Circulating folding steel formwork for constructional column

Through the segmented casting and vibration technology of the circulating folding steel formwork of structural columns, the problems of concrete vibration and surface unevenness caused by wooden formwork are solved, high-quality construction of structural columns is achieved, the installation and disassembly process is simplified, and the installation and disassembly process is reduced. The cost.

CN222227954UInactive Publication Date: 2024-12-24CHINA FIRST HIGHWAY ENGINEERING CO LTD
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Patent Information

Application Number
CN202420952558.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-06
Publication Date
2024-12-24
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing wooden formwork is prone to deformity and uneven surface during the casting of the structural column, which leads to difficulty in vibrating the concrete and affects the quality of the structural column. The high casting height at one time leads to inadequate vibration, resulting in honeycomb and lint surface problems.

Method used

The steel plate is circulating folding steel formwork is used to fix the steel plate through foldable connecting plate components and pulling bolts to realize segmented casting and vibration, ensuring that the formwork is in close contact with the wall, and fixing the steel plate with pulling bolts and steel gaskets to ensure that the steel plate is fixed. Concrete quality and flat surface.

Benefits of technology

Through segmented casting and vibration, honeycomb and hole phenomena are significantly reduced, concrete quality is improved, structural column surfaces are ensured, installation and disassembly are simplified, cost is reduced, and formwork service life is extended.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a constructional column circulation folding steel formwork which is formed by combining a plurality of formwork units, each formwork unit comprises a foldable connecting plate assembly, two steel plates and a plurality of split bolts, the connecting plate assembly comprises an upper connecting plate and a lower connecting plate which are connected together in a rotating mode, and the upper connecting plate and the lower connecting plate are connected in a rotating mode. The upper connecting plate and the lower connecting plate are both provided with a plurality of connecting plate holes, each steel plate is provided with at least one group of two split bolt preformed holes, threaded holes capable of being connected with the connecting plate holes in a matched mode are formed in the positions close to the upper edge and the lower edge, and the two steel plates are fixedly connected to the upper connecting plate and the lower connecting plate through bolts respectively. And the width of the template unit is not less than that of the wide part of the constructional column. By means of the device, segmented pouring of the constructional column is achieved, the pouring quality of the concrete constructional column is guaranteed, and the phenomena of honeycombs, holes and even exposed column ribs on the surface of the constructional column are greatly reduced.
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Description

Technical Field

[0001] The utility model belongs to the technical field of templates for building construction, and particularly relates to a circular folding steel template for a structural column. Background Art

[0002] In order to enhance the integrity and stability of multi-story brick-concrete buildings, a lightweight reinforced concrete structure is connected to the ring beams of each floor to form a space frame that can resist bending and shearing. It is an effective measure to prevent the collapse of the house. The locations of structural columns include the middle of the same wall, the four corners of the exterior wall, the intersection of the horizontal wall and the exterior longitudinal wall at the staggered level, and the intersection of the interior and exterior walls of the large room. The location of the structural column is generally reserved according to the design when the wall is built. Due to the important role played by the structural column in the brick-concrete building, the quality of the structural column casting is very important. The quality of the casting of the structural column is not only related to the quality of the reinforced concrete itself, but also the quality and structure of the structural column template, which is essential for the construction of the structural column.

[0003] Most of the existing structural columns are made of wooden boards as templates. The length of the wooden templates is the same as the height of the wall. Since the wooden templates are long, they are easy to deform and have uneven surfaces. In most cases, the templates are not in close contact with the wall, and a large amount of concrete mortar flows down from the gaps. The surface of the structural columns is rough and uneven, and serious honeycombs and pitting appear. In addition, since the internal space of the structural column is small and the steel bars are dense, during the pouring of concrete, due to the high height of the structural column, the pouring height is too high at one time, which makes it difficult to vibrate the concrete, and the vibration is not in place, affecting the quality of the structural column. Summary of the invention

[0004] In view of the above problems, the utility model proposes a circular folding steel formwork for structural columns, aiming to solve the problems of rough, honeycombed and pockmarked surfaces of the constructed structures, and excessively high pouring height of the structural columns at one time, which makes it difficult to vibrate the concrete, resulting in inadequate vibration and affecting the quality of the structural columns.

