CN216276198U - Connecting joint of square concrete-filled steel tube superposed column and reinforced concrete beam - Google Patents
Connecting joint of square concrete-filled steel tube superposed column and reinforced concrete beam Download PDFInfo
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- CN216276198U CN216276198U CN202122354577.0U CN202122354577U CN216276198U CN 216276198 U CN216276198 U CN 216276198U CN 202122354577 U CN202122354577 U CN 202122354577U CN 216276198 U CN216276198 U CN 216276198U
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Abstract
The utility model discloses a connecting node of a square steel tube concrete composite column and a reinforced concrete beam, the square steel tube concrete composite column comprises a square steel tube column which is internally filled and externally wrapped with concrete, and studs distributed on the peripheral outer side wall of the square steel tube column, the reinforced concrete beam comprises longitudinal stress bars positioned at the upper layer and the lower layer, a longitudinal structure waist bar and a hoop bar positioned in the middle, the longitudinal stress bars at the upper layer and the lower layer are respectively provided with an upper row and a lower row, a steel bar connector for butt-connecting the longitudinal stress bars at the upper layer and the lower row is welded on the outer side wall of the square steel tube column, the transverse connection plate is used for welding the upper-layer lower-row longitudinal stress bars, the steel bar connector used for butt joint of the longitudinal-structure waist bars, the steel bar connector used for butt joint of the lower-layer upper-row longitudinal stress bars and the transverse connection plate used for welding the lower-layer lower-row longitudinal stress bars, and the transverse connection plate is provided with a through hole through which the stirrup passes. The reinforced concrete ring beam is removed from the joint, the construction is simple and convenient, holes do not need to be formed in the pipe wall of the square steel pipe column, and the stress is good.
Description
Technical Field
The utility model belongs to the field of civil engineering mixed structures, and particularly relates to a connecting node of a square concrete-filled steel tube superposed column and a reinforced concrete beam.
Background
With the development of modern building forms, various high-difficulty structures such as large span, super high-rise, large cantilever string and the like are in endless, so that the requirements on building materials are higher and higher, and the combined structure of the high-strength and high-bearing-capacity concrete-filled steel tube composite column is widely applied.
Compared with a simple reinforced concrete structure, the combined structure of the concrete-filled steel tube composite column has the advantages of high bearing capacity, short construction period, good anti-seismic performance and the like, but the combined structure of the concrete-filled steel tube composite column has the problems of complex node structure and larger construction difficulty, namely, a plurality of reinforcing steel bars at nodes are bound and poured difficultly, holes are required to be formed in the wall of a steel tube generally, and the cross section is weakened easily.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a connecting node of a square steel tube concrete composite column and a reinforced concrete beam, which is simple and convenient to construct by removing a reinforced concrete ring beam, does not need to open a hole on the tube wall of the square steel tube column, avoids weakening the cross section and has good stress performance.
The technical scheme adopted by the utility model is as follows:
a connecting node of a square concrete filled steel tube superposed column and a reinforced concrete beam comprises the square concrete filled steel tube superposed column and the reinforced concrete beam; the square steel tube concrete superposed column comprises a square steel tube column which is internally filled with concrete and externally wrapped by the concrete, studs distributed on the outer side wall of the periphery of the square steel tube column, a reinforced concrete beam comprises longitudinal stress bars located on the upper layer and the lower layer, longitudinal structural waist bars located in the middle of the reinforced concrete beam, stirrups, the longitudinal stress bars on the upper layer and the lower layer are both provided with an upper row and a lower row, a reinforcing steel bar connector used for connecting the longitudinal stress bars on the upper layer is welded on the outer side wall of the square steel tube column, a transverse connecting plate used for welding the longitudinal stress bars on the upper layer and the lower layer, a reinforcing steel bar connector used for connecting the longitudinal stress bars on the lower layer, a transverse connecting plate used for welding the longitudinal stress bars on the lower layer and the lower layer, and a through hole for the stirrups to pass is formed in the transverse connecting plate.
