CN113107086A - Reinforced prefabricated square steel pipe column bracket joint structure and construction method - Google Patents
Reinforced prefabricated square steel pipe column bracket joint structure and construction method Download PDFInfo
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- CN113107086A CN113107086A CN202110491106.6A CN202110491106A CN113107086A CN 113107086 A CN113107086 A CN 113107086A CN 202110491106 A CN202110491106 A CN 202110491106A CN 113107086 A CN113107086 A CN 113107086A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/30—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
- E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
Abstract
The invention discloses a reinforced prefabricated square steel pipe column bracket node structure and a construction method, and relates to the technical field of building engineering connecting nodes. The invention provides a reinforced prefabricated square steel pipe column bracket node and a construction method thereof, aiming at improving the reliability and the assembly of the node.
Description
Technical Field
The invention relates to the technical field of building engineering connecting nodes, in particular to a reinforced prefabricated square steel pipe column bracket node structure and a construction method.
Background
In recent years, steel structure building industrialization and assembly type building policies are continuously issued, green buildings and building materials are actively promoted, and steel structures and assembly type buildings are vigorously developed. The assembled steel structure system is a building produced by manufacturing house units or components according to the specifications of unified and standard building parts and then transporting the building units or components to a construction site for assembly in place, and is characterized by light building weight, energy conservation, environmental protection, high construction speed, high industrialization degree and the like, can solve the problems of low building industrialization level, low building construction labor productivity, low quality of traditional house products and the like in China, and is suitable for the development of the building industry in China.
The beam column node is a basic component of a frame structure, has great influence on the stress and safety of the whole structure, once the connection is damaged, a structural member cannot play a role, whether the structure is reasonable or not is directly related to the safety and reliability of the structure, and the construction method of the beam column node directly influences the construction speed of engineering and the assembly degree of the structure. Therefore, if the reliability of the beam-column joint of the square steel tube concrete column needs to be improved, the method needs to start from the aspect of a strengthening form of joint connection.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a reinforced prefabricated square steel pipe column bracket node in order to improve the reliability and the assembly performance of the node.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a prefabricated square steel pipe column bracket node of strenghthened type, square steel pipe column constitute by square steel pipe and the core concrete of pouring in square steel pipe, square steel pipe column include along vertical coaxial top steel pipe column and the below steel pipe column that sets up, the lower extreme of top steel pipe column and the upper end of below steel pipe column between be connected with the node connecting piece, the node connecting piece on the welding have the bracket of making by the I-steel, the bracket arrange into a font or L type or T type or cruciform structure through the I-steel at the surface of node connecting piece, the node connecting piece pass through bracket and precast beam fixed connection.
Preferably, the node connecting piece include square outer steel pipe and square inner steel pipe, the outer wall surface of square steel-pipe column and the inner wall surface clearance fit of square outer steel pipe, square inner steel pipe set up in square outer steel pipe, and the upper end and the lower extreme of square inner steel pipe offset with the square steel pipe end portion of top steel-pipe column and below steel-pipe column respectively.
Preferably, an X-shaped stiffening plate is further arranged inside the square inner steel pipe, and the end part of the X-shaped stiffening plate is welded with the inner corner of the square inner steel pipe.
Preferably, steel pipe limiting plates which are longitudinally arranged are further respectively arranged in regions which are defined by the X-shaped stiffening plates and the inner wall surfaces of the square inner steel pipes, two ends of each steel pipe limiting plate are respectively welded with the wall surfaces of the corresponding X-shaped stiffening plates, the steel pipe limiting plates are arranged in parallel with the side walls of the corresponding square inner steel pipes, the upper ends and the lower ends of the steel pipe limiting plates respectively extend out of the upper ends and the lower ends of the square inner steel pipes, and limiting grooves of the walls of the square steel pipes of the square steel pipe columns are formed between the upper ends and the lower ends of the outer surfaces of the steel pipe limiting plates and the inner wall surfaces of the square outer steel pipes.
Preferably, the upper and lower ends of the outer surface of the steel pipe limiting plate are inclined plate structures inclined inwards, the inclined plate structures form guide plates of the square steel pipe wall, and limiting grooves of the square steel pipe wall are formed between the roots of the guide plates and the inner wall surface of the square outer steel pipe.
Preferably, two ends of the outer surface of the square outer steel pipe are welded with the 'return' type stiffening plates.
