CN216664468U - Assembled beam column node that little protruding fulcrum is connected - Google Patents
Assembled beam column node that little protruding fulcrum is connected Download PDFInfo
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- CN216664468U CN216664468U CN202122877913.XU CN202122877913U CN216664468U CN 216664468 U CN216664468 U CN 216664468U CN 202122877913 U CN202122877913 U CN 202122877913U CN 216664468 U CN216664468 U CN 216664468U
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Abstract
An assembled beam-column joint connected by a micro-convex fulcrum comprises a stand column, connecting beams arranged on two sides of a core area of the stand column joint and a precast beam connected with the connecting beams through a rabbet, wherein tenons and grooves are arranged at the joint of the rabbet and on the end surfaces of the precast beam and the connecting beams, the tenons and the grooves on the end surface of the precast beam are arranged in a vertically layered mode by taking a middle-layer longitudinal steel bar as a boundary, two pairs of tenons and grooves positioned on the opposite sides are spliced to form a vertical Z-shaped splicing seam a, and the vertical Z-shaped splicing seam comprises a first vertical part, a first transverse part and a second vertical part which are sequentially connected from top to bottom; the butt joint vertical surfaces of the two sides of the first vertical part are respectively provided with an upper flange plate which can be mutually bolted, the butt joint vertical surfaces of the two sides of the second vertical part are respectively provided with a lower flange plate which can be mutually bolted, and the butt joint surfaces of the upper side and the lower side of the first transverse part are respectively provided with a micro-convex embedded part. The utility model adopts the mode of transporting to the site for assembly after factory prefabrication, reduces the site wet operation, has small construction range and convenient operation, and can greatly shorten the construction period.
Description
Technical Field
The utility model relates to the field of building construction, and particularly belongs to an assembled beam-column joint connected by a micro-convex fulcrum.
Background
The building industry of China is subjected to structural adjustment and transformation upgrading, and the development is towards greenization, industrialization, informatization and the like. The assembly type building steps into the building stage of China again, and can be divided into according to the structural style: assembled frame construction, assembled shear wall structure, wherein assembled frame construction uses the most extensively, and historical earthquake destroys and shows: the fabricated concrete structure can not cause serious damage to each part in an earthquake, the main cause of damage is the damage of connecting nodes between the components, and therefore, one of the main research focuses of the fabricated building is node connection.
The node connection of the fabricated building is mainly divided into two types: 1) wet joining: mainly needs to carry out secondary pouring, and the strength is equivalent to equal to that of cast-in-place; 2) dry connection: the steel is implanted into the end parts of all the members and connected by welding, bolts and the like, and the wet connection nodes need secondary pouring, so that although the strength and the like are cast in situ, the rigidity of the nodes is seriously reduced in the earthquake, and the influence on the environment is large. The dry connection of the section steel connection is not widely applied in the prefabricated concrete structure, but the proposed node has good deformation and ductility, has great potential in the aspect of earthquake resistance and energy consumption, and is worthy of further research.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an assembled beam-column joint connected by a micro-convex fulcrum, which aims to solve the technical problem of poor anti-seismic effect in the prior art; and the problem of low construction efficiency and building quality in the prior art is solved.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an assembled beam-column joint connected by a micro-convex fulcrum comprises a stand column, connecting beams arranged on two sides of a core area of the stand column joint and a precast beam connected with the connecting beams through a tongue-and-groove, wherein the joint of the tongue-and-groove and the end surfaces of the precast beam and the connecting beams are respectively provided with a tenon and a groove, and the tenon and the groove on the opposite side are matched; the tie-beam all includes the stirrup that three-layer longitudinal reinforcement and interval set up with precast beam, its characterized in that: the tenon and the groove on the end surface of the precast beam are arranged in a vertically layered manner by taking the middle-layer longitudinal steel bar as a boundary, two pairs of tenons and grooves positioned on opposite sides are spliced to form a vertical Z-shaped splicing seam a, and the vertical Z-shaped splicing seam comprises a first vertical part, a first transverse part and a second vertical part which are sequentially connected from top to bottom;
the vertical part is provided with a first vertical part and a second vertical part, the first vertical part is provided with a first vertical flange, the second vertical part is provided with a second vertical flange, the first vertical flange is provided with a first vertical flange, the second vertical flange is provided with a second vertical flange, the first vertical flange is provided with a first vertical flange, the first vertical flange is provided with a second vertical flange, the first vertical flange is provided with a second vertical flange, the upper flange, the two vertical flange, the upper flange, the lower flange, the upper flange, the lower flange, which is provided on the upper flange, the lower flange, which is provided on the upper flange, the lower flange, the upper flange, the lower flange, which is bolted, and the lower flange, the upper flange, the lower flange, the upper flange, the lower flange, the upper flange, the lower flange, the upper flange, the lower flange, the upper flange, the lower flange, the.
