CN219431179U - Construction structure of cover-excavation reverse-acting permanent steel pipe column - Google Patents

Construction structure of cover-excavation reverse-acting permanent steel pipe column Download PDF

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Publication number
CN219431179U
CN219431179U CN202223155146.2U CN202223155146U CN219431179U CN 219431179 U CN219431179 U CN 219431179U CN 202223155146 U CN202223155146 U CN 202223155146U CN 219431179 U CN219431179 U CN 219431179U
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China
Prior art keywords
pipe column
steel
steel pipe
bracket
construction structure
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CN202223155146.2U
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刘小滔
郭继禄
许连松
钟林
王柏程
吴东
彭桂文
宋兴涛
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China Railway Guangzhou Engineering Group Co Ltd CRECGZ
CRECGZ Shenzhen Engineering Co Ltd
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China Railway Guangzhou Engineering Group Co Ltd CRECGZ
CRECGZ Shenzhen Engineering Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

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Abstract

The application relates to the technical field, to the easy cracked problem of traditional bracket and steel-pipe column welded part, put forward a lid digs contrary construction structure of making permanent steel-pipe column, including the steel-pipe column, the steel-pipe column bottom inserts to the bored concrete pile top, the steel-pipe column intussuseption is filled with concrete, the steel-pipe column periphery is provided with a plurality of connected nodes, connected node is including a plurality of brackets of welded fastening on the steel-pipe column, the bracket is close to the one end of steel-pipe column and all stretches into to the steel-pipe column inner chamber. This application has the difficult effect that takes place the fracture of messenger's bracket and steel-pipe column welded part.