[0005] The utility model is implemented as follows: a structural column circular folding steel formwork, including a wall, a structural column, the structural column circular folding steel formwork is composed of a plurality of formwork units, each of the formwork units includes a foldable connecting plate assembly, two steel plates and a plurality of tension bolts, the connecting plate assembly includes an upper connecting plate and a lower connecting plate rotatably connected together, the upper connecting plate and the lower connecting plate are both provided with a plurality of connecting plate holes, the connecting plate holes of the upper connecting plate are arranged in the same manner as the connecting plate holes of the lower connecting plate, threaded holes that can be matched and connected with the connecting plate holes are provided at positions near the upper and lower edges of the steel plates, the threaded holes do not penetrate the steel plates, the two steel plates are fixedly connected to the upper connecting plate and the lower connecting plate respectively by bolts, at least one group of two tension bolt reserved holes are also provided on the steel plates, the width of the formwork unit is greater than the width of the wide part of the structural column, the tension bolts pass through the tension bolt reserved holes and the reserved space of the structural column to fix another formwork unit together, and the formwork units are connected by the connecting plate assembly.

[0006] Furthermore, each of the steel plates is symmetrically provided with a group of two reserved holes for tension bolts.

[0007] Furthermore, two reserved holes for tension bolts are arranged at positions close to the threaded holes, and a distance between the two reserved holes for tension bolts is smaller than a width of the narrow portion of the structural column.

[0008] Furthermore, the reserved holes for the tension bolts are arranged at positions close to the threaded holes, and the distance between the two reserved holes for the tension bolts is greater than the width of the narrow part of the structural column and less than the width of the wide part of the structural column.

[0009] Furthermore, each of the steel plates is symmetrically provided with two groups of four reserved holes for tension bolts.

[0010] Furthermore, two groups of reserved holes for tension bolts are respectively arranged at positions close to the threaded holes at both ends of the steel plate, and the spacing between the two groups of reserved holes for tension bolts is the same. The spacing between the reserved holes for tension bolts is smaller than the width of the narrow part of the structural column; or larger than the width of the narrow part of the structural column and smaller than the width of the wide part of the structural column.

[0011] Furthermore, two groups of reserved holes for tension bolts are respectively arranged at positions close to the threaded holes at both ends of the steel plate, and the spacings between the two groups of reserved holes for tension bolts are different. The spacing of the reserved holes for tension bolts of the group with a small spacing is smaller than the width of the narrow part of the structural column; the spacing of the reserved holes for tension bolts of the group with a large spacing is larger than the width of the narrow part of the structural column and smaller than the width of the wide part of the structural column.

[0012] Furthermore, a steel gasket is provided between the tension bolts and the steel plate.

[0013] The beneficial effects of the utility model are:

[0014] (1) Use steel formwork, reserve holes for tension bolts, fix the tension bolts with steel washers and nuts, cast in sections, and ensure the casting quality by vibrating the sections. The steel plate is fixed with tension bolts, and the bolt tightening size can be adjusted to ensure the clamping of the clamping form and prevent the slurry from leaking.

[0015] (2) Using tension bolts to tie the columns internally instead of externally on the walls can ensure that the walls are not damaged. The concrete quality inside the columns can also be guaranteed because the concrete is poured in sections.

[0016] (3) Because the device is foldable and can be poured in sections, the vibrating rod can be inserted into the structural column, which can ensure the quality of concrete and greatly reduce the phenomenon of honeycombs, holes, and even exposed column bars on the surface of the structural column;

[0017] (4) Due to the use of circular folding steel formwork for structural columns, during the pouring process, the concrete inside the structural column is vibrated while the concrete is poured, and the circular folding steel formwork for the structural column is installed, which can effectively vibrate the concrete and solve the problem of poor appearance quality of the concrete after demolding;

[0018] (5) Simple structure, easy installation and disassembly, low cost, and long service life compared to traditional wooden formwork.

[0019] The present invention is explained in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the connection structure of the utility model and the structural column and wall;

[0021] Figure 2 This is a schematic diagram of the splicing structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the main structure of the template unit structure of the utility model;

[0023] Figure 4 It is a side view structural diagram of the template unit structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the connecting plate assembly of the utility model;

[0025] Figure 6 It is a schematic diagram of the positions of reserved holes for tension bolts in steel plates of the utility model.

[0026] In the figure: 1 template unit, 2 connecting plate assembly, 21 upper connecting plate, 22 lower connecting plate, 23 connecting plate hole, 24 rotating shaft, 3 steel plate, 31 threaded hole, 32 reserved hole for tension bolts, 33 template unit width, 34 reserved hole spacing for tension bolts, 4 tension bolts, 5 bolts, 6 steel gaskets;

[0027] 100 wall, 200 structural column, 201 narrow part of structural column, 202 wide part of structural column, 300 structural column steel bars, 400 reserved space for structural column. DETAILED DESCRIPTION

[0028] Embodiment 1:

