CN222745586U - Supporting cantilever steel platform for construction of high-altitude large cantilever structure of building outer eave - Google Patents
Supporting cantilever steel platform for construction of high-altitude large cantilever structure of building outer eave Download PDFInfo
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- CN222745586U CN222745586U CN202420676706.9U CN202420676706U CN222745586U CN 222745586 U CN222745586 U CN 222745586U CN 202420676706 U CN202420676706 U CN 202420676706U CN 222745586 U CN222745586 U CN 222745586U
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Abstract
The utility model discloses a supporting cantilever steel platform for construction of a high-altitude large cantilever structure of an outer eave of a building, which comprises a plurality of cantilever steel girders arranged at the top of an upper reinforced concrete beam through ground anchor round steel assemblies, wherein a first inclined support and a second inclined support are arranged at the bottom of a cantilever end of each cantilever steel girder extending out of the upper reinforced concrete beam through connecting assemblies, the bottom of the first inclined support and the bottom of the second inclined support are arranged at the top of a middle reinforced concrete beam through first embedded assemblies, a plurality of connecting beams are arranged at the top of the cantilever end of each cantilever steel girder extending out of the upper reinforced concrete beam through U-shaped ring assemblies, a plurality of steel pipe inserting positioning ribs are welded on the connecting beams, and the supporting cantilever steel platform also comprises a lower inclined steel column arranged at the bottom of the middle reinforced concrete beam through second embedded assemblies, wherein the lower end of each lower inclined steel column is arranged on the outer wall of a side wall corresponding to the upper surface of the lower reinforced concrete beam through third embedded assemblies. The support system is arranged in a double-layer mode, and is good in support strength, rigidity and stability and high in safety.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a supporting cantilever steel platform for building outer eave high-altitude cantilever structure construction.
Background
Along with the development of high-rise buildings in China, various special-shaped structures are increasingly arranged in urban building groups, particularly, an ultra-long span and large-section high-altitude overhanging structure, and due to the lack of relevant construction experience and construction specifications, a great test is put forward for the traditional construction method.
The Chinese patent application with the publication number of CN110700543A relates to a steel truss diagonal bracing system structure of a profile steel cantilever and a construction method thereof, wherein a small-specification truss diagonal bracing with light weight is adopted to replace a traditional diagonal bracing with large quantity, so that the risk of assembly and disassembly is greatly reduced, but the defect that the strength of the cantilever structural bracing is insufficient possibly to meet the use requirement exists, and a main beam and the diagonal beam are integrally welded and are integrally hoisted, so that the assembly and the disassembly are inconvenient.
Disclosure of utility model
The utility model aims to solve the defects of the prior art and provides a supporting cantilever steel platform for construction of a high-altitude large cantilever structure of an outer eave of a building.
The utility model adopts the following technical scheme to realize the aim:
The supporting cantilever steel platform comprises a plurality of cantilever steel girders which are arranged at the top of an upper reinforced concrete girder through ground anchor round steel components, wherein a first inclined support and a second inclined support are arranged at the bottom of a cantilever end of each cantilever steel girder extending out of the upper reinforced concrete girder through a connecting component, the bottoms of the first inclined support and the second inclined support are arranged at the top of a middle reinforced concrete girder through a first embedded component, a 'I' -shaped reinforcing steel pipe component is arranged between the first inclined support and the second inclined support, a plurality of connecting girders are arranged at the top of the cantilever end of each cantilever steel girder extending out of the upper reinforced concrete girder through a U-shaped ring component, and a plurality of steel pipe inserting positioning ribs are welded on the connecting girders;
The lower inclined steel column is installed on the outer wall of the side wall corresponding to the upper surface of the lower reinforced concrete beam through a third embedded component.
