CN217150848U

CN217150848U - Prefabricated fire-resistant concrete composite floor slab

Info

Publication number: CN217150848U
Application number: CN202220080390.8U
Authority: CN
Inventors: 葛威; 李云国; 吴维发; 张晓波
Original assignee: Taizhou East Building Materials Technology Co ltd
Current assignee: Taizhou East Building Materials Technology Co ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-08-09
Anticipated expiration: 2032-01-10

Abstract

The application relates to a prefabricated fire-resistant concrete composite floor slab, which comprises a concrete layer and a plurality of prefabricated floor slabs, wherein the end parts of the prefabricated floor slabs are spliced, and each prefabricated floor slab comprises a main board and a splicing part arranged on one side of the main board; the splicing part comprises at least two splicing strips, and the length direction of the splicing strips is arranged along the extending direction of the edge of the main board; the interval sets up between the adjacent concatenation strip, wherein at least one be provided with on the lateral wall of concatenation strip towards another concatenation strip and hinder the basin, one side that the mainboard deviates from the concatenation strip is provided with the splice groove that is used for holding the concatenation strip, and the quantity of splice groove corresponds with the quantity of concatenation strip. Due to the arrangement of the water blocking grooves and the splicing strips, water is not easy to seep at gaps between the prefabricated floor slabs; the water-swelling water stop strips are arranged, so that the leakage resistance between the prefabricated floor slabs is further improved; and the concrete layer and the prefabricated floor slab are both made of recycled concrete, so that waste concrete is digested, and the development concept of environmental protection is met.

Description

Prefabricated fire-resistant concrete composite floor slab

Technical Field

The utility model relates to a field of building especially relates to a prefabricated fire-resistant concrete coincide floor.

Background

The laminated floor slab is an assembled integral floor slab formed by laminating a prefabricated floor slab and a cast-in-place reinforced concrete layer. The composite floor slab has good integrity, the upper and lower surfaces of the slab are smooth, the decoration of a finish coat is convenient, and the composite floor slab is suitable for high-rise buildings and large-bay buildings with higher requirement on the integral rigidity.

The prefabricated floor slab is formed by pouring recycled concrete, wherein the recycled concrete is formed by crushing, cleaning and grading waste concrete blocks, mixing the crushed, cleaned and graded waste concrete blocks with grading according to a certain proportion, partially or completely replacing natural aggregates (mainly coarse aggregates) such as sand stones and the like, and adding cement, water, reinforcing agents and the like to prepare new concrete, so that the waste concrete blocks are recycled under the condition that the prefabricated floor slab has better strength, the construction waste is reduced, and the prefabricated floor slab is green and environment-friendly; and the composite floor slab made of concrete does not burn and has better fire resistance.

When the composite floor slab is constructed, a plurality of prefabricated floor slabs are usually tiled on the roof, and concrete is poured on the prefabricated floor slabs to form the composite floor slab, but gaps usually exist between the adjacent prefabricated floor slabs, and the water seepage phenomenon between floors easily occurs at the gaps, so that the use of a building is influenced.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem of the easy infiltration of clearance department between the adjacent precast floor slab, this application provides a prefabricated fire-resistant concrete coincide floor slab.

The application provides a pair of prefabricated fire-resistant concrete coincide floor adopts following technical scheme:

a prefabricated fire-resistant concrete composite floor slab comprises a concrete layer and a plurality of prefabricated floor slabs, wherein the end parts of the prefabricated floor slabs are spliced, and each prefabricated floor slab comprises a main board and a splicing part arranged on one side of the main board; the splicing part comprises at least two splicing strips, and the length direction of the splicing strips is arranged along the extending direction of the edge of the main board; the interval sets up between the adjacent concatenation strip, wherein at least one be provided with on the lateral wall of concatenation strip towards another concatenation strip and hinder the basin, one side that the mainboard deviates from the concatenation strip is provided with the splice groove that is used for holding the concatenation strip, the quantity of splice groove corresponds with the quantity of concatenation strip.

Through adopting above-mentioned technical scheme, when the prefabricated floor tiling installation, the notch that will hinder the basin up, the concatenation strip of a prefabricated floor is pegged graft in the splice groove of adjacent prefabricated floor for when leaking, the creep distance of water from one side to the opposite side of prefabricated floor increases, because of hindering the setting of basin simultaneously, makes water easily pile up and is hindering the basin in and be difficult to further flow from the clearance between the adjacent prefabricated floor, thereby reaches better antiseep performance.

