CN113389271A - Novel assembled concrete beam column node - Google Patents
Novel assembled concrete beam column node Download PDFInfo
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- CN113389271A CN113389271A CN202110797904.1A CN202110797904A CN113389271A CN 113389271 A CN113389271 A CN 113389271A CN 202110797904 A CN202110797904 A CN 202110797904A CN 113389271 A CN113389271 A CN 113389271A
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- concrete
- precast
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- steel
- bolt
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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
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
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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
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
- E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
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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
- E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
- E04B1/5831—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially rectangular form
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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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/64—Insulation or other protection; Elements or use of specified material therefor for making damp-proof; Protection against corrosion
- E04B1/642—Protecting metallic construction elements against corrosion
-
- 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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
- E04B1/943—Building elements specially adapted therefor elongated
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a novel assembly type concrete beam-column joint which comprises a concrete precast beam, a concrete precast column, a connecting steel plate, a connecting angle steel, a high-strength bolt and an embedded part, wherein the concrete precast beam is arranged on the concrete precast column; the prefabricated column is provided with an embedded part in a node core area to form a bolt hole channel, and the prefabricated beam is provided with an embedded part at a T-shaped end to form a bolt hole channel; the connecting steel plate and the connecting angle steel are also respectively provided with holes at the positions corresponding to the pore canals of the precast beam and the precast column; after the connecting bolt is inserted into the pore channel, the two ends of the connecting bolt are fixed with the connecting steel plate or the connecting angle steel, so that the concrete beam column is integrated. The concrete members of the node are not provided with protruding embedded parts or connecting pieces, so that the node is convenient to transport; when the node is assembled, the prefabricated column side wall connecting angle steel is fixed, and support members such as scaffold in the traditional construction are replaced, so that the construction period can be shortened, and the construction cost is saved.
Description
Technical Field
The invention relates to the technical field of assembly type building node connection, in particular to a novel assembly type concrete beam column node.
Background
The assembly type building has the advantages of less field wet operation, high production efficiency, less pollution, resource saving and the like and is widely applied. With the increasing enhancement of economic strength and the continuous progress of science and technology in China, the construction industry in China is undergoing a new development period. The assembly type building is taken as a representative novel building construction mode and is vigorously developed under the support and promotion of national policies. The beam-column connection node plays a crucial role in the fabricated concrete frame structure and is the weakest part of the whole frame structure.
In the existing research of assembling beam-column nodes, the wet connecting node is widely applied in actual engineering, but concrete needs to be poured in situ during construction, the construction process is complex, and the waste of manpower, materials and mechanical use is easily caused. The dry type connecting joint has the advantages of high construction speed, less field wet operation, small environmental pollution and the like, but the surface of the member has the problems of prominent pre-buried steel plates, section steel and the like, and the problem of damage of the pre-buried connecting piece caused by a plurality of uncertain factors in the transportation of the member. If the connection breaks, the component fails, and the economic loss caused thereby is not negligible.
Disclosure of Invention
The invention aims to: in order to solve the defects existing in the background technology, the novel assembly type node is high in construction efficiency, convenient to transport, simple to install, free of protruding connecting pieces and assembled based on the bolts, the connecting steel plates and the angle steel.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the utility model provides a novel assembled concrete beam column node, includes a precast concrete post, a precast concrete beam, fourteen high strength bolts, two angle joints, two connection steel sheet and four built-in fittings, and four built-in fittings set up respectively in precast concrete post and precast concrete beam, and two connection steel sheet pass through high strength bolt to be fixed at the lateral wall of precast concrete post and the upper and lower tip in a left side of precast concrete beam, and two connection steel sheet pass through high strength bolt to be fixed at the lateral wall of precast concrete post and precast concrete beam.
The embedded part is composed of a thin-wall steel pipe, an anchoring reinforcing steel bar and a welding steel plate, and holes are formed in the corresponding positions of the thin-wall steel pipe by the welding steel plate.
The embedded part in the column is arranged in the column of the concrete precast column to form a bolt hole channel; the embedded parts on the upper part and the lower part of the column node are arranged on the upper part and the lower part of the node of the concrete prefabricated column to form bolt channels.
The beam right end embedded part is arranged at the right end of the concrete precast beam to form a vertical bolt hole channel and a transverse bolt hole channel.
And welding the anchoring steel bars in the embedded parts with the contact points of the stressed steel bars of the concrete prefabricated columns and the stressed steel bars of the concrete prefabricated beams.
