CN216616471U - One-way superimposed sheet with welded structure - Google Patents
One-way superimposed sheet with welded structure Download PDFInfo
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- CN216616471U CN216616471U CN202123237589.1U CN202123237589U CN216616471U CN 216616471 U CN216616471 U CN 216616471U CN 202123237589 U CN202123237589 U CN 202123237589U CN 216616471 U CN216616471 U CN 216616471U
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Abstract
The utility model discloses a one-way laminated slab with a welded structure, and belongs to the technical field of assembly type buildings. The one-way laminated slab with the welding structure comprises a laminated slab body and at least one metal embedded part, wherein the metal embedded part is arranged in the laminated slab body and close to the lower side edge, at least part of the metal embedded part is exposed out of the lower side edge of the laminated slab body, and the lower side surface of the metal embedded part is level to the lower side surface of the laminated slab body; the part that the metal embedded part exposes in superimposed sheet body downside border is connecting portion, and connecting portion are used for providing welded basis between one-way superimposed sheet and the one-way superimposed sheet for eliminate the piece through the welded mode between the adjacent one-way superimposed sheet, need not fill mortar/mortar in the piece, eliminated the mortar layer/mortar layer be heated, the deformation after the moisture this cause whitewash layer easy fracture, the reason of swell, make one-way superimposed sheet piece department can keep higher roughness for a long time.
Description
Technical Field
The utility model relates to the technical field of assembly type buildings, in particular to a one-way laminated slab with a welding structure.
Background
In the field of fabricated buildings, the laminated slabs are fabricated integral slabs formed by laminating factory-prefabricated slabs and cast-in-place reinforced concrete layers, are divided into unidirectional laminated slabs and bidirectional laminated slabs, and are suitable for high-rise buildings and large-bay buildings with high requirements on overall rigidity. The two-way composite slab is characterized in that the two-way composite slab is a composite slab with connecting steel bars arranged on the plate sides, the connecting steel bars of two adjacent two-way composite slabs are mutually inserted during construction, the overlapping length of the connecting steel bars is not less than 10d after the connecting steel bars are inserted into the two sides, and d is the diameter of the connecting steel bars; after the two-way superimposed sheet is spliced, the seam is processed in a post-pouring belt mode and is formed into an integral seam, and the lower side surface of the two-way superimposed sheet is not prone to cracking, bulging and the like due to the integral seam between the two-way superimposed sheets.
Compared with a bidirectional composite slab, the unidirectional composite slab adopts the separated joint, namely after the unidirectional composite slab is densely spliced, the unidirectional composite slab is not provided with connecting steel bars on one side of the spliced joint, and after the cast-in-place layer is poured, the board sides of the unidirectional composite slab are not connected. Therefore, in the normal use process, the floor structure at the splicing seams of the unidirectional laminated slab is easy to crack, bulge and the like, and the flatness of the lower side surface of the floor structure is reduced, so that the appearance is reduced.
To solve the above problems, the prior art discloses some solutions. For example, chinese patent application No. 2018211440761 discloses various prefabricated floors, prefabricated floor splicing structures and laminated floors. The surface of the splicing end of the prefabricated floor slab is provided with an inner groove, and after the adjacent prefabricated floor slabs are spliced, the adjacent inner grooves are used for installing and fixing a connecting plate. This application has improved the structural strength of piece department through the mode of at recess internal fixation connecting plate, improves the holistic rigidity of floor structure, but the border department of connecting plate and prefabricated floor recess can form the gap, and the floor structure of this gap department, especially whitewash the layer, phenomenons such as fracture, swell still take place easily.
For another example, chinese patent application No. 2020225598941 discloses a joint structure of tight-spliced laminated slabs having embedded parts, in which embedded parts are respectively provided on end surfaces of adjacent laminated slabs that are spliced to form a joint, and the embedded parts corresponding to the adjacent laminated slabs are fixedly connected to each other to form a rigid connection structure at the joint. This application utilizes the built-in fitting that one-way superimposed sheet board edge department set up to realize connecting, and it is only to improve the joint strength between the one-way superimposed sheet in essence, can only avoid the fracture that floor stress brought.