Furthermore, the lower side of the transverse connecting plate is provided with a plurality of vertical stiffening plates, and the vertical stiffening plates are welded and fixed with the outer side wall of the square steel pipe column and the lower side surface of the transverse connecting plate.
Furthermore, an inner stiffening plate is welded in the square steel pipe column at a position corresponding to the transverse connecting plate, and a pouring hole and an air vent are formed in the inner stiffening plate.
Preferably, the thickness of the inner stiffening plate is greater than or equal to 12mm, the diameter of the pouring hole is greater than or equal to 200mm, and the diameter of the air hole is greater than or equal to 25 mm.
Preferably, in the reinforced concrete beam, the distance between the first stirrup and the outer side wall of the square steel pipe column is 50mm, and the distance between the other stirrups is 75 mm.
Preferably, the side length B of the square steel pipe column is greater than or equal to 600mm, and the side length B of the square steel pipe concrete composite column is greater than or equal to 1000 mm.
Preferably, the steel bar connector and the transverse connecting plate are connected with the outer side wall of the square steel pipe column at equal strength.
Preferably, the length of the steel bar connector is 2d +5mm, and d is the diameter of the butted steel bars.
Preferably, the transverse connecting plate and the connected steel bars are welded in a double-sided fillet welding mode, the length of the welding line is greater than or equal to 5d, and d is the diameter of the connected steel bars.
Preferably, the length of the transverse connecting plate is equal to the width of the reinforced concrete beam, the width of the transverse connecting plate is greater than or equal to 150mm and less than or equal to-50 mm of the thickness of the external concrete of the square steel pipe column, and the thickness of the transverse connecting plate is greater than or equal to 20 mm.
The utility model has the beneficial effects that:
this node compares with current node, reinforced concrete roof beam lug connection has removed the reinforced concrete ring beam that the structure is complicated on the square steel tubular column, it is numerous to avoid the node reinforcing bar, the difficulty is pour in the ligature, the construction process has been simplified greatly, the construction is simple and convenient, and need not trompil on the pipe wall of square steel tubular column, the reinforcing bar of connecting the roof beam through reinforcing bar connector and transverse connection board, avoided causing the weakening of cross-section, good atress performance has, the biography power is clear and definite, be suitable for popularization and application.
Drawings
Fig. 1 is a plan layout view of a connection node of a square concrete filled steel tube composite column and a reinforced concrete beam in the embodiment of the utility model.
Fig. 2 is a longitudinal sectional view schematically illustrating a connection node of a square concrete filled steel tube composite column and a reinforced concrete beam according to an embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view of a square concrete filled steel tube composite column and a reinforced concrete beam connection node at an end face of the reinforced concrete beam in the embodiment of the utility model.
In the figure: 1-square steel tube concrete composite column; 2-reinforced concrete beam; 3-a steel bar connector; 4-transverse connection plate; 5-vertical stiffening plates; 6-inner stiffening plate; 7-longitudinal stress ribs (upper row); 8-longitudinal stress ribs (lower row); 9-stirrup; 10-longitudinally constructing a waist rib; 11-square steel pipe columns; 12-peg.
Detailed Description
The utility model is further described below with reference to the figures and examples.
