CN208486375U - A kind of assembled beam connecting node including UHTCC and X-shape low-yield reinforcing bar - Google Patents
A kind of assembled beam connecting node including UHTCC and X-shape low-yield reinforcing bar Download PDFInfo
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- CN208486375U CN208486375U CN201820836416.0U CN201820836416U CN208486375U CN 208486375 U CN208486375 U CN 208486375U CN 201820836416 U CN201820836416 U CN 201820836416U CN 208486375 U CN208486375 U CN 208486375U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The utility model discloses a kind of assembled beam connecting nodes for including UHTCC and X-shape low-yield reinforcing bar, including precast beam, node and the stepped linkage section with shear wall one-piece casting are poured afterwards, regular reinforcement I has been poured in stepped linkage section, and reinforcing bar I is connected with low-yield, regular reinforcement II has been poured in precast beam, and reinforcing bar II is connected with low-yield, it is attached between regular reinforcement I and regular reinforcement II by connecting sleeve, it is attached between low-yield connection reinforcing bar I and low-yield connection reinforcing bar II by connecting sleeve, low-yield connection reinforcing bar I in stepped linkage section connect the distribution of II symmetrical chiasma of reinforcing bar with the low-yield in precast beam, after pour at node filling superhigh tenacity cement-base composite material.The utility model has the beneficial effects that easy construction, improves deformation, the energy dissipation capacity of precast beam and other concrete component connecting nodes, node crack is poured after avoiding and is quickly carried out and brittle fracture of the beam-ends under shearing action.
Description
Technical field
The utility model relates to building fields, relate in particular to one kind and include UHTCC and X-shape low-yield reinforcing bar
Assembled beam connecting node.
Background technique
In recent years, under the fostering and push of national policy, prefabricated concrete structure achieves very fast development in China
Be widely applied.It has many advantages, such as that efficiency of construction is high, build guality is good, environmental pollution is smaller, worker's working condition is good,
It is a kind of structure type for meeting China's future architecture industrialization and housing industrialization trend.
The core technology of prefabricated concrete structure is the structural form and treatment process of prefabricated components connecting node, matter
Amount directly affects the anti-seismic performance and mechanical index of the class formation.However traditional concrete material usually exist tensile strength compared with
It is low, the disadvantages of ductility is poor.In fabricated construction beam-ends or node region in use, to guarantee its beam-ends shear resistance, usually
The problems such as needing to encrypt stirrup, concreting difficulty when easily causing site operation, or pouring leakiness.Meanwhile mounting structure
Between after pour node region often crack carried out rapidly in the case where acting on compared with small load, cause column joints deformation ability poor, consume energy
The disadvantages of ability is lower.
Correlative study is verified: the reinforced concrete frame structure for preparing low-yield reinforcing bar possesses preferably energy consumption energy
Power and deformability, while preferable ductility can be shown under shear action.It pours after armored concrete and is used at node
Superhigh tenacity cement-base composite material (UHTCC) pours rigidity after node cracks after can effectively avoid prefabricated concrete structure and holds
The disadvantages of power loses larger, ductility and deformability is insufficient, and energy dissipation capacity is poor under geological process is carried, and earthquake work can be improved
With the destructive characteristics in lower node area, to pour the anti-seismic performance of node after assembly concrete to improve and propose completely new solution
Scheme.Currently, it is clear how using existing material and technological means to construct a kind of good stress performance, reasonable stress, power transmission
And the prefabricated beam connecting node of new concrete of convenient and quick construction, the weight for having become the application of assembled building technology and promoting
Want link.
Utility model content
For the problems in the relevant technologies, the utility model proposes one kind to include UHTCC and X-shape low-yield reinforcing bar
Assembled beam connecting node, solve at present concrete prefabricated beam and other element joints ductility and energy dissipation capacity it is poor, apply
Work is more complex, and crack lead to the problem of after carry out it is very fast.
In order to achieve the above technical purposes, technical scheme of the utility model is as follows:
A kind of assembled beam connecting node including UHTCC and X-shape low-yield reinforcing bar, including precast beam and with cut
The stepped linkage section of power wall one-piece casting pours node, the ladder after being equipped between the precast beam and stepped linkage section
Regular reinforcement I has been poured in type linkage section and has connected reinforcing bar I with low-yield, and the regular reinforcement I connects reinforcing bar I with low-yield
Reserved one section outside stepped linkage section, has poured regular reinforcement II and has connected reinforcing bar II, institute with low-yield in the precast beam
It states regular reinforcement II and connects reserved one section of reinforcing bar II with low-yield outside precast beam, the regular reinforcement I and regular reinforcement II
Between be attached by connecting sleeve, passes through company between low-yield connection reinforcing bar I and low-yield connection reinforcing bar II
Female connector cylinder is attached, and the low-yield connection reinforcing bar I in the step type linkage section is connect with the low-yield in precast beam
Filling superhigh tenacity cement-base composite material at node is poured in the distribution of II symmetrical chiasma of reinforcing bar after described.