Therefore, after the unidirectional composite slab in the prior art is densely spliced and poured to form a floor slab, a gap perpendicular to the slab surface is still formed on the lower side surface, and the thickness of the painting layer at the gap is higher than that of the painting layers at other positions of the spliced seam, so that after the floor slab is heated and damped, the expansion and deformation degrees of the painting layers are greatly different, and finally, the spliced seam of the unidirectional composite slab is easy to crack and bulge.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
The utility model aims to overcome the defects that a painting layer is easy to crack and bulge at the joint of a one-way laminated slab in the prior art, and provides the one-way laminated slab with a welding structure, aiming at reducing the probability that the painting layer cracks and bulges at the joint of the one-way laminated slab.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the utility model is as follows:
the utility model relates to a one-way laminated slab with a welding structure, which comprises a laminated slab body and at least one metal embedded part, wherein the metal embedded part is arranged in the laminated slab body and close to the lower side edge, at least part of the metal embedded part is exposed out of the lower side edge of the laminated slab body, and the lower side surface of the metal embedded part is level to the lower side surface of the laminated slab body; the part of the metal embedded part exposed out of the lower side edge of the laminated slab body is a connecting part, and the connecting part is used for providing a foundation for welding the unidirectional laminated slab and the unidirectional laminated slab.
Further, a step structure is arranged on the lower side surface of the laminated slab body at a position close to the metal embedded part; the lower side face of the metal embedded part is flush with the concave plane of the step structure, but not the lower side face of the laminated slab body.
Further, two sides of the laminated slab body, which are not provided with the connecting steel bars, are splicing edges, and the lower edges of the splicing edges are provided with at least one metal embedded part.
Furthermore, only one metal embedded part is arranged on the lower edge of the splicing edge, and the metal embedded part completely covers the lower edge of the splicing edge along the length direction of the splicing edge.
Furthermore, the cross section of the metal embedded part is rectangular and is made of steel; and the outer side surface of the metal embedded part is level to the outer side surface of the splicing edge.
Furthermore, a notch for welding is formed in the metal embedded part, and the notch is located on the lower edge of the outer side of the metal embedded part and is arranged along the length direction of the lower edge of the outer side of the metal embedded part.
Furthermore, a plurality of notches are formed in the metal embedded part and distributed along the length direction of the metal embedded part; the notch groove is used for fixing the bound steel wires so as to be matched with a side die in the molding process of the unidirectional laminated slab to realize the fixation of the metal embedded part.
Furthermore, a plurality of connecting holes are formed in the outer side surface of the metal embedded part which is exposed out of the laminated slab body, and internal threads are formed in the connecting holes; the connecting holes are used for being matched with the connecting bolts so as to be matched with the side die in the forming process of the one-way laminated slab to realize the fixation of the metal embedded part.
Furthermore, a plurality of anchoring steel bars are arranged on the metal embedded part, and the anchoring steel bars are distributed along the length direction of the metal embedded part.
Further, the anchoring steel bars are bound and fixed with the transverse steel bars and/or the longitudinal steel bars in the laminated plate body.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:
(1) the one-way laminated slab with the welding structure comprises a laminated slab body and at least one metal embedded part, wherein the metal embedded part is arranged in the laminated slab body and close to the lower side edge, at least part of the metal embedded part is exposed out of the lower side edge of the laminated slab body, and the lower side surface of the metal embedded part is level to the lower side surface of the laminated slab body; the part that the metal embedded part exposes in superimposed sheet body downside border is connecting portion, and connecting portion are used for providing welded basis between one-way superimposed sheet and the one-way superimposed sheet for eliminate the piece through the welded mode between the adjacent one-way superimposed sheet, need not fill mortar/mortar in the piece, eliminated the mortar layer/mortar layer be heated, the deformation after the moisture this cause whitewash layer easy fracture, the reason of swell, make one-way superimposed sheet piece department can keep higher roughness for a long time.
(2) In the utility model, the lower side surface of the laminated slab body is provided with a step structure at a position close to the metal embedded part; the downside of metal built-in fitting is flat mutually with the concave plane of stair structure, and not flat mutually with the downside of superimposed sheet body, therefore in this stair structure department, do not have narrower piece, when providing anti net mounted position that splits, also can eliminate the mortar layer/mortar layer and be heated, warp this reason that leads to whitewashing layer easy fracture, swell behind the tide for one-way superimposed sheet piece department can keep higher roughness for a long time.
