CN111877547A - Assembled concrete beam column trunk type connecting joint - Google Patents
Assembled concrete beam column trunk type connecting joint Download PDFInfo
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- CN111877547A CN111877547A CN202010731541.7A CN202010731541A CN111877547A CN 111877547 A CN111877547 A CN 111877547A CN 202010731541 A CN202010731541 A CN 202010731541A CN 111877547 A CN111877547 A CN 111877547A
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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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Abstract
The invention provides an assembled concrete beam-column dry type connecting node which comprises a precast concrete column, a precast concrete beam and a hidden bracket, wherein a column side screw sleeve is pre-embedded in the upper part of the connecting part of the precast concrete column and the precast concrete beam, an inwards concave rectangular shear groove is arranged in the lower part of the connecting part, a high-strength bolt is pre-embedded in the rectangular shear groove, one end of the hidden bracket is inserted into the shear groove, and the hidden bracket is fixed on the high-strength bolt through a nut; the bottom of the connecting end of the precast concrete column is provided with a rectangular lap joint opening, a beam side screw sleeve is embedded in the side wall of the rectangular lap joint opening, the concrete beam is fixed on a hidden bracket by adopting the connection of a beam bottom high-strength bolt and the beam side screw sleeve, the end part of the precast concrete beam is provided with a beam top embedded part, and the beam top embedded part is connected with a column side screw sleeve on the upper part of the precast concrete column through a column side high-strength bolt. The invention does not need cast-in-place concrete, has simple structure and quick construction, can reduce the damage of the main body component, is convenient to replace after the earthquake and the like.
Description
The technical field is as follows:
the invention relates to an assembly type concrete beam and column trunk type connecting node, and belongs to the technical field of structural engineering.
Background art:
the prefabricated concrete structure is one of important modes of building industrialization, is combined with informatization and industrialization, and is a construction mode adopting fine design, industrial production and intelligent management. Compared with a cast-in-place concrete structure, the construction method has the advantages of greatly reducing construction waste, improving labor productivity, being high in construction speed and short in construction period, reducing construction cost to a great extent and having remarkable comprehensive economic benefit.
The main structural components of the fabricated frame structure system comprise prefabricated columns, prefabricated beams and prefabricated floor slabs, the connection mode of the columns, the beams and the slabs is the fundamental difference between the fabricated structure and a cast-in-place concrete structure, the form of the columns, the beams and the slabs determines the classification of the fabricated structure, and the performance of the beams and the slabs directly determines the overall performance of the structure. Among them, the beam-column node occupies a crucial position in the frame structure system.
At present, most of the existing fabricated frame beam column nodes are in wet connection, and the defects of complex rib arrangement, more working procedures, long maintenance period and the like exist. The widely applied dry type connection is prestress connection, and the problems of prestress relaxation, low construction efficiency, poor energy consumption capability and the like exist. Therefore, the scheme of the connecting node of the assembled reinforced concrete frame beam column with high efficiency, rapidness and reliable performance needs to be developed urgently so as to fully exert the advantages of the assembled structure.
Disclosure of Invention
The technical problem is as follows:
in order to solve the technical problems, the invention provides an assembly type concrete beam and column trunk type connecting node. The connecting structure is used for splicing the prefabricated column and the prefabricated beam together through the hidden bracket and the beam top embedded part. The hidden bracket can provide a strong anti-shearing capability for the node while providing accurate positioning for hoisting of the concrete beam. The beam top embedded part provides stronger bending resistance for the node. In the scheme, the assembly of the beam column joint adopts high-strength bolts, so that the construction is convenient and fast, and the performance is reliable.
The technical scheme is as follows:
the invention relates to an assembled concrete beam-column dry type connecting node which comprises a precast concrete column, a precast concrete beam and a hidden bracket, wherein the precast concrete column is positioned on the precast concrete column, a column side screw sleeve is pre-embedded at the upper part of the precast concrete column and the connecting part of the precast concrete column and the precast concrete beam, an inwards concave rectangular shear groove is arranged at the lower part of the precast concrete column, a high-strength bolt is pre-embedded in the rectangular shear groove, one end of the hidden bracket is inserted into the shear groove, and the hidden bracket is fixed on the high-strength bolt through a nut; and the prefabricated concrete beam is provided with a rectangular lap joint opening at the bottom at the connecting end of the prefabricated concrete beam and the prefabricated concrete column, the concrete beam is fixed on the hidden bracket by adopting the connection of the beam bottom high-strength bolt and the beam side screw sleeve at the side wall of the rectangular lap joint opening, the end part of the prefabricated concrete beam is provided with a beam top embedded part, a concrete groove is arranged behind the screw hole of the beam top embedded part, and the beam top embedded part is connected with the column side screw sleeve on the upper part of the prefabricated concrete column through a column side high-strength bolt.
The fabricated concrete beam column dry type connecting node is characterized in that an anti-pulling end plate is arranged at one end, embedded into concrete, of the high-strength bolt.
The assembled concrete beam and column trunk type connecting joint is characterized in that the beam top embedded part and the beam side screw sleeve are connected with a reinforcing mesh of the precast concrete beam.