The connecting assembly comprises a first connecting plate welded on the front side and the rear side of the bottom of the cantilever steel girder and a second connecting plate welded on the upper end of the outer wall of the first inclined support or the upper end of the outer wall of the second inclined support, a plurality of connecting holes are correspondingly formed in the first connecting plate and the second connecting plate, the first connecting plate and the second connecting plate are fixedly connected through bolts in the connecting holes, and a connecting stiffening rib is arranged between the bottom of the second connecting plate and the outer wall of the first inclined support or the outer wall of the second inclined support.
The ground anchor round steel assembly comprises round steel embedded in an upper reinforced concrete beam and angle steel arranged at the top of the overhanging type steel girder, and the upper end of the round steel penetrates out of the overhanging type steel girder and the angle steel and is locked through a first nut.
The first embedded assembly comprises a plurality of first embedded bars embedded in the top of the middle-layer reinforced concrete beam, a first steel plate is welded on the top of the first embedded bars, the bottoms of the first inclined support and the second inclined support are welded on the first steel plate, and first stiffening ribs are arranged on the first steel plate.
The zigzag reinforced steel pipe assembly comprises a first inclined steel pipe, a horizontal steel pipe and a second inclined steel pipe which are welded between the first inclined support and the second inclined support, wherein the first inclined steel pipe, the horizontal steel pipe and the second inclined steel pipe are arranged in a zigzag structure.
The U-shaped ring assembly comprises a clamping steel plate arranged at the top of the connecting beam, and a U-shaped ring sleeved outside the overhanging type steel main beam and the connecting beam, wherein two vertical rods of the U-shaped ring penetrate out of the clamping steel plate and are locked through a second nut.
The second embedded assembly comprises a plurality of second embedded bars embedded in the bottom of the middle-layer reinforced concrete beam, a second steel plate is welded at the bottom of the second embedded bars, and the upper ends of the lower-layer inclined steel columns are welded on the second steel plate.
The third embedded assembly comprises a plurality of third embedded bars embedded in the side wall, a third steel plate is welded on the outer side of the third embedded bars, and the lower end of the lower inclined steel column is welded on the third steel plate.
The cantilever type steel girder supporting system has the advantages that the supporting system is arranged in a double-layer mode, the supporting strength, the rigidity and the stability are good, the safety is high, materials of the supporting system can be recycled, the cantilever type steel girder supporting system is green, low-carbon and environment-friendly, the diagonal braces are connected with the cantilever type steel girder through bolts, the disassembly and the assembly are convenient, and the connection stability of the diagonal braces and the embedded steel plates is good.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an enlarged schematic view of FIG. 1A;
FIG. 3 is a schematic view of the structure of the connection assembly at the bottom of the overhanging type steel main beam;
FIG. 4 is a schematic view of the structure of the connecting assembly at the upper end of the first diagonal brace or the second diagonal brace;
FIG. 5 is a schematic structural view of a first pre-buried component;
FIG. 6 is a schematic structural view of a U-ring assembly;
FIG. 7 is a schematic view of the overhanging type steel main beam and the connecting beam connected by the U-shaped ring assembly;
FIG. 8 is a schematic structural view of a second pre-buried component;
FIG. 9 is a schematic structural view of a third pre-buried component;
The steel pipe reinforced concrete cable comprises a 1-overhanging type steel main beam, a 2-first inclined support, a 3-second inclined support, a 4-ground anchor round steel component, a 5-connecting component, a 6-first embedded component, a 7-zigzag reinforced steel pipe component, an 8-U-shaped ring component, a 9-connecting beam, a 10-steel pipe inserted positioning rib, a 11-lower inclined steel column, a 12-second embedded component, a 13-third embedded component, a 14-upper reinforced concrete beam, a 15-middle reinforced concrete beam, a 16-lower reinforced concrete beam, a 17-side wall, a 18-diagonal vertical column and a 19-inclined cable;