And the surfaces of the connecting angle steel, the connecting steel plate and the steel material which is in mutual contact with the embedded part are provided with rust removal treatment.
The two connecting angle steels are symmetrically arranged on the top surface and the bottom surface of the right end of the concrete precast beam.
And the two connecting angle steels are provided with first openings, and the high-strength bolts penetrate through the openings and the bolt pore passages to connect the concrete prefabricated columns with the connecting angle steels.
And two ends of the high-strength bolt are respectively provided with a flat pad, a spring pad and a nut.
And the two connecting angle steels are provided with second openings, and the high-strength bolts penetrate through the openings and the bolt pore passages to connect the concrete precast beams with the connecting angle steels.
And the two connecting steel plates are arranged at the joint of the beam column and the concrete precast beam in bilateral symmetry mode.
And the two connecting steel plates are provided with first openings, and the high-strength bolts penetrate through the openings and the bolt pore passages to connect the concrete precast beam with the connecting steel plates.
And the two connecting steel plates are provided with second openings, and the high-strength bolts penetrate through the openings and the bolt pore passages to connect the concrete prefabricated columns with the connecting steel plates.
The opening sizes of the connecting angle steel and the connecting steel plate are the same as the inner diameter of the bolt pore passage.
And grouting treatment is arranged on a gap at the joint surface of the concrete precast column and the concrete precast beam.
After the node assembly is completed, the steel of the exposed parts of the connecting angle steel, the connecting steel plate and the embedded part is subjected to rust prevention and fire prevention treatment.
The invention has the beneficial effects that:
the invention provides a novel assembly type concrete beam-column joint, wherein all the components of the joint are free of embedded parts or connecting parts protruding out of the surface of concrete, so that the damage to the components in the transportation process is reduced. The concrete precast beam and the concrete precast column are connected into a whole through the connecting steel plate and the high-strength bolt, the construction is convenient, the on-site non-wet operation is realized, the stress performance of the node is good, and the design principle of 'strong node and weak component' is met. The connecting angle steel arranged on the top surface and the bottom surface of the right end of the concrete precast beam can replace supporting members such as scaffolds in traditional construction, the construction period is shortened, the manual labor is reduced, and the construction cost is saved. Based on the advantages, the assembly type concrete beam-column joint has a good application prospect.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view illustrating the construction of a precast concrete beam according to the present invention;
FIG. 3 is a schematic view showing the construction of a precast concrete column according to the present invention;
FIG. 4 is a schematic structural diagram of an embedded part at the end of a precast concrete beam according to the present invention;
FIG. 5 is a schematic view of the construction of embedment in the precast concrete column of the present invention;
FIG. 6 is a schematic structural diagram of embedded parts on the upper part and the lower part of a precast concrete column node according to the invention;
FIG. 7 is a schematic view showing the construction of a connecting steel plate according to the present invention;
fig. 8 is a schematic structural view of the angle iron of the present invention.
Wherein: 1-prefabricating a column by concrete; 2-precast concrete beam; 3-high strength bolts; 4-connecting angle steel; 5-connecting steel plates; 6-embedded parts; 6 a-embedded parts at the right end of the beam; 6 b-embedded parts in the column; 6 c-embedded parts at the upper part and the lower part of the column node; 7-thin-walled steel pipe; 8-anchoring the steel bars; 9-welding a steel plate; 10-welding steel plate holes; 11-a bolt hole channel in the concrete prefabricated column; 12-bolt pore canals at the upper part and the lower part of the node of the precast concrete column; 13-a vertical bolt hole channel at the right end of the concrete precast beam; 14-transverse bolt hole channels at the right end of the concrete precast beam; 15-connecting a first opening of the angle steel; 16-connecting a second opening of the angle iron; 17-connecting the steel plate first opening; 18-connecting the second opening of the steel plate; 19-high strength bolt end flat gasket; 20-high strength bolt end spring washer; 21-high strength bolt end nut.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the described embodiments are only a few embodiments of the present invention, and not all embodiments. The invention can be implemented in many different ways, as defined and covered by the claims, and all other embodiments obtained by the person skilled in the art without making any inventive step are within the scope of protection of the invention.