(3) According to the laminated slab, the metal embedded part is provided with the plurality of anchoring steel bars, the plurality of anchoring steel bars are distributed along the length direction of the metal embedded part, and the anchoring steel bars are bound and fixed with the transverse steel bars and/or the longitudinal steel bars in the laminated slab body, so that the metal embedded part can be connected with the concrete structure of the laminated slab body through the anchoring steel bars, and the connection strength between the metal embedded part and the laminated slab body is improved.
Drawings
Figure 1 is a schematic structural view of a floor structure of the present invention;
FIG. 2 is a schematic structural view of a unidirectional laminate of the present invention;
FIG. 3 is a schematic structural view of a metallic embedment of the present invention.
Detailed Description
For a further understanding of the utility model, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
The structure, proportion, size and the like shown in the drawings are only used for matching with the content disclosed in the specification, so that the person skilled in the art can understand and read the description, and the description is not used for limiting the limit condition of the implementation of the utility model, so the method has no technical essence, and any structural modification, proportion relation change or size adjustment still falls within the scope of the technical content disclosed by the utility model without affecting the effect and the achievable purpose of the utility model. In addition, the terms "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the relative positions may be changed or adjusted without substantial technical changes.
Referring to fig. 1, the unidirectional laminated slab 100 of the present embodiment specifically includes a laminated slab body and at least one metal embedded part 110. The metal embedded parts 110 are disposed in the unidirectional composite slab 100, and at least a portion of the metal embedded parts 110 can be exposed to an edge of the lower side of the unidirectional composite slab 100, specifically, an edge of the unidirectional composite slab 100 adjacent to the unidirectional composite slab 100. The part of the metal embedded part 110 exposed out of the lower edge of the unidirectional composite slab 100 is a connecting part, the lower side surface of the connecting part is flush with the lower side surface of the unidirectional composite slab, and the connecting part is used for providing a welding basis.
More specifically, the unidirectional composite slabs 100 on both sides of the floor slab may have metal embedded parts 110 near the edges of the inner and lower sides, and the metal embedded parts 110 may be exposed at the edges of the inner and lower sides of the composite slab body; the one-way composite slab 100 located in the middle of the floor slab may have a metal embedded part 110 at the lower edge of the side where the connecting steel bars are not located, that is, the one-way composite slab 100 may have one metal embedded part 110 at each side corresponding to the other two one-way composite slabs 100 on the left and right. Of the two metal embedded parts 110, one metal embedded part 110 is located on the left side, and the connecting part completely covers the left edge of the lower side of the unidirectional laminated slab 100; another metal embedment member 110 is positioned at the right side, and the connecting portion entirely covers the right edge of the lower side of the unidirectional laminate 100.
Therefore, referring to fig. 2, in the present embodiment, after a plurality of unidirectional laminates are closely joined, the joints between the unidirectional laminates 100 and the unidirectional laminates 100 are filled up by welding, that is, the joints between the unidirectional laminates 100 are eliminated by welding the metal embedded parts 110 of the adjacent unidirectional laminates 100.
The welding seam 112 is formed between the adjacent unidirectional composite slabs 100 in a welding mode, and the abutted seam between the adjacent unidirectional composite slabs 100 is eliminated, so that on one hand, the connection strength between the unidirectional composite slabs 100 and the unidirectional composite slabs 100 can be improved; on the other hand, even if mortar is filled on the lower side surface of the floor slab, the mortar layer with different thickness is not formed at the joint between the unidirectional composite slab 100 and the unidirectional composite slab 100, so that after the floor slab is heated and affected with damp, the plastering layer 300 is not easy to generate cracks and bulges due to different expansion degrees of the mortar layer, the plastering layer 300 on the lower side surface can keep higher flatness for a long time when the floor slab after the joint is treated by adopting the treatment method of the embodiment, and the integral appearance of the structure of the floor slab cast-in-place layer 200, the unidirectional composite slab 100 and the plastering layer 300 is improved.