The assembled concrete beam and column trunk type connecting joint is characterized in that screw holes are reserved in the beam top embedded parts and respectively correspond to the column side screw sleeves one by one.
Assembled concrete beam column dry formula connected node, the width and the beam-bottom overlap joint mouth width of dark bracket are unanimous, and the length of dark bracket is slightly good at beam-bottom overlap joint mouth length, and the groove that shears of its salient insertion concrete column side, the screw is all reserved at the both ends of dark bracket, corresponds with high strength bolt and beam-bottom high strength bolt one-to-one respectively.
The fabricated concrete beam column dry type connecting node is characterized in that the hidden bracket is inserted into a shear groove on the side of the precast concrete column, a sealing plate is arranged at a position where the lower surface of the hidden bracket is in contact with concrete, and the shear force on the shear rib of the hidden bracket is uniformly transmitted to the precast concrete column.
Has the advantages that: the invention provides an assembly type concrete beam column trunk type connecting node which is simple in structure, few in accessories, convenient and fast to assemble and reliable in performance. One end of the hidden bracket is inserted into the shear groove on the side surface of the prefabricated column, so that on one hand, sufficient shear resistance is provided for the node, and on the other hand, positioning assistance is provided for hoisting of the prefabricated beam. The beam top embedded part is connected with the concrete column and the reinforcing steel bar net in the beam through high-strength bolts, so that the integral bending resistance of the node is greatly improved. The assembly of beam column node only needs to adopt high strength bolt fastening and apply prestressing force, and accessories such as prefabricated post, precast beam, dark bracket are all prefabricated in the mill, and the construction is swift, the wholeness can be reliable. Based on the advantages, the assembly type concrete beam and column dry type connecting scheme has a good application prospect.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of an exploded structure of the present invention;
fig. 3 is a schematic structural view of a precast concrete beam of the present invention;
FIG. 4 is a schematic structural view of a precast concrete column of the present invention;
FIG. 5 is a schematic view of the structure of the dark corbel of the present invention;
FIG. 6 is a schematic structural view of a beam top embedment of the present invention;
in the figure: the prefabricated concrete column comprises a prefabricated concrete column 1, a prefabricated concrete beam 2, a hidden bracket 3, a beam top embedded part 4, a beam bottom high-strength bolt 5, a beam side screw sleeve 6, a high-strength bolt 7, a nut 8, a column side screw sleeve 9 and a column side high-strength bolt 10.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by persons skilled in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1 to 6, the fabricated concrete beam-column trunk type connection node of the present invention includes a precast concrete column 1, a precast concrete beam 2, and a hidden bracket 3; the concrete column 1 is connected with the precast concrete beam 2, a high-strength bolt 7 and a column side screw sleeve 9 are embedded in advance, and an anti-pulling end plate is arranged at one end, embedded into concrete, of the high-strength bolt 7. The position of the side surface of the precast concrete column 1, which is provided with the hidden bracket 3, is provided with an inwards concave rectangular shear groove. One end of the steel hidden bracket 3 is inserted into the shear resistant groove, and the hidden bracket is fixed on the concrete column through a nut. The beam bottom of the connecting end of the concrete beam 2 is provided with a rectangular overlapping opening, a beam side screw sleeve 6 is embedded in the side wall of the rectangular overlapping opening, a beam bottom high-strength bolt 5 matched with the beam side screw sleeve is adopted, and the precast concrete beam is fixed on the hidden bracket 3. The end part of the precast concrete beam 2 is provided with a beam top embedded part 4, the beam top embedded part 4 is connected with a reinforcing mesh of the beam, a concrete groove is arranged behind a screw hole of the beam top embedded part 4, so that the fastening operation of a bolt is convenient, the beam top embedded part 4 is connected with a column side screw sleeve 9 on the upper part of the precast concrete column through a high-strength bolt 10, and sufficient bending resistance is provided for the beam column node.
Screw holes are reserved in the beam top embedded part 4 and correspond to the screw sleeves 9 on the column side one by one respectively. The width of the hidden bracket 3 is consistent with the width of the lap joint opening at the bottom of the beam, the length of the hidden bracket is slightly longer than that of the lap joint opening at the bottom of the beam, and the protruding part of the hidden bracket is inserted into the shear groove on the side surface of the concrete column. Screw holes are reserved at two ends of the hidden bracket 3 and respectively correspond to the high-strength bolts 7 and the high-strength bolts 5 at the beam bottom one by one.
The hidden bracket 3 is inserted into the shear groove on the side of the concrete column, and a sealing plate is arranged at the contact part of the lower surface of the hidden bracket and the precast concrete, so that the shearing force on the shear rib of the hidden bracket is uniformly transmitted to the precast concrete column.
The material of the hidden bracket 3 and the beam top embedded part 4 is steel or alloy material with higher bearing capacity. The beam bottom high-strength bolt 5, the beam side screw sleeve 6, the high-strength bolt 7, the nut 8, the column side screw sleeve 9 and the column side high-strength bolt 10 are all made of high-strength materials.
And the beam top embedded part 4 and the beam side screw sleeve 6 are connected with beam column steel bars.