The following description of the embodiments of the present invention is made with reference to the accompanying drawings 1 to 8:
as shown in fig. 1-8, a novel connected node of assembled concrete beam column, including a precast concrete column 1, a precast concrete beam 2, fourteen high strength bolts 3, two angle steel 4, two connecting steel plates 5 and four built-in fittings 6 are constituteed, four built-in fittings 6 include precast concrete beam 2 right-hand member built-in fitting 6a, pre-embedded fitting 6b and node upper and lower part built-in fitting 6c in precast concrete column 1 post, two angle steel 4 fix the right-hand member top surface and the bottom surface at precast concrete column 1's lateral wall and precast concrete beam 2 through high strength bolts 3, two connecting steel plates 5 fix the lateral wall at precast concrete column 1 and precast concrete beam 2 through high strength bolts 3.
The novel assembly type concrete beam column joint factory prefabricating process comprises the following steps:
the embedded part 6 is composed of a thin-wall steel pipe 7, an anchoring steel bar 8 and a welding steel plate 9, a hole 10 is formed in the corresponding position of the welding steel plate 9 on the thin-wall steel pipe, and welding treatment is carried out on the anchoring steel bar 8 in the embedded part and the contact point of the stressed steel bar of the concrete precast column and the stressed steel bar of the concrete precast beam. The embedded part 6b is arranged in the column of the concrete precast column 1 to form a bolt hole channel 11; the embedded part 6c forms a bolt hole channel 12 on the upper part and the lower part of the node of the concrete precast column 1; the embedded parts 6a are arranged at the beam ends of the concrete precast beams 2 to form vertical bolt hole channels 13, and the beam ends of the concrete precast beams 2 form transverse bolt hole channels 14.
The connecting angle steel 4 and the connecting steel plate 5 are provided with holes at the positions of the bolt hole channels of the prefabricated parts, and the size of the holes is the same as the inner diameter of the bolt hole channels.
Specifically, after the precast concrete columns 1 and the precast concrete beams 2 are precast in a factory, the precast concrete columns and the precast concrete beams are maintained according to standards, and are transported to a construction site after reaching the strength standard. The angle steel 4 and the steel plate 5 are cut and perforated in a factory, then derusting the steel, and after being inspected to be qualified, the steel is transported to a construction site.
The novel assembling type concrete beam column joint field construction assembling process comprises the following steps:
the method comprises the following steps: the position of the concrete prefabricated column 1 is fixed, the connecting angle steel 4 is placed at the lower portion of a node of the column, the high-strength connecting bolt 3 is inserted into the bolt hole 12 in the concrete prefabricated column and the first opening 15 of the connecting angle steel 4, the flat pad 19, the spring pad 20 and the nut 21 are placed at two ends of the concrete prefabricated column, the nut 21 is screwed, and the connecting angle steel 4 is fixed on the concrete prefabricated column 1 to form a lap joint platform.
Step two: the concrete precast beam 2 is hoisted to the beam-column joint, two connecting steel plates 5 are respectively placed on the side wall of the beam-column joint, and it is ensured that a first opening 17 and a second opening 18 on the connecting steel plates 5 are aligned with a bolt hole 11 in the column of the concrete precast column 1 and a transverse bolt hole 14 of the concrete precast beam 2 respectively, after the alignment, a high-strength connecting bolt 3 penetrates into the holes, flat pads 19, spring pads 20 and nuts 21 are placed at two ends, and the nuts 21 are screwed down, so that the connection between the beam columns is realized.
Step three: and (3) grouting the gap at the joint surface of the concrete precast column 1 and the concrete precast beam 2.
Step four: the connecting angle steel 4 is placed on the top surface of the right end of the concrete precast beam 2, the high-strength connecting bolt 3 is inserted into the bolt hole 12 in the concrete precast column and then passes through the first opening 15 of the connecting angle steel 4, the flat pad 19, the spring pad 20 and the nut 21 are placed at two ends of the connecting angle steel, the nut 21 is screwed, and at the moment, the connecting angle steel 4 is fixed on the upper portion of the node of the concrete precast column 1.
Step five: after the connecting bolt 3 penetrates through the second opening 16 of the connecting angle steel 4 and the vertical bolt hole 13 of the concrete precast beam, the flat pad 19, the spring pad 20 and the nut 21 are placed at two ends, the nut 21 is screwed, and the assembling of the joint is completed at the moment.
Step six: and carrying out rust prevention and fire prevention treatment on the steel materials of the exposed parts of the connecting angle steel 4, the connecting steel plate 5 and the embedded part 6.
