U-shaped groove cover plate assembly prefabricated hollow column structure

Abstract

The utility model belongs to the technical field of assembly type building engineering, and particularly relates to a U-shaped groove cover plate assembly prefabricated hollow column structure. Comprising a column steel bar system, a steel bar protection layer cushion block and a non-dismantling formwork assembly, the non-dismantling formwork assembly is arranged on the outer side of the column steel bar system, and the steel bar protection layer cushion block is arranged between the non-dismantling formwork assembly and the column steel bar system; the non-dismantling formwork assembly comprises a U-shaped groove non-dismantling formwork and a cover plate, the U-shaped groove non-dismantling formwork is of a U-shaped structure with an opening in one side, the cover plate is connected to the opening of the U-shaped groove non-dismantling formwork, and a butt joint notch is reserved between the cover plate and the U-shaped groove non-dismantling formwork. The utility model has the advantages of high forming precision, few splicing seams and high rigidity, improves the production efficiency and reduces the production cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of assembled building engineering, and particularly relates to a U-shaped groove cover plate group for prefabricated hollow column structure. Background Art

[0002] Prefabricated buildings are buildings that are formed by prefabricating the basic components of a building, such as beams, slabs, columns, and walls, in factories and then assembling them on site. Frame structures are a type of building, in which the vertical structure is frame columns and the horizontal structure is frame beams and floor slabs. Traditional prefabricated columns are solid concrete structures, which are gradually replaced by prefabricated hollow columns due to their heavy weight and difficulty in connecting upper and lower steel bars.

[0003] The existing prefabricated hollow column structures include four-sided overlapped hollow columns, two-sided overlapped and two-sided formwork-free hollow columns, and four-sided formwork-free hollow columns. The four-sided overlapped hollow columns are thin concrete slabs poured around the steel cage of the column, the middle of the column is hollowed out, and the column steel bars are located in the surrounding concrete. This structural form adopts the centrifugal forming process, which requires large equipment investment, and it is difficult to form a rough concrete surface in the inner cavity, which affects the overlapping effect of the secondary pouring, and the weight is relatively large. The two-sided overlapped and two-sided formwork-free hollow columns are concrete slabs on both sides of the steel cage of the column, and the other two sides are formwork-free. This structural form adopts four-time flipping and forming process, and has low production efficiency; the material requirements of the formwork-free are extremely high, the cost is high, and large components cannot be made. The four-sided non-removal formwork hollow column is a steel cage wrapped with non-removal formwork on all four sides. The cost of the four-sided non-removal formwork is extremely high; the prefabricated column has low rigidity and is easily deformed during transportation and hoisting; this structural form adopts a flip casting molding process, that is, the steel cage is flipped three times and cast with the non-removal formwork castable three times, and the molding accuracy is poor; it is difficult to pre-embed wire pipes and boxes; the production efficiency is low, and the secondary casting is very easy to cause mold expansion. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a U-shaped groove cover plate assembly for a prefabricated hollow column structure to solve the problems of poor molding accuracy, low production efficiency and high production cost of the existing prefabricated hollow column structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a U-shaped groove cover plate assembly for a prefabricated hollow column structure, comprising a column reinforcement system, a reinforcement protection layer pad and a non-disassembly formwork component, wherein the non-disassembly formwork component is arranged on the outside of the column reinforcement system, and the reinforcement protection layer pad is arranged between the non-disassembly formwork component and the column reinforcement system;

[0007] The disassembly-free formwork assembly includes a U-groove disassembly-free formwork and a cover plate. The U-groove disassembly-free formwork is a U-shaped structure with an open side. The cover plate is connected to the opening of the U-groove disassembly-free formwork, and a docking groove is left between the cover plate and the U-groove disassembly-free formwork.

[0008] The U-shaped groove free-disassembly template includes a bottom plate and side plates vertically arranged on both sides of the bottom plate, and the upper ends of the two side plates are provided with top embedded parts, and the top embedded parts are used to connect the cover plate.

[0009] The top embedded part is an L-shaped angle steel and is covered at a right angle on the inner surface of the side plate.