41-round steel, 42-angle steel and 43-first nut;
51-first connection plate, 52-second connection plate, 53-connection hole, 54-connection stiffening rib;
61-first embedded bars, 62-first steel plates and 63-first stiffening ribs;
71-a first inclined steel pipe, 72-a horizontal steel pipe, 73-a second inclined steel pipe;
81-clamping steel plate, 82-U-shaped ring, 83-second nut;
121-second embedded bars, 122-second steel plates;
131-third embedded bars, 132-third steel plates;
the embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
Detailed Description
The principles and features of the present utility model are described below with reference to the drawings, the illustrated embodiments are provided for illustration only and are not intended to limit the scope of the present utility model. The utility model is more particularly described by way of example in the following paragraphs with reference to the drawings. The advantages and features of the present utility model will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
The supporting cantilever steel platform for construction of the high-altitude large cantilever structure of the building outer eave comprises a plurality of cantilever steel girders 1 which are arranged at the top of an upper layer reinforced concrete beam 14 through ground anchor round steel assemblies 4, wherein each cantilever steel girder 1 extends out of the cantilever end bottom of the upper layer reinforced concrete beam 14 and is provided with a first inclined support 2 and a second inclined support 3 through a connecting assembly 5, the bottoms of the first inclined support 2 and the second inclined support 3 are arranged at the top of a middle layer reinforced concrete beam 15 through a first embedded assembly 6, a' zigzag reinforcing steel tube assembly 7 is arranged between the first inclined support 2 and the second inclined support 3, a plurality of connecting beams 9 are arranged at the cantilever end tops of the cantilever steel girders 1 extending out of the upper layer reinforced concrete beam 14 through U-shaped ring assemblies 8, a plurality of steel tube splicing locating ribs 10 are welded on the connecting beams 9, the lower layer inclined steel columns 11 are further arranged at the bottom of the reinforced concrete beam 15 through a second embedded assembly 12, the lower layer inclined steel columns 11 are arranged at the upper ends of the lower layer inclined steel columns 11 through third embedded assemblies 13 at the upper surfaces of the corresponding inclined steel beams 16, and the top of the vertical side walls 18 of the inclined steel columns are further arranged between the vertical side walls 18 of the upper layer reinforced concrete beam 14 and the vertical side walls of the upper layer reinforced concrete beam 1.
Processing and manufacturing:
Taking the construction of 3-5 axicon H-G axicon beam plate structure of engineering project (elevation 73.85 m) to be outwards protruded, the length of the outwards protruded area is 14.8m, the width is 3.3m, the cross section of the outwards protruded conversion beam is 1050X 2000mm, and the plate thickness is 150mm as an example:
The materials selected include 25a I-steel, 16# I-steel, 120X 8mm square steel pipe, 80X 3mm square steel pipe, 14mm thick steel plate, 12mm thick steel plate, high strength bolt with diameter of 16mm, U-shaped piece with diameter of 18mm, threaded steel bar with diameter of 20mm and threaded steel with diameter of 25 mm.
Through checking, the overhanging type steel girder 1 adopts 25a I-steel, the maximum overhanging length of the overhanging type steel girder 1 is 4m, the anchoring length of the overhanging type steel girder 1 on the upper reinforced concrete girder 14 is 5m at the maximum, three ground anchor round steel components 4 are distributed in an anchoring range for fixing the overhanging type steel girder 1, wherein two ground anchor round steel components 4 are arranged at the anchoring inner end of the overhanging type steel girder 1, the distance between one of the two ground anchor round steel components 4 and the anchoring inner end is 200mm, the distance between the two ground anchor round steel components 4 is 200mm, and the other ground anchor round steel component 4 is arranged at the anchoring outer end of the overhanging type steel girder 1 close to the overhanging end.
