Hollow floor top plate thickness control tooling and method

Abstract

The present invention relates to the field of building construction technology, and specifically to a tool and method for controlling the thickness of a hollow floor top plate, comprising a vertical strut, wherein the upper and lower parts of the vertical strut are each connected to a hook control rod; the hook control rod comprises a vertical connection portion connected to the vertical strut, the vertical connection portion is hook-shaped at one end away from the vertical strut, and the end of the hook is connected to a horizontal limiting portion; the horizontal limiting portions of the two hook control rods located at the upper and lower parts of the vertical strut are respectively located on both sides of the vertical strut; the present invention connects the hook control rods at the upper and lower sides of the vertical strut, and the horizontal limiting portions of the two hook control rods respectively abut against the lower structural steel bars and the upper structural steel bars, so as to achieve the limitation of the spacing between the lower structural steel bars and the upper structural steel bars, thereby ensuring the consistency of the top plate thickness and improving the construction quality; it is simple and easy to operate, improves construction efficiency and shortens the construction period.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a tool and method for controlling the thickness of a hollow floor top plate. Background Art

[0002] A hollow floor slab is a cast-in-place reinforced concrete hollow floor slab; it is also called a cast-in-place beamless hollow floor slab, which is a hollow floor slab without visible beams that is cast in-place after the core formwork product is installed; a hollow floor slab comprises steel bars, concrete, and core formwork, with the core formwork being buried in the reinforced concrete; during construction, in order to prevent the core formwork from floating up and affecting the spacing between the lower structure steel bars and the upper structure steel bars, thereby affecting the thickness of the top plate, it is usually practiced to place pads and steel bars a second time at the floating part of the core formwork, and to use wire tying for secondary reinforcement to control the spacing between the lower structure steel bars and the upper structure steel bars, which is time-consuming, labor-intensive, and labor-intensive. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a hollow floor top plate thickness control tooling and method that is easy to operate, saves manpower, and can prevent the core mold from floating up and causing uneven top plate thickness.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A tool for controlling the thickness of a hollow floor top plate includes a vertical strut, wherein the upper and lower parts of the vertical strut are each connected to a hook control rod; the hook control rod includes a vertical connecting portion connected to the vertical strut, the end of the vertical connecting portion away from the vertical strut is hook-shaped, and the end of the hook is connected to a horizontal limiting portion; the horizontal limiting portions of the two hook control rods located at the upper and lower parts of the vertical strut are respectively located on both sides of the vertical strut.

[0006] Preferably, a further technical solution of the present invention is:

[0007] Preferably, a long hole is provided on the vertical support rod, and a locking hole is provided on the vertical connecting portion of the hook control rod; it also includes a locking bolt and a locking nut, and the locking bolt passes through the locking hole and the long hole and is locked and fixed by the locking nut.

[0008] Preferably, the hook control rod is formed by bending an iron sheet in one piece.

[0009] The present invention also discloses a method for controlling a hollow floor concrete protective layer, which comprises the following steps:

[0010] S1: Support the top slab casting formwork, tie the lower structure steel bars, and install the core formwork;

[0011] S2: Install the hollow floor top slab thickness control fixture on both sides of the core formwork. The vertical support rods in the hollow floor top slab thickness control fixture are set perpendicular to the lower structural steel bars. The hook-shaped part of the vertical connection part of the hook control rod connected to the lower part passes through the lower side of the lower structural steel bars to connect to the horizontal limiter. The horizontal limiter is set perpendicular to the length direction of the lower structural steel bars and overlaps the lower structural steel bars.

[0012] S3: Tie the upper structure steel bars and adjust the thickness of the hollow floor top slab. The horizontal limiter of the upper hook control rod in the tooling is set perpendicular to the length of the upper structure steel bars and abuts against the lower side of the upper structure steel bars. At the same time, the hook of the vertical connection part passes over the upper structure steel bars from the upper side of the upper structure steel bars.

[0013] S4: Concrete pouring.