Description

Construction structure of cover-excavation reverse-acting permanent steel pipe column
Technical Field
The application relates to the technical field of steel pipe columns, in particular to a construction structure of a cover-excavation reverse-acting permanent steel pipe column.
Background
When large-scale underground building structures such as underground stations are constructed, a top-down construction method is usually adopted, and when the top-down construction method is adopted, a support pile is usually required to be firstly constructed as a support system of a subsequent underground building structure, at present, the support pile is usually of a one-column one-pile structure, namely, a cast-in-place pile is firstly constructed, then a steel pipe pile is constructed at the top of the cast-in-place pile, the bottom end of the steel pipe pile is inserted into the top end of the cast-in-place pile, and then concrete is filled into the steel pipe pile.
The periphery of the steel pipe column is provided with a plurality of connecting nodes so as to be convenient for connecting floors of subsequent underground building structures to the steel pipe column, the connecting nodes comprise a plurality of brackets fixed on the periphery of the steel pipe column, and the end parts of the brackets are usually welded on the periphery of the steel pipe column directly at present; after follow-up bracket and floor are connected, load will act on the welded part of bracket and steel-pipe column, leads to the welded part of bracket and steel-pipe column to bear great shearing force, and in the past, the welded part of bracket and steel-pipe column takes place the fracture easily, has restricted the bearing capacity of bracket, exists certain potential safety hazard.
Disclosure of Invention
In order to improve the bearing capacity of bracket, reduce the easy cracked condition of bracket and steel-pipe column welding department, this application provides a lid digs the construction structure of contrary permanent steel-pipe column of doing.
The application provides a lid digs construction structures of contrary permanent steel-pipe column of doing adopts following technical scheme:
the utility model provides a lid digs construction structures that contrary permanent steel-pipe column of doing, includes the steel-pipe column, steel-pipe column bottom inserts to bored concrete pile top, the steel-pipe column intussuseption is filled with concrete, the steel-pipe column periphery is provided with a plurality of connected nodes, the connected node is including a plurality of brackets of welded fastening on the steel-pipe column, the bracket is close to the one end of steel-pipe column and all stretches into to the steel-pipe column inner chamber.
Through adopting above-mentioned technical scheme, stretch into in the steel-pipe column through the one end of bracket, follow-up load accessible bracket dispersion effect is on the concrete structure in the steel-pipe column, reduces the circumstances of load all acting on bracket and steel-pipe column welded part for the welded part of bracket and steel-pipe column is difficult for the fracture, is favorable to promoting the mechanical properties and the bearing capacity of bracket, makes the bracket can fix on the steel-pipe column more firmly.
Preferably, the top and the bottom of the connecting node are respectively provided with a reinforcing ring, and the reinforcing rings are coaxially fixed on the periphery of the steel pipe column and fixed with the bracket towards one side of the bracket.
Through adopting above-mentioned technical scheme, be convenient for promote the joint strength of bracket and steel-pipe column pipe wall junction through the strengthening ring, restrict the bracket simultaneously and take place the displacement.
Preferably, the periphery of the steel pipe column is fixed with a plurality of diagonal braces corresponding to a plurality of brackets, the diagonal braces are positioned at the bottoms of the corresponding brackets, and one ends of the diagonal braces, which are far away from the steel pipe column, are fixed with one ends of the brackets, which are far away from the steel pipe column.
Through adopting above-mentioned technical scheme, through the setting of diagonal brace, the bending resistance of the bracket overhanging end of being convenient for promote through the diagonal brace for the bracket is difficult for taking place bending deformation more.
Preferably, the steel pipe column inner cavity corresponds a plurality of connected nodes and is provided with a plurality of connection structures, the connection structure is including setting up the go-between at connected node top and bottom respectively, the go-between all with a plurality of bracket welded fastening of same connected node.
Through adopting above-mentioned technical scheme, through a plurality of bracket welded fastening of go-between and same connected node, be convenient for promote the connection wholeness of adjacent bracket through the go-between, and then promote connected node's bulk strength.
Preferably, the bottom end of the steel pipe column is plugged.
Through adopting above-mentioned technical scheme for when follow-up injection concrete in the steel-pipe column, the concrete is difficult for spilling over from the steel-pipe column bottom, is favorable to reducing the waste of concrete.
Preferably, the inner cavity of the steel pipe column is also provided with a grouting pipe, and a space is reserved between the bottom end of the grouting pipe and the bottom end of the steel pipe column.
Through adopting above-mentioned technical scheme, be convenient for follow steel-pipe column bottom by supreme filling concrete down through the slip casting pipe, be convenient for form continuous complete concrete structure, after the follow-up concrete setting shaping, still accessible slip casting pipe promotes concrete structure's bulk strength.
Preferably, the top end of the steel pipe column is further provided with a limiting ring, the grouting pipe coaxially penetrates through the limiting ring, the periphery of the limiting ring is further threaded and provided with a locking bolt in a penetrating mode, and one end of the locking bolt is abutted to the periphery of the grouting pipe.
By adopting the technical scheme, the grouting pipe penetrates into the limiting ring and the locking bolt is screwed until the locking bolt is abutted against the grouting pipe, so that the grouting pipe can be installed in the steel pipe column.