The ground anchor round steel assembly 4 comprises round steel 41 pre-buried in the upper reinforced concrete beam 14 and angle steel 42 arranged at the top of the overhanging type steel girder 1, and the upper end of the round steel 41 penetrates out of the overhanging type steel girder 1 and the angle steel 42 and is locked through a first nut 43. The round steel 41 has a size of
The distance between two adjacent overhanging type steel main beams 1 is 1200mm according to load calculation, a plurality of 16# I-steel connecting beams 9 are arranged on the overhanging type steel main beams 1, and the overhanging type steel main beams 1 and the connecting beams 9 are fixed by adopting U-shaped ring assemblies 8.
The U-shaped ring assembly 8 comprises a clamping steel plate 81 arranged at the top of the connecting beam 9 and a U-shaped ring 82 sleeved outside the overhanging type steel main beam 1 and the connecting beam 9, wherein two vertical rods of the U-shaped ring 82 penetrate out of the clamping steel plate 81 and are locked through a second nut 83, and the diameter of the U-shaped ring 82 is 18mm.
The steel pipe inserting positioning rib 10 is arranged on the connecting beam 9, and the steel pipe inserting positioning rib 10 adoptsThe screw steel with the height of 150mm is welded and fixed with the connecting beam 9 in the middle, so that the subsequent steel pipe frame steel pipe can be conveniently inserted.
Two inclined struts are arranged below the cantilever type steel main beam 1, the inclined struts adopt square steel pipes with the diameter of 120mm multiplied by 8mm, the inclined struts are respectively a first inclined strut 2 and a second inclined strut 3, and the square steel pipes with the diameter of 80mm multiplied by 3mm are welded between the first inclined strut 2 and the second inclined strut 3 so as to increase torsional strength of the inclined struts.
The included angle between the overhanging type steel girder 1 and the first inclined support 2 is 64.13 degrees, and the included angle between the overhanging type steel girder 1 and the second inclined support 3 is 47.04 degrees. The distance between the first inclined support 2 and the overhanging end part of the overhanging type steel main beam 1 is 2500mm, and the distance between the second inclined support 3 and the overhanging end part of the overhanging type steel main beam 1 is 600mm.
The zigzag reinforced steel pipe assembly 7 includes a first inclined steel pipe 71, a horizontal steel pipe 72, and a second inclined steel pipe 73 welded between the first inclined support 2 and the second inclined support 3, and the first inclined steel pipe 71, the horizontal steel pipe 72, and the second inclined steel pipe 73 are arranged in a zigzag structure.
The cantilever type steel girder 1 is connected with the first inclined support 2 and the second inclined support 3 through the connecting component 5, the connecting component 5 comprises a first connecting plate 51 welded on the front side and the rear side of the bottom of the cantilever type steel girder 1, and a second connecting plate 52 welded on the upper end of the outer wall of the first inclined support 2 or the upper end of the outer wall of the second inclined support 3, a plurality of connecting holes 53 are correspondingly formed in the first connecting plate 51 and the second connecting plate 52, the first connecting plate 51 and the second connecting plate 52 are fixedly connected through bolts in the connecting holes 53, and a connecting stiffening rib 54 is arranged between the bottom of the second connecting plate 52 and the outer wall of the first inclined support 2 or the outer wall of the second inclined support 3. The thickness of the first connecting plate 51 and the second connecting plate 52 is 14mm, and eight high-strength bolts of 16mm are used for connection and reinforcement.
The lower inclined steel column 11 adopts square steel pipes with the diameter of 80mm multiplied by 3mm.
The first embedded assembly 6 comprises a plurality of first embedded bars 61 embedded in the top of the middle-layer reinforced concrete beam 15, a first steel plate 62 is welded on the top of the first embedded bars 61, the bottoms of the first inclined support 2 and the second inclined support 3 are welded on the first steel plate 62, and a first stiffening rib 63 is arranged on the first steel plate 62.
The second embedded assembly 12 comprises a plurality of second embedded bars 121 embedded at the bottom of the middle-layer reinforced concrete beam 15, a second steel plate 122 is welded at the bottom of the second embedded bars 121, and the upper end of the lower-layer inclined steel column 11 is welded on the second steel plate 122.
