Hollow floor non-dismantling formwork with convex ribs

Abstract

The utility model discloses a hollow floor non-dismantling formwork with convex ribs, which comprises a bottom plate, transverse convex ribs are integrally poured on the upper end face of the bottom plate, first holes are reserved in the transverse convex ribs, first stirrups are respectively arranged in the first holes, the lower ends of the first stirrups penetrate through the interiors of the first holes, and the lower ends of the first stirrups penetrate through the interiors of the second holes. And the upper end part of the first stirrup is positioned above the transverse convex rib. The transverse protruding rib is integrally poured on the upper end face of the bottom plate, the first hole used for containing the first stirrup is reserved in the transverse protruding rib, the lower end of the first stirrup penetrates through the interior of the first hole, the upper end of the first stirrup is located above the transverse protruding rib, and the first stirrup is movably connected with the first hole. When the hollow floor non-dismantling formwork is transported, the first stirrups can be inclined, and the first stirrups are vertical during subsequent pouring, so that the interval of the hollow floor non-dismantling formwork during stacking is reduced, and the purpose of reducing the occupied transportation volume is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction engineering, and particularly relates to a non-removable formwork for a hollow floor slab with convex ribs. Background Art

[0002] With the rapid development of the construction industry in China, the ribbed floor slab is a new type of structural system that has emerged and been gradually widely used in recent years to meet the needs of large-span and large-bay buildings, based on learning from advanced foreign design and construction experiences. Compared with the ordinary reinforced concrete structural system, it can effectively save a large amount of concrete and steel under the same conditions, improve the space utilization rate, greatly reduce the self-weight of the floor slab, and improve the bearing capacity.

[0003] An existing non-removable formwork for a hollow floor slab, such as a two-way ribbed steel truss concrete composite non-removable formwork disclosed in Publication No. CN220747386U, includes steel trusses arranged in a grid pattern of vertical and horizontal intersections and a bottom plate. The steel trusses arranged in a grid pattern of vertical and horizontal intersections are disposed above the bottom plate. The steel trusses include a first upper chord bar, a second upper chord bar, rectangular stirrups, and V-shaped corrugated bars. The first upper chord bar and the second upper chord bar are arranged in parallel side by side. Rectangular stirrups are further provided on the outer sides of the first upper chord bar and the second upper chord bar. The first upper chord bar and the second upper chord bar are both connected to the V-shaped corrugated bars, and a lower part of the V-shaped corrugated bars is buried in the bottom plate. In its technical solution, the bottom plate is connected to the first upper chord bar and the second upper chord bar through the rectangular stirrups and the V-shaped corrugated bars. This connection method makes the first upper chord bar and the second upper chord bar located at a certain height above the bottom plate and relatively fixedly connected. In practice, it is found that when transporting, it is generally hoisted onto the transport vehicle in a stacked manner, and this fixed connection method has a serious problem of occupying a large transport volume due to the certain height between the first upper chord bar and the second upper chord bar above the bottom plate during transportation, indirectly increasing the use cost. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a non-removable formwork for a hollow floor slab with convex ribs to solve the technical problems raised in the background art.

[0005] The utility model provides the following technical solutions:

[0006] A non-removable formwork for a hollow floor slab with convex ribs, comprising a bottom plate. A transverse convex rib is integrally cast on the upper end surface of the bottom plate. A first hole is reserved in the transverse convex rib, and the front and rear ports of the first hole penetrate through the front and rear side surfaces of the transverse convex rib. A plurality of the first holes are provided, and the plurality of the first holes are arranged in sequence along the length direction of the transverse convex rib. A first stirrup is respectively arranged in each of the first holes. The lower end part of the first stirrup passes through the inside of the first hole, and the upper end part of the first stirrup is located above the transverse convex rib; A plurality of hollow floor slab core molds are further arranged on the upper end surface of the bottom plate; A first reinforcing bar is further arranged along the length direction inside the transverse convex rib, and the first reinforcing bar is located above the first hole. A plurality of the first reinforcing bars are provided, and the plurality of the first reinforcing bars are arranged in sequence along the longitudinal direction of the transverse convex rib; A first small stirrup is further arranged inside the transverse convex rib. The upper end of the first small stirrup is connected to the plurality of the first reinforcing bars, and the lower end of the first small stirrup is located inside the bottom plate. A plurality of the first small stirrups are provided, and the plurality of the first small stirrups are arranged in sequence along the length direction of the transverse convex rib; A plurality of the transverse convex ribs are provided, and the plurality of the transverse convex ribs are arranged in sequence along the longitudinal direction of the bottom plate.