Optionally, the cross section of the splicing strip is semicircular, and the straight edge of the semicircle is fixed with the main board.

By adopting the technical scheme, the splicing strips are arranged into a semicircular shape, so that when adjacent prefabricated floor slabs are spliced, two prefabricated floor slabs do not need to be placed on the same plane, and the splicing strips and the splicing grooves are close to each other through movement to enable the splicing strips to be spliced in the splicing grooves; the prefabricated wall board does not need to be moved manually subsequently, so that the splicing strips enter the splicing grooves, and the end parts of the adjacent prefabricated floor slabs are connected conveniently.

Optionally, the water blocking groove is arranged at the joint of the semicircular straight edge and the arc edge.

Through adopting above-mentioned technical scheme, will hinder the basin and set up in the junction of semicircle straight flange and arc limit for in water conveniently gets into the basin that hinders more when the terminal surface gliding of mainboard can be followed, the effect that blocks water is improved.

Optionally, a water-swelling water stop strip is arranged in the water blocking groove.

Through adopting above-mentioned technical scheme, through setting up water swelling sealing rod, water swelling sealing rod has better water absorption performance, and absorbs water its volume after violently expand the clearance between the adjacent prefabricated floor of shutoff, reach better water-proof effects. And through setting up behind the water swelling sealing rod, the notch direction that hinders the basin can need not be injectd for upwards for need not to look over the notch direction that hinders the basin when prefabricated floor installation, thereby make prefabricated floor simple to operate.

Optionally, the main plate includes a support plate and at least one support steel structure embedded in the support plate.

Through adopting above-mentioned technical scheme, the support steel construction forms certain support to the backup pad, improves the bulk strength of mainboard to make the intensity of coincide floor high, improve the building firmness.

Optionally, the support steel construction includes a plurality of fixed frames and the dead lever of being connected a plurality of fixed frames, the dead lever passes a plurality of fixed frames and fixes with the inner wall of a plurality of fixed frames, and the length direction of fixed frame is perpendicular with the plane at fixed frame place, the frame limit that the dead lever was kept away from to fixed frame inlays and establishes in the backup pad, the face of dead lever protrusion backup pad, the length direction of fixed lever is parallel with the face of backup pad.

By adopting the technical scheme, the fixed rods protrude out of the surface of the supporting plate, so that when the prefabricated floor slab is hoisted by the hoisting machine, the hoisting ropes can be fixed on the fixed rods, and the prefabricated floor slab is convenient to hoist. And concrete layer pours the convex one side of dead lever on prefabricated floor for the dead lever inlays and establishes in the concrete layer, makes support steel construction connect prefabricated floor and concrete layer simultaneously, makes the whole relevance of coincide floor improve, thereby improves the intensity of coincide floor.

Optionally, the fixed frame is a triangular annular frame, the frame sides of the triangular annular frame are parallel to each other, and the fixed rod is fixed on the inner wall of the corner of the triangular annular frame.

Through adopting above-mentioned technical scheme, design into triangle-shaped annular with fixed frame, make fixed frame form stable triangular supports, improve the support performance who supports the steel construction.

Optionally, the support steel construction still includes two at least anchor bars, the anchor bar is parallel with the dead lever, and is a plurality of two angles of keeping away from the dead lever on the fixed frame correspond the lateral wall of two fixed anchor bars.

Through adopting above-mentioned technical scheme, the anchor strut connects a plurality of fixed frames fixedly, further improves the whole associativity of a plurality of fixed frames, improves the support intensity that supports the steel construction to improve the intensity of coincide floor.

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

1. due to the arrangement of the water blocking grooves and the splicing strips, water is not easy to seep at gaps between the prefabricated floor slabs;

2. the water-swelling water stop strips are arranged, so that the leakage resistance between the prefabricated floor slabs is further improved;

3. through setting up the support steel construction for the intensity of coincide floor is high, support performance is good, improves the intensity of building.

Drawings

Fig. 1 is an overall schematic view of a laminated floor slab according to an embodiment of the present application.

Figure 2 is an exploded view of a laminated floor slab.

Fig. 3 is an enlarged view of fig. 2 at a, mainly highlighting the position of the water blocking groove.