Further, the beam-ends of the precast beam is equipped with ladder section, and the shape of the ladder section is connect with the step type
The stairstepping of section is identical.
Further, three ladders are at least arranged in the ladder section in precast beam short transverse, each ladder
With a thickness of 1/6-the 1/4 of precast beam cross-sectional height, two nearest ladders of distance on the precast beam and stepped linkage section
The distance between should be 1-1.5 times of the ladder height.
Further, the stepped linkage section uses superhigh tenacity cement-base composite material.
Further, it uses and is threadedly coupled between the regular reinforcement I, regular reinforcement II and connection sleeve；It is described low in the wrong
It takes to use between point connection reinforcing bar I, low-yield connection reinforcing bar II and connection sleeve and be threadedly coupled.
Further, the low-yield connection reinforcing bar I includes horizontal segment and oblique section, and the low-yield connects reinforcing bar
I horizontal segment is anchored in stepped linkage section, is coated with silica gel on oblique section of the low-yield connection reinforcing bar I, described
The stepped linkage section of oblique section of stretching of low-yield connection reinforcing bar I simultaneously pours 45-degree-buckling on the inside of node backward.
Further, the low-yield connection reinforcing bar II includes horizontal segment and oblique section, and the low-yield connects steel
The horizontal segment of muscle II is anchored in precast beam, is coated with silica gel on oblique section of the low-yield connection reinforcing bar II, described low
Oblique section of stretching precast beam of yield point connection reinforcing bar II simultaneously pours 45-degree-buckling on the inside of node backward.
Further, the sectional area of the low-yield connection reinforcing bar II is not less than the 0.4% of precast beam area of section.
Further, it is poured after described and is equipped with stirrup at node.
The utility model has the beneficial effects that (1) is connected in precast beam reinforced bar junction using low-yield reinforcing bar, Ke Yili
Lower with soft rigid yield point, the stronger advantage of deformability is applied and pours node region after assembly concrete, enhances interconnecting piece
The ductility and deformability of position, avoid it that brittle fracture occurs under shear action, and the seismic energy that dissipates in earthquake.
(2) it constructs in advance on shear wall or column the stepped linkage section of certain length, it can be to avoid assembly connection position
The beam-ends the most unfavorable in stress controls the position of its plastic hinge appearance, improves the safety of structure.
(3) section is poured after forming " X " type between reserved shear wall step type linkage section and precast beam step type linkage section
Point can resist the active force of shear direction just, avoid crisp after pouring node filling superhigh tenacity cement-base composite material after this
Property destroy.Too fast upward development after avoiding crack to generate simultaneously, in two kinds of concrete material interface premature ruptures and forms level
Straight joint.
(4) material is poured as the area Hou Jiao and beam-ends using superhigh tenacity cement-base composite material, can be effectively improved
The ductility and deformability of beam-ends connection, while enhancing energy dissipation capacity of the node in earthquake, inhibit generation and the hair of major fracture
Exhibition avoids precast concrete beam that brittle break occurs in junction.
(5) since superhigh tenacity cement-base composite material is higher compared to general concrete cost, only in beam-ends position
It sets with Hou Jiao node area using this kind of material with feasibility economically.
(6) compared with cast-in-place concrete node, this kind of node is produced using industrialized mode, stringent by standard
Factory product is examined, construction quality is more easier to guarantee, and correlation test is it has been proved that superhigh tenacity cement-base composite material can
With with by shear-steel muscle collaboration cut, the area Hou Jiao be not required to encryption stirrup, to avoid in traditional assembled technology because of node area stirrup mistake
In intensively cause construction material waste and after pour part concreting leakiness.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is a kind of assembly for including UHTCC and X-shape low-yield reinforcing bar according to the utility model embodiment
The schematic perspective view of formula beam connecting node；
Fig. 2 is a kind of assembly for including UHTCC and X-shape low-yield reinforcing bar according to the utility model embodiment
The elevational perspective view of formula beam connecting node；
Fig. 3 is a kind of assembly for including UHTCC and X-shape low-yield reinforcing bar according to the utility model embodiment
The birds-eye perspective of formula beam connecting node；
Fig. 4 is that the connection reinforcing bar I of the low-yield according to the utility model embodiment connect reinforcing bar II with low-yield
Connected mode schematic diagram.