[0029] This embodiment is a structural column circular folding steel formwork, such as Figures 1 to 6 As shown, it includes a wall 100 and a structural column 200. The circular folding steel formwork is composed of a plurality of formwork units 1. Each of the formwork units 1 includes a foldable connecting plate assembly 2, two steel plates 3 and a plurality of tension bolts 4. The structure of the connecting plate assembly 2 is similar to a hinge structure. The upper connecting plate 21 and the lower connecting plate 22 of the connecting plate assembly 2 are rotatably connected together by a rotating shaft 24. They are foldable and openable, and the maximum opening and closing angle is 180°. The upper connecting plate 21 and the lower connecting plate 22 are both provided with a plurality of connecting plate holes 23. The arrangement of the connecting plate holes 23 of the upper connecting plate 21 and the lower connecting plate 22 is the same, which is convenient for construction and assembly. The steel plate 3 is provided with threaded holes 31 near the upper and lower edges that can match and connect with the connection plate holes 23. In order to ensure that the surface of the cast structural column 200 is flat, the threaded holes 31 are designed not to penetrate the steel plate 3. The two steel plates 3 are respectively fixedly connected to the upper connection plate 21 and the lower connection plate 22 by bolts 5, and the two steel plates 3 are aligned and contacted. The width 33 of the template unit is greater than or equal to the width of the structural column wide part 202. At least two tension bolt reserved holes 32 are also provided on the steel plate 3. The tension bolts 4 pass through the tension bolt reserved holes 32 and the structural column reserved space 400 to fix another template unit 1 together. The template units 1 are connected by the connection plate assembly 2. A steel gasket 6 is provided between the tension bolts 4 and the steel plate 3.

[0030] Embodiment 2:

[0031] This embodiment is an improvement of the first embodiment, which is a refinement of the arrangement of the tension bolt reserved holes 32. In this embodiment, two tension bolt reserved holes 32 are symmetrically arranged on each steel plate 3, and the spacing 34 between the tension bolt reserved holes is smaller than the width of the narrow portion 201 of the structural column. Figure 1 , Figure 2 and Figure 6 As shown in b.

[0032] Embodiment three:

[0033] This embodiment is an improvement of the first embodiment, and is a refinement of another arrangement of the tension bolt reserved holes 32. In this embodiment, two tension bolt reserved holes 32 are symmetrically arranged on each steel plate 3, and the spacing of the tension bolt reserved holes 32 is greater than the width of the narrow part 201 of the structural column and smaller than the width of the wide part 202 of the structural column. Figure 1 , Figure 2 and Figure 6 As shown in a.

[0034] Embodiment 4:

[0035] This embodiment is an improvement of the first embodiment, and is a refinement of the arrangement of the reserved holes 32 for tension bolts. In this embodiment, two groups of four reserved holes 32 for tension bolts are arranged, and the two groups of reserved holes 32 for tension bolts are respectively arranged at positions close to the threaded holes 31 at both ends of the steel plate 3. The spacing 34 of the two groups of reserved holes for tension bolts is the same, and the spacing 34 of the reserved holes for tension bolts is smaller than the width of the narrow portion 201 of the structural column, or larger than the width of the narrow portion 201 of the structural column and smaller than the width of the wide portion 202 of the structural column. Figure 6 e and Figure 6 As shown in d.

[0036] Embodiment five:

[0037] The present embodiment is an improvement of the first embodiment, and is a refinement of the arrangement of the reserved holes 32 for tension bolts. The present embodiment provides two groups of four reserved holes 32 for tension bolts. The two groups of reserved holes 32 for tension bolts are respectively arranged at positions close to the threaded holes 31 of the steel plate 3. The spacings 34 of the two groups of reserved holes for tension bolts are different. The spacings 34 of the reserved holes for tension bolts in one group are smaller than the width of the narrow portion 201 of the structural column, and the spacings 34 of the reserved holes for tension bolts in another group are larger than the width of the narrow portion 201 of the structural column and smaller than the width of the wide portion 202 of the structural column.

[0038] The utility model structural column circular folding steel formwork installation construction method steps:

[0039] According to the design and construction requirements, 400 construction column spaces are reserved when building the wall 100;

[0040] Construction structural column steel bars 300;

[0041] Install the first section of the bottom formwork unit 1, and fix the other bottom formwork unit 1 together by passing the tension bolts 4 through the tension bolt reserved holes 32 and the structural column reserved space 400;

[0042] Pour structural column concrete and vibrate structural column concrete;

[0043] The second section of the formwork unit 1 is installed through the connecting plate assembly 2, and the tension bolts 4 pass through the tension bolt reserved holes 32 and the structural column reserved space 400 to fix another formwork unit 1 together;

[0044] Pour structural column concrete and vibrate structural column concrete;

[0045] Repeat the above steps in sequence until the pouring construction is completed.