Fig. 4 is an enlarged view at B of fig. 2, mainly showing the construction of the supporting steel structure.

Description of reference numerals: 1. a concrete layer; 2. prefabricating a floor slab; 21. a main board; 211. a support plate; 212. supporting the steel structure; 2121. a fixing frame; 21211. a triangular annular frame; 2122. fixing the rod; 2123. a reinforcing rod; 22. a splice; 221. splicing the strips; 3. splicing grooves; 4. a water blocking tank; 41. a water stop rod expanding when meeting water.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses prefabricated fire-resistant concrete coincide floor. Referring to fig. 1, the prefabricated fire-resistant concrete composite floor slab includes a concrete layer 1 and a plurality of prefabricated floor slabs 2. A plurality of prefabricated floor 2 tiling are arranged, and the tip concatenation setting of a plurality of prefabricated floor 2. Concrete layer 1 is formed by pouring recycled concrete on a plurality of prefabricated floor slabs 2 that tile, and concrete layer 1 bonds a plurality of prefabricated floor slabs 2 fixedly.

Referring to fig. 2, the prefabricated floor slab 2 includes a main board 21 and a splicing part 22, the splicing part 22 includes two splicing strips 221, the splicing strips 221 fix the end surface of the prefabricated floor slab 2, the two splicing strips 221 are arranged in parallel, and the two splicing strips 221 are arranged at intervals; the length direction of the two splice bars 221 is the same as the length direction of the end edge of the main plate 21. Two splicing grooves 3 for splicing the two splicing strips 221 are formed in one side of the main plate 21, which is far away from the splicing strips 221.

Referring to fig. 3, the cross section of the splicing strip 221 is semicircular, one side of the semicircular straight edge is fixed to the main plate 21, one side of the semicircular arc edge faces the direction away from the main plate 21, the cross section of the inner cavity of the splicing groove 3 is also semicircular, and the inner wall of the splicing groove 3 is attached to the outer wall of the end portion, away from the main plate 21, of the splicing strip 221.

Referring to fig. 3, a water blocking groove 4 is formed in one side of one of the splicing strips 221 facing the other splicing strip 221, and the length direction of the water blocking groove 4 is the same as the length direction of the splicing strip 221. From the section of the splicing strip 221, the water blocking groove 4 is formed at the joint of the straight edge and the arc edge of the semicircle, so that water can conveniently enter the water blocking groove 4 when water leaks from the gap between the adjacent prefabricated floor slabs 2. The water blocking tank 4 can contain a certain amount of liquid therein, so that the liquid is difficult to further leak.

Referring to fig. 2 and 3, a water-swelling water stop strip 41 is fixed in the water blocking tank 4, and the water-swelling water stop strip 41 swells after absorbing water, so that gaps between adjacent prefabricated floor slabs 2 are further sealed and water seepage is prevented.

Referring to fig. 2 and 4, the main plate 21 includes a support plate 211 and two support steel structures 212. The supporting plate 211 is formed by casting and curing recycled concrete. The supporting steel structure 212 is partially embedded in the supporting plate 211 and partially embedded in the concrete layer 1.

Referring to fig. 2 and 4, the support steel structure 212 includes a plurality of fixing frames 2121, one fixing rod 2122, and two reinforcing rods 2123. The fixing frame 2121 is a triangular annular frame 21211, and planes of the plurality of triangular annular frames 21211 are parallel to each other, and frame sides of the triangular annular frames 21211 are parallel to each other. One side of the triangular annular frame 21211 is completely embedded in the supporting plate 211, and the frame side of the triangular annular frame 21211 embedded in the supporting plate 211 is parallel to the plate surface of the supporting plate 211.

Referring to fig. 2 and 3, the triangular ring frame 21211 protrudes from the plate surface of the supporting plate 211 away from the corner of the supporting plate 211, and the protruding direction of the corner is the same as the notch direction of the water blocking groove 4.

Referring to fig. 2 and 4, the fixing rods 2122 have a length direction parallel to the plate surface of the supporting plate 211, and the fixing rods 2122 have a length direction identical to the arrangement direction of the triangular annular frames 21211; the side walls of the fixing rods 2122 are welded to the inner walls of the corners of the plurality of triangular annular frames 21211 projecting from the plate surface of the support plate 211.

