CN111851737A - Assembled concrete frame beam column trunk type connecting joint - Google Patents
Assembled concrete frame beam column trunk type connecting joint Download PDFInfo
- Publication number
- CN111851737A CN111851737A CN202010769789.2A CN202010769789A CN111851737A CN 111851737 A CN111851737 A CN 111851737A CN 202010769789 A CN202010769789 A CN 202010769789A CN 111851737 A CN111851737 A CN 111851737A
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- column
- steel plate
- connecting steel
- fixedly connected
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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
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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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- 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 beam-column dry type connecting node of an assembled concrete frame, which has the advantages of low manufacturing cost, simple structure, convenience in construction and good anti-seismic performance. The invention relates to an assembled concrete frame beam column dry type connecting node, which comprises a precast concrete column (1) and a precast concrete beam (2), and also comprises a column side connecting steel plate (4) the back of which is fixedly connected with the connecting side of the precast concrete column (1) and a beam end connecting steel plate (5) the back of which is fixedly connected with the connecting end of the precast concrete beam (2); the side connecting steel plate (4) of the column is opposite to the front side of the beam end connecting steel plate (5) and is detachably and fixedly connected. Preferably, the back of the column side connecting steel plate (4) is provided with an anchoring rib (3), one end of the anchoring rib (3) is fixedly connected with the back of the column side connecting steel plate (4), and the rest part of the anchoring rib is pre-buried in the precast concrete column (1).
Description
Technical Field
The invention belongs to the technical field of concrete frame structures, and particularly relates to an assembled concrete frame beam-column dry type connecting node which is low in manufacturing cost, strong in energy consumption capability, convenient to construct and good in anti-seismic performance.
Background
In order to meet the requirement of the anti-seismic performance of the assembled concrete frame structure, the problem of connection reliability between the prefabricated columns and the prefabricated beams is generally solved through related constructional measures.
The existing known dry connecting structure of the precast concrete beam column comprises pre-embedded section steel in the precast beam and the precast column, and the precast beam and the precast column at the later stage are connected by the externally leaked pre-embedded section steel in a bolt or welding mode; or through reserving the pore from prefabricated post and prefabricated beam, when the prefabricated beam is assembled, penetrate the prestressed steel strand through the pore, through to steel strand stretch-draw, to prefabricated beam and prefabricated post construction pretightning force, realize connecting between the beam column, or set up the bracket on the prefabricated post to reserve the pore on bracket and prefabricated beam, shelve the prefabricated beam on the bracket of prefabricated post, penetrate the reinforcing bar through the pore that reserves, realize connecting between the prefabricated beam column.
According to the known connection structure, the embedded section steel is connected by bolts, and the stress bars and the stirrups of the precast beam column after the section steel is embedded are also required to be configured according to the design, so that the construction of a steel reinforcement framework is inconvenient due to the internally configured section steel, and the construction efficiency is seriously reduced;
reserving a hole channel for the precast beam column, and reserving the hole channel for the precast beam column with higher requirement through a node assembled by penetrating a prestressed tendon and applying prestress to the prestressed tendon in the later period;
the bracket is reserved for the prefabricated column, the prefabricated beam is placed on the bracket column, the reserved hole is adopted to penetrate the reinforcing steel bar to realize the assembled node, the anchoring performance of the reinforcing steel bar cannot meet the requirement frequently, and the phenomenon that the anchoring reinforcing steel bar is pulled out frequently occurs under the action of earthquake load.
In summary, the prior art has the following problems: the prefabricated concrete frame beam column connecting joint is high in manufacturing cost, the shearing resistance of the beam column joint surface is not strong enough, construction is inconvenient, and the anti-seismic performance is not good enough.
Disclosure of Invention
The invention aims to provide a beam-column dry type connecting node of an assembled concrete frame, which has the advantages of low manufacturing cost, simple structure, convenience in construction and good seismic performance.
The technical solution for realizing the purpose of the invention is as follows:
a beam-column dry type connecting node of an assembled concrete frame comprises a precast concrete column 1 and a precast concrete beam 2, and also comprises a column side connecting steel plate 4 of which the back is fixedly connected with the connecting side of the precast concrete column 1 and a beam end connecting steel plate 5 of which the back is fixedly connected with the connecting end of the precast concrete beam 2; the column side connecting steel plate 4 is opposite to the beam end connecting steel plate 5 in front and is detachably and fixedly connected with the beam end connecting steel plate.