By combining the assembly type concrete beam column dry type connecting scheme, the dark corbels, the shear grooves and the high-strength bolts and nuts are matched, so that the nodes have high shear resistance. The combination of the beam top embedded part, the high-strength bolt and the screw sleeve enables the beam column joint to have strong bending resistance and tensile resistance. In the connection scheme provided by the invention, the precast concrete column, the beam and the hidden corbel can be precast off-site, only the high-strength bolt and the nut need to be fastened for on-site assembly, and the process is simple, convenient and quick to operate.
The above-described specific implementation operation method, the technical solutions and the advantages of the present invention are further described in detail, it should be understood that the above-described specific implementation mode of the present invention should be included in the scope of the present invention, and any modifications, equivalent substitutions, improvements, and the like, which are within the spirit and principle of the present invention, should be made.
Claims (6)
1. The utility model provides an assembled concrete beam column does formula connected node, includes precast concrete post (1), precast concrete beam (2), dark bracket (3), its characterized in that: the upper part of the connecting part of the prefabricated concrete column (1) and the prefabricated concrete beam (2) is embedded with a column side screw sleeve (9), the lower part of the connecting part is provided with an inwards concave rectangular shear groove, a high-strength bolt (7) is embedded in the rectangular shear groove, one end of the hidden bracket (3) is inserted into the shear groove, and the hidden bracket (3) is fixed on the high-strength bolt (7) through a nut (8); be located precast concrete roof beam (2) on, at its link with precast concrete post (1), the bottom is provided with the rectangle overlap joint mouth to at the pre-buried roof beam side screw sleeve (6) of rectangle overlap joint mouth lateral wall, adopt the connection of roof beam bottom high-strength bolt (5) and roof beam side screw sleeve (6) to fix concrete roof beam (2) on dark bracket (3), precast concrete roof beam (2) tip is equipped with roof beam built-in fitting (4), is equipped with the concrete recess behind roof beam built-in fitting (4) screw, roof beam built-in fitting (4) are connected through post side high-strength bolt (10) with post side screw sleeve (9) on precast concrete post (1) upper portion.
2. The fabricated concrete beam-column dry-type connection node of claim 1, wherein: and an anti-pulling end plate is arranged at one end of the high-strength bolt (7) embedded in the concrete.
3. The fabricated concrete beam-column dry-type connection node of claim 1, wherein: the beam top embedded part (4) and the beam side screw sleeve (6) are connected with a reinforcing mesh of the precast concrete beam.
4. The fabricated concrete beam-column dry-type connection node of claim 1, wherein: screw holes are reserved in the beam top embedded part (4) and correspond to the column side screw sleeves (9) one by one.
5. The fabricated concrete beam-column dry-type connection node of claim 1, wherein: the width of dark bracket (3) is unanimous with beam-bottom overlap joint mouth width, and the length of dark bracket (3) is slightly good at beam-bottom overlap joint mouth length, and the groove that shears of its salient insertion concrete column side, the screw is all reserved at the both ends of dark bracket, respectively with high strength bolt (7) and beam-bottom high strength bolt (5) one-to-one.
6. The fabricated concrete beam-column dry-type connection node of claim 1, wherein: the hidden bracket (3) is inserted into the shear groove on the side of the precast concrete column, and a sealing plate is arranged at the position where the lower surface of the hidden bracket is contacted with the concrete, so that the shearing force on the shear rib of the hidden bracket is uniformly transferred to the precast concrete column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010731541.7A CN111877547B (en) | 2020-07-27 | 2020-07-27 | Assembled concrete beam column trunk type connecting joint |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010731541.7A CN111877547B (en) | 2020-07-27 | 2020-07-27 | Assembled concrete beam column trunk type connecting joint |
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| CN111877547A true CN111877547A (en) | 2020-11-03 |
| CN111877547B CN111877547B (en) | 2022-03-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113047430A (en) * | 2021-04-07 | 2021-06-29 | 西安建筑科技大学 | Assembled concrete frame structure cross tenon formula vertical bolted connection node |
| CN114960935A (en) * | 2022-01-13 | 2022-08-30 | 甘肃农业大学 | Post-earthquake function recoverable PC frame beam-column connecting node |
| CN115492240A (en) * | 2022-10-25 | 2022-12-20 | 哈尔滨工程大学 | TB-type semi-rigid assembly type node and assembly method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113047430A (en) * | 2021-04-07 | 2021-06-29 | 西安建筑科技大学 | Assembled concrete frame structure cross tenon formula vertical bolted connection node |
| CN114960935A (en) * | 2022-01-13 | 2022-08-30 | 甘肃农业大学 | Post-earthquake function recoverable PC frame beam-column connecting node |
| CN115492240A (en) * | 2022-10-25 | 2022-12-20 | 哈尔滨工程大学 | TB-type semi-rigid assembly type node and assembly method thereof |
| CN115492240B (en) * | 2022-10-25 | 2023-08-25 | 哈尔滨工程大学 | TB-type semi-rigid assembly type node and assembly method thereof |
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| CN111877547B (en) | 2022-03-11 |
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