[0007] Preferably, the longitudinal section of the first hole is rectangular or semi-circular.

[0008] Preferably, the first hole is one or any combination of a concrete sleeve and a steel pipe sleeve.

[0009] Preferably, a reinforcing member is arranged inside the bottom plate, and the reinforcing member is one or any combination of a wire mesh, steel fibers, and carbon fibers. The lower end of the first small stirrup is connected to the reinforcing member.

[0010] Preferably, a longitudinal convex rib is integrally cast on the upper end surface of the bottom plate, and the structure of the longitudinal convex rib is the same as that of the transverse convex rib.

[0011] Preferably, a second hole is reserved in the longitudinal rib, and the left and right ports of the second hole penetrate through the left and right side surfaces of the longitudinal rib. A plurality of the second holes are provided, and the plurality of second holes are arranged in sequence along the length direction of the longitudinal rib. A second stirrup is respectively arranged in each second hole. The lower end of the second stirrup passes through the inside of the second hole, and the upper end of the second stirrup is located above the longitudinal rib. A second reinforcing bar is further arranged inside the longitudinal rib along its length direction. The second reinforcing bar is located above the second hole. A plurality of the second reinforcing bars are provided, and the plurality of second reinforcing bars are arranged in sequence along the transverse direction of the longitudinal rib. A second small stirrup is further arranged inside the longitudinal rib. The upper end of the second small stirrup is connected to the plurality of second reinforcing bars, and the lower end of the second small stirrup is located inside the bottom plate. A plurality of the second small stirrups are provided, and the plurality of second small stirrups are arranged in sequence along the length direction of the longitudinal rib.

[0012] Preferably, a plurality of the longitudinal ribs are also provided, and the plurality of longitudinal ribs are arranged in sequence along the transverse direction of the bottom plate. The plurality of transverse ribs and longitudinal ribs are criss-crossed to form a grid shape.

[0013] Preferably, an alkali-resistant fiberglass mesh cloth is further arranged on the lower end surface of the bottom plate.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model relates to a non-removable formwork for a hollow floor slab with ribs. By integrally pouring transverse ribs on the upper end surface of the bottom plate, a first hole for placing a first stirrup is reserved in the transverse rib. The lower end of the first stirrup passes through the inside of the first hole, and the upper end of the first stirrup is located above the transverse rib. The first stirrup is movably connected to the first hole. When transporting the non-removable formwork for the hollow floor slab, the first stirrup can be inclined, and it is only necessary to make the first stirrup vertical during subsequent pouring, reducing the interval when the non-removable formwork for the hollow floor slab is stacked, and achieving the purpose of reducing the occupied transportation volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present utility model.

[0018] Figure 2 For the present utility model Figure 1 is a schematic cross-sectional view taken along line A-A.

[0019] Figure 3 For the present utility model Figure 2 is a partially enlarged schematic view at position B.

[0020] Figure 4 is a schematic structural view of Embodiment 2 of the present utility model.

[0021] Figure 5 For the present utility model Figure 4 is a schematic cross-sectional view taken along line C-C.