Preferably, the back of the column side connecting steel plate 4 is provided with an anchoring rib 3, one end of the anchoring rib 3 is fixedly connected with the back of the column side connecting steel plate 4, and the rest part of the anchoring rib is pre-buried in the precast concrete column 1.
Compared with the prior art, the invention has the following remarkable advantages:
1. the cost is low: the invention adopts some shorter waste reinforcing steel bars to manufacture the anchoring ribs, can fully utilize waste scraps of some reinforcing steel bars, and achieves the purposes of saving materials and reducing the manufacturing cost;
2. the energy consumption capability is strong: the prefabricated beam and the prefabricated column are connected by adopting the steel plate, and under the action of earthquake load, the energy consumption capacity of the beam-column joint can be enhanced by the friction between the steel plate and the steel plate;
3. the construction is convenient: the connection between the prefabricated columns and the prefabricated beam is realized only by aligning the connecting steel plate bolt holes on the prefabricated beam with the connecting steel plate bolt holes on the prefabricated column and then penetrating and screwing bolts, so that the operation is simple, and the construction speed of on-site assembly can be improved;
4. the earthquake resistance is good: the precast beam stress ribs and the connecting steel plates are fixedly connected in a pier head mode, then the precast beams and the precast columns are connected through bolts, anchoring measures are reliable, the shock resistance of the beams and the columns can be fully exerted, and the shock resistance of the whole structure is improved.
5. Easy repair: adopt bolted connection between precast beam and the precast column, if take place the spontaneous combustion calamity, can carry out the change of prefabricated component.
The invention is described in further detail below with reference to the figures and the detailed description.
Drawings
Fig. 1 is a schematic structural view of a beam-column dry type connection node of an assembly type concrete frame according to the present invention.
Fig. 2 is a schematic view of a single structure of the anchoring rib and the column side connecting steel plate in fig. 1.
Fig. 3 is a schematic structural view of the beam end connection steel plate in fig. 1.
Fig. 4 is a detailed view of the detachable fixed connection between the side steel plate of the pillar and the beam end connecting steel plate in fig. 1.
Fig. 5 is a schematic view of reinforcing bars at the pier heads of the end parts of the precast girders in fig. 1.
In the figure, a precast concrete column 1, a precast concrete beam 2, an anchoring rib 3, a T-shaped steel bar 31, an L-shaped steel bar 32, a nut 33, an inter-plate connecting bolt 34, a column side connecting steel plate 4, a column plate through hole 41, a beam end connecting steel plate 5, a steel bar hole 51, a beam plate through hole 52 and a pier head steel bar 6.
Detailed Description
As shown in fig. 1, the beam-column dry type connection node of the fabricated concrete frame of the invention comprises a precast concrete column 1 and a precast concrete beam 2, and further comprises a column side connection steel plate 4 with the back side fixedly connected with the connection side of the precast concrete column 1 and a beam end connection steel plate 5 with the back side fixedly connected with the connection end of the precast concrete beam 2;
the column side connecting steel plate 4 is opposite to the beam end connecting steel plate 5 in front and is detachably and fixedly connected with the beam end connecting steel plate.
Preferably, the back of the column side connecting steel plate 4 is provided with an anchoring rib 3, one end of the anchoring rib 3 is fixedly connected with the back of the column side connecting steel plate 4, and the rest part of the anchoring rib is pre-buried in the precast concrete column 1.
As shown in fig. 2, the anchoring rib 3 includes a T-shaped rib 31, at least two L-shaped ribs 32 and a nut 33;
one end of the nut 33 is welded with the back of the column side connecting steel plate 4, and a column plate through hole 41 is formed in the column side connecting steel plate 4 corresponding to the nut 33;
the straight end of the T-shaped steel bar 31 is in threaded fit connection with the nut 33;
the at least two L-shaped steel bars 32 are uniformly distributed on the periphery of the T-shaped steel bar 31, and one end of each L-shaped steel bar is welded with the outer side of the nut 33;
the T-shaped steel bar 31, the L-shaped steel bar 32 and the nut 33 are all pre-embedded in the precast concrete column 1.