As shown in fig. 1 to 3, a connection node of a square concrete filled steel tube composite column and a reinforced concrete beam includes a square concrete filled steel tube composite column 1 and a reinforced concrete beam 2; the square steel tube concrete composite column 1 comprises a square steel tube column 11 which is internally filled and externally wrapped with concrete, and studs 12 which are distributed on the peripheral outer side wall of the square steel tube column 11, a reinforced concrete beam 2 comprises longitudinal stress bars (7 and 8) positioned at the upper layer and the lower layer, a longitudinal structure waist bar 10 positioned in the middle and a stirrup 9, the longitudinal stress bars (7 and 8) at the upper layer and the lower layer are both provided with an upper row and a lower row, a steel bar connector 3 which is used for butt-connecting the longitudinal stress bars 7 at the upper layer and the upper row is welded on the outer side wall of the square steel tube column 11, the transverse connection plate 4 is used for welding the upper-layer lower-row longitudinal stress bar 8, the steel bar connector 3 is used for butt joint of the longitudinal structure waist bar 10, the steel bar connector 3 is used for butt joint of the lower-layer upper-row longitudinal stress bar 7, the transverse connection plate 4 is used for welding the lower-layer lower-row longitudinal stress bar 8, and the transverse connection plate 4 is provided with a through hole for the hoop bar 9 to penetrate through. This node is compared with current node, 2 lug connection of reinforced concrete roof beam are on square steel-pipe column 11, the reinforced concrete ring beam that the structure is complicated has been removed, it is numerous to avoid the node reinforcing bar, the ligature is pour the difficulty, the construction process has been simplified greatly, the construction is simple and convenient, and need not trompil on the pipe wall of square steel-pipe column 11, the reinforcing bar of connecting the roof beam is plugged into through reinforcing bar connector 3 and transverse connection board 4, the weakening that causes the cross-section has been avoided, good atress performance has, it is clear and definite to pass power, be suitable for popularization and application.
As shown in fig. 2 and 3, a plurality of vertical stiffening plates 5 may be arranged on the lower side of the transverse connecting plate 4, the vertical stiffening plates 5 are welded and fixed with the outer side wall of the square steel pipe column 11 and the lower side surface of the transverse connecting plate 4, and the vertical stiffening plates 5 improve the stress performance of the transverse connecting plate 4; in this embodiment, three vertical stiffening plates 5 are used, one vertical stiffening plate is located in the middle of the beam, and two symmetrical positions are located at two sides of the beam (75 mm away from the beam edge), and the thickness of the vertical stiffening plate 5 is greater than or equal to 10mm and is connected through fillet welds.
As shown in fig. 1 and 2, an inner stiffening plate 6 may be welded at a position corresponding to the transverse connecting plate 4 inside the square steel pipe column 11, the inner stiffening plate 6 is provided with a pouring hole and an air vent, and the inner stiffening plate 6 can further improve the stress performance of the transverse connecting plate 4 without affecting pouring; in the embodiment, the thickness of the inner stiffening plate 6 is greater than or equal to 12mm, the diameter of the pouring hole is greater than or equal to 200mm, and the diameter of the air hole is greater than or equal to 25 mm.
In this embodiment, in reinforced concrete beam 2, first stirrup 9 is 50mm apart from 11 lateral walls of square steel-pipe column, and remaining stirrup 9 is 75mm apart from.
In the present embodiment, the side length B of the square steel pipe column 11 is greater than or equal to 600mm, and the side length B of the square steel pipe concrete composite column 1 is greater than or equal to 1000 mm.
In this embodiment, the reinforcing bar connector 3 and the transverse connection plate 4 are connected with the outer side wall of the square steel pipe column 11 with equal strength.
In this embodiment, the length of the steel bar connector 3 is 2d +5mm, and d is the diameter of the steel bar to be connected.
In this embodiment, the transverse connection plate 4 and the connected steel bar are welded by a double-sided fillet welding method, the length of the welding seam is greater than or equal to 5d, and d is the diameter of the connected steel bar.
In the embodiment, the length of the transverse connection plate 4 is equal to the width of the reinforced concrete beam 2, the width of the transverse connection plate 4 is greater than or equal to 150mm and less than or equal to-50 mm of the thickness of the concrete outside the square steel pipe column 11, and the thickness of the transverse connection plate 4 is greater than or equal to 20 mm.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the utility model as defined in the appended claims.
