CN222614652U - Two-way atress close-spliced laminated slab connection structure - Google Patents
Two-way atress close-spliced laminated slab connection structure Download PDFInfo
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- CN222614652U CN222614652U CN202420555383.8U CN202420555383U CN222614652U CN 222614652 U CN222614652 U CN 222614652U CN 202420555383 U CN202420555383 U CN 202420555383U CN 222614652 U CN222614652 U CN 222614652U
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Abstract
本实用新型涉及装配式结构施工技术领域，旨在解决现有的双向叠合板密拼接缝的连接构造存在易开裂、用钢量大、对后浇层厚度要求高的问题，提供一种双向受力密拼叠合板连接结构，包括叠合板一和叠合板二，二者的板侧进行拼接，叠合板一的一侧设有凸起，叠合板二的一侧设有凹槽，凸起插入凹槽；叠合板一上预埋有预埋连接件，预埋连接件的一端从凸起的前端伸出；叠合板二的内部设有预留插筋管道，预留插筋管道与凹槽相连通；预埋连接件插入预留插筋管道中；叠合板二的顶面开设有灌浆孔，灌浆孔与预留插筋管道相连通；叠合板二的板侧的顶部设有缺口，缺口与凹槽相连通；本实用新型叠合板间的连接强度大，不易开裂，用钢量小，对后浇层厚度要求低。
The utility model relates to the technical field of prefabricated structure construction, and aims to solve the problems of easy cracking, large steel consumption and high requirement for the thickness of the post-casting layer in the connection structure of the existing close-joined joints of bidirectional composite plates, and provides a bidirectional force-bearing close-joined composite plate connection structure, comprising a composite plate one and a composite plate two, the plate sides of the two are spliced, a protrusion is provided on one side of the composite plate one, and a groove is provided on one side of the composite plate two, and the protrusion is inserted into the groove; an embedded connecting piece is embedded on the composite plate one, and one end of the embedded connecting piece extends from the front end of the protrusion; a reserved dowel pipe is provided inside the composite plate two, and the reserved dowel pipe is connected to the groove; the embedded connecting piece is inserted into the reserved dowel pipe; a grouting hole is provided on the top surface of the composite plate two, and the grouting hole is connected to the reserved dowel pipe; a notch is provided on the top of the plate side of the composite plate two, and the notch is connected to the groove; the connection strength between the composite plates of the utility model is large, not easy to crack, small steel consumption, and low requirement for the thickness of the post-casting layer.
Description
Technical Field
The utility model relates to the technical field of assembly type structure construction, in particular to a connecting structure of a two-way stress closely-spliced laminated slab.
Background
Under the large environment of urban construction development in China, the assembled building structure is increasingly applied to building engineering construction. As a common construction technology in assembled building structures in China, the laminated slab construction technology has the characteristics of light weight, high strength, good durability, higher mechanical construction property, strong adaptability and the like. By reasonably applying the construction technical means, the construction environment of a building construction site can be optimized, harmful gas, noise and building garbage are not generated, the construction quality problem of building engineering can be avoided to a certain extent, and the efficiency and quality of building construction can be greatly improved, so that the laminated slab has a wider development prospect in the future along with continuous development and innovation of the building industry.
According to the current standard 15g310-1 assembled concrete joint construction (building cover and stair), the overlapping slab side joint technology can be divided into two main types of post-pouring belt type joints and close-spliced joints. The post-pouring belt type joint can realize 'equivalent cast-in-situ', has good quality and high strength after molding, but has the defects that the arrangement of reinforcing steel bars at the joint of the laminated slab is complicated, and the collision condition of the reinforcing steel bars is serious when the laminated slab is installed, so that the site construction efficiency is affected. Besides, the template needs to be supported, so that the construction cost is high and the time consumption is long. The close-spliced seam has simple structure and convenient construction, is the direction of industrial development of the building, but is generally straight, the side of the slab is not provided with ribs, the strength and the rigidity of the floor slab are weakened, and the floor slab is easy to crack along the spliced seam under the actions of load, temperature, deformation and the like. In the connection structure of the two-way laminated slab close-spliced seam, besides the through straight seam still exists in the precast slab, the defects that the steel consumption is large, the requirement on the thickness of the post-cast layer is high and the like are caused by the fact that the steel bars are required to be paved and the post-cast layer is poured above the laminated slab close-spliced seam.
The two laminated slab side joint processes have advantages and disadvantages, but compared with the post-pouring strip joint, the close-spliced joint is superior in construction efficiency, construction quality and safety, and has a larger improvement space.