In figure:
1, precast beam；2, stepped linkage section；31, low-yield connects reinforcing bar I；32, low-yield connects reinforcing bar II；
41, regular reinforcement I；42, regular reinforcement II；5, shear wall；6, node is poured after；7, sleeve is connected.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art's every other embodiment obtained, all belongs to
In the range of the utility model protection.
As shown in Figs 1-4, a kind of assembled beam connecting node including UHTCC and X-shape low-yield reinforcing bar is specific
Implementation divides three phases:
First stage: prefabricated according to Structural Design Requirement to Mr. Yu's Super High reinforced concrete frame-core wall structure
The section of beam 1 is 300mm × 800mm, and beam span 9m selects regular reinforcement II 42 for HRB400, and low-yield connects reinforcing bar
II 32 selection LY225 determine that the extension of stepped linkage section 2 connecting with shear wall 5 is 500mm, width 300mm,
Each ladder segment length is 150mm, and each rank rise of flight is 160mm；Ladder-like linkage section and shear wall in precast beam 1
On overhanging linkage section on ladder be arranged symmetrically, in stepped linkage section 2 arrange regular reinforcement I 41, the label of reinforcing bar and
Diameter is corresponded with the regular reinforcement II 42 in precast beam 1, is bound after mantle fiber processing, indulges the connection at muscle up and down
Reinforcing bar stretches out 2 plane 450mm of stepped linkage section, stretches out linkage section plane by the connection reinforcing bar at the waist muscle of detailing requiments configuration
300mm, and arrange that chiasma type low-yield connects reinforcing bar I 31, the oblique section of needs that chiasma type low-yield connects reinforcing bar I 31 are pre-
First smear 2mm thickness silica gel.Chiasma type low-yield connection reinforcing bar I 31 pours 6 inner bending of node after after stretching out stepped linkage section 2
45 °, then pour superhigh tenacity cement-base composite material.
Second stage: in precast concrete factory process, 1 processing length of precast beam is design length-step type linkage section 2
6 length of node is poured after length-, arranges its regular reinforcement according to design requirement, the regular reinforcement that need to be connected is also required to preparatory mantle fiber.
Ladder section, 2 phase of stepped linkage section that the size and shape of ladder section are connected with shear wall is made in the beam-ends of precast beam 1
Together.The regular reinforcement II 42 that need to be connected is poured in 1 concrete of precast beam in advance, linkage section is stepped on position and shear wall
Regular reinforcement I 41 in linkage section 2 corresponds, and connects reinforcing bar II 32 in 1 end of precast beam arrangement chiasma type low-yield,
Chiasma type low-yield connection reinforcing bar II 32 should guarantee the anchorage length of code requirement in precast beam 1, stretch out 1 plane of precast beam
45 ° of 6 inner bending of node is poured after backward, then casting concrete precast beam 1 and is conserved.
Phase III: when field operation, by the lifting of precast beam 1 to designated place, step type will be stretched out even with connection sleeve 7
It connects section 2 and the regular reinforcement of shear wall and connect reinforcing bar with reserved low-yield and connect one by one, then scene supporting module and make
Node 6 is poured after being poured with superhigh tenacity cement-base composite material, maintenance can both form this kind of novel fabricated connection after 28 days
Node.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (9)
1. a kind of assembled beam connecting node for including UHTCC and X-shape low-yield reinforcing bar, which is characterized in that including prefabricated
Beam (1) and stepped linkage section (2) with shear wall (5) one-piece casting, the precast beam (1) and stepped linkage section (2) it
Between be equipped with after pour node (6), poured regular reinforcement I (41) in step type linkage section (2) and connected reinforcing bar I with low-yield
(31), the regular reinforcement I (41) connected with low-yield reserved one section of reinforcing bar I (31) stepped linkage section (2) outside, it is described
Poured regular reinforcement II (42) in precast beam (1) and connected reinforcing bar II (32) with low-yield, the regular reinforcement II (42) and
Low-yield connect reserved one section of reinforcing bar II (32) precast beam (1) outside, the regular reinforcement I (41) and regular reinforcement II (42)
Between be attached by connecting sleeve (7), low-yield connection reinforcing bar I (31) connect reinforcing bar II (32) with low-yield
Between be attached by connecting sleeve (7), low-yield connection reinforcing bar I (31) in step type linkage section (2) and pre-
Low-yield connection reinforcing bar II (32) symmetrical chiasma distribution in beam (1) processed, pours filling superhigh tenacity water at node (6) after described
Cement-based composite material.
2. a kind of assembled beam connecting node for including UHTCC and X-shape low-yield reinforcing bar according to claim 1,
It is characterized in that, the beam-ends of the precast beam (1) is equipped with ladder section, the shape of the ladder section and the stepped linkage section
(2) stairstepping is identical.