[0046] The traditional construction of structural columns is to build the formwork first, tie it to the external wall, and then pour after the formwork is built. Since the internal space of the structural column is small and the steel bars are dense, it is difficult to vibrate the concrete. Secondly, the pouring height is too high, and the vibration is not in place, which affects the quality of the structural column. Since the formwork is long, the contact between the formwork and the wall is not tight in most cases, and there is a large gap. The poured concrete mortar flows down from the gap in large quantities, causing serious honeycombs and rough surfaces on the surface of the structural column. The use of the circular folding steel formwork of the structural column of the utility model can be vibrated while pouring, and the next section of the formwork unit is installed after the vibration is completed. Since the formwork unit is short and the tension bolts are tightened, it effectively solves the problem of small internal space of the steel bars and inadequate vibration, and the problem of poor appearance quality of the concrete after the formwork is removed due to the loose contact between the formwork and the wall, thereby improving the construction quality of the structural column.

[0047] The utility model has a simple structure, gradual installation and disassembly, and low cost, and compared with the traditional wooden template, it has a long service life and good effect.

[0048] Finally, it should be noted that the above is only used to illustrate the technical solution of the utility model and not to limit it. Although the utility model is described in detail with reference to the preferred arrangement scheme, ordinary technicians in this field should understand that the technical solution of the utility model (such as the connection method, the shape of each element, etc.) can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.

Claims

1. A circular folding steel formwork for a structural column, comprising a wall (100) and a structural column (200), characterized in that: The structural column circular folding steel formwork is composed of a plurality of formwork units (1), each of the formwork units (1) comprising a foldable connecting plate assembly (2), two steel plates (3) and a plurality of tension bolts (4), the connecting plate assembly (2) comprising an upper connecting plate (21) and a lower connecting plate (22) which are rotatably connected together, the upper connecting plate (21) and the lower connecting plate (22) are both provided with a plurality of connecting plate holes (23), the connecting plate holes (23) of the upper connecting plate (21) and the connecting plate holes (23) of the lower connecting plate (22) are arranged in the same manner, and the steel plates (3) are provided with bolts near the upper and lower edges which can mate with the connecting plate holes. (23) a threaded hole (31) for matching connection, the threaded hole (31) does not penetrate the steel plate (3), the two steel plates (3) are respectively fixedly connected to the upper connecting plate (21) and the lower connecting plate (22) by bolts (5), at least one group of two tension bolt reserved holes (32) are also provided on the steel plate (3), the width of the template unit (33) is greater than the width of the wide part (202) of the structural column, the tension bolt (4) passes through the tension bolt reserved hole (32) and the structural column reserved space (400) to fix another template unit (1) together, and the template units (1) are connected by a connecting plate assembly (2).

2. The structural column circular folding steel formwork according to claim 1 is characterized in that: Each of the steel plates (3) is symmetrically provided with a group of two tension bolt reserved holes (32).

3. The structural column circular folding steel formwork according to claim 2 is characterized in that: Two tension bolt reserved holes (32) are arranged at positions close to the threaded holes (31), and a distance (34) between the two tension bolt reserved holes is smaller than a width of the narrow portion (201) of the structural column.

4. The structural column circular folding steel formwork according to claim 2 is characterized in that: The reserved holes (32) for the tension bolts are arranged at positions close to the threaded holes (31), and the distance (34) between the two reserved holes for the tension bolts is greater than the width of the narrow portion (201) of the structural column and less than the width of the wide portion (202) of the structural column.

5. The structural column circular folding steel formwork according to claim 1 is characterized in that: Each of the steel plates (3) is symmetrically provided with two groups of four tension bolt reserved holes (32).

6. The structural column circular folding steel formwork according to claim 5 is characterized in that: Two groups of pre-set holes (32) for tension bolts are respectively arranged at positions close to the threaded holes (31) at both ends of the steel plate (3), and the spacing (34) between the two groups of pre-set holes for tension bolts is the same. The spacing (34) between the pre-set holes for tension bolts is smaller than the width of the narrow portion (201) of the structural column; or larger than the width of the narrow portion (201) of the structural column and smaller than the width of the wide portion (202) of the structural column.

7. The structural column circular folding steel formwork according to claim 5 is characterized in that: Two groups of reserved holes (32) for tension bolts are respectively arranged at positions close to the threaded holes (31) at both ends of the steel plate (3), and the spacings (34) of the two groups of reserved holes for tension bolts are different. The spacing (34) of the reserved holes for tension bolts in one group is smaller than the width of the narrow portion (201) of the structural column; and the spacing (34) of the reserved holes for tension bolts in one group is larger than the width of the narrow portion (201) of the structural column and smaller than the width of the wide portion (202) of the structural column.

8. The structural column circular folding steel formwork according to claim 1 is characterized in that: A steel gasket (6) is provided between the tension bolt (4) and the steel plate (3).