[0022] Figure 6 For the present utility model Figure 5 is a partially enlarged schematic view at position D. Detailed implementation manners

[0023] To make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0024] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0025] Embodiment 1

[0026] Please refer to Figures 1-3As shown in the figure, a non-removable formwork for a hollow floor slab with convex ribs includes a bottom plate 1. A transverse convex rib 2 is integrally cast on the upper end surface of the bottom plate 1. A first hole 3 is reserved in the transverse convex rib 2. The longitudinal section of the first hole 3 is rectangular or semi-circular. The front and rear ports of the first hole 3 penetrate through the front and rear side surfaces of the transverse convex rib 2. A number of first holes 3 are provided, and the number of first holes 3 are arranged in sequence along the length direction of the transverse convex rib 2. And a first stirrup 4 is respectively arranged in each first hole 3. The lower end of the first stirrup 4 passes through the inside of the first hole 3, and the upper end of the first stirrup 4 is located above the transverse convex rib 2; A number of hollow floor slab core molds 8 are also arranged on the upper end surface of the bottom plate 1; A first reinforcing bar 5 is also arranged inside the transverse convex rib 2 along its length direction. The first reinforcing bar 5 is located above the first hole 3. A number of first reinforcing bars 5 are provided, and the number of first reinforcing bars 5 are arranged in sequence along the longitudinal direction of the transverse convex rib 2; A first small stirrup 7 is also arranged inside the transverse convex rib 2. The upper end of the first small stirrup 7 is connected to a number of first reinforcing bars 5, and the lower end of the first small stirrup 7 is located inside the bottom plate 1. A number of first small stirrups 7 are provided, and the number of first small stirrups 7 are arranged in sequence along the length direction of the transverse convex rib 2; A number of transverse convex ribs 2 are provided, and the number of transverse convex ribs 2 are arranged in sequence along the longitudinal direction of the bottom plate 1. The hollow floor slab core mold 8 is installed and connected during construction. By integrally casting a transverse convex rib on the upper end surface of the bottom plate, a first hole for placing a first stirrup is reserved in the transverse convex rib. The lower end of the first stirrup passes through the inside of the first hole, and the upper end of the first stirrup is located above the transverse convex rib. The first stirrup is movably connected to the first hole. When transporting the non-removable formwork for the hollow floor slab, the first stirrup can be tilted, and it is only necessary to make the first stirrup vertical during subsequent pouring, reducing the interval when the non-removable formwork for the hollow floor slab is stacked, achieving the purpose of reducing the occupied transportation volume.

[0027] The first hole 3 is one or any combination of a concrete sleeve and a steel pipe sleeve.

[0028] A reinforcing member 6 is arranged inside the bottom plate 1. The reinforcing member 6 is one or any combination of a wire mesh, steel fiber, and carbon fiber. The lower end of the first small stirrup 7 is connected to the reinforcing member 6.

[0029] An alkali-resistant fiberglass mesh cloth 13 is also arranged on the lower end surface of the bottom plate 1.

[0030] Embodiment 2

[0031] Please refer to Figures 4-6 As shown in the figure, on the basis of Embodiment 1, a longitudinal convex rib 9 is also integrally cast on the upper end surface of the bottom plate 1. The structure of the longitudinal convex rib 9 is the same as that of the transverse convex rib 2.

[0032] A second hole is reserved inside the longitudinal rib 9. The left and right ends of the second hole penetrate through the left and right side surfaces of the longitudinal rib 9. A plurality of second holes are provided, and the plurality of second holes are arranged in sequence along the length direction of the longitudinal rib 9. And a second stirrup 10 is respectively arranged in each second hole. The lower end of the second stirrup 10 passes through the inside of the second hole, and the upper end of the second stirrup 10 is located above the longitudinal rib 9. A second reinforcing rib 11 is further arranged inside the longitudinal rib 9 along its length direction. The second reinforcing rib 11 is located above the second hole. A plurality of second reinforcing ribs 11 are provided, and the plurality of second reinforcing ribs 11 are arranged in sequence along the transverse direction of the longitudinal rib 9. A second small stirrup 12 is further arranged inside the longitudinal rib 9. The upper end of the second small stirrup 12 is connected to the plurality of second reinforcing ribs 11, and the lower end of the second small stirrup 12 is located inside the bottom plate 1. A plurality of second small stirrups 12 are provided, and the plurality of second small stirrups 12 are arranged in sequence along the length direction of the longitudinal rib 9.

