CN116163413A - Rigid connection node structure of precast concrete primary and secondary beams - Google Patents
Rigid connection node structure of precast concrete primary and secondary beams Download PDFInfo
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- CN116163413A CN116163413A CN202310008770.XA CN202310008770A CN116163413A CN 116163413 A CN116163413 A CN 116163413A CN 202310008770 A CN202310008770 A CN 202310008770A CN 116163413 A CN116163413 A CN 116163413A
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- precast concrete
- secondary beam
- rigid connection
- connection node
- node structure
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 138
- 238000003466 welding Methods 0.000 claims description 6
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 239000004567 concrete Substances 0.000 description 9
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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Classifications
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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
-
- 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
-
- 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
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention relates to a rigid connection node structure of a precast concrete main and secondary beam, which comprises a precast concrete main beam and a precast concrete secondary beam, wherein a connecting plate 4 for being installed with the precast concrete secondary beam is reserved on the precast concrete main beam, the connecting plate comprises a web plate which is vertically arranged and a flange which is horizontally arranged, the web plate and the flange are integrally arranged, the web plate is positioned in the middle of the flange, the web plate is vertically arranged with the flange, the longitudinal section of the middle part of the connecting plate is of an inverted T-shaped structure, the middle part of the connecting plate is embedded in the precast concrete main beam, the left end and the right end of the connecting plate extend to the outer side of the precast concrete main beam and are used for being connected with the precast concrete secondary beam, an embedded plate of a U-shaped structure is reserved at the bottom of the precast concrete secondary beam, and the embedded plate is lapped on the flange for fixing. Compared with the traditional shelving type node, the rigid connection node structure provided by the invention has the advantages that the precast concrete main beam is not weakened by a notch, and the integrity of the precast main beam is ensured.
Description
Technical Field
The invention belongs to the technical field of connection of precast concrete primary and secondary beams, and relates to a rigid connection node structure of precast concrete primary and secondary beams.
Background
Along with the continuous development of urban process in China and the continuous advocacy of energy-saving and environment-friendly engineering, more and more prefabricated assembly type structural forms continuously appear, and the defects of poor integrity, weak shearing resistance and the like of the existing prefabricated assembly type main and secondary beam connecting nodes exist, so that adverse effects are generated on the safety and stability of the whole structure. Therefore, on the premise of ensuring the structural safety, a simple and convenient method for connecting the precast concrete primary and secondary beam nodes is sought, and the technical problem is needed to be solved.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a structure of a rigid connection node of a precast concrete primary and secondary beam, which can solve the above-mentioned problems.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a just connect node structure of precast concrete owner secondary beam, including precast concrete girder and precast concrete secondary beam, reserve the connecting plate 4 that is used for with the installation of precast concrete secondary beam on it, the connecting plate includes the web of vertical setting and the edge of a wing that the level set up, web and edge of a wing set up an organic wholely, the web is located the middle part of edge of a wing, the web sets up with the edge of a wing is perpendicular, the longitudinal section of junction department in the middle of the connecting plate is the T type structure of inversion, the centre of connecting plate is pre-buried in precast concrete girder, the left and right both ends of connecting plate extend to the outside of precast concrete girder and are used for being connected with precast concrete secondary beam, precast concrete secondary beam bottom is being close to the tip of precast concrete girder and is reserved the pre-buried board of U type structure, the U type opening of pre-buried board corresponds with the link up notch on the precast concrete secondary beam, pre-buried board overlap joint is fixed on the edge of a wing.
Furthermore, the girth welding and fixing are carried out at the three-surface connection parts of the embedded plate and the flange.
Further, the flange length of the connecting plate exceeds the through notch of the precast concrete secondary beam but does not exceed the embedded plate at the same time.
Further, a gap is reserved between the precast concrete secondary beam and the precast concrete main beam.
Further, the side walls of the precast concrete main beam and the precast concrete secondary beam, which are opposite to each other, are respectively provided with rough surfaces, and the top ends of the precast concrete main beam and the precast concrete secondary beam are also respectively provided with rough surfaces.
Further, a post-pouring laminated layer structure is arranged between the precast concrete main beam and the precast concrete secondary beam and at the upper ends of the precast concrete main beam and the precast concrete secondary beam.
Further, the longitudinal ribs on the upper parts of the precast concrete secondary beams penetrate through the precast concrete main beams.
Further, the longitudinal ribs at the lower part of the precast concrete secondary beam are welded with the embedded plates.
Further, round holes are respectively formed in the web plates inside the precast concrete girder at edges close to the left side and the right side of the precast concrete girder and used for the waist bar of the precast concrete girder to penetrate through.
Further, a stud for enhancing the shearing bearing capacity of the connecting plate is fixed on the web plate inside the precast concrete girder.
The invention has the beneficial effects that:
1. compared with the traditional shelving type node, the rigid connection node structure provided by the invention has the advantages that the precast concrete main beam is not weakened by a notch, and the integrity of the precast main beam is ensured.