Referring to fig. 2 and 4, the two reinforcing rods 2123 have length directions parallel to the length direction of the fixing rods 2122, the two reinforcing rods 2123 are completely embedded in the supporting plate 211, and the sidewalls of the two reinforcing rods 2123 are welded to the inner walls of two corners of the triangular annular frame 21211 embedded in the supporting plate 211. The same reinforcing bar 2123 is welded to the corner inner walls of the triangular annular frames 21211 at the same time.

The implementation principle of prefabricated fire-resistant concrete composite floor slab of the embodiment of the application is as follows: when the composite floor slab is constructed, a plurality of prefabricated floor slabs 2 are tiled on the top surface of a building, the fixing rods 2122 protrude out of the top surfaces of the prefabricated floor slabs 2, and lifting ropes of a lifting machine are fixed on the fixing rods 2122 to lift the prefabricated floor slabs 2 and then convey the prefabricated floor slabs 2 to the top surface of the building, so that the prefabricated floor slabs 2 are convenient to convey; and then pouring the recycled concrete on the top surface of the prefabricated floor slab 2, and forming a concrete layer 1 after the recycled concrete is cured.

When water on the top surface of the concrete layer 1 leaks to the gap of the prefabricated floor slab 2, the water-swelling water stop strip 41 can absorb water, so that the water leakage amount is reduced; meanwhile, the water swelling water stop strip 41 absorbs water and swells to block the gap between the adjacent prefabricated floor slabs 2, so that water is not easy to continue to leak, and the problem of leakage between floors of a building is effectively solved.

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. The utility model provides a prefabricated fire-resistant concrete coincide floor, includes concrete layer (1) and a plurality of precast floor slab (2), and is a plurality of precast floor slab (2) tip concatenation, its characterized in that: the prefabricated floor slab (2) comprises a main board (21) and a splicing part (22) arranged on one side of the main board (21); the splicing part (22) comprises at least two splicing strips (221), and the length direction of each splicing strip (221) is arranged along the extending direction of the edge of the main board (21); the adjacent splicing strips (221) are arranged at intervals, a water blocking groove (4) is formed in the side wall, facing to the other splicing strip (221), of at least one splicing strip (221), splicing grooves (3) used for containing the splicing strips (221) are formed in one side, away from the splicing strips (221), of the main board (21), and the number of the splicing grooves (3) corresponds to the number of the splicing strips (221);

the section of the splicing strip (221) is semicircular, and the straight edge of the semicircle is fixed with the main plate (21).

2. A prefabricated fire-resistant concrete composite floor slab as claimed in claim 1, wherein: the water blocking groove (4) is arranged at the joint of the straight edge and the arc edge of the semicircle.

3. A prefabricated fire-resistant concrete composite floor slab as claimed in claim 1, wherein: and a water-swelling water stop strip (41) is arranged in the water blocking groove (4).

4. A prefabricated fire-resistant concrete composite floor slab as claimed in claim 1, wherein: the main plate (21) comprises a support plate (211) and at least one support steel structure (212) embedded in the support plate (211).

5. The prefabricated fire-resistant concrete composite floor slab as claimed in claim 4, wherein: the supporting steel structure (212) comprises a plurality of fixing frames (2121) and fixing rods (2122) connected with the fixing frames (2121), the fixing rods (2122) penetrate through the fixing frames (2121) and are fixed with the inner walls of the fixing frames (2121), the length direction of the fixing rods (2122) is perpendicular to the plane where the fixing frames (2121) are located, the frame edges of the fixing rods (2122) are far away from the fixing frames (2121) and are embedded in the supporting plate (211), the fixing rods (2122) protrude out of the plate surface of the supporting plate (211), and the length direction of the fixing rods (2122) is parallel to the plate surface of the supporting plate (211).

6. A prefabricated fire-resistant concrete composite floor slab as claimed in claim 5, wherein: the fixing frame (2121) is a triangular annular frame (21211), the frame edges of the triangular annular frames (21211) are parallel to each other, and the fixing rod (2122) is fixed on the inner wall of the corner of the triangular annular frame (21211).

7. The prefabricated fire-resistant concrete composite floor slab as claimed in claim 6, wherein: the supporting steel structure (212) further comprises at least two reinforcing rods (2123), the reinforcing rods (2123) are parallel to the fixing rods (2122), and the fixing frames (2121) are correspondingly fixed to the side walls of the two reinforcing rods (2123) at two corners far away from the fixing rods (2122).