The T-shaped steel bar 31 and the L-shaped steel bar 32 are arranged on the anchoring bar 3, so that the anchoring performance between the connecting steel plate and the prefabricated column can be enhanced, and the reliability of node connection is enhanced.
After the anchoring ribs 3 and the connecting steel plates 4 are connected, the anchoring ribs 3 are embedded in the prefabricated columns in advance, and T-shaped anchoring ends and L-shaped anchoring ends are arranged at the anchoring ends of the anchoring ribs, so that the anchoring performance of the anchoring ribs is enhanced.
The length of the anchoring rib 3 is slightly smaller than the sectional dimension of the prefabricated column.
As shown in fig. 3, the beam-end connecting steel plate 5 is provided with a beam-plate through hole 52;
when the beam-end connecting steel plate 5 is opposite to the front surface of the beam-end connecting steel plate 4, the beam-plate through hole 52 is communicated with the column-plate through hole 41, and the column-end connecting steel plate 4 and the beam-end connecting steel plate 5 are detachably and fixedly connected through the threaded matching of the inter-plate connecting bolt 34 and the nut 33. The detailed structure is shown in fig. 4.
The prefabricated column 1 and the prefabricated beam 2 are connected by adopting the beam end connecting steel plate 5 to be opposite to the front side of the column side connecting steel plate 4, and the energy consumption capacity of the node can be effectively improved by mutual friction between the steel plates under the action of earthquake load in a mode of detachably and fixedly connecting the connecting bolts 34 and the nuts 33 between the plates in a threaded fit manner.
During assembly, the connection between the precast column 1 and the precast beam 2 can be realized only by aligning the upper beam plate through hole 52 of the connecting steel plate 5 at the end part of the precast beam 2 with the column plate through hole 41 of the connecting steel plate 4 on the precast column anchoring rib 3 and screwing the connecting bolt 34 between the plates, so that the wet operation of a construction site can be greatly reduced, unnecessary water resource waste is avoided, and the natural environment is protected.
As shown in fig. 3, the beam-end connecting steel plates 5 are provided with reinforcement holes 51 into which the end reinforcing bars 6 of the precast concrete beam 2 are inserted and fixed.
As shown in fig. 5, one end of the stress bar 6 is inserted into the bar hole 51 and is processed by heading to be fixed to the beam-end connecting steel plate 5.
The vertical stress bar 6 in the upper and lower parts of the beam is fixedly connected with the steel plate 5 in a pier head mode, so that the stress bar 6 is more reliably and stably connected with the beam end connecting steel plate 5.
The upper and lower stressed steel bars 6 of the precast beam 2 are slightly longer than the precast beam 2.
The T-shaped and L-shaped anchoring ribs are made of waste reinforcing steel bar scraps generated in the process of manufacturing the prefabricated parts, so that the purposes of saving materials and reducing the manufacturing cost are achieved; the concrete construction method of the node is detailed as follows: the connecting steel plates are welded on the anchoring ribs through nuts, bolt holes corresponding to the nuts are formed in the connecting steel plates, the anchoring ribs with the connecting steel plates are embedded in the precast columns, the connecting steel plates on the precast beams are connected with the precast beams through pier head processing of longitudinal ribs on the upper portion and the lower portion of the precast beams, bolt holes are formed in the connecting steel plates on the precast beams, during installation, the connecting steel plates on the precast columns are aligned with the bolt holes of the connecting steel plates on the precast beams, and bolts are screwed in to form the precast assembled concrete frame beam-column dry type connecting node. The invention makes full use of the waste angle of the steel bar produced in the process of manufacturing the prefabricated part to manufacture the anchoring bar, the process of manufacturing the anchoring bar is simpler, the anchoring performance is reliable, and meanwhile, the invention adopts dry connection, and can effectively overcome the problems that the steel bar configuration of a wet connection area is denser, the concrete pouring quality is difficult to control and the like.