The third embedded assembly 13 comprises a plurality of third embedded bars 131 embedded in the side wall 17, a third steel plate 132 is welded on the outer side of the third embedded bars 131, and the lower end of the lower inclined steel column 11 is welded on the third steel plate 132.
The pre-buried steel plates adopted by the first pre-buried component 6, the second pre-buried component 12 and the third pre-buried component 13 are Q235 steel plates with the thickness of 14mm, and the anchoring ends of the steel plates are as followsThe first steel plate 62 and the second steel plate 122 have a dimension of 400 x 400mm, the third steel plate 132 has a dimension of 200 x 700mm, and the first stiffener 63 is a 12mm thick steel plate.
The utility model is a supporting cantilever steel platform system which has simple operation, easy material obtaining, repeated use, good strength, rigidity and stability, and can ensure the construction safety of the high-altitude large cantilever structure of the outer eave of the building,
The cantilever type steel girder 1 is provided with a double-layer support system, the support system is good in support strength, rigidity and stability, high in safety, environment-friendly, low-carbon and environment-friendly, the inclined strut is connected with the cantilever type steel girder 1 through bolts, the disassembly and the assembly are convenient, the connection stability of the inclined strut and the embedded steel plate is good, the appearance is attractive and elegant, the civilized construction effect is good, the cantilever type steel girder 1 is provided with a transverse connecting beam 9 made of Chinese character 'ji', the connecting beam 9 is connected with the cantilever type steel girder 1 through a U-shaped ring assembly 8, and finally a frame body is built by welding a steel pipe splicing positioning rib 10 at the upper part.
While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is intended to cover various modifications, either made by the method concepts and technical solutions of the utility model, or applied directly to other applications without modification, within the scope of the utility model.
Claims (10)
1. The supporting cantilever steel platform for construction of the high-altitude large cantilever structure of the building outer eave is characterized by comprising a plurality of cantilever steel girders (1) arranged at the top of an upper reinforced concrete beam (14) through ground anchor round steel components (4), wherein a first inclined support (2) and a second inclined support (3) are arranged at the bottom of a cantilever end of each cantilever steel girder (1) extending out of the upper reinforced concrete beam (14) through a connecting component (5), the bottoms of the first inclined support (2) and the second inclined support (3) are arranged at the top of a middle reinforced concrete beam (15) through a first embedded component (6), a zigzag reinforced steel pipe component (7) is arranged between the first inclined support (2) and the second inclined support (3), a plurality of connecting beams (9) are arranged at the top of the cantilever end of each cantilever steel girder (1) extending out of the upper reinforced concrete beam (14) through a U-shaped ring component (8), and a plurality of splicing positioning ribs (10) are welded on the connecting beams (9);
The lower inclined steel column (11) is arranged at the bottom of the middle reinforced concrete beam (15) through a second embedded assembly (12), and the lower end of the lower inclined steel column (11) is arranged on the outer wall of a side wall (17) corresponding to the upper surface of the lower reinforced concrete beam (16) through a third embedded assembly (13).
2. The supporting cantilever steel platform for construction of the high-altitude large cantilever structure of the building outer eave according to claim 1 is characterized in that the connecting assembly (5) comprises a first connecting plate (51) welded on the front side and the rear side of the bottom of the cantilever steel girder (1), a second connecting plate (52) welded on the upper end of the outer wall of the first inclined support (2) or the upper end of the outer wall of the second inclined support (3), a plurality of connecting holes (53) are correspondingly formed in the first connecting plate (51) and the second connecting plate (52), the first connecting plate (51) and the second connecting plate (52) are fixedly connected through bolts in the connecting holes (53), and a connecting stiffening rib (54) is arranged between the bottom of the second connecting plate (52) and the outer wall of the first inclined support (2) or the outer wall of the second inclined support (3).