Claims (8)
1. The utility model provides a novel assembled concrete beam column node, includes that a precast concrete post (1), a precast concrete roof beam (2), fourteen high strength bolts (3), two angle connections (4), two connecting steel plate (5) and four built-in fittings (6) constitute, its characterized in that: the embedded parts (6) comprise embedded parts (6a) at the right end of the concrete precast beam (2), embedded parts (6b) in the concrete precast column (1) and embedded parts (6c) at the upper part and the lower part of the node; the connecting angle steel (4) is fixed on the side wall of the node of the concrete precast column (1) and the top surface and the bottom surface of the right end of the concrete precast beam (2) through high-strength bolts (3); and the connecting steel plates (5) are fixed on the side walls of the concrete precast columns (1) and the concrete precast beams (2) through high-strength bolts (3).
2. A novel fabricated concrete beam column joint as set forth in claim 1, wherein: the embedded part (6) is composed of a thin-wall steel pipe (7), an anchoring steel bar (8) and a welding steel plate (9), and the welding steel plate (9) is provided with a hole (10) at the corresponding position of the thin-wall steel pipe (7). The embedded part (6b) is arranged in the column of the concrete precast column (1) to form a bolt hole channel (11); the embedded parts (6c) are arranged on the upper parts and the lower parts of the nodes of the concrete precast columns (1) to form bolt pore canals (12). The embedded part (6a) is arranged at the right end of the concrete precast beam (2) to form a vertical bolt hole (13) and a transverse bolt hole (14). And (3) welding the anchoring steel bars (8) in the embedded parts (6) with the contact points of the stressed steel bars of the concrete precast columns (1) and the concrete precast beams (2).
3. A novel fabricated concrete beam column joint as set forth in claim 1, wherein: and the surfaces of the connecting angle steel (4), the connecting steel plate (5) and the steel material which is in mutual contact with the embedded part (6) are provided with rust removal treatment. The two connecting angle steels (4) are symmetrically arranged on the top surface and the bottom surface of the right end of the concrete precast beam (2). Two angle steel (4) all are equipped with first trompil (15), and high strength bolt (3) pass trompil (15) and bolt pore (11) and link to each other precast concrete post (1) and angle steel (4). Two angle steel (4) all are equipped with second trompil (16), and high strength bolt (3) pass trompil (16) and bolt pore (13) and link to each other angle steel (4) with precast concrete roof beam (2).
4. A novel fabricated concrete beam column joint as set forth in claim 1, wherein: and two ends of the high-strength bolt (3) are respectively provided with a flat pad (19), a spring pad (20) and a nut (21).
5. A novel fabricated concrete beam column joint as set forth in claim 1, wherein: the two connecting steel plates (5) are arranged at the joint of the beam column and the concrete precast column (1) and the side wall of the concrete precast beam (2) in bilateral symmetry. Two connection steel sheet (5) all are equipped with first trompil (17), and high strength bolt (3) pass trompil (17) and bolt pore (12) and link to each other precast concrete roof beam (2) and connection steel sheet (5). The two connecting steel plates (5) are provided with second openings (18), and the high-strength bolts (3) penetrate through the openings (18) and the bolt hole channels (14) to connect the concrete prefabricated column (1) with the connecting steel plates (5).
6. A novel fabricated concrete beam column joint as set forth in claim 1, wherein: the opening sizes of the connecting angle steel (4) and the connecting steel plate (5) are the same as the inner diameter of the bolt hole channel.
7. A novel fabricated concrete beam column joint as set forth in claim 1, wherein: and grouting treatment is arranged on a gap at the joint surface of the concrete precast column (1) and the concrete precast beam (2).
8. A novel fabricated concrete beam column joint as set forth in claim 1, wherein: after the node assembly is completed, the steel of the exposed parts of the connecting angle steel (4), the connecting steel plate (5) and the embedded part (6) is subjected to rust prevention and fire prevention treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110797904.1A CN113389271A (en) | 2021-07-15 | 2021-07-15 | Novel assembled concrete beam column node |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110797904.1A CN113389271A (en) | 2021-07-15 | 2021-07-15 | Novel assembled concrete beam column node |
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| CN113389271A true CN113389271A (en) | 2021-09-14 |
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| CN202110797904.1A Pending CN113389271A (en) | 2021-07-15 | 2021-07-15 | Novel assembled concrete beam column node |
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2021
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