Disclosure of utility model
The utility model aims to provide a connecting structure of a two-way forced close-spliced laminated slab, which solves the problems of easy cracking, large steel consumption and high requirement on post-pouring layer thickness of the existing connecting structure of the close-spliced seam of the two-way laminated slab.
The utility model is realized by adopting the following technical scheme:
The utility model provides a connecting structure of a two-way forced close-spliced laminated slab, which comprises a laminated slab I and a laminated slab II, wherein the laminated slab I and the laminated slab II are spliced on the plate side, a bulge is arranged on one side of the laminated slab I, a groove is arranged on one side of the laminated slab II, and the bulge is inserted into the groove;
An embedded connecting piece is embedded in the first laminated plate, and one end of the embedded connecting piece extends out of the front end of the protrusion; a reserved dowel bar pipeline is arranged in the second superimposed sheet and is communicated with the groove;
A grouting hole is formed in the top surface of the second laminated plate, the grouting hole is communicated with the reserved dowel bar pipeline, and the grouting hole is used for grouting slurry;
and a notch is formed in the top of the plate side of the second laminated plate and communicated with the groove.
As a preferable technical scheme:
The grouting holes, the reserved dowel bar pipelines, the grooves and the gaps are sequentially communicated to form a channel.
As a preferable technical scheme:
Rectangular grooves are formed in the bottoms of the two superimposed sheets and the first plate side of the superimposed sheet, the two superimposed sheets and the rectangular grooves on the first superimposed sheet are in butt joint and are spliced to form a sealing groove, and waterproof materials are filled in the sealing groove.
As a preferable technical scheme:
The waterproof material adopts epoxy mortar.
As a preferable technical scheme:
The reserved dowel bar pipeline is a horizontal pipeline, and one end of the reserved dowel bar pipeline is communicated with the groove.
As a preferable technical scheme:
The embedded connecting piece is an embedded steel bar, one end of the embedded steel bar is embedded in the first laminated plate, and the other end of the embedded steel bar horizontally extends out of the protruding part and is inserted into the reserved dowel bar pipeline.
As a preferable technical scheme:
A plurality of protrusions are arranged on one side of the first laminated plate at intervals, a plurality of grooves are correspondingly arranged on one side of the second laminated plate at intervals, and the protrusions are inserted into the corresponding grooves.
As a preferable technical scheme:
The first laminated plate is embedded with a plurality of embedded connectors, each protrusion is correspondingly provided with one embedded connector, each groove is correspondingly communicated with one reserved dowel bar pipeline, and the embedded connectors are inserted into the corresponding reserved dowel bar pipelines.
As a preferable technical scheme:
And a plurality of grouting holes are formed in the top surface of the second laminated plate at intervals, and the grouting holes are communicated with the corresponding reserved dowel bar pipelines.
As a preferable technical scheme:
The grouting holes are vertical holes which are vertically formed.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
The connecting structure increases the connecting area of the first laminated plate and the second laminated plate, and forms a rigid connecting structure at the joint by matching the slurry between the first laminated plate and the second laminated plate through the embedded bars, so that the first laminated plate and the second laminated plate are connected together, and the two laminated plates are connected more reliably. Compared with the prior close-spliced seam which is a straight seam and the side of the plate is not provided with ribs, the utility model changes the form of the spliced seam, increases the connection strength between the superimposed sheets, is not easy to crack along the spliced seam, does not need to additionally arrange reinforcing steel bars on the superimposed sheets, has small steel consumption and has low requirement on post-pouring layer thickness. The construction method is beneficial to large-area superimposed sheet construction operation, is particularly convenient for the construction of the joint positions of the bidirectional superimposed sheets, and solves the quality control problem that the superimposed sheets at the joint positions are easy to crack. The slurry leakage in the concrete pouring process can be basically avoided, and the concrete waste is reduced.
Compared with the existing post-pouring strip joint mode, the method has the advantages that the laminated plates are spliced and then grouted, the splicing joint template is not required to be erected, the construction efficiency is high, the construction quality is high, the cost for erecting the template and the workload for erecting the template are saved, the construction cost is reduced, and the construction period is shortened.
Drawings
FIG. 1 is a schematic view of the structure of a first laminated sheet and a second laminated sheet before connection.
FIG. 2 is a cross-sectional view of a first and second superimposed sheet according to the present utility model before joining.
FIG. 3 is a schematic structural view of a connecting structure of a two-way stress closely-spliced slab according to the utility model.
FIG. 4 is a cross-sectional view of a bi-directional forced close-up laminate connection according to the present utility model.
FIG. 5 is a top view of the connecting structure of the two-way forced closely-spliced slab.