Claims (10)
1. The utility model provides a connected node of square steel core concrete composite column and reinforced concrete roof beam which characterized in that: the concrete-filled steel tube composite column comprises a square concrete-filled steel tube composite column and a reinforced concrete beam; the square steel tube concrete superposed column comprises a square steel tube column which is internally filled with concrete and externally wrapped by the concrete, studs distributed on the outer side wall of the periphery of the square steel tube column, a reinforced concrete beam comprises longitudinal stress bars located on the upper layer and the lower layer, longitudinal structural waist bars located in the middle of the reinforced concrete beam, stirrups, the longitudinal stress bars on the upper layer and the lower layer are both provided with an upper row and a lower row, a reinforcing steel bar connector used for connecting the longitudinal stress bars on the upper layer is welded on the outer side wall of the square steel tube column, a transverse connecting plate used for welding the longitudinal stress bars on the upper layer and the lower layer, a reinforcing steel bar connector used for connecting the longitudinal stress bars on the lower layer, a transverse connecting plate used for welding the longitudinal stress bars on the lower layer and the lower layer, and a through hole for the stirrups to pass is formed in the transverse connecting plate.
2. The joint of a square concrete-filled steel tube composite column and a reinforced concrete beam according to claim 1, wherein: the lower side of the transverse connecting plate is provided with a plurality of vertical stiffening plates, and the vertical stiffening plates are welded and fixed with the outer side wall of the square steel pipe column and the lower side surface of the transverse connecting plate.
3. The joint of a square concrete-filled steel tube composite column and a reinforced concrete beam according to claim 1, wherein: an inner stiffening plate is welded in the square steel pipe column at a position corresponding to the transverse connecting plate, and a pouring hole and an air vent are formed in the inner stiffening plate.
4. The joint of a square concrete-filled steel tube composite column and a reinforced concrete beam according to claim 3, wherein: the thickness of the inner stiffening plate is greater than or equal to 12mm, the diameter of the pouring hole is greater than or equal to 200mm, and the diameter of the air hole is greater than or equal to 25 mm.
5. The joint of a square concrete-filled steel tube composite column and a reinforced concrete beam according to claim 1, wherein: in the reinforced concrete beam, the distance between the first stirrup and the outer side wall of the square steel pipe column is 50mm, and the distance between the other stirrups is 75 mm.
6. The joint of a square concrete-filled steel tube composite column and a reinforced concrete beam according to claim 1, wherein: the side length B of the square steel pipe column is larger than or equal to 600mm, and the side length B of the square steel pipe concrete composite column is larger than or equal to 1000 mm.
7. The joint of a square concrete-filled steel tube composite column and a reinforced concrete beam according to claim 1, wherein: the steel bar connector and the transverse connecting plate are all connected with the outer side wall of the square steel pipe column at equal strength.
8. The joint of a square concrete-filled steel tube composite column and a reinforced concrete beam according to claim 1, wherein: the length of the steel bar connector is 2d +5mm, and d is the diameter of the butted steel bars.
9. The joint of a square concrete-filled steel tube composite column and a reinforced concrete beam according to claim 1, wherein: the transverse connecting plate and the connected steel bars are welded in a double-sided fillet welding mode, the length of the welding line is greater than or equal to 5d, and d is the diameter of the connected steel bars.
10. The joint of a square concrete-filled steel tube composite column and a reinforced concrete beam according to claim 1, wherein: the length of the transverse connecting plate is equal to the width of the reinforced concrete beam, the width of the transverse connecting plate is greater than or equal to 150mm and smaller than or equal to-50 mm of the thickness of the concrete outside the square steel pipe column, and the thickness of the transverse connecting plate is greater than or equal to 20 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122354577.0U CN216276198U (en) | 2021-09-27 | 2021-09-27 | Connecting joint of square concrete-filled steel tube superposed column and reinforced concrete beam |
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| CN202122354577.0U CN216276198U (en) | 2021-09-27 | 2021-09-27 | Connecting joint of square concrete-filled steel tube superposed column and reinforced concrete beam |
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| CN216276198U true CN216276198U (en) | 2022-04-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217269A (en) * | 2022-07-29 | 2022-10-21 | 中电建十一局工程有限公司 | Combined structure of steel pipe concrete superposed column and reinforced concrete beam |
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2021
- 2021-09-27 CN CN202122354577.0U patent/CN216276198U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217269A (en) * | 2022-07-29 | 2022-10-21 | 中电建十一局工程有限公司 | Combined structure of steel pipe concrete superposed column and reinforced concrete beam |
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