[0010] The bottom plate and the side plates on both sides are cast and formed by one-time casting of high-strength material.

[0011] Inner corner embedded parts are provided at the inner corners on both sides of the U-shaped groove non-removal formwork, and the inner corner embedded parts are used to connect the column reinforcement system.

[0012] The inner corner embedded part is an L-shaped structure, and two right-angle sides are respectively embedded in the inner surfaces of the bottom plate and the side plate.

[0013] The cover plate includes a cover plate body and embedded full-length angle steels symmetrically arranged at two ends of the inner side of the cover plate body, and the embedded full-length angle steels are used to be connected to the U-shaped groove non-disassembly template.

[0014] The embedded full-length angle steel is an L-shaped structure, wherein one right-angle side is embedded in the inner surface of the cover plate body, and the other right-angle side is exposed outside the inner surface of the embedded full-length angle steel.

[0015] The steel bar protective layer pad is made of plastic material.

[0016] The column reinforcement system is a square reinforcement cage structure.

[0017] The advantages and beneficial effects of the utility model are as follows: the U-shaped groove cover plate assembly provided by the utility model is matched with the prefabricated hollow column structure, has high molding accuracy, few joint seams, strong rigidity, improves production efficiency, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of a U-shaped groove cover plate assembly for a prefabricated hollow column structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the central column reinforcement system of the utility model;

[0020] Figure 3 This is a structural schematic diagram of the U-shaped groove non-disassembly template in the utility model;

[0021] Figure 4 It is a structural schematic diagram of the cover plate in the utility model.

[0022] In the figure: 1 is the column reinforcement system, 1-1 is the main reinforcement of the hollow column, 1-2 is the stirrup of the hollow column, 2 is the reinforcement protective layer pad, 3 is the U-shaped groove free-to-remove formwork, 3-1 is the bottom plate, 3-2 is the side plate, 3-3 is the top embedded part, 3-4 is the inner corner embedded part, 4 is the cover plate, 4-1 is the cover plate body, 4-2 is the embedded full-length angle steel, and 5 is the docking notch. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1 As shown, the utility model provides a U-groove cover plate assembly for a prefabricated hollow column structure, including a column reinforcement system 1, a reinforcement protection layer pad 2 and a disassembly-free formwork component, wherein the disassembly-free formwork component is arranged on the outside of the column reinforcement system 1, and the reinforcement protection layer pad 2 is arranged between the disassembly-free formwork component and the column reinforcement system 1; the disassembly-free formwork component includes a U-groove disassembly-free formwork 3 and a cover plate 4, the U-groove disassembly-free formwork 3 is a U-shaped structure with an opening on one side, the cover plate 4 is connected to the opening of the U-groove disassembly-free formwork 3, and a docking groove 5 is left between the cover plate 4 and the U-groove disassembly-free formwork 3, and the docking groove 5 is used for the docking operation port of the U-groove disassembly-free formwork 3 and the cover plate 4.

[0025] like Figure 2 As shown, in the embodiment of the utility model, the column reinforcement system 1 is a square reinforcement cage structure. Specifically, the column reinforcement system 1 is composed of a hollow column main reinforcement 1-1 and a hollow column stirrup 1-2. A plurality of hollow column main reinforcements 1-1 are arranged along the column height direction, and the hollow column stirrups 1-2 are arranged perpendicular to the hollow column main reinforcement 1-1 and form a closed state of hoop tightening. A plurality of hollow column stirrups 1-2 are arranged at intervals along the height direction of the hollow column main reinforcement 1-1.

[0026] In the embodiment of the utility model, the steel bar protection layer pad 2 is made of plastic material. The function of the steel bar protection layer pad 2 is to ensure that the outer periphery of the column steel bar system 1 is wrapped with a certain amount of concrete to prevent the column steel bar system 1 from rusting.

[0027] like Figure 3 As shown, in the embodiment of the utility model, the U-groove disassembly-free template 3 includes a base plate 3-1 and side plates 3-2 vertically arranged on both sides of the base plate 3-1, and the upper ends of the two side plates 3-2 are provided with top embedded parts 3-3, and the top embedded parts 3-3 are used to connect the cover plate 4 to facilitate assembly and molding.