2. Compared with the traditional shelving type node, the rigid connection node structure has the advantages that the prefabricated secondary beam is wholly arranged on the flange of the connecting plate of the prefabricated main beam, the connection is more stable, and dislocation and torsion are not easy to occur.
3. The construction difficulty is effectively reduced while the construction quality is ensured, the construction period is shortened, and the time requirements of low-carbon society and green buildings on engineering management are met.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a structure of a rigid connection node of the present invention;
FIG. 2 is a cross-sectional view taken along section A-A in FIG. 1;
FIG. 3 is a cross-sectional view of section B-B of FIG. 1;
fig. 4 is a schematic diagram of connection of the connection board and the embedded board.
Reference numerals:
1. prefabricating a concrete girder; 2. precast concrete secondary beams; 3. post-pouring the laminated layer; 4. a connecting plate; 41. a web; 42. a flange; 5. a peg; 6. embedding a plate; 7. prefabricating longitudinal ribs of a concrete girder; 8. prefabricating concrete girder stirrups; 9. prefabricating concrete girder waist ribs; 10. precast concrete secondary beam upper longitudinal ribs; 11. precast concrete secondary beam stirrups; 12. and prefabricating longitudinal ribs at the lower part of the concrete secondary beam.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the invention; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present invention, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 to 4, a structure of a rigid connection node of a precast concrete main beam and a precast concrete secondary beam is shown, which comprises a precast concrete main beam 1 and a precast concrete secondary beam 2, wherein the precast concrete main beam 1 is precast in a factory or on site, and a connection plate 4 for being installed with the precast concrete secondary beam 2 is reserved on the precast concrete main beam 1. The connecting plate 4 comprises a web 41 and a flange 42 which are vertically arranged and horizontally arranged, the web 41 and the flange 42 are integrally arranged, the web 41 is positioned in the middle of the flange 42, the web 41 and the flange 42 are vertically arranged, and the longitudinal section of the middle of the connecting plate 4 is of an inverted T-shaped structure. The middle of the connecting plate 4 is embedded in the precast concrete main beam 1, and the left end and the right end of the connecting plate 4 extend to the outer side of the precast concrete main beam 1 and are used for being connected with the precast concrete secondary beam 2. The two ends of the connecting plate 4 extending outwards are symmetrical to each other.
The bottom of the precast concrete secondary beam 2 is embedded with an embedded plate 6 at the end part close to the precast concrete main beam 1. The embedded plate 6 is a whole U-shaped steel plate. The U-shaped opening of the embedded plate 6 corresponds to a through notch on the precast concrete secondary beam 2, and the through notch is arranged to be a rough surface. When assembled, the web 41 is positioned in the through notch of the precast concrete secondary beam 2 and the U-shaped opening of the embedded plate 6. A gap is reserved between the precast concrete secondary beam 2 and the precast concrete main beam 1.
The embedment plate 6 is lapped on the flange 42. The embedded plate 6 is connected with three sides of the flange 42 by fillet welding, so that the effective connection of the lower part of the precast concrete secondary beam 2 is realized. The precast concrete secondary beam 2's precast concrete secondary beam upper portion indulges muscle 10 and link up precast concrete girder 1, and precast concrete secondary beam 2's precast concrete secondary beam lower part indulges muscle 12 and pre-buried board 6 and welds, and welding length, intensity all satisfy the standard requirement, guarantees the stability of pre-buried board 6.
Round holes are respectively formed in the web 41 of the connecting plate 4 at the edges close to the left side and the right side of the precast concrete main beam 1 for the precast concrete main beam waist ribs 9 to penetrate. Studs 5 are welded to the web 41 inside the precast concrete main beam 1 for enhancing the shear load capacity of the web 4.
The length of the flange 42 of the connecting plate 4 exceeds the through notch of the precast concrete secondary beam 2 but does not exceed the embedded plate 6 at the same time, so that the effect of no bottom die casting in the later stage is achieved.
Rough surfaces are arranged on the side walls of the precast concrete main beam 1 and the precast concrete secondary beam 2, and rough surfaces are respectively arranged on the top ends of the precast concrete main beam 1 and the precast concrete secondary beam 2.
The precast concrete secondary beam stirrup 11 is welded and fixed at the connection with the precast concrete secondary beam upper longitudinal bar 10 and the precast concrete secondary beam lower longitudinal bar 12.
The precast concrete girder 1 is also internally provided with precast concrete girder longitudinal bars 7 and precast concrete girder stirrups 8 according to requirements.
The precast concrete secondary beam 2 has better horizontal and lateral constraint, can avoid the support of the lower part, and the precast concrete secondary beam 2 can be used as a support of a superimposed sheet and other precast floors.