The icon comprises a first 1-laminated slab, a second 2-laminated slab, a 3-bulge, a 4-groove, 5-embedded bars, 6-reserved dowel bar pipelines, 7-grouting holes, 8-notches, 9-rectangular grooves and 10-waterproof materials.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
As shown in fig. 1-5, this embodiment provides a two-way forced close-spliced laminated slab connection structure, including laminated slab 1 and laminated slab 2, laminate slab 1 with the inboard side of laminated slab 2 is spliced, specifically, one side of laminated slab 1 is provided with protruding 3, one side of laminated slab 2 is provided with recess 4, protruding 3 is used for inserting in recess 4, protruding 3 with recess 4 looks adaptation, protruding 3 with recess 4 interlock setting.
The embedded steel bars 5 are embedded in the first laminated plate 1, one ends of the embedded steel bars 5 are embedded in the first laminated plate 1, and the other ends of the embedded steel bars 5 horizontally extend out of the protruding portions 3.
And a reserved dowel bar pipeline 6 is arranged on the second laminated plate 2, and the reserved dowel bar pipeline 6 is communicated with the groove 4. Specifically, the reserved dowel bar pipeline 6 is located inside the second superimposed sheet 2, the reserved dowel bar pipeline 6 is a horizontal pipeline, and the outer end of the reserved dowel bar pipeline 6 is communicated with the inner side of the groove 4. After the embedded bars 5 extend into the grooves 4, the embedded bars are just inserted into the reserved inserted bar pipelines 6.
In this embodiment, a plurality of protrusions 3 are disposed at intervals on one side of the first laminated plate 1, a plurality of grooves 4 are disposed at intervals on one side of the second laminated plate 2 correspondingly, each protrusion 3 is inserted into a corresponding groove 4, and insertion and splicing are achieved between the first laminated plate 1 and the second laminated plate 2. Each protrusion 3 is respectively provided with one embedded steel bar 5, each groove 4 is respectively communicated with one reserved inserted steel bar pipeline 6, and each embedded steel bar 5 is inserted into the corresponding reserved inserted steel bar pipeline 6.
Further, a plurality of grouting holes 7 are formed in the top surface of the second laminated plate 2 at intervals, the grouting holes 7 are vertically formed, the lower ends of the grouting holes 7 are respectively communicated with one reserved dowel bar pipeline 6, grouting is conducted in the reserved dowel bar pipeline 6 from the grouting holes 7, slurry is filled in the reserved dowel bar pipeline 6, and after the slurry is solidified, the embedded bars 5 are connected with the second laminated plate 2.
Furthermore, a plurality of notches 8 are formed at intervals at the top of the plate side of the second laminated plate 2, the notches 8 are communicated with the corresponding grooves 4, and due to the fact that the notches 8 are formed, the groove wall widths of the two sides of the grooves 4 are different, the grouting holes 7, the reserved dowel bar pipelines 6, the grooves 4 and the notches 8 are sequentially communicated to form a channel, after grouting slurry from the grouting holes 7, the slurry can enter the reserved dowel bar pipelines 6 and the grooves 4, when the slurry overflows from the notches 8, the slurry is filled in the whole channel, and therefore the slurry between the second laminated plate 2 and the first laminated plate 1 can be guaranteed to be filled tightly, and connection is reliable. At this time, the lower part of the second 2-plate side of the laminated plate and the lower part of the first 1-plate side of the laminated plate are directly and seamlessly spliced.
Further, in order to ensure the waterproof effect of the integrated plate bottom after the second laminated plate 2 and the first laminated plate 1 are spliced, a rectangular groove 9 is formed in the bottoms of the second laminated plate 2 and the first laminated plate 1 respectively, the rectangular grooves 9 on the second laminated plate 2 and the first laminated plate 1 are spliced in a butt joint mode to form a sealing groove, waterproof materials 10 such as epoxy mortar are filled in the sealing groove, and the spliced seam at the bottoms of the second laminated plate 2 and the first laminated plate 1 is sealed.