As a further optimization of the present embodiment, the lower side of the unidirectional laminated slab 100 may be provided with a step structure at a position corresponding to the metal embedded part, and the lower side of the metal embedded part 110 may be flush with the concave plane 102 of the step structure 101. After two adjacent unidirectional superimposed sheets 100 are closely spliced, welding treatment is carried out on the connecting parts of the metal embedded parts 110 of the two unidirectional superimposed sheets 100, and a spliced seam is formed after welding, so that the step structures of the two unidirectional superimposed sheets 100 form a mounting groove together, and the mounting groove is used for embedding the anti-cracking net 310. The anti-crack net 310 can further improve the anti-crack effect of the plastering layer 300. The anti-cracking net 310 may be made of stainless steel, resin, or any other material capable of improving the anti-cracking effect of the painting layer 300.
As a further optimization of this embodiment, two sides of the laminated slab body not provided with the connecting reinforcing bars are splicing edges, the lower edge of the splicing edge may be provided with at least one metal embedded part 110, or may be provided with a plurality of metal embedded parts 110, and the plurality of metal embedded parts 110 may be arranged along the length direction of the splicing edge.
Further, the lower edge of the splicing edge may be provided with only one metal embedded part 110, and the metal embedded part 110 may be disposed along the length direction of the splicing edge to completely cover the lower edge of the splicing edge, so that when two adjacent unidirectional composite slabs 110 are welded, the welding may be performed through the metal embedded parts 110 on the splicing edge of the unidirectional composite slabs 110.
As an example of the metal embedded part 110 in the present embodiment, the cross section of the metal embedded part 110 is rectangular, and may be circular, or L-shaped. When the cross section of the metal embedded part 110 is rectangular, the metal embedded part 110 may be square steel; when the cross section of the metal embedded part 110 is circular, the metal embedded part 110 can be round steel; when the cross section of the metal embedment 110 is L-shaped, the metal embedment 110 may be angle iron.
In addition, when the cross section of the metal embedded part 110 is rectangular or L-shaped, the outer side surface of the metal embedded part 110 can be flush with the outer side surface of the splicing edge, thereby facilitating welding.
As a further optimization of this example, referring to fig. 2, in order to facilitate the welding process of the metal embedment 110 of the two adjacent unidirectional laminates 100, the metal embedment 110 may be provided with a notch 113 at the position of the connecting portion, and the notch 113 may be provided along the length direction of the metal embedment 110, that is, along the side of the unidirectional laminate 100 where no connecting reinforcement is provided. After two adjacent unidirectional composite plates 100 are closely spliced, the notches 113 on the metal embedded parts 110 form a welding opening together.
Further preferably, the metal embedded part 110 may be provided with an anchoring bar 111, the anchoring bar 111 is used to improve the connection strength between the metal embedded part 110 and the concrete of the unidirectional laminated slab 100, and the shape of the anchoring bar 111 is not limited.
In addition, in order to improve the intensity of being connected between anchor reinforcing bar 111 and the superimposed sheet body, anchor reinforcing bar 111 is fixed with this internal horizontal reinforcement of superimposed sheet, also can be fixed with this internal vertical reinforcement of superimposed sheet.
In the preparation process of the unidirectional laminated slab 100 of the embodiment, since the concrete is a fluid, the concrete easily enters into the gap between the metal embedded part 110 and the frame, so that the metal embedded part 110 is wrapped, and the welding construction between the unidirectional laminated slab 100 cannot be performed. In addition, the concrete has certain fluidity during the pouring process, and the metal embedded part 110 is easily displaced from the frame under the condition that the metal embedded part is not completely fixed, so that the part of the metal embedded part 110 exposed out of the unidirectional composite slab 100 can only cover one part of one lower edge of the unidirectional composite slab 100, and cannot completely cover one lower edge of the unidirectional composite slab 100, which also leads to the incapability of welding construction among the unidirectional composite slabs 100.
Therefore, as an optimization, referring to fig. 3, the metal embedded part 110 is provided with a plurality of notches 114, and the plurality of notches 114 are distributed along the length direction of the metal embedded part 110; the engraved grooves 114 are used for fixing the banded steel wires to be matched with a side die in the forming process of the unidirectional composite slab 100 to fix the metal embedded parts, so that the metal embedded parts 110 are positioned, and the metal embedded parts 110 are prevented from moving when concrete is poured in the forming process of the unidirectional composite slab 100.