Preferably, the inner periphery of the steel pipe column is also coaxially fixed with a plurality of reinforcing rings.
By adopting the technical scheme, the whole strength and the bending resistance of the steel pipe column are conveniently improved through the reinforcing rings.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the steel pipe column comprises a plurality of brackets fixed on the periphery of the steel pipe column through connecting nodes, one ends of the brackets extend into the steel pipe column, concrete is filled in the steel pipe column, the follow-up load can be dispersed to act on the joints of the brackets and the steel pipe column and the concrete in the steel pipe column, cracking is not easy to occur at the joints of the steel pipe column and the brackets, and the brackets can be fixed on the steel pipe column more firmly.
2. Be provided with go-between and a plurality of brackets welded fastening of same connected node in the steel-pipe column, be convenient for promote the connection wholeness of adjacent bracket through the go-between.
3. A plurality of diagonal braces are fixed in the steel pipe column corresponding to the brackets, one ends of the diagonal braces, far away from the steel pipe column, are fixed with one ends of the brackets, far away from the steel pipe column, and bending resistance and bearing capacity of the brackets are conveniently improved through the diagonal braces.
Drawings
Fig. 1 is a schematic overall structure of an embodiment of the present application.
Fig. 2 is a schematic view illustrating an internal structure of a steel pipe column according to an embodiment of the present application.
Fig. 3 is a schematic diagram of the structure of the portion a in fig. 1.
Fig. 4 is a schematic diagram of the structure of the portion B in fig. 1.
Reference numerals illustrate:
1. filling piles; 2. a steel pipe column; 20. anchoring nails; 21. a connecting ring; 22. a reinforcing ring; 23. a flange; 231. reinforcing ribs; 24. a reinforcing ring; 3. connecting the nodes; 31. a bracket; 32. a diagonal brace; 4. grouting pipe; 41. a limiting ring; 42. a locking bolt; 43. and (5) connecting a rod.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-4.
The embodiment of the application discloses lid digs construction structure of contrary permanent steel-pipe column of doing, refer to fig. 1 and 2, including setting up steel-pipe column 2 on bored concrete pile 1 top end, steel-pipe column 2 bottom inserts to bored concrete pile 1 top end face, and steel-pipe column 2 intussuseption is filled with the concrete, evenly is provided with connected node 3 on the steel-pipe column 2, and connected node 3 is including welding the four groups bracket 31 of fixing at steel-pipe column 2 periphery, and the one end of bracket 31 all stretches into in the steel-pipe column 2.
Referring to fig. 1 and 2, in the present embodiment, the brackets 31 are i-steel, and four groups of brackets 31 are uniformly distributed around the axis of the steel pipe column 2. One end of the bracket 31 stretches into the inner cavity of the steel pipe column 2, later-stage load can be dispersed and acted on the concrete structure in the steel pipe column 2 through the bracket 31, and the load is reduced to directly act on the welding part of the bracket 31 and the steel pipe column 2, so that the welding part of the bracket 31 and the steel pipe column 2 is not easy to crack.
Referring to fig. 2 and 3, the top and the bottom of the connection node 3 are both provided with reinforcing rings 24, the reinforcing rings 24 are coaxially fixed on the periphery of the steel pipe column 2, and one side, facing the bracket 31, of the reinforcing rings 24 is fixed with the bracket 31, so that the overall strength of the joint of the bracket 31 and the steel pipe column 2 is conveniently improved through the reinforcing rings 24.
Referring to fig. 2 and 3, a plurality of diagonal braces 32 are welded and fixed to the steel pipe column 2 corresponding to the plurality of brackets 31, in this embodiment, the diagonal braces 32 are i-steel, the diagonal braces 32 are located below the corresponding brackets 31, the diagonal braces 32 are disposed obliquely upwards towards the end far away from the steel pipe column 2, and one end of the diagonal braces 32 far away from the brackets 31 is fixedly connected with one end of the brackets 31 far away from the steel pipe column 2. By arranging the diagonal brace 32, the bending resistance and the overall strength of the bracket 31 are conveniently improved by the diagonal brace 32.
Referring to fig. 2 and 3, the inner cavity of the steel pipe column 2 is provided with a plurality of connection structures corresponding to a plurality of connection nodes 3, the connection structures comprise two groups of connection rings 21, and the two groups of connection rings 21 are respectively arranged at the top and the bottom of the bracket 31. The connecting ring 21 and one ends of the four groups of brackets 31 positioned in the steel pipe column 2 are welded and fixed, so that the connecting integrity of the four groups of brackets 31 is improved through the connecting ring 21.
Referring to fig. 1 and 4, a plurality of reinforcing rings 22 are further coaxially fixed to the inner periphery of the steel pipe column 2, and the reinforcing rings 22 are uniformly distributed along the axial direction of the steel pipe column 2, so that the bending resistance and the overall strength of the steel pipe column 2 are improved through the reinforcing rings 22. A plurality of anchors 20 are uniformly fixed on the periphery of the bottom end of the steel pipe column 2, so that the overall strength of the joint of the steel pipe column 2 and the filling pile 1 is improved. A flange 23 is coaxially fixed at the top end port of the steel pipe column 2, and a plurality of reinforcing rib 231 plates are uniformly fixed between the flange 23 and the steel pipe column 2. The strength at the top end port of the steel pipe column 2 is facilitated to be improved through the flange 23.
Referring to fig. 2 and 4, the bottom end of the steel pipe column 2 is plugged and arranged in an inverted cone shape, and the bottom end of the steel pipe column 2 is plugged and arranged through the bottom end of the steel pipe column 2, so that concrete is limited to seep out from the bottom end of the steel pipe column 2 when concrete is filled into the steel pipe column 2 subsequently, and the concrete is not easy to waste. Still be equipped with slip casting pipe 4 with the pedestal in the steel-pipe column 2, slip casting pipe 4 bottom leaves the interval with steel-pipe column 2 bottom, is convenient for pour into concrete slurry into in the steel-pipe column 2 through slip casting pipe 4 for concrete slurry can form continuous concrete structure from bottom to top.