Preferably, a plurality of through holes are uniformly formed in the X-shaped stiffening plate.
Preferably, the bracket weld in the surface of square outer steel pipe, the tip welding of precast beam have the I-steel joint that uses with the bracket cooperation, bracket and I-steel joint on be equipped with the bolt hole of mutually supporting, the bracket pass through high strength bolt and precast beam fixed connection.
The invention also aims to provide a construction method of the bracket joint of the prefabricated square steel pipe column.
In order to achieve the purpose, the invention adopts the technical scheme that:
a construction method of a prefabricated square steel pipe column bracket node is characterized in that the reinforced prefabricated square steel pipe column bracket node of any one of claims 1 to 8 is adopted, and the construction method specifically comprises the following steps:
step I, the node connecting piece can be processed in advance in a factory; the node connecting piece consists of an X-shaped stiffening plate, a steel pipe limiting plate, a square inner steel pipe, a square outer steel pipe and a 'return' type stiffening plate 3 e;
step II, a gap is formed between the steel pipe limiting plate and the square outer steel pipe, the steel pipe wall of the inserted square steel pipe column is just placed in the gap, the top end of the pipe wall of the inserted square steel pipe abuts against the end part of the square inner steel pipe, an X-shaped stiffening plate is arranged inside the square inner steel pipe, and small holes are formed in the X-shaped stiffening plate so as to ensure the continuity of concrete when the concrete is poured;
step III, polishing the part in advance at the positions of two ends of the upper and lower square steel pipe columns to be connected so that the ends of the part can be smoothly butted with the end parts of the square inner steel pipes in the node connecting piece, namely, the end parts are smoothly butted to the top ends of the square inner steel pipes along the guide plate and are abutted against the top ends of the square inner steel pipes, the square inner steel pipes are limited by the steel pipe limiting plate and the square outer steel pipes, and after limitation, the square steel pipe columns can be accurately aligned with the connecting direction of the precast beam;
step IV, welding two ends of the square outer steel pipe of the node connecting piece with the connecting part of the square steel pipe column;
and V, placing the precast beam with the I-steel joint in advance at an appointed position, aligning bolt holes of the I-steel corbel and the I-steel joint with each other, then screwing up and reinforcing by using a high-strength bolt, and welding and reinforcing necessary parts.
The reinforced prefabricated square steel pipe column bracket node has the following beneficial effects:
1. the invention has convenient construction: because square steel pipes, node connecting pieces, precast beams, high-strength bolts and the like in the node area can be prefabricated and processed in a factory and welded together, in the engineering operation, the connection can be carried out only after the square steel pipes, the node connecting pieces, the precast beams, the high-strength bolts and the like are hoisted to the specified positions.
2. The node area of the invention adopts the mode that a 'return' type stiffening plate and the like are welded on the node connecting piece to transmit beam bending moment, and an I-shaped steel bracket and an I-shaped steel joint are welded to transmit beam shearing force, so that the stress is reasonable. In addition, no steel bars are arranged in the node area, and the square outer steel pipe is only unfolded to work, so that the condition that the steel bars in the node area are crowded does not exist.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the split structure of the present invention;
FIG. 3 is a schematic view of the nodal connection of the present invention;
FIG. 4a is an exploded view of the node connection of the present invention; FIG. 4b is a front view of the node connection of the present invention; FIG. 4c is a top view of the nodal connection of the present invention;
FIG. 5 is a schematic structural view of the X-shaped stiffener, the steel pipe limiting plate and the square inner steel pipe according to the present invention;
1. the steel pipe column comprises a square steel pipe column body, 2 prefabricated beams, 2a, I-shaped steel joints, 3, a node connecting piece, 3a, an X-shaped stiffening plate, 3b, a steel pipe limiting plate, 3c, a square inner steel pipe, 3d, a square outer steel pipe, 3e, a 'hui' shaped stiffening plate, 4, a bracket, 5, a high-strength bolt, 6 and a bolt hole.