[0014] Preferably, step S3 further includes tying and fixing the horizontal limit portion of the hook control rod to the upper structure steel bars or the lower structure steel bars.

[0015] Compared with the prior art, the present invention adopting the above technical solution has the following outstanding features:

[0016] The present invention connects hook control rods on the upper and lower sides of the vertical support rods, and the horizontal limit parts of the two hook control rods respectively abut the lower structural steel bars and the upper structural steel bars to limit the spacing between the lower structural steel bars and the upper structural steel bars, thereby ensuring the consistency of the top plate thickness and improving the construction quality; avoiding the secondary placement of pads and steel bars, and using wire tying for secondary reinforcement, which is simple and easy to operate, improves construction efficiency, shortens construction period, and saves labor. At the same time, the combination of the hollow floor top plate thickness control tooling and structural steel bars can also improve the structural strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 2 is a schematic side view of the structure of the hollow floor top plate thickness control tooling according to an embodiment of the present invention;

[0018] Figure 2 1 is a schematic side view of the structure of the hollow floor top plate thickness control tool in use in an embodiment of the present invention;

[0019] Figure 3 3D schematic diagram of the thickness control tooling for the top plate of a hollow floor according to an embodiment of the present invention;

[0020] Figure 4 It is a structural schematic diagram of the hollow floor top plate thickness control tooling in an embodiment of the present invention when in use.

[0021] Explanation of the accompanying symbols: 1. Vertical support rod; 101. Long strip hole; 2. Hook control rod; 201. Vertical connecting part; 202. Hook; 203. Horizontal limiting part; 3. Locking bolt; 4. Lower structure steel bar; 5. Core mold; 6. Upper structure steel bar. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with specific embodiments. The purpose is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0023] like Figure 1 、 Figure 3 As shown, this embodiment provides a hollow floor top plate thickness control tool, including a vertical support rod 1, and a hook control rod 2 is connected to the upper and lower parts of the vertical support rod 1; the hook control rod 2 includes a vertical connection part 201 connected to the vertical support rod 1, and the end of the vertical connection part 201 away from the vertical support rod 1 is hook-shaped, and the end of the hook 202 is connected to a horizontal limiting part 203; the horizontal limiting parts 203 of the two hook control rods 2 located at the upper and lower parts of the vertical support rod 1 are respectively located on both sides of the vertical support rod 1; wherein, the hook control rod 2 is formed by bending an iron sheet in one piece.

[0024] To adapt to different floor thicknesses, a long hole 101 is provided on the vertical support rod 1, and a locking hole is provided on the vertical connection part 201 of the hook control rod 2; it also includes a locking bolt 3 and a locking nut, the locking bolt 3 passes through the locking hole and the long hole 101 and is locked and fixed by the locking nut; the relative position of the hook control rod 2 and the vertical support rod 1 is adjusted by the long hole 101, the locking bolt 3, and the locking nut, and then the distance between the upper and lower horizontal limit parts 203 of the hook control rods 2 can be adjusted, which is suitable for the support requirements of floors of different thicknesses.

[0025] like Figure 2 、 Figure 4 As shown, the present invention also discloses a method for controlling the protective layer of hollow floor concrete, and the specific steps are as follows:

[0026] S1: Support the top slab casting formwork, tie the lower structure steel bars 4, and install the core formwork 5;

[0027] S2: Hollow floor slab top plate thickness control tooling is symmetrically arranged on the left and right sides of the core mold 5. The vertical support rod 1 in the hollow floor slab top plate thickness control tooling is arranged perpendicular to the lower structure steel bar 4. The vertical connection part 201 of the hook control rod 2 connected to the lower part is hooked from the lower side of the lower structure steel bar 4 to bypass the lower structure steel bar 4 to connect the horizontal limiting part 203. The horizontal limiting part 203 is arranged perpendicular to the length direction of the lower structure steel bar 4 and abuts against the lower structure steel bar 4.

[0028] It should be noted that in order to ensure the balance of the structural steel support, the hollow floor top plate thickness control tooling appears in pairs, and each core mold 5 is provided with at least one set of hollow floor top plate thickness control tooling, a set of two, located on both sides of the core mold 5.