Further preferably, part of the reinforcing steel bars of the longitudinal reinforcing steel bars in the middle layer are bent towards the upper flange plate or the lower flange plate to form bent reinforcing steel bars.
Further, the cross section of the micro-convex embedded part is F-shaped.
Further, the slightly convex embedded part is fixed on the top surface or the bottom surface of the longitudinal steel bar in the middle layer.
Furthermore, the end part of the longitudinal steel bar is welded and fixed with the upper flange plate or the lower flange plate after being bent.
In addition, the upper flange plate is a T-shaped plate, the bolt holes are formed in the transverse portion of the T-shaped plate, the lower flange plate is a rectangular plate, and the bolt holes are formed in the lower portion of the rectangular plate.
More preferably, the height that the upper flange plate extends out of the upper longitudinal steel bars and the height that the lower flange plate extends out of the lower longitudinal steel bars are adapted to the thickness of the precast beam concrete protection layer.
Compared with the prior art, the utility model has the following characteristics and beneficial effects:
the utility model utilizes the advantages of the tongue-and-groove connection to solve the defect that the splicing part of the assembled structure is not waterproof, simultaneously the tongue-and-groove connection can provide enough shear resistance, utilizes the micro-convex embedded part to prevent the concrete local pressure damage at the tongue-and-groove and the defect that the tensile resistance at the connecting part is not enough, utilizes the ductility of the upper flange plate and the lower flange plate to provide energy consumption capability, and provides enough escape time for people.
The utility model adopts the mode of factory prefabrication and then delivery to field assembly, and the dry connection of fastener connection is mainly adopted on the field, so that the field wet operation is reduced, the construction range is small, the operation is convenient, the construction period can be greatly shortened, and the industrialization degree is high. Meanwhile, the prefabricated parts are processed and manufactured in a factory unified assembly line mode, the quality of the prefabricated parts is guaranteed, and building garbage and sewage discharge and construction noise pollution are reduced.
The utility model can be assembled on site, improves the construction efficiency and the building quality, simultaneously plays a role in energy consumption of the upper and lower flange plates in earthquake, improves the repairability of the building structure after earthquake, simultaneously improves the earthquake resistance of the node, meets the requirements of strong shearing and weak bending so as to realize the fortification targets of 'no damage by small earthquake, repairable by middle earthquake and no fall by large earthquake', and lightens the earthquake damage of the structure.
Drawings
FIG. 1 is a schematic structural diagram of an assembled beam-column joint connected by a micro-convex fulcrum according to the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic structural view of a slightly convex embedded part according to the present invention;
FIG. 4 is a schematic structural view of an upper flange plate according to the present invention;
fig. 5 is a schematic structural view of a lower flange plate according to the present invention.
Reference numerals: 1-upright column; 2-connecting the beams; 3-prefabricating a beam; 4-longitudinal steel bars; 5-stirrup; 6-tenon; 7-a groove; 8-upper flange plate; 9-lower flange plate; 10-a slightly convex embedded part; 101-a bump; 102-a groove; 11-bending the steel bar; a-vertical Z-shaped splicing seams.
Detailed Description
In order to make the technical means, innovative features, objectives and functions realized by the present invention easy to understand, the present invention is further described below.
The examples described herein are specific embodiments of the present invention, are intended to be illustrative and exemplary in nature, and are not to be construed as limiting the scope of the utility model. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.