Detailed Description
The technical solutions of the present invention are clearly and completely described below with reference to the drawings and the embodiments of the specification, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
As shown in fig. 1-5:
a reinforced prefabricated square steel pipe column bracket node comprises a square steel pipe and core concrete poured in the square steel pipe, the square steel pipe column 1 comprises an upper steel pipe column and a lower steel pipe column which are coaxially arranged along the longitudinal direction, a node connecting piece 3 is connected between the lower end of the upper steel pipe column and the upper end of the lower steel pipe column, a bracket 4 made of I-steel is welded on the node connecting piece 3, the bracket is arranged on the outer surface of the node connecting piece 3 through the I-steel to form a linear or L-shaped or T-shaped or cross-shaped structure, and the node connecting piece 3 is fixedly connected with a prefabricated beam 2 through the bracket 4;
the joint connecting piece 3 comprises a square outer steel pipe 3d and a square inner steel pipe 3c, the outer wall surface of the square steel pipe column is in clearance fit with the inner wall surface of the square outer steel pipe 3d, the square inner steel pipe 3c is arranged in the square outer steel pipe 3d, and the upper end and the lower end of the square inner steel pipe 3c are respectively abutted against the ends of the square steel pipes of the upper steel pipe column and the lower steel pipe column;
an X-shaped stiffening plate 3a is further arranged inside the square inner steel pipe 3c, and the end part of the X-shaped stiffening plate 3a is welded with the inner corner of the square inner steel pipe 3 c;
steel pipe limiting plates 3b which are longitudinally arranged are respectively arranged in the regions which are defined by the X-shaped stiffening plates 3a and the inner wall surfaces of the square inner steel pipes 3c, two ends of each steel pipe limiting plate 3b are respectively welded with the wall surfaces of the corresponding X-shaped stiffening plates 3a, the steel pipe limiting plates 3b are arranged in parallel with the side walls of the corresponding square inner steel pipes 3c, the upper and lower ends of each steel pipe limiting plate 3b respectively extend out of the upper and lower ends of each square inner steel pipe 3c, and a limiting groove of the wall of each square steel pipe of the square steel pipe column 1 is formed between the upper and lower ends of the outer surface of each steel pipe limiting plate 3b and the inner wall surface of each square outer steel pipe 3 d;
the upper end and the lower end of the outer surface of the steel pipe limiting plate 3b are of inclined plate structures inclined inwards, the inclined plate structures form guide plates of the square steel pipe wall, and a limiting groove of the square steel pipe wall is formed between the root of each guide plate and the surface of the inner wall of the square outer steel pipe 3 d;
two ends of the outer surface of the square outer steel pipe 3d are also welded with a 'return' type stiffening plate 3 e;
a plurality of through holes are uniformly formed in the X-shaped stiffening plate 3 a;
Example 2
A construction method of a prefabricated square steel pipe column bracket node is characterized in that the reinforced prefabricated square steel pipe column bracket node of any one of claims 1 to 8 is adopted, and the construction method specifically comprises the following steps:
step I, the node connecting piece can be processed in advance in a factory; the node connecting piece consists of an X-shaped stiffening plate, a steel pipe limiting plate, a square inner steel pipe, a square outer steel pipe and a 'return' type stiffening plate 3 e;
step II, a gap is formed between the steel pipe limiting plate and the square outer steel pipe, the steel pipe wall of the inserted square steel pipe column is just placed in the gap, the top end of the pipe wall of the inserted square steel pipe abuts against the end part of the square inner steel pipe, an X-shaped stiffening plate is arranged inside the square inner steel pipe, and small holes are formed in the X-shaped stiffening plate so as to ensure the continuity of concrete when the concrete is poured;
step III, polishing the part in advance at the positions of two ends of the upper and lower square steel pipe columns to be connected so that the ends of the part can be smoothly butted with the end parts of the square inner steel pipes in the node connecting piece, namely, the end parts are smoothly butted to the top ends of the square inner steel pipes along the guide plate and are abutted against the top ends of the square inner steel pipes, the square inner steel pipes are limited by the steel pipe limiting plate and the square outer steel pipes, and after limitation, the square steel pipe columns can be accurately aligned with the connecting direction of the precast beam;
step IV, welding two ends of the square outer steel pipe of the node connecting piece with the connecting part of the square steel pipe column;
and V, placing the precast beam with the I-steel joint in advance at an appointed position, aligning bolt holes of the I-steel corbel and the I-steel joint with each other, then screwing up and reinforcing by using a high-strength bolt, and welding and reinforcing necessary parts.
Example 3
A construction building adopts a reinforced prefabricated square steel pipe column bracket node and uses a prefabricated square steel pipe column bracket node construction method for integral installation.
