CN215563719U

CN215563719U - Superimposed sheet surface enhancement mode structure

Info

Publication number: CN215563719U
Application number: CN202121629085.1U
Authority: CN
Inventors: 皮安良; 王本权; 李建刚
Original assignee: Suqian Hetianxia Building Materials Technology Co ltd
Current assignee: Suqian Hetianxia Building Materials Technology Co ltd
Priority date: 2021-07-17
Filing date: 2021-07-17
Publication date: 2022-01-18
Anticipated expiration: 2031-07-17

Abstract

The utility model relates to a superimposed sheet surface enhancement mode structure is used in the field of prefabricated building materials, and it is including setting up the inner groovy on the prefabricated plate surface, the inner groovy includes horizontal recess and vertical recess, horizontal recess extends along the width direction of prefabricated plate, just horizontal recess has a plurality ofly and follows the length direction interval distribution of prefabricated plate, vertical recess extends along the length direction of prefabricated plate, just vertical recess has a plurality ofly and follows the width direction interval distribution of prefabricated plate, horizontal recess with vertical crossing and intercommunication each other of vertical recess. This application has the effect that improves the bonding strength between cast-in-place concrete layer and the precast slab surface.

Description

Superimposed sheet surface enhancement mode structure

Technical Field

The application relates to the field of prefabricated building materials, in particular to a surface-enhanced structure of a laminated slab.

Background

The laminated slab is an assembled integral floor slab formed by laminating prefabricated slabs and cast-in-place reinforced concrete layers. The composite slab has the advantages of both prefabricated and cast-in-place floor slabs and is widely suitable for high-rise buildings and large-bay buildings with high requirements on overall rigidity.

Chinese patent with publication number CN210562908U discloses a prefabricated reinforced concrete composite slab, which comprises a prestressed concrete composite slab, a high-strength prestressed steel wire and a transverse perforated steel bar, wherein the high-strength prestressed steel wire is longitudinally embedded in the prestressed concrete composite slab, the transverse perforated steel bar transversely penetrates through a convex rib of the prestressed concrete composite slab, and the prestressed concrete composite slab comprises a composite slab splicing male slab and a composite slab splicing female slab; one end of the laminated slab splicing male plate and one end of the laminated slab splicing female plate are overlapped and spliced with each other; the transverse perforated steel bars sequentially and transversely penetrate through the convex ribs of the laminated slab splicing male plate and the convex ribs of the laminated slab splicing female plate, and a cast-in-place concrete layer is poured on the prestressed concrete laminated slab.

In view of the above-mentioned related art, the inventor believes that the cast-in-place concrete layer is cast on the surface of the precast slab, and the bonding strength between the cast-in-place concrete layer and the precast slab is low.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the bonding strength between a cast-in-place concrete layer and the surface of a precast slab is low, the application provides a surface enhanced structure of a laminated slab.

The application provides a superimposed sheet surface enhancement mode structure adopts following technical scheme:

a surface-enhanced structure of a laminated slab comprises an inner groove arranged on the surface of a prefabricated slab, wherein the inner groove comprises a transverse groove and a longitudinal groove, the transverse groove extends along the width direction of the prefabricated slab, the transverse groove is provided with a plurality of grooves and is distributed at intervals along the length direction of the prefabricated slab, the longitudinal groove extends along the length direction of the prefabricated slab, the longitudinal groove is provided with a plurality of grooves and is distributed at intervals along the width direction of the prefabricated slab, and the transverse groove and the longitudinal groove are perpendicularly intersected and are mutually communicated.

Through adopting above-mentioned technical scheme, the inner groovy comprises horizontal recess and vertical recess, and the inner groovy has not only increased cast-in-place concrete layer and precast slab surface's area of contact, has increased the firmness on precast slab surface on cast-in-place concrete layer moreover, improves the bonding strength between cast-in-place concrete layer and the precast slab surface for the superimposed sheet accords with the requirement of energy-conserving green building materials.