An assembled beam-column node connected by a micro-convex fulcrum is shown in figures 1 and 2 and comprises a stand column 1, connecting beams 2 arranged on two sides of a core area of the node of the stand column 1 and precast beams 3 connected with the connecting beams 2 through tongues and grooves, wherein the tongue 6 and the groove 7 are arranged at the joint of the tongues and the grooves and are matched with the tongue 6 and the groove 7 on the opposite sides of the end surfaces of the precast beams 3 and the connecting beams 2; the connecting beam 2 and the precast beam 3 both comprise three layers of longitudinal steel bars 4 and stirrups 5 arranged at intervals, tenons 6 and grooves 7 on the end face of the precast beam 3 are arranged in a vertically layered manner by taking the middle layer of longitudinal steel bars 4 as a boundary, two pairs of tenons 6 and grooves 7 positioned on opposite sides are spliced to form a vertical Z-shaped splicing seam a, and the vertical Z-shaped splicing seam a comprises a first vertical part, a first transverse part and a second vertical part which are sequentially connected from top to bottom; and part of the steel bars of the middle-layer longitudinal steel bar 4 are bent towards the upper flange plate 8 or the lower flange plate 9 to form bent steel bars 11, and the end part of the longitudinal steel bar 4 is welded and fixed with the upper flange plate 8 or the lower flange plate 9 after being bent.
The butt joint vertical surfaces of the two sides of the first vertical part are respectively provided with an upper flange plate 8 which can be mutually bolted, the butt joint vertical surfaces of the two sides of the second vertical part are respectively provided with a lower flange plate 9 which can be mutually bolted, the butt joint surfaces of the upper side and the lower side of the first transverse part are respectively provided with a micro-convex embedded part 10, the cross section of the micro-convex embedded part 10 is F-shaped, the micro-convex embedded part 10 is fixed on the top surface or the bottom surface of the longitudinal steel bar 4 in the middle layer, as shown in figure 3, the micro-convex embedded part 10 is provided with bulges 101 and grooves 102 at intervals, and the bulges 101 and the grooves 102 of the upper micro-convex embedded part 10 and the lower micro-convex embedded part 10 are matched.
As shown in fig. 4, the upper flange plate 8 is a T-shaped plate, the bolt holes are formed in the transverse portion of the T-shaped plate, as shown in fig. 5, the lower flange plate 9 is a rectangular plate, the bolt holes are formed in the lower portion of the rectangular plate, the upper flange plate 8 extends out of the upper longitudinal steel bars 4, and the lower flange plate 9 extends out of the lower longitudinal steel bars 4 to a height corresponding to the thickness of the concrete protective layer of the precast beam 3.
The concrete construction method of the utility model is as follows:
the assembled beam column joint connected by the micro-convex pivot mainly comprises a precast concrete column, a precast beam, an upper flange plate, a lower flange plate, a micro-convex embedded part, longitudinal steel bars, stirrups and bent steel bars. The node connecting area is not in the core area but moves outwards to the reverse bending point, and in view of the complex position of the reverse bending point, the node connecting area generally moves outwards by 300-450 degrees according to the research.
Column 1: is a common concrete column, because the utility model is characterized in that the node connecting area is at the reverse bend point, and the damage to the core area of the node is mainly avoided. Therefore, the prefabricated columns are respectively protruded at two sides of the core area of the node and are connected by adopting a tongue-and-groove with waterproof function; the upper longitudinal bar of the section of the connecting area is welded with the upper flange plate, and the lower longitudinal bar is welded with the lower flange plate; welding the slightly convex embedded part with the middle longitudinal steel bar; and placing the manufactured reinforcement cage into a template and pouring concrete for curing for 28 days.
Prefabricating a beam: longitudinal stressed steel bars (namely longitudinal steel bars) are uniformly distributed in the steel bar bending machine, and stirrups are bound on the peripheries of the longitudinal steel bars and the bent steel bars; longitudinal steel bars of the cross section of the connecting area are welded with the upper flange plate, and the lower longitudinal steel bars are welded with the lower flange plate; welding the micro-convex embedded part with the middle longitudinal steel bar; and placing the manufactured reinforcement cage into a template and pouring concrete for curing for 28 days.