Claims (6)
1. The utility model provides an assembled concrete frame beam column does formula connected node, includes precast concrete post (1) and precast concrete roof beam (2), its characterized in that:
the prefabricated concrete column is characterized by also comprising a column side connecting steel plate (4) with the back side fixedly connected with the connecting side of the prefabricated concrete column (1) and a beam end connecting steel plate (5) with the back side fixedly connected with the connecting end of the prefabricated concrete beam (2);
the side connecting steel plate (4) of the column is opposite to the front side of the beam end connecting steel plate (5) and is detachably and fixedly connected.
2. The beam-column dry-type connection node according to claim 1, wherein:
the back of the column side connection steel plate (4) is provided with an anchoring rib (3), one end of the anchoring rib (3) is fixedly connected with the back of the column side connection steel plate (4), and the rest part of the anchoring rib is pre-buried in the precast concrete column (1).
3. The beam-column dry-type connection node according to claim 2, wherein:
the anchoring rib (3) comprises a T-shaped reinforcing steel bar (31), at least two L-shaped reinforcing steel bars (32) and a nut (33);
one end of the nut (33) is welded with the back of the column side connecting steel plate (4), and a column plate through hole (41) is formed in the column side connecting steel plate (4) at a position corresponding to the nut (33);
the straight line end of the T-shaped steel bar (31) is in threaded fit connection with the nut (33);
the at least two L-shaped steel bars (32) are uniformly distributed on the periphery of the T-shaped steel bar (31), and one end of each L-shaped steel bar is welded with the outer side of the nut (33);
the T-shaped steel bars (31), the L-shaped steel bars (32) and the nuts (33) are all pre-embedded in the precast concrete column (1).
4. The beam-column dry-type connection node according to claim 3, wherein:
the beam end connecting steel plate (5) is provided with a beam plate through hole (51);
when the beam end connecting steel plate (5) is opposite to the front surface of the beam end connecting steel plate (4), the beam plate through hole (52) is communicated with the column plate through hole (41), and the beam end connecting steel plate (4) is detachably and fixedly connected with the beam end connecting steel plate (5) through the threaded fit of the connecting bolt (34) and the nut (33) between the plates.
5. A beam-column dry-type connection node according to any one of claims 1 to 4, wherein:
and the beam end connecting steel plate (5) is provided with a reinforcing steel bar hole (51) for inserting and fixing a stress bar (6) at the end part of the precast concrete beam (2).
6. The beam-column dry-type connection node according to claim 5, wherein: one end of the stress rib (6) is inserted into the reinforcement hole (51) to be processed by pier heading so as to be fixed on the beam end connecting steel plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010769789.2A CN111851737A (en) | 2020-08-04 | 2020-08-04 | Assembled concrete frame beam column trunk type connecting joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010769789.2A CN111851737A (en) | 2020-08-04 | 2020-08-04 | Assembled concrete frame beam column trunk type connecting joint |
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| Publication Number | Publication Date |
|---|---|
| CN111851737A true CN111851737A (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010769789.2A Pending CN111851737A (en) | 2020-08-04 | 2020-08-04 | Assembled concrete frame beam column trunk type connecting joint |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113718948A (en) * | 2021-08-27 | 2021-11-30 | 浙大城市学院 | Prefabricated concrete structure folding type beam column connecting node and construction method |
| CN116427543A (en) * | 2023-04-14 | 2023-07-14 | 中建安装集团有限公司 | Profile steel-concrete assembled petrochemical pipe gallery structure |
-
2020
- 2020-08-04 CN CN202010769789.2A patent/CN111851737A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113718948A (en) * | 2021-08-27 | 2021-11-30 | 浙大城市学院 | Prefabricated concrete structure folding type beam column connecting node and construction method |
| CN113718948B (en) * | 2021-08-27 | 2022-06-17 | 浙大城市学院 | Prefabricated concrete structure folding type beam column connecting node and construction method |
| CN116427543A (en) * | 2023-04-14 | 2023-07-14 | 中建安装集团有限公司 | Profile steel-concrete assembled petrochemical pipe gallery structure |
| CN116427543B (en) * | 2023-04-14 | 2023-11-24 | 中建安装集团有限公司 | Profile steel-concrete assembled petrochemical pipe gallery structure |
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