CN212317149U - Prefabricated concrete frame beam-column dry connection node - Google Patents
Prefabricated concrete frame beam-column dry connection node Download PDFInfo
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- CN212317149U CN212317149U CN202021585289.5U CN202021585289U CN212317149U CN 212317149 U CN212317149 U CN 212317149U CN 202021585289 U CN202021585289 U CN 202021585289U CN 212317149 U CN212317149 U CN 212317149U
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Abstract
本实用新型公开一种装配式混凝土框架梁柱干式连接节点，造价低、构造简单、施工方便、抗震性能好。本实用新型装配式混凝土框架梁柱干式连接节点，包括预制混凝土柱(1)和预制混凝土梁(2)，还包括背面与所述预制混凝土柱(1)连接侧固定连接的柱侧接钢板(4)和背面与所述预制混凝土梁(2)连接端固定连接的梁端连接钢板(5)；所述柱侧接钢板(4)与梁端连接钢板(5)正面相对，可拆式固定连接。优选地，所述柱侧接钢板(4)背面设有锚固筋(3)，所述锚固筋(3)一端与柱侧接钢板(4)背面固定连接，其余部分预埋于所述预制混凝土柱(1)内。
This utility model discloses a prefabricated concrete frame beam-column dry connection node, which has low cost, simple structure, convenient construction, and good seismic performance. The prefabricated concrete frame beam-column dry connection node of this utility model includes a precast concrete column (1) and a precast concrete beam (2), and further includes a column-side connecting steel plate (4) fixedly connected to the connecting side of the precast concrete column (1) on its back and a beam-end connecting steel plate (5) fixedly connected to the connecting end of the precast concrete beam (2) on its back; the column-side connecting steel plate (4) and the beam-end connecting steel plate (5) face each other and are detachably fixedly connected. Preferably, the back of the column-side connecting steel plate (4) is provided with an anchor bar (3), one end of the anchor bar (3) is fixedly connected to the back of the column-side connecting steel plate (4), and the remaining part is pre-embedded in the precast concrete column (1).
Description
Technical Field
The utility model belongs to the technical field of concrete frame structure, especially an assembled concrete frame beam column does formula connected node that cost is low, power consumption ability is strong, construction convenience, anti-seismic performance are good.
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
An object of the utility model is to provide an assembled concrete frame beam column does formula connected node, the cost is low, simple structure, construction convenience, anti-seismic performance are good.
Realize the utility model discloses the technical solution of purpose does:
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 utility model, it is showing the advantage and is:
1. the cost is low: the utility model adopts some short waste steel bars to make anchoring bars, and can make full use of waste leftover materials of some steel bars, thereby achieving the purposes of saving materials and reducing 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 present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is the utility model discloses assembled concrete frame beam column trunk formula connected node's schematic diagram.
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 assembled concrete frame beam column dry type connection node of the present invention comprises a precast concrete column 1 and a precast concrete beam 2, and further comprises a column side connection steel plate 4 whose back side is fixedly connected with the connection side of the precast concrete column 1, and a beam end connection steel plate 5 whose back side is 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 utility model discloses the reinforcing bar scrap angle that produces in the make-up process of make full use of prefabricated component makes the anchor muscle, and anchor muscle manufacture process is comparatively simple to the anchor dependable performance adopts the dry-type to connect simultaneously, can be effectual overcome wet-type joining region reinforcing bar configuration comparatively closely level, difficult problems such as concrete placement quality is difficult to control.
Claims (6)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021585289.5U CN212317149U (en) | 2020-08-04 | 2020-08-04 | Prefabricated concrete frame beam-column dry connection node |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021585289.5U CN212317149U (en) | 2020-08-04 | 2020-08-04 | Prefabricated concrete frame beam-column dry connection node |
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| CN212317149U true CN212317149U (en) | 2021-01-08 |
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| CN202021585289.5U Active CN212317149U (en) | 2020-08-04 | 2020-08-04 | Prefabricated concrete frame beam-column dry connection node |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111851737A (en) * | 2020-08-04 | 2020-10-30 | 扬州大学 | Prefabricated concrete frame beam-column dry connection joint |
| CN115749395A (en) * | 2022-12-19 | 2023-03-07 | 安徽扬子安防股份有限公司 | Splicing structure for concrete blocks of business depot |
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2020
- 2020-08-04 CN CN202021585289.5U patent/CN212317149U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111851737A (en) * | 2020-08-04 | 2020-10-30 | 扬州大学 | Prefabricated concrete frame beam-column dry connection joint |
| CN115749395A (en) * | 2022-12-19 | 2023-03-07 | 安徽扬子安防股份有限公司 | Splicing structure for concrete blocks of business depot |
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