Optionally, the prefabricated plate is provided with expansion grooves on the inner walls of the two sides of the transverse groove and the longitudinal groove.

By adopting the technical scheme, the expansion groove can increase the bonding firmness of the cast-in-place concrete layer on the surface of the precast slab.

Optionally, the surface of the prefabricated plate is provided with a plurality of pouring holes communicated with the expansion groove.

By adopting the technical scheme, the cast-in-place concrete layer can be poured into the expansion groove through the pouring hole, so that the compactness of the cast-in-place concrete layer in the expansion groove is improved, and the firmness of the cast-in-place concrete layer on the surface of the precast slab is improved.

Optionally, a plurality of reinforcing ribs are arranged between two expansion grooves in the same transverse groove and between two expansion grooves in the same longitudinal groove at intervals, and the reinforcing ribs and the prefabricated slab are integrally cast.

By adopting the technical scheme, the reinforcing ribs support the two expansion grooves, the integral stability of the transverse grooves and the longitudinal grooves is improved, and meanwhile, the bonding strength between the cast-in-place concrete layer and the precast slab can also be improved.

Optionally, the reinforcing rib is provided with an auxiliary rib between the two expansion grooves, and the auxiliary rib is of a structure with a middle arched part and two inclined ends.

By adopting the technical scheme, the auxiliary ribs are used together with the reinforcing ribs, and the bonding strength between the cast-in-place concrete layer and the precast slab can also be improved.

Optionally, the auxiliary rib sleeves the reinforcing rib, a connecting rib is arranged between two ends of the auxiliary rib, and the connecting rib is welded and fixed with the auxiliary rib and the reinforcing rib.

Through adopting above-mentioned technical scheme, the splice bar is used for connecting the both ends of supplementary muscle, guarantees the structural strength of supplementary muscle self for supplementary muscle is difficult for taking place deformation.

Optionally, two inclined ribs are arranged inside the vertical intersecting position of the transverse groove and the longitudinal groove in a crossed manner, and the two inclined ribs and the prefabricated slab are integrally cast and formed.

By adopting the technical scheme, the two inclined ribs can support the vertical crossed positions of the transverse groove and the longitudinal groove and can improve the bonding strength between the cast-in-place concrete layer and the precast slab.

Optionally, an inclined hopper groove is formed in the position, perpendicular to and intersected with the longitudinal groove, of the surface of the prefabricated plate, and the inclined hopper groove is communicated with the transverse groove and the longitudinal groove.

Through adopting above-mentioned technical scheme, be convenient for cast-in-place concrete layer through the oblique fill groove pour to horizontal recess and vertical recess vertically crossing inside the position.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the inner grooves are formed by transverse grooves and longitudinal grooves, the contact area between the cast-in-place concrete layer and the surface of the prefabricated plate is increased, the firmness of the cast-in-place concrete layer on the surface of the prefabricated plate is increased, the bonding strength between the cast-in-place concrete layer and the surface of the prefabricated plate is improved, and the laminated plate meets the requirements of energy-saving green building materials;

2. the reinforcing ribs are used for supporting the two expansion grooves, so that the integral stability of the transverse grooves and the longitudinal grooves is improved, and the bonding strength between a cast-in-place concrete layer and the precast slab can be improved;

3. the two inclined ribs can support the vertical crossed position of the transverse groove and the longitudinal groove and can improve the bonding strength between the cast-in-place concrete layer and the precast slab.