In the two-way forced close-spliced slab connecting structure, the splice between the first spliced slab 1 and the second spliced slab 2 is not a straight joint, but is an inserted and spliced structure formed by inserting a plurality of bulges 3 which are arranged at intervals into a groove 4, and the splice between the first spliced slab 1 and the second spliced slab 2 is a complex broken line, according to the structure, embedded bars 5 horizontally extend from the bulges 3 and are inserted into reserved joint bar pipelines 6 on the second spliced slab 2, the embedded bars 5 extend into the second spliced slab 2, then grouting holes 7 are skillfully designed on the second spliced slab 2, the reserved joint bar pipelines 6 are purposefully grouted, and as the top of the side of the second spliced slab 2 is provided with notches 8 which are communicated with the groove 4, the groove 4 is communicated with the reserved joint bar pipelines 6, after grouting from the grouting holes 7, grouting is stopped after overflowing from the notches 8, the joint between the first spliced slab 1 and the second spliced slab 2 is increased, and the first spliced slab is connected by the slurry between the first spliced slab and the second spliced slab 2, and the second spliced slab is further connected by the rigid joint structure formed by matching the slurry between the first spliced slab and the second spliced slab 2. Compared with the prior close-spliced seam which is a straight seam and has no rib-out on the plate side, the utility model changes the form of the spliced seam, sets the embedded steel bars 5, designs the inserting type structure form of the first plate side and the second plate side of the laminated plate, increases the connection strength between the laminated plates, and ensures that the laminated plate is not easy to crack along the spliced seam. Compared with the existing post-pouring strip joint mode, the method has the advantages that the laminated plates are spliced and then grouted, the formwork is not required to be erected, the construction efficiency is high, the construction quality is high, the cost of erecting the formwork is saved, and the construction cost is reduced.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a close superimposed sheet connection structure of two-way atress which characterized in that:
The plate-side splicing device comprises a first laminated plate and a second laminated plate, wherein the first laminated plate and the plate side of the second laminated plate are spliced, a protrusion is arranged on one side of the first laminated plate, a groove is formed on one side of the second laminated plate, and the protrusion is inserted into the groove;
An embedded connecting piece is embedded in the first laminated plate, and one end of the embedded connecting piece extends out of the front end of the protrusion; a reserved dowel bar pipeline is arranged in the second superimposed sheet and is communicated with the groove;
A grouting hole is formed in the top surface of the second laminated plate, the grouting hole is communicated with the reserved dowel bar pipeline, and the grouting hole is used for grouting slurry;
and a notch is formed in the top of the plate side of the second laminated plate and communicated with the groove.
2. The bi-directional stress closely-spliced slab connecting structure according to claim 1, wherein:
The grouting holes, the reserved dowel bar pipelines, the grooves and the gaps are sequentially communicated to form a channel.
3. The bi-directional stress closely-spliced slab connecting structure according to claim 1, wherein:
Rectangular grooves are formed in the bottoms of the two superimposed sheets and the first plate side of the superimposed sheet, the two superimposed sheets and the rectangular grooves on the first superimposed sheet are in butt joint and are spliced to form a sealing groove, and waterproof materials are filled in the sealing groove.
4. A bi-directional stress closely-spliced plate connecting structure according to claim 3, wherein:
The waterproof material adopts epoxy mortar.
5. The bi-directional stress closely-spliced slab connecting structure according to claim 1, wherein:
The reserved dowel bar pipeline is a horizontal pipeline, and one end of the reserved dowel bar pipeline is communicated with the groove.
6. The bi-directional stress closely-spliced slab connecting structure according to claim 5, wherein:
The embedded connecting piece is an embedded steel bar, one end of the embedded steel bar is embedded in the first laminated plate, and the other end of the embedded steel bar horizontally extends out of the protruding part and is inserted into the reserved dowel bar pipeline.
7. The bi-directional stress closely-spliced slab connecting structure according to claim 1, wherein:
A plurality of protrusions are arranged on one side of the first laminated plate at intervals, a plurality of grooves are correspondingly arranged on one side of the second laminated plate at intervals, and the protrusions are inserted into the corresponding grooves.
8. The bi-directional stress closely-spliced slab connecting structure according to claim 7, wherein:
The first laminated plate is embedded with a plurality of embedded connectors, each protrusion is correspondingly provided with one embedded connector, each groove is correspondingly communicated with one reserved dowel bar pipeline, and the embedded connectors are inserted into the corresponding reserved dowel bar pipelines.
9. The bi-directional stress closely-spliced slab connecting structure according to claim 8, wherein:
And a plurality of grouting holes are formed in the top surface of the second laminated plate at intervals, and the grouting holes are communicated with the corresponding reserved dowel bar pipelines.
10. The bi-directional stress closely-spliced slab connecting structure according to claim 9, wherein:
The grouting holes are vertical holes which are vertically formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420555383.8U CN222614652U (en) | 2024-03-21 | 2024-03-21 | Two-way atress close-spliced laminated slab connection structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420555383.8U CN222614652U (en) | 2024-03-21 | 2024-03-21 | Two-way atress close-spliced laminated slab connection structure |
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| Publication Number | Publication Date |
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| CN222614652U true CN222614652U (en) | 2025-03-14 |
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| CN202420555383.8U Active CN222614652U (en) | 2024-03-21 | 2024-03-21 | Two-way atress close-spliced laminated slab connection structure |
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| CN (1) | CN222614652U (en) |
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