3. The supporting overhanging steel platform for construction of the high-altitude large overhanging structure of the building outer eave according to claim 1, characterized in that the ground anchor round steel assembly (4) comprises round steel (41) embedded in the upper reinforced concrete beam (14) and angle steel (42) arranged at the top of the overhanging steel girder (1), and the upper end of the round steel (41) penetrates out of the overhanging steel girder (1) and the angle steel (42) and is locked through a first nut (43).
4. The supporting cantilever steel platform for construction of the high-altitude large cantilever structure of the building outer eave according to claim 1, wherein the first embedded assembly (6) comprises a plurality of first embedded bars (61) embedded in the top of the middle reinforced concrete beam (15), first steel plates (62) are welded on the tops of the first embedded bars (61), the bottoms of the first inclined supports (2) and the second inclined supports (3) are welded on the first steel plates (62), and first stiffening ribs (63) are arranged on the first steel plates (62).
5. The supporting cantilever steel platform for construction of the large cantilever structure at the high altitude of the building outer eave according to claim 1, wherein the zigzag reinforced steel pipe assembly (7) comprises a first inclined steel pipe (71), a horizontal steel pipe (72) and a second inclined steel pipe (73) welded between the first inclined support (2) and the second inclined support (3), and the first inclined steel pipe (71), the horizontal steel pipe (72) and the second inclined steel pipe (73) are arranged in the zigzag structure.
6. The supporting cantilever steel platform for construction of the high-altitude large cantilever structure of the building outer eave according to claim 1 is characterized in that the U-shaped ring assembly (8) comprises a clamping steel plate (81) arranged at the top of the connecting beam (9), and a U-shaped ring (82) sleeved outside the cantilever steel main beam (1) and the connecting beam (9), and two vertical rods of the U-shaped ring (82) penetrate out of the clamping steel plate (81) and are locked through a second nut (83).
7. The supporting cantilever steel platform for construction of the high-altitude large cantilever structure of the building outer eave according to claim 1, wherein the second embedded assembly (12) comprises a plurality of second embedded bars (121) embedded in the bottom of the middle-layer reinforced concrete beam (15), a second steel plate (122) is welded at the bottom of the second embedded bars (121), and the upper end of the lower-layer inclined steel column (11) is welded on the second steel plate (122).
8. The supporting cantilever steel platform for construction of the high-altitude large cantilever structure of the building outer eave according to claim 1, wherein the third embedded assembly (13) comprises a plurality of third embedded bars (131) embedded in the side wall (17), a third steel plate (132) is welded on the outer side of the third embedded bars (131), and the lower end of the lower inclined steel column (11) is welded on the third steel plate (132).
9. The supporting cantilever steel platform for construction of the high-altitude large cantilever structure of the building outer eave according to claim 1 is characterized by further comprising a diagonal-pulling vertical column (18) arranged at the top of the upper reinforced concrete beam (14), wherein a plurality of stay cables (19) are arranged between the side wall of the diagonal-pulling vertical column (18) and the top of the cantilever steel girder (1).
10. The supporting cantilever steel platform for construction of the large cantilever structure at the high altitude of the building according to claim 1 is characterized in that an included angle between the cantilever steel girder (1) and the first inclined support (2) is 64.13 degrees, and an included angle between the cantilever steel girder (1) and the second inclined support (3) is 47.04 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420676706.9U CN222745586U (en) | 2024-04-03 | 2024-04-03 | Supporting cantilever steel platform for construction of high-altitude large cantilever structure of building outer eave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420676706.9U CN222745586U (en) | 2024-04-03 | 2024-04-03 | Supporting cantilever steel platform for construction of high-altitude large cantilever structure of building outer eave |
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| CN222745586U true CN222745586U (en) | 2025-04-11 |
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| CN202420676706.9U Active CN222745586U (en) | 2024-04-03 | 2024-04-03 | Supporting cantilever steel platform for construction of high-altitude large cantilever structure of building outer eave |
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