * | 1987-07-31 | 1989-02-07 | Mitsui Constr | Balcony slab execution device |
| JPH09296610A (en) * | 1996-04-30 | 1997-11-18 | Kumagai Gumi Co Ltd | Outside curing unit |
| CN207377125U (en) * | 2017-11-05 | 2018-05-18 | 李英章 | It is a kind of that flexible balcony falsework system is adjusted |
| CN210767840U (en) * | 2019-08-23 | 2020-06-16 | 云南科保模架有限责任公司 | Building aluminum alloy template balcony double-line strip reinforcing member |
| CN111305590A (en) * | 2020-03-06 | 2020-06-19 | 河北省建筑科学研究院有限公司 | Assembly type low-energy-consumption transformation structure and rapid transformation method for existing building balcony |
| CN115717453A (en) * | 2022-10-28 | 2023-02-28 | 中铁广州工程局集团有限公司 | A continuous construction method for multi-layer cantilever beams |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121675522A (en) * | 2026-02-12 | 2026-03-17 | 二十二冶集团(天津)建筑科技有限公司 | Construction method of heat-preservation integrated overhanging balcony board |
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