Example 4
The use principle of the invention is as follows:
the node connecting piece 3 can be processed in a factory in advance, the node connecting piece 3 consists of an X-shaped stiffening plate 3a, a steel pipe limiting plate 3b, a square inner steel pipe 3c, a square outer steel pipe 3d and a 'return' type stiffening plate 3e, wherein the steel pipe wall of the inserted square steel pipe column 1 is just placed in a gap between the steel pipe limiting plate 3b and the square outer steel pipe 3d, the top end of the pipe wall of the inserted square steel pipe is abutted against the end part of the square inner steel pipe 3c, the X-shaped stiffening plate 3a is arranged inside the square inner steel pipe 3c, and small holes are formed in the X-shaped stiffening plate 3a to ensure the continuity of concrete when the concrete is poured.
Before the installation, on the position at two upper and lower square steel-pipe column both ends that need connect, polish this part in advance and handle, so that the tip of square interior steel pipe 3c in its end and the node connecting piece 3 can the smooth butt joint, along the top of square interior steel pipe of deflector smooth butt joint promptly, and offset rather than, and spacing by steel pipe limiting plate and square outer steel pipe, spacing back, the square steel-pipe column can carry out accurate counterpoint with the direction of connection of precast beam, then weld the both ends of the square outer steel pipe of node connecting piece 3 and the position of being connected of square steel-pipe column. And then placing the precast beam 2 provided with the I-steel joint 2a in advance at a specified position, aligning the I-steel corbel 4 and the bolt hole 6 of the I-steel joint 2a to be in a normal position, then screwing and reinforcing by using a high-strength bolt 5, and welding and reinforcing necessary parts.
The invention has convenient construction: because square steel pipes, node connecting pieces, precast beams, high-strength bolts and the like in the node area can be prefabricated and processed in a factory and welded together, in the engineering operation, the connection can be carried out only after the square steel pipes, the node connecting pieces, the precast beams, the high-strength bolts and the like are hoisted to the specified positions. The node area of the invention adopts the mode that a 'return' type stiffening plate and the like are welded on the node connecting piece to transmit beam bending moment, and an I-shaped steel bracket and an I-shaped steel joint are welded to transmit beam shearing force, so that the stress is reasonable. In addition, no steel bars are arranged in the node area, and the node area is only unfolded and operated outside the square outer steel pipe, so that the condition that the steel bars in the node area are crowded does not exist
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (9)
1. The utility model provides a prefabricated square steel tubular column bracket node of strenghthened type, characterized in that: the square steel pipe column comprises a square steel pipe and core concrete poured in the square steel pipe, the square steel pipe column comprises an upper steel pipe column and a lower steel pipe column which are coaxially arranged along the longitudinal direction, a node connecting piece is connected between the lower end of the upper steel pipe column and the upper end of the lower steel pipe column, a bracket made of I-steel is welded on the node connecting piece, the bracket is arranged on the outer surface of the node connecting piece into a straight line shape, an L-shaped structure, a T-shaped structure or a cross-shaped structure through the I-steel, and the node connecting piece is fixedly connected with the precast beam through the bracket.
2. The reinforced prefabricated square steel pipe column bracket joint as recited in claim 1, wherein: the node connecting piece include square outer steel pipe and square inner steel pipe, the outer wall surface of square steel pipe column and the inner wall surface clearance fit of square outer steel pipe, square inner steel pipe set up in square outer steel pipe, and the square inner steel pipe's upper end and lower extreme offset with the square steel pipe tip of top steel pipe column and below steel pipe column respectively.
3. The reinforced prefabricated square steel pipe column bracket joint as recited in claim 2, wherein: the square inner steel pipe is characterized in that an X-shaped stiffening plate is further arranged inside the square inner steel pipe, and the end part of the X-shaped stiffening plate is welded with the inner corner of the square inner steel pipe.
4. The reinforced prefabricated square steel pipe column bracket joint as recited in claim 3, wherein: the steel tube column is characterized in that steel tube limiting plates which are longitudinally arranged are respectively arranged in regions which are defined by the X-shaped stiffening plates and the inner wall surfaces of the square inner steel tubes, two ends of each steel tube limiting plate are respectively welded with the wall surfaces of the corresponding X-shaped stiffening plates, the steel tube limiting plates are arranged in parallel with the side walls of the corresponding square inner steel tubes, the upper end and the lower end of each steel tube limiting plate respectively extend out of the upper end and the lower end of each square inner steel tube, and a limiting groove of the wall of each square steel tube of the square steel tube column is formed between the upper end and the lower end of the outer surface of each steel tube limiting plate and the.