Referring to fig. 2 and 4, a stop collar 41 is further coaxially mounted on the top end of the steel pipe column 2, a connecting rod 43 is fixed on the periphery of the stop collar 41, the axial direction of the connecting rod 43 is perpendicular to the axial direction of the stop collar 41, and one end, away from the stop collar 41, of the connecting rod 43 is fixed with the inner cavity of the steel pipe column 2. The grouting pipe 4 coaxially penetrates through the limiting ring 41, the periphery of the limiting ring 41 is further provided with a locking bolt 42 in a threaded manner, one end of the locking bolt 42 stretches into the inner cavity of the limiting ring 41 and abuts against the periphery of the grouting pipe 4, and the grouting pipe 4 is erected in the steel pipe column 2.
The implementation principle of the embodiment of the application is as follows: when the connecting node 3 is installed, a notch for the bracket 31 to penetrate is cut on the periphery of the steel pipe column 2, one end of the bracket 31 penetrates into the inner cavity of the steel pipe column 2 through the notch, the bracket 31 is welded and fixed on the pipe wall of the steel pipe column 2, the bracket 31 is fixed, and the above steps are repeated until all the brackets 31 are installed.
The two groups of reinforcing rings 24 corresponding to the connecting node 3 are sleeved into the steel pipe column 2, the two groups of reinforcing rings 24 are moved to enable the two groups of reinforcing rings 24 to respectively abut against the top and the bottom of the bracket 31 of the same connecting node 3, and finally, the abutting positions of the reinforcing rings 24 and the steel pipe column 2 and the abutting positions of the reinforcing rings 24 and the bracket 31 are welded and fixed respectively. Welding and fixing the connecting ring 21 and four groups of brackets 31 with the same connecting structure
Finally, the diagonal brace 32 is mounted and fixed, and both ends of the diagonal brace 32 are welded to the outer periphery of the steel pipe column 2 and one end of the bracket 31 away from the steel pipe column 2.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. The utility model provides a lid digs construction structure of contrary permanent steel-pipe column of doing which characterized in that: including steel-pipe column (2), steel-pipe column (2) bottom inserts to bored concrete pile (1) top, steel-pipe column (2) intussuseption is filled with concrete, steel-pipe column (2) periphery is provided with a plurality of connected node (3), connected node (3) are including a plurality of brackets (31) of welded fastening on steel-pipe column (2), bracket (31) are close to the one end of steel-pipe column (2) and all stretch into to steel-pipe column (2) inner chamber.
2. The construction structure of a cover-excavation reverse-work permanent steel pipe column according to claim 1, characterized in that: the top and the bottom of the connecting node (3) are respectively provided with a reinforcing ring (24), the reinforcing rings (24) are coaxially fixed on the periphery of the steel pipe column (2), and one side, facing towards the bracket (31), of the reinforcing rings (24) is fixed with the bracket (31).
3. The construction structure of a cover-excavation reverse-work permanent steel pipe column according to claim 1, characterized in that: the steel-pipe column (2) periphery corresponds a plurality of corbels (31) and is fixed with a plurality of diagonal brace (32), diagonal brace (32) are located corresponding corbel (31) bottom and diagonal brace (32) keep away from the one end of steel-pipe column (2) and all keep away from the one end of steel-pipe column (2) with corbel (31) and fix.
4. The construction structure of the cover-excavation reverse-work permanent steel pipe column according to claim 3, wherein: the steel pipe column (2) inner chamber corresponds a plurality of connected node (3) and is provided with a plurality of connection structure, connection structure is including setting up go-between (21) at connected node (3) top and bottom respectively, go-between (21) all with a plurality of bracket (31) welded fastening of same connected node (3).
5. The construction structure of a cover-excavation reverse-work permanent steel pipe column according to claim 1, characterized in that: and the bottom end of the steel pipe column (2) is plugged.
6. The construction structure of the cover-excavation reverse-work permanent steel pipe column according to claim 5, wherein: grouting pipes (4) are further erected in the inner cavities of the steel pipe columns (2), and a space is reserved between the bottom ends of the grouting pipes (4) and the bottom ends of the steel pipe columns (2).
7. The construction structure of the cover-excavation reverse-work permanent steel pipe column according to claim 6, wherein: the grouting device is characterized in that a limiting ring (41) is further arranged at the top end of the steel pipe column (2), the grouting pipe (4) coaxially penetrates through the limiting ring (41), a locking bolt (42) is further threaded on the periphery of the limiting ring (41), and one end of the locking bolt (42) is tightly propped against the periphery of the grouting pipe (4).
8. The construction structure of a cover-excavation reverse-work permanent steel pipe column according to claim 1, characterized in that: the inner periphery of the steel pipe column (2) is also coaxially fixed with a plurality of reinforcing rings (22).
CN202223155146.2U 2022-11-26 2022-11-26 Construction structure of cover-excavation reverse-acting permanent steel pipe column Active CN219431179U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223155146.2U CN219431179U (en) 2022-11-26 2022-11-26 Construction structure of cover-excavation reverse-acting permanent steel pipe column

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223155146.2U CN219431179U (en) 2022-11-26 2022-11-26 Construction structure of cover-excavation reverse-acting permanent steel pipe column

Publications (1)

Publication Number Publication Date
CN219431179U true CN219431179U (en) 2023-07-28

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Country Status (1)

Country Link
CN (1) CN219431179U (en)

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