The upright posts are vertically placed, two prefabricated beams are hoisted to be positioned at two sides of the prefabricated posts, the slightly convex embedded parts are utilized for alignment, and the alignment is assembled by means of the support of the rabbet brackets
And finally, aligning the bolt holes of the upper and lower flange plates (the number of the specific holes is determined according to calculation), screwing the flange plates, and finishing assembly.
While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. An assembled beam-column joint connected by a micro-convex fulcrum comprises a stand column (1), connecting beams (2) arranged on two sides of a core area of the joint of the stand column (1) and precast beams (3) connected with the connecting beams (2) through tongues and grooves, wherein the tongue and groove connecting parts, the end surfaces of the precast beams (3) and the connecting beams (2) are provided with tongues (6) and grooves (7), and the tongues (6) and the grooves (7) positioned on the opposite sides are matched; tie-beam (2) and precast beam (3) all include stirrup (5) that three-layer longitudinal reinforcement (4) and interval set up, its characterized in that: the tenon (6) and the groove (7) on the end face of the precast beam (3) are arranged in a layered manner up and down by taking the middle-layer longitudinal steel bar (4) as a boundary, the two pairs of tenons (6) and grooves (7) positioned on the opposite sides are spliced to form a vertical Z-shaped splicing seam (a), and the vertical Z-shaped splicing seam (a) comprises a first vertical part, a first transverse part and a second vertical part which are sequentially connected from top to bottom;
the vertical part is characterized in that upper flange plates (8) which can be bolted mutually are arranged on the butt joint vertical faces of the two sides of the first vertical part, lower flange plates (9) which can be bolted mutually are arranged on the butt joint vertical faces of the two sides of the second vertical part, slightly convex embedded parts (10) are arranged on the butt joint faces of the upper side and the lower side of the first transverse part, protrusions (101) and grooves (102) are arranged on the slightly convex embedded parts (10) at intervals, and the protrusions (101) and the grooves (102) of the slightly convex embedded parts (10) are matched with each other.
2. A micro-convex fulcrum connected fabricated beam column node as claimed in claim 1, wherein: and part of the reinforcing steel bars of the longitudinal reinforcing steel bars (4) in the middle layer are bent towards the upper flange plate (8) or the lower flange plate (9) to form bent reinforcing steel bars (11).
3. A micro-convex fulcrum connected fabricated beam column node as claimed in claim 1, wherein: the section of the micro-convex embedded part (10) is F-shaped.
4. A micro-convex fulcrum connected fabricated beam column node as claimed in claim 1, wherein: the slightly convex embedded part (10) is fixed on the top surface or the bottom surface of the middle-layer longitudinal steel bar (4).
5. A micro-convex fulcrum connected fabricated beam column node as claimed in claim 1, wherein: and the end part of the longitudinal steel bar (4) is welded and fixed with the upper flange plate (8) or the lower flange plate (9) after being bent.
6. A micro-convex fulcrum connected fabricated beam column node as claimed in claim 1, wherein: the upper flange plate (8) is a T-shaped plate, the bolt holes are formed in the transverse portion of the T-shaped plate, the lower flange plate (9) is a rectangular plate, and the bolt holes are formed in the lower portion of the rectangular plate.
7. The fabricated beam-column joint connected by the micro-convex pivot points as claimed in any one of claims 1 to 6, wherein: the height of the upper flange plate (8) extending out of the upper longitudinal steel bar (4) and the height of the lower flange plate (9) extending out of the lower longitudinal steel bar (4) are adapted to the thickness of the concrete protective layer of the precast beam (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122877913.XU CN216664468U (en) | 2021-11-23 | 2021-11-23 | Assembled beam column node that little protruding fulcrum is connected |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122877913.XU CN216664468U (en) | 2021-11-23 | 2021-11-23 | Assembled beam column node that little protruding fulcrum is connected |
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| Publication Number | Publication Date |
|---|---|
| CN216664468U true CN216664468U (en) | 2022-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122877913.XU Active CN216664468U (en) | 2021-11-23 | 2021-11-23 | Assembled beam column node that little protruding fulcrum is connected |
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| CN (1) | CN216664468U (en) |
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- 2021-11-23 CN CN202122877913.XU patent/CN216664468U/en active Active
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