Drawings

FIG. 1 is a schematic view of a laminate surface reinforcement structure in an embodiment of the present application.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Reference numerals: 1. prefabricating a slab; 2. an inner groove; 21. a transverse groove; 22. a longitudinal groove; 3. an expansion slot; 4. pouring holes; 5. reinforcing ribs; 6. auxiliary ribs; 7. connecting ribs; 8. a diagonal rib; 9. a sloping bucket groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses superimposed sheet surface enhancement mode structure. Referring to fig. 1 and 2, the surface-enhanced structure of the laminated slab comprises an inner groove 2 arranged on the surface of a prefabricated slab 1, wherein the inner groove 2 is composed of a plurality of transverse grooves 21 and a plurality of longitudinal grooves 22, the plurality of transverse grooves 21 extend along the width direction of the prefabricated slab 1, and the plurality of transverse grooves 21 are distributed at equal intervals along the length direction of the prefabricated slab 1; the plurality of longitudinal grooves 22 extend along the length direction of the prefabricated plate 1, and the plurality of longitudinal grooves 22 are distributed at equal intervals along the width direction of the prefabricated plate 1; therefore, the transverse grooves 21 and the longitudinal grooves 22 intersect perpendicularly at the surface of the prefabricated panel 1 and communicate with each other.

Through the transverse grooves 21 and the longitudinal grooves 22, not only the contact area between the cast-in-place concrete layer and the surface of the precast slab 1 is increased, but also the firmness of the cast-in-place concrete layer on the surface of the precast slab 1 is increased, so that the bonding strength between the cast-in-place concrete layer and the surface of the precast slab 1 is improved.

Referring to fig. 2, the expansion grooves 3 are symmetrically arranged on the two side groove walls of the transverse groove 21 on the precast slab 1, and the expansion grooves 3 are also symmetrically arranged on the two side groove walls of the longitudinal groove 22 on the precast slab 1, so that the gripping force of the cast-in-place concrete layer on the surface of the precast slab 1 can be improved through the expansion grooves 3, and the combination firmness of the cast-in-place concrete layer on the surface of the precast slab 1 is further improved. In addition, a plurality of pouring holes 4 communicated with the expansion grooves 3 are formed in the surface of the precast slab 1 along the extending direction of the transverse groove 21 and the longitudinal groove 22, and a cast-in-place concrete layer can be poured into the expansion grooves 3 through the pouring holes 4, so that the compactness of the cast-in-place concrete layer in the expansion grooves 3 is improved, and the combination firmness of the cast-in-place concrete layer on the surface of the precast slab 1 is improved.

Referring to fig. 2, a plurality of reinforcing ribs 5 are arranged between the expansion slots 3 on the two sides in each transverse groove 21 at equal intervals, a plurality of reinforcing ribs 5 are also arranged between the expansion slots 3 on the two sides in each longitudinal groove 22 at equal intervals, the reinforcing ribs 5 are integrally cast with the precast slab 1, and the reinforcing ribs 5 play a role in supporting the expansion slots 3 on the two sides, so that the overall stability of the transverse grooves 21 and the longitudinal grooves 22 is improved, the gripping force of a cast-in-place concrete layer on the surface of the precast slab 1 can be improved, and the bonding strength between the cast-in-place concrete layer and the precast slab 1 is increased.

In addition, all the cover is equipped with supplementary muscle 6 on every reinforcing rib 5, and supplementary muscle 6 is located between the both sides expansion tank 3, and supplementary muscle 6 is middle part hunch-up and the structure that both ends slope was strutted, and the position welding that 6 middle parts of supplementary muscle are hunched on reinforcing rib 5, and the welding has splice bar 7 between the both ends of supplementary muscle 6, and splice bar 7 also welded fastening with reinforcing rib 5 simultaneously, and splice bar 7 is used for strengthening the structural strength of supplementary muscle 6 for supplementary muscle 6 is difficult for taking place to warp. The auxiliary ribs 6 can improve the holding power and the gripping power of the cast-in-place concrete layer on the precast slab 1 and increase the bonding strength between the cast-in-place concrete layer and the precast slab 1.

Referring to fig. 2, two diagonal bars 8 are crosswise arranged in the vertical intersecting position of the transverse groove 21 and the longitudinal groove 22, the two diagonal bars 8 are welded and fixed with each other, the two diagonal bars 8 and the precast slab 1 are integrally cast, and the two diagonal bars 8 can support the vertical intersecting position of the transverse groove 21 and the longitudinal groove 22 and can improve the bonding strength between a cast-in-place concrete layer and the precast slab 1.