[0028] In this embodiment, the top embedded part 3-3 is an L-shaped angle steel, and is covered at a right angle to the top of the inner surface of the side plate 3-2. The bottom plate 3-1 and the side plates 3-2 on both sides are made of high-strength materials compatible with concrete and are cast in one step, such as UHPC (ultra-high performance concrete), high-strength cement fiberboard, etc.

[0029] Furthermore, if Figure 1 As shown, inner corner embedded parts 3 - 4 are provided at the inner corners on both sides of the U-shaped groove non-removal formwork 3 , and the inner corner embedded parts 3 - 4 are used to connect the column reinforcement system 1 .

[0030] Specifically, the inner corner embedded part 3 - 4 is an L-shaped structure, and two right-angled sides are respectively embedded in the inner surfaces of the bottom plate 3 - 1 and the side plate 3 - 2.

[0031] As shown in the figure, in the embodiment of the utility model, the cover plate 4 includes a cover plate body 4-1 and embedded full-length angle steels 4-2 symmetrically arranged at both ends of the inner side of the cover plate body 4-1, and the embedded full-length angle steels 4-2 are used to connect with the U-shaped groove non-removable template 3.

[0032] Specifically, the embedded full-length angle steel 4-2 is an L-shaped structure, wherein one right angle side is embedded in the inner surface of the cover plate body 4-1, and the other right angle side is exposed outside the inner surface of the embedded full-length angle steel 4-2. The cover plate body 4-1 is made of high-strength material compatible with concrete and is cast in one step, and the embedded full-length angle steel 4-2 is embedded in the inner corner and anchored firmly.

[0033] In this embodiment, the top embedded part 3-3 is made of metal, such as steel, arranged throughout the length, embedded in the top inner corner of the side plate 3-2 and firmly connected thereto. The inner corner embedded part 3-4 is made of metal, such as steel, arranged throughout the length, embedded in the two inner corners at the bottom of the U-shaped groove free-disassembly template 3, and firmly connected thereto.

[0034] The utility model provides a U-shaped groove cover plate assembly for prefabricated hollow column structure, and the preparation process is as follows:

[0035] Design phase: including the design of column reinforcement system 1 and non-removal formwork components;

[0036] Prepare column reinforcement system 1: hollow column main reinforcement 1-1 and hollow column stirrup 1-2 are cut and produced according to design requirements;

[0037] The main reinforcement 1-1 of the hollow column and the stirrups 1-2 of the hollow column are tied (welded) to form;

[0038] Embedded parts preparation: standard molded parts, traditional technology;

[0039] Preparation of U-shaped groove non-disassembly template 3: Use mold, one-time casting and forming, traditional process; specifically:

[0040] The outer mold is fixed, the bottom plate 3-1 is fixed in place, the inner corner embedded parts 3-4 are fixed in place, and the inner mold (core mold) is fixed in sequence;

[0041] Cast high-strength materials compatible with concrete and cure them into shape;

[0042] Demoulding, the U-shaped groove free-to-remove template 3 is prepared;

[0043] Preparation of cover plate 4:

[0044] Flat mold production process: support side mold, pre-embed full-length angle steel 4-2 in place;

[0045] Cast high-strength materials compatible with concrete and cure to shape;

[0046] Remove the mold for later use;

[0047] Hollow column assembly molding:

[0048] The U-shaped groove free-to-remove template 3 is in place;

[0049] Install the column reinforcement system 1 and the reinforcement cover pad 2;

[0050] Install the cover plate 4;

[0051] The top embedded part 3-3 and the embedded full-length angle steel 4-2 are welded (or connected in other ways) at the reserved docking notch 5;

[0052] Secondary fixation of steel cage and non-removal formwork;

[0053] Prefabrication completed.