5. The reinforced prefabricated square steel pipe column bracket joint as recited in claim 4, wherein: the outer surface of steel pipe limiting plate on the lower extreme be the swash plate structure of inboard slope, the swash plate structure constitute the deflector of square steel pipe wall, the root of deflector and the inner wall surface of square outer steel pipe between constitute the spacing groove of square steel pipe wall.
6. The reinforced prefabricated square steel pipe column bracket joint as recited in claim 5, wherein: the two ends of the outer surface of the square outer steel pipe are welded with the 'return' type stiffening plates.
7. The reinforced prefabricated square steel pipe column bracket joint as recited in claim 6, wherein: and a plurality of through holes are uniformly formed in the X-shaped stiffening plate.
8. The reinforced prefabricated square steel pipe column bracket joint as recited in claim 7, wherein: the bracket weld in the surface of square outer steel pipe, the tip welding of precast beam have the I-steel joint that uses with the bracket cooperation, bracket and I-steel joint on be equipped with the bolt hole of mutually supporting, the bracket pass through high strength bolt and precast beam fixed connection.
9. A construction method of a prefabricated square steel pipe column bracket node is characterized in that the reinforced prefabricated square steel pipe column bracket node of any one of claims 1 to 8 is adopted, and the construction method specifically comprises the following steps:
step I, the node connecting piece can be processed in advance in a factory; the node connecting piece consists of an X-shaped stiffening plate, a steel pipe limiting plate, a square inner steel pipe, a square outer steel pipe and a 'return' type stiffening plate 3 e;
step II, a gap is formed between the steel pipe limiting plate and the square outer steel pipe, the steel pipe wall of the inserted square steel pipe column is just placed in the gap, the top end of the pipe wall of the inserted square steel pipe abuts against the end part of the square inner steel pipe, an X-shaped stiffening plate is arranged inside the square inner steel pipe, and small holes are formed in the X-shaped stiffening plate so as to ensure the continuity of concrete when the concrete is poured;
step III, polishing the part in advance at the positions of two ends of the upper and lower square steel pipe columns to be connected so that the ends of the part can be smoothly butted with the end parts of the square inner steel pipes in the node connecting piece, namely, the end parts are smoothly butted to the top ends of the square inner steel pipes along the guide plate and are abutted against the top ends of the square inner steel pipes, the square inner steel pipes are limited by the steel pipe limiting plate and the square outer steel pipes, and after limitation, the square steel pipe columns can be accurately aligned with the connecting direction of the precast beam;
step IV, welding two ends of the square outer steel pipe of the node connecting piece with the connecting part of the square steel pipe column;
and V, placing the precast beam with the I-steel joint in advance at an appointed position, aligning bolt holes of the I-steel corbel and the I-steel joint with each other, then screwing up and reinforcing by using a high-strength bolt, and welding and reinforcing necessary parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110491106.6A CN113107086A (en) | 2021-05-06 | 2021-05-06 | Reinforced prefabricated square steel pipe column bracket joint structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110491106.6A CN113107086A (en) | 2021-05-06 | 2021-05-06 | Reinforced prefabricated square steel pipe column bracket joint structure and construction method |
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| CN113107086A true CN113107086A (en) | 2021-07-13 |
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|---|---|---|---|
| CN202110491106.6A Pending CN113107086A (en) | 2021-05-06 | 2021-05-06 | Reinforced prefabricated square steel pipe column bracket joint structure and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023024281A1 (en) * | 2021-08-25 | 2023-03-02 | 江苏沪宁钢机股份有限公司 | Internally multi-stiffened round tube adapter supporting node with structure in shape of chinese character "目", and manufacturing process therefor |
-
2021
- 2021-05-06 CN CN202110491106.6A patent/CN113107086A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023024281A1 (en) * | 2021-08-25 | 2023-03-02 | 江苏沪宁钢机股份有限公司 | Internally multi-stiffened round tube adapter supporting node with structure in shape of chinese character "目", and manufacturing process therefor |
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