Referring to fig. 2, the inclined bucket groove 9 is formed in the surface of the precast slab 1 along the periphery of the position where the transverse groove 21 and the longitudinal groove 22 are vertically intersected, the inclined bucket groove 9 is communicated with the transverse groove 21 and the longitudinal groove 22, and the inclined bucket groove 9 has the function of guiding a cast-in-place concrete layer, so that the cast-in-place concrete layer can be conveniently poured into the position where the transverse groove 21 and the longitudinal groove 22 are vertically intersected.

The implementation principle of the surface enhancement type structure of the laminated slab in the embodiment of the application is as follows: the inner groove 2 is composed of a transverse groove 21 and a longitudinal groove 22, the transverse groove 21 and the longitudinal groove 22 not only increase the contact area of the cast-in-place concrete layer and the surface of the precast slab 1, but also increase the firmness of the cast-in-place concrete layer on the surface of the precast slab 1, and improve the bonding strength between the cast-in-place concrete layer and the surface of the precast slab 1.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A superimposed sheet surface enhancement mode structure which characterized in that: the prefabricated plate comprises an inner groove (2) arranged on the surface of a prefabricated plate (1), wherein the inner groove (2) comprises a plurality of transverse grooves (21) and a plurality of longitudinal grooves (22), the transverse grooves (21) extend along the width direction of the prefabricated plate (1), the plurality of transverse grooves (21) are distributed at intervals along the length direction of the prefabricated plate (1), the plurality of longitudinal grooves (22) extend along the length direction of the prefabricated plate (1), the plurality of longitudinal grooves (22) are distributed at intervals along the width direction of the prefabricated plate (1), and the transverse grooves (21) and the longitudinal grooves (22) are perpendicularly intersected and are communicated with each other.

2. A surface-reinforced structure for plywood according to claim 1 wherein: the prefabricated plate (1) is provided with expansion grooves (3) on the inner walls of the two sides of the transverse groove (21) and the longitudinal groove (22).

3. A surface-reinforced composite structure according to claim 2, wherein: the surface of the precast slab (1) is provided with a plurality of pouring holes (4) communicated with the expansion groove (3).

4. A surface-reinforced composite structure according to claim 2, wherein: a plurality of reinforcing ribs (5) are arranged between the two expansion grooves (3) in the same transverse groove (21) and between the two expansion grooves (3) in the same longitudinal groove (22) at intervals, and the reinforcing ribs (5) and the precast slab (1) are integrally cast.

5. A surface-reinforced composite slab structure according to claim 4, wherein: the reinforcing rib (5) is positioned between the two expansion grooves (3) and is provided with an auxiliary rib (6), and the auxiliary rib (6) is of a structure with the middle arched and two inclined ends propped open.

6. A surface-reinforced composite slab structure according to claim 5, wherein: the auxiliary rib (6) is sleeved on the reinforcing rib (5), a connecting rib (7) is arranged between two ends of the auxiliary rib (6), and the connecting rib (7) is simultaneously welded and fixed with the auxiliary rib (6) and the reinforcing rib (5).

7. A surface-reinforced structure for plywood according to claim 1 wherein: two inclined ribs (8) are arranged in the vertical crossed position of the transverse groove (21) and the longitudinal groove (22) in a crossed mode, and the two inclined ribs (8) and the prefabricated plate (1) are integrally cast and formed.

8. A surface-reinforced structure for plywood according to claim 1 wherein: an inclined hopper groove (9) is formed in the surface of the precast slab (1) and is located at the position where the transverse groove (21) and the longitudinal groove (22) are vertically intersected, and the inclined hopper groove (9) is communicated with the transverse groove (21) and the longitudinal groove (22).