[0029] S3: Tie the upper structure steel bars 6 and adjust the upper hook control rod 2 in the hollow floor top slab thickness control tooling so that its horizontal limit portion 203 is perpendicular to the length direction of the upper structure steel bars 6 and abuts against the lower side of the upper structure steel bars 6; at the same time, the hook-shaped portion of the vertical connection portion 201 passes over the upper structure steel bars 6 from the upper side; at this time, the horizontal limit portion 203 of the upper hook control rod 2 and the horizontal limit portion 203 of the lower hook control rod 2 of the same hollow floor top slab thickness control tooling respectively abut against the upper structure steel bars 6 and the lower structure steel bars 4, thereby limiting the distance between the upper structure steel bars 6 and the lower structure steel bars 4. Then, the horizontal limit portion 203 of the upper hook control rod 2 is tied and fixed to the upper structure steel bars 6, and the horizontal limit portion 203 of the lower hook control rod 2 is tied and fixed to the lower structure steel bars 4.

[0030] S4: Concrete pouring.

[0031] The present invention can limit the spacing between the lower structural steel bars 4 and the upper structural steel bars 6, thereby ensuring the consistency of the top plate thickness and improving the construction quality; it improves the construction efficiency; at the same time, the combination of the hollow floor top plate thickness control tooling and the structural steel bars can further improve the structural strength.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Any equivalent changes made by using the contents of the present invention description and the drawings are included in the scope of the present invention.

Claims

1. A method for controlling the thickness of a hollow floor top plate, characterized in that: The thickness of the hollow floor slab is controlled by a tool for controlling the thickness of the hollow floor slab. The tool comprises a vertical support rod (1), and the upper and lower parts of the vertical support rod (1) are each connected to a hook control rod (2); the hook control rod (2) comprises a vertical connection part (201) connected to the vertical support rod (1), and the end of the vertical connection part (201) away from the vertical support rod (1) is hook-shaped, and the end of the hook (202) is connected to a horizontal limit part (203); the horizontal limit parts (203) of the two hook control rods (2) located at the upper and lower parts of the vertical support rod (1) are respectively located on both sides of the vertical support rod (1); The vertical support rod (1) is provided with an elongated hole (101), and the vertical connecting portion (201) of the hook control rod (2) is provided with a locking hole; further comprising a locking bolt (3) and a locking nut, wherein the locking bolt (3) passes through the locking hole and the elongated hole (101) and is locked and fixed by the locking nut; The hook control rod (2) is formed by bending an iron sheet in one piece; The control method steps are as follows: S1: Support the top plate casting formwork, tie the lower structure steel bars (4), and install the core formwork (5); S2: Installing a hollow floor slab top plate thickness control tooling on both sides of the core mold (5), wherein the vertical support rod (1) in the hollow floor slab top plate thickness control tooling is arranged perpendicular to the lower structural steel bar (4), and the hook-shaped portion of the vertical connection portion (201) of the hook control rod (2) connected to the lower portion passes through the lower structural steel bar (4) from the lower side to connect to the horizontal limit portion (203), and the horizontal limit portion (203) is arranged perpendicular to the longitudinal direction of the lower structural steel bar (4) and overlaps the lower structural steel bar (4); S3: Tie the upper structure steel bars (6) and adjust the thickness of the hollow floor top plate by setting the horizontal limiter (203) of the upper hook control rod (2) in a tooling perpendicular to the longitudinal direction of the upper structure steel bars (6) and abutting against the lower side of the upper structure steel bars (6). At the same time, the hook of the vertical connection part (201) passes over the upper structure steel bars (6) from the upper side of the upper structure steel bars (6); S4: Concrete pouring.

2. The method for controlling the thickness of the hollow floor top plate according to claim 1, wherein: Step S3 also includes tying and fixing the horizontal limit portion (203) of the hook control rod (2) to the upper structure steel bars (6) or the lower structure steel bars (4).

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