3. a kind of assembled beam connecting node for including UHTCC and X-shape low-yield reinforcing bar according to claim 2,
It is characterized in that, three ladders, the thickness of each ladder is at least arranged in the ladder section in precast beam (1) short transverse
It is 1/6-the 1/4 of precast beam (1) cross-sectional height, distance is nearest on the precast beam (1) and stepped linkage section (2) two
The distance between a ladder should be 1-1.5 times of the ladder height.
4. a kind of assembled for including UHTCC and X-shape low-yield reinforcing bar according to claim 1 to 3
Beam connecting node, which is characterized in that the step type linkage section (2) uses superhigh tenacity cement-base composite material.
5. a kind of assembled beam connecting node for including UHTCC and X-shape low-yield reinforcing bar according to claim 1,
It is characterized in that, the regular reinforcement I (41), regular reinforcement II (42) with connect between sleeve (7) using be threadedly coupled；It is described
Low-yield connection reinforcing bar I (31), low-yield connect reinforcing bar II (32) and connect between sleeve (7) using threaded connection.
6. according to claim 1 or a kind of assembled for including UHTCC and X-shape low-yield reinforcing bar described in 5 any one
Beam connecting node, which is characterized in that low-yield connection reinforcing bar I (31) includes horizontal segment and oblique section, the low surrender
The horizontal segment of point connection reinforcing bar I (31) is anchored in stepped linkage section (2), and the low-yield connects the oblique of reinforcing bar I (31)
Silica gel is coated in section, the stepped linkage section of oblique section of stretching of low-yield connection reinforcing bar I (31) simultaneously pours section backward
45-degree-buckling on the inside of point (6).
7. according to claim 1 or a kind of assembled for including UHTCC and X-shape low-yield reinforcing bar described in 5 any one
Beam connecting node, which is characterized in that low-yield connection reinforcing bar II (32) includes horizontal segment and oblique section, the low surrender
The horizontal segment of point connection reinforcing bar II (32) is anchored in precast beam (1), and oblique section of low-yield connection reinforcing bar II (32)
On be coated with silica gel, oblique section of stretchings precast beam of low-yield connection reinforcing bar II (32) simultaneously pours node (6) inside backward
45-degree-buckling.
8. a kind of assembled beam connecting node for including UHTCC and X-shape low-yield reinforcing bar according to claim 1,
It is characterized in that, the sectional area of low-yield connection reinforcing bar II (32) is not less than the 0.4% of precast beam (1) area of section.
9. a kind of assembled beam connecting node for including UHTCC and X-shape low-yield reinforcing bar according to claim 1,
Stirrup is equipped at node (6) it is characterized in that, pouring after described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820836416.0U CN208486375U (en) | 2018-05-31 | 2018-05-31 | A kind of assembled beam connecting node including UHTCC and X-shape low-yield reinforcing bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820836416.0U CN208486375U (en) | 2018-05-31 | 2018-05-31 | A kind of assembled beam connecting node including UHTCC and X-shape low-yield reinforcing bar |
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| Publication Number | Publication Date |
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| CN208486375U true CN208486375U (en) | 2019-02-12 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130489A (en) * | 2019-06-17 | 2019-08-16 | 湘潭大学 | The modulated shearing double inclined plane assembling type node of one kind and its construction method |
| CN110130488A (en) * | 2019-06-17 | 2019-08-16 | 湘潭大学 | A kind of novel fabricated building node and its construction |
| CN111749328A (en) * | 2020-07-28 | 2020-10-09 | 湘潭大学 | Novel assembly type beam joint and construction form thereof |
| CN112045845A (en) * | 2020-09-08 | 2020-12-08 | 射阳成盛新型建材有限公司 | Production method of concrete prefabricated part |
| CN115262810A (en) * | 2022-08-02 | 2022-11-01 | 华北水利水电大学 | Construction method of foam concrete wall with supporting effect |
-
2018
- 2018-05-31 CN CN201820836416.0U patent/CN208486375U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130489A (en) * | 2019-06-17 | 2019-08-16 | 湘潭大学 | The modulated shearing double inclined plane assembling type node of one kind and its construction method |
| CN110130488A (en) * | 2019-06-17 | 2019-08-16 | 湘潭大学 | A kind of novel fabricated building node and its construction |
| CN111749328A (en) * | 2020-07-28 | 2020-10-09 | 湘潭大学 | Novel assembly type beam joint and construction form thereof |
| CN112045845A (en) * | 2020-09-08 | 2020-12-08 | 射阳成盛新型建材有限公司 | Production method of concrete prefabricated part |
| CN115262810A (en) * | 2022-08-02 | 2022-11-01 | 华北水利水电大学 | Construction method of foam concrete wall with supporting effect |
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