[0054] For oversized columns, the U-shaped groove free-disassembly formwork 3 and the cover plate 4 should be provided with reserved holes at the corresponding positions to facilitate the passage of the steel bar tie rods to form up-down and left-right tension to prevent the mold from expanding during concrete pouring. The column reinforcement system 1 can be welded to the inner corner embedded parts 3-4 through welding connectors.

[0055] The utility model provides a U-shaped groove cover plate assembly for prefabricated hollow column structure, with few joints, strong rigidity and high forming precision. Its preparation process is simple and does not require special equipment; the column reinforcement system 1 is produced in parallel with the non-disassembly template, assembled and formed, and the production efficiency is greatly improved; the reinforcement processing precision and the non-disassembly template forming precision are both controllable, which improves the product quality.

[0056] The above description is only an implementation method of the utility model and is not intended to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, expansion, etc. made within the spirit and principle of the utility model are included in the protection scope of the utility model.

Claims

1. A U-shaped groove cover plate assembly for a prefabricated hollow column structure, characterized in that: It comprises a column reinforcement system (1), a reinforcement protection layer pad (2) and a non-disassembly formwork component, wherein the non-disassembly formwork component is arranged outside the column reinforcement system (1), and the reinforcement protection layer pad (2) is arranged between the non-disassembly formwork component and the column reinforcement system (1); The non-disassembly template assembly comprises a U-shaped groove non-disassembly template (3) and a cover plate (4); the U-shaped groove non-disassembly template (3) is a U-shaped structure with one side open; the cover plate (4) is connected to the opening of the U-shaped groove non-disassembly template (3); and a docking notch (5) is left between the cover plate (4) and the U-shaped groove non-disassembly template (3).

2. The U-shaped groove cover plate assembly for prefabricated hollow column structure according to claim 1 is characterized in that: The U-shaped groove disassembly-free template (3) comprises a bottom plate (3-1) and side plates (3-2) vertically arranged on both sides of the bottom plate (3-1), and the upper ends of the two side plates (3-2) are each provided with a top embedded part (3-3), and the top embedded part (3-3) is used to connect the cover plate (4).

3. The U-shaped groove cover plate assembly for prefabricated hollow column structure according to claim 2 is characterized in that: The top embedded part (3-3) is an L-shaped angle steel and is covered at a right angle on the inner surface of the side plate (3-2).

4. The U-shaped groove cover plate assembly for prefabricated hollow column structure according to claim 2 is characterized in that: The bottom plate (3-1) and the side plates (3-2) on both sides are cast and formed by one-time casting of high-strength material.

5. The U-shaped groove cover plate assembly for prefabricated hollow column structure according to claim 2 is characterized in that: Inner corner embedded parts (3-4) are provided at the inner corners on both sides of the U-shaped groove disassembly-free formwork (3), and the inner corner embedded parts (3-4) are used to connect the column reinforcement system (1).

6. The U-shaped groove cover plate assembly for prefabricated hollow column structure according to claim 5 is characterized in that: The inner corner embedded part (3-4) is an L-shaped structure, and two right-angled sides are respectively embedded in the inner surfaces of the bottom plate (3-1) and the side plate (3-2).

7. The U-shaped groove cover plate assembly for prefabricated hollow column structure according to claim 1 is characterized in that: The cover plate (4) comprises a cover plate body (4-1) and embedded full-length angle steels (4-2) symmetrically arranged at two ends of the inner side of the cover plate body (4-1), and the embedded full-length angle steels (4-2) are used to be connected to the U-shaped groove disassembly-free template (3).

8. The U-shaped groove cover plate assembly for prefabricated hollow column structure according to claim 7 is characterized in that: The embedded full-length angle steel (4-2) is an L-shaped structure, wherein one right-angled side is embedded in the inner surface of the cover plate body (4-1), and the other right-angled side is exposed outside the inner surface of the embedded full-length angle steel (4-2).

9. The U-shaped groove cover plate assembly for prefabricated hollow column structure according to claim 1 is characterized in that: The steel bar protective layer pad (2) is made of plastic material.

10. The U-shaped groove cover plate assembly for prefabricated hollow column structure according to claim 1, characterized in that: The column reinforcement system (1) is a square reinforcement cage structure.

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