[0033] A plurality of longitudinal ribs 9 are also provided, and the plurality of longitudinal ribs 9 are arranged in sequence along the transverse direction of the bottom plate 1. The plurality of transverse ribs 2 and longitudinal ribs 9 are crisscrossed to form a grid. The hollow floor formwork 8 is arranged in each grid surrounded by the transverse ribs 2 and longitudinal ribs 9. By adding a plurality of longitudinal ribs 9, the strength of the bottom plate 1 is further improved.

[0034] The above is only the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A non-removable formwork for a hollow floor slab with convex ribs, characterized in that: It includes a bottom plate (1). A transverse rib (2) is integrally cast on the upper end surface of the bottom plate (1). A first hole (3) is reserved in the transverse rib (2). The front and rear ports of the first hole (3) penetrate through the front and rear side surfaces of the transverse rib (2). A plurality of the first holes (3) are provided. The plurality of the first holes (3) are arranged in sequence along the length direction of the transverse rib (2). And a first stirrup (4) is respectively arranged in each of the first holes (3). The lower end of the first stirrup (4) passes through the inside of the first hole (3), and the upper end of the first stirrup (4) is located above the transverse rib (2); A plurality of hollow floor formwork cores (8) are also arranged on the upper end surface of the bottom plate (1); A first reinforcing bar (5) is also arranged inside the transverse rib (2) along its length direction. The first reinforcing bar (5) is located above the first hole (3). A plurality of the first reinforcing bars (5) are provided. The plurality of the first reinforcing bars (5) are arranged in sequence along the longitudinal direction of the transverse rib (2); A first small stirrup (7) is also arranged inside the transverse rib (2). The upper end of the first small stirrup (7) is connected to the plurality of the first reinforcing bars (5). The lower end of the first small stirrup (7) is located inside the bottom plate (1). A plurality of the first small stirrups (7) are provided. The plurality of the first small stirrups (7) are arranged in sequence along the length direction of the transverse rib (2); A plurality of the transverse ribs (2) are provided. The plurality of the transverse ribs (2) are arranged in sequence along the longitudinal direction of the bottom plate (1).

2. The non-removable formwork for hollow floor slabs with convex ribs according to claim 1, characterized in that, The longitudinal section of the first hole (3) is rectangular or semi-circular in shape.

3. The non-removable formwork for hollow floor slabs with convex ribs according to claim 1, characterized in that, A reinforcing member (6) is arranged inside the bottom plate (1). The reinforcing member (6) is one or any combination of a wire mesh, steel fibers, and carbon fibers. The lower end of the first small stirrup (7) is connected to the reinforcing member (6).

4. The non-removable formwork for a hollow floor slab with convex ribs according to claim 1, characterized in that, A longitudinal rib (9) is also integrally cast on the upper end surface of the bottom plate (1). The structure of the longitudinal rib (9) is the same as that of the transverse rib (2).

5. The non-removable formwork for hollow floor with convex ribs according to claim 4, characterized in that A plurality of the longitudinal ribs (9) are also provided. The plurality of the longitudinal ribs (9) are arranged in sequence along the transverse direction of the bottom plate (1). The plurality of the transverse ribs (2) and longitudinal ribs (9) are criss-crossed to form a grid shape.

6. The non-removable formwork for a hollow floor slab with convex ribs according to claim 1, characterized in that An alkali-resistant fiberglass mesh cloth (13) is also arranged on the lower end surface of the bottom plate (1).

Images