The construction process of the invention comprises the following steps:
1) Prefabricating a precast concrete main beam 1 and a precast concrete secondary beam 2 according to node requirements, and embedding a pre-buried plate;
2) Installing a precast concrete girder 1 on site, and adjusting the position of the precast concrete girder 1;
3) Prefabricating a concrete secondary beam 2 on site, and adjusting the position of the precast concrete secondary beam 2;
4) The embedded plate 6 below the precast concrete secondary beam 2 is connected with three sides of the flange 42 of the connecting plate 4 reserved on the precast concrete main beam 1 through fillet welding;
5) Binding beam steel bars and paving a floor slab;
6) And (5) pouring concrete.
After the precast concrete secondary beam 2 is placed on the connecting plate 4 of the precast concrete main beam 1, three-surface girth welding is carried out on the connecting plate 4 and the embedded plate 6, a certain height gap exists between the precast concrete main beam 1 and the precast concrete secondary beam 2 after the precast concrete secondary beam 2 is placed on the connecting plate 4 of the precast concrete main beam 1, fine stone concrete is finally poured into a whole at the top and the gap of the precast concrete main beam 1 and the precast concrete secondary beam 2, and the post-pouring laminated layer 3 is completed, wherein the expansion rate of the concrete for the pouring is required to be more than or equal to 0.030 percent in 14 days.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a precast concrete owner secondary girder's just connects node structure which characterized in that: including precast concrete girder (1) and precast concrete secondary beam (2), reserve on it and be used for with precast concrete secondary beam (2) installed connecting plate (4), connecting plate (4) are including web (41) of vertical setting and the edge of a wing (42) that the level set up, web (41) and edge of a wing (42) set up integratively, web (41) are located the middle part of edge of a wing (42), web (41) set up perpendicularly with edge of a wing (42), the longitudinal section of junction plate (4) department is the T type structure of inversion, the middle part of connecting plate (4) is pre-buried in precast concrete girder (1), the outside that the left and right both ends of connecting plate (4) extend to precast concrete girder (1) is used for being connected with precast concrete secondary beam (2), pre-buried board (6) of U type structure are reserved to precast concrete secondary beam (2) bottom be close to precast concrete girder (1)'s tip, the U type opening of pre-buried board (6) is corresponding with the notch on precast concrete secondary beam (2), pre-buried board (6) overlap joint is fixed on edge of a wing (42).
2. A precast concrete primary and secondary beam rigid connection node structure according to claim 1, characterized in that: and the three-surface connection parts of the embedded plate (6) and the flange (42) are subjected to girth welding and fixing.
3. A precast concrete primary and secondary beam rigid connection node structure according to claim 1, characterized in that: the length of the flange (42) of the connecting plate (4) exceeds the through notch of the precast concrete secondary beam (2) but does not exceed the embedded plate (6).
4. A precast concrete primary and secondary beam rigid connection node structure according to claim 1, characterized in that: gaps are reserved between the precast concrete secondary beams (2) and the precast concrete main beams (1).
5. A precast concrete primary and secondary beam rigid connection node structure according to claim 1, characterized in that: the side walls of the precast concrete main beam (1) and the precast concrete secondary beam (2) which are opposite to each other are respectively provided with rough surfaces, and the top ends of the precast concrete main beam (1) and the precast concrete secondary beam (2) are also respectively provided with rough surfaces.
6. A precast concrete primary and secondary beam rigid connection node structure according to claim 1, characterized in that: and a post-pouring laminated layer (3) structure is arranged between the precast concrete main beam (1) and the precast concrete secondary beam (2) and at the upper ends of the precast concrete main beam (1) and the precast concrete secondary beam (2).
7. A precast concrete primary and secondary beam rigid connection node structure according to claim 1, characterized in that: the longitudinal ribs (10) at the upper part of the precast concrete secondary beam (2) penetrate through the precast concrete main beam (1).
8. A precast concrete primary and secondary beam rigid connection node structure according to claim 1, characterized in that: and the longitudinal ribs (12) at the lower part of the precast concrete secondary beam (2) are welded with the embedded plate (6).
9. A precast concrete primary and secondary beam rigid connection node structure according to claim 1, characterized in that: round holes are respectively formed in the web plates (41) inside the precast concrete main beam (1) at edges close to the left side and the right side of the precast concrete main beam (1) and used for the waist ribs (9) of the precast concrete main beam to penetrate through.
10. A precast concrete primary and secondary beam rigid connection node structure according to claim 1, characterized in that: and a stud (5) for enhancing the shearing bearing capacity of the connecting plate (4) is fixed on a web plate (41) in the precast concrete girder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310008770.XA CN116163413A (en) | 2023-01-04 | 2023-01-04 | Rigid connection node structure of precast concrete primary and secondary beams |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310008770.XA CN116163413A (en) | 2023-01-04 | 2023-01-04 | Rigid connection node structure of precast concrete primary and secondary beams |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116163413A true CN116163413A (en) | 2023-05-26 |
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ID=86412572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310008770.XA Pending CN116163413A (en) | 2023-01-04 | 2023-01-04 | Rigid connection node structure of precast concrete primary and secondary beams |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116163413A (en) |
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2023
- 2023-01-04 CN CN202310008770.XA patent/CN116163413A/en active Pending
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