As another optimization mode, the metal embedded part 110 is exposed out of the outer side surface of the laminated slab body and is provided with a plurality of connecting holes, and the connecting holes are provided with internal threads; the connecting holes are used for being matched with connecting bolts so as to be matched with a side die in the forming process of the unidirectional laminated slab 100, and the fixing of the metal embedded part 110 is realized.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the utility model, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the utility model.
Claims (10)
1. The utility model provides an one-way superimposed sheet with welded structure which characterized in that: the composite slab comprises a composite slab body and at least one metal embedded part, wherein the metal embedded part is arranged in the composite slab body and close to the lower side edge, at least part of the metal embedded part is exposed out of the lower side edge of the composite slab body, and the lower side surface of the metal embedded part is level to the lower side surface of the composite slab body; the part of the metal embedded part exposed out of the lower side edge of the laminated slab body is a connecting part, and the connecting part is used for providing a foundation for welding the unidirectional laminated slab and the unidirectional laminated slab.
2. The unidirectional laminated slab with the welded structure as claimed in claim 1, wherein: a step structure is arranged at the position, close to the metal embedded part, of the lower side surface of the laminated slab body; the lower side face of the metal embedded part is flush with the concave plane of the step structure, but not the lower side face of the laminated slab body.
3. A unidirectional laminated plate with a welded structure as claimed in claim 1 or 2, wherein: two sides of superimposed sheet body that do not set up the connecting reinforcement are the concatenation limit, the lower edge on concatenation limit is provided with at least one the metal embedded part.
4. A unidirectional laminated plate with a welded structure as claimed in claim 3, wherein: the lower edge of the splicing edge is only provided with one metal embedded part, and the metal embedded part completely covers the lower edge of the splicing edge along the length direction of the splicing edge.
5. A unidirectional laminated plate with a welded structure as claimed in claim 3, wherein: the cross section of the metal embedded part is rectangular and is made of steel; and the outer side surface of the metal embedded part is level to the outer side surface of the splicing edge.
6. A unidirectional laminated plate with a welded structure as claimed in claim 5, wherein: the metal embedded part is provided with a notch for welding, and the notch is positioned on the lower edge of the outer side of the metal embedded part and is arranged along the length direction of the lower edge of the outer side of the metal embedded part.
7. A unidirectional laminated plate with a welded structure as claimed in claim 5, wherein: the metal embedded part is provided with a plurality of notches, and the notches are distributed along the length direction of the metal embedded part; the notch groove is used for fixing the bound steel wires so as to be matched with a side die in the molding process of the unidirectional laminated slab to realize the fixation of the metal embedded part.
8. A unidirectional laminated plate with a welded structure as claimed in claim 5, wherein: the outer side surface of the laminated slab body, which is exposed out of the metal embedded part, is provided with a plurality of connecting holes, and the connecting holes are provided with internal threads; the connecting holes are used for being matched with the connecting bolts so as to be matched with the side die in the forming process of the one-way laminated slab to realize the fixation of the metal embedded part.
9. The unidirectional laminated slab with the welded structure as claimed in claim 5, wherein: the metal embedded part is provided with a plurality of anchoring reinforcing steel bars, and the anchoring reinforcing steel bars are distributed along the length direction of the metal embedded part.
10. A unidirectional laminated plate with a welded structure as claimed in claim 9, wherein: and the anchoring steel bars are bound and fixed with the transverse steel bars and/or the longitudinal steel bars in the laminated plate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123237589.1U CN216616471U (en) | 2021-12-21 | 2021-12-21 | One-way superimposed sheet with welded structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123237589.1U CN216616471U (en) | 2021-12-21 | 2021-12-21 | One-way superimposed sheet with welded structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216616471U true CN216616471U (en) | 2022-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123237589.1U Active CN216616471U (en) | 2021-12-21 | 2021-12-21 | One-way superimposed sheet with welded structure |
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| CN (1) | CN216616471U (en) |
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- 2021-12-21 CN CN202123237589.1U patent/CN216616471U/en active Active
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