Formwork structure at deformation joint

Abstract

The utility model discloses a template structure at a deformation joint, which comprises a steel template, a lifting hole arranged at the upper half part of the steel template, a left pull ring welded at the edge of the left side of the steel template, a right pull ring welded at the edge of the right side of the steel template, and bolt holes distributed in a dot matrix on the outer surface of the steel template, and a nut is coaxially welded at each bolt hole. The steel formwork is adopted to replace a traditional wood formwork construction method, and the steel formwork can be mounted or dismounted in the deformation joint more conveniently and rapidly through the hoisting technology. In the construction process, every two adjacent layers do not interfere with each other, and the problem of staggered layer construction is effectively avoided. Once the construction task on one side is completed, the steel formwork can be hoisted to the other side to be continuously used, and therefore the construction progress is remarkably accelerated. In addition, due to the reusability of the steel formwork, the construction cost is greatly saved.

Description

Technical Field

[0001] The utility model relates to the technical field of expansion joint construction, and more specifically, to a template structure at an expansion joint. Background Art

[0002] In the design of high-rise buildings, expansion joints are often used to divide the entire structure into several independent units. The space between these expansion joints is extremely limited, making it extremely difficult to construct the wall formwork on both sides simultaneously. Expansion joints play a crucial role in high-rise and super-high-rise buildings. They relieve stress accumulated by external factors through structural deformation, ensuring the safety of the building structure. However, during the construction of shear wall formwork on both sides of the expansion joints, due to their narrow width and large length, traditional wooden formwork construction techniques make it difficult for workers to access the expansion joints to remove the formwork. As a result, the formwork on both sides of the shear wall must be discarded after construction is completed. This practice not only increases construction costs but also limits the deformation capacity of the structure, further compromising the safety of the entire building. Therefore, traditional wooden formwork construction techniques are not suitable for shear wall construction between expansion joints. Expansion joints are typically filled with extruded polystyrene boards to meet design requirements. For residential projects with larger units, staggered construction is even necessary, which often leads to construction delays. Utility Model Content

[0003] In order to solve the technical problems of high construction cost and slow construction progress of existing wooden formwork, the utility model innovatively provides a formwork structure at the expansion joint, which has the advantages of easy installation or disassembly, avoiding the problem of staggered construction, improving construction progress, and saving construction costs.

[0004] In order to achieve the above-mentioned technical objectives, the utility model discloses a template structure at a deformation joint, including a steel template, the upper half of the steel template is provided with a hanging hole, a left pull ring is welded at the left edge of the steel template, and a right pull ring is welded at the right edge of the steel template. The outer surface of the steel template is provided with bolt holes distributed in a dot matrix, and a nut is coaxially welded at each bolt hole.

[0005] Furthermore, the utility model provides a template structure at a deformation joint, wherein two parallel left back ribs are welded to the left side of the steel template, the two left back ribs are arranged on both sides of a row of bolt holes close to the left pull ring, and the nuts corresponding to the row of bolt holes close to the left pull ring are welded to the two left back ribs.

[0006] Furthermore, the utility model provides a template structure at a deformation joint, wherein two parallel right back ribs are welded on the right side of the steel template, the two right back ribs are arranged on both sides of a row of bolt holes close to the right pull ring, and the nuts corresponding to the row of bolt holes close to the right pull ring are welded on the two right back ribs.

[0007] Furthermore, the utility model provides a template structure at a deformation joint, wherein the left and right support rods are welded to the left and right ends of the bolt holes between the left back rib and the right back rib on the steel template, and the nuts corresponding to the bolt holes between the left back rib and the right back rib are welded to the left support rod and the right support rod.

[0008] Furthermore, the utility model provides a template structure at a deformation joint, wherein the nut is a mountain-shaped nut.

[0009] Furthermore, the utility model provides a template structure at a deformation joint, wherein the left back rib, the right back rib, the left support rod and the right support rod are all steel bars.

[0010] Furthermore, the utility model provides a template structure at a deformation joint, wherein the number of the left pull rings and the right pull rings is the same as the number of rows of bolt holes, the left pull ring is located on the left side of each row of bolt holes, and the right pull ring is located on the right side of each row of bolt holes.

[0011] Furthermore, the utility model provides a template structure at a deformation joint, wherein the number of the hanging holes is two, and the two hanging holes are spaced apart on the left and right.

[0012] Furthermore, the utility model provides a template structure at a deformation joint, wherein the distance between two adjacent bolt holes in each row is 500 mm.

[0013] Furthermore, the utility model provides a template structure at a deformation joint, wherein the distance between the first bolt hole and the adjacent bolt hole in each row of bolt holes is 350 mm, the distance between the last bolt hole and the adjacent bolt hole in each row of bolt holes is 350 mm, and the distance between two adjacent bolt holes between the first and last bolt holes in each row of bolt holes is 500 mm.

[0014] The beneficial effects of this utility model include: It uses steel formwork instead of traditional wooden formwork construction methods. The steel formwork is hoisted through lifting holes, making it easier to install and remove the steel formwork within the expansion joint. During construction, adjacent layers do not interfere with each other, effectively avoiding the problem of staggered construction. Once construction on one side is completed, the steel formwork can be hoisted to the other side for continued use, significantly improving construction progress. Furthermore, the reusability of the steel formwork significantly reduces construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a template structure at a deformation joint of the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the partially enlarged structure of the middle part A;

[0017] Figure 3 This is a structural diagram of the single-side formwork construction of the expansion joint of the utility model;

[0018] Figure 4 This is a structural diagram of the utility model in which the mold on one side of the expansion joint is removed and the construction is carried out on the other side;

[0019] Figure 5 This is a structural diagram of the construction on the other side of the expansion joint of the utility model. DETAILED DESCRIPTION

[0020] The following is a detailed explanation and description of the template structure at a deformation joint of the utility model in conjunction with the drawings in the specification.

[0021] like Figure 1 As shown, the utility model discloses a template structure at a deformation joint, which mainly includes a steel template 1. The upper half of the steel template 1 is provided with a lifting hole 11, and the steel template 1 can be lifted to the layout position through the lifting hole 11. A left pull ring 12 is welded to the left edge of the steel template 1, and a right pull ring 13 is welded to the right edge of the steel template 1. The left pull ring 12 and the right pull ring 13 are used to connect with the main back rib on the wall end face to position the left and right ends of the steel template 1. The outer surface of the steel template 1 is provided with bolt holes 14 distributed in a dot matrix, and each bolt hole 14 is coaxially welded with a nut 15, and the nut 15 is used to fix the tension screw from the wooden template on the inner side of the wall.

[0022] In actual use, first use a steel wire rope to pass through the lifting hole 11 and tie it to the lifting ring of the crane, then lift the steel formwork 1, align the bolt holes 14 in the top row with the bolt holes 14 on the inner formwork, and connect the left pull ring 12 and the right pull ring 13 to the main back rib on the wall end face; then pass the tension screw through the bolt hole 14 on the steel formwork 1 and screw in the welded nut 15; then adjust the verticality of the steel formwork 1, and when its verticality meets the requirements, tighten the tension screw appropriately; finally remove the steel wire rope to complete the installation of the steel formwork 1. When it is necessary to remove the steel formwork 1, first use a steel wire rope to pass through the lifting hole 11 and tie it to the lifting ring of the crane, then remove the tension screw, and finally lift the steel formwork 1 to the designated position to complete the removal of the steel formwork 1. Using the steel formwork 1 to replace the traditional wooden formwork construction method and lifting the steel formwork 1 through the lifting hole 11 can make it more convenient to install or remove the steel formwork 1 in the expansion joint. During the construction process, adjacent layers do not interfere with each other, effectively avoiding the problem of staggered construction. Once the construction task on one side is completed, the steel formwork 1 can be hoisted to the other side for continued use (see Figure 3-5 In addition, the reusability of the steel formwork 1 greatly saves construction costs.

[0023] To ensure the overall rigidity of the steel template 1, two parallel left back ribs 16 are welded on the left side of the steel template 1. The two left back ribs 16 are arranged on both sides of a row of bolt holes 14 near the left pull ring 12. The nuts 15 corresponding to the row of bolt holes 14 near the left pull ring 12 are welded to the two left back ribs 16. Two parallel right back ribs 17 are welded on the right side of the steel template 1. The two right back ribs 17 are arranged on both sides of a row of bolt holes 14 near the right pull ring 13. The nuts 15 corresponding to the row of bolt holes 14 near the right pull ring 13 are welded to the two right back ribs 17. Figure 2 As shown, the left and right ends of the bolt holes 14 between the left and right back ribs 16 and 17 on the steel formwork 1 are welded to left and right support rods 18 and 19, respectively. Nuts 15 corresponding to the bolt holes 14 between the left and right back ribs 16 and 17 are welded to the left and right support rods 18 and 19, respectively. The left and right support rods 18 and 19 serve as local reinforcement for the steel formwork 1. The nuts 15 are U-shaped nuts 15. The left and right back ribs 16, 17, left and right support rods 18 and 19 are all steel bars. The U-shaped nuts 15 can be firmly welded to the steel bars on both sides to ensure connection strength.

[0024] In one embodiment of the present invention, the thickness of the steel formwork 1 is set to 10 mm. The number of left and right pull rings 12, 13 is the same as the number of rows of bolt holes 14. The left pull ring 12 is located to the left of each row of bolt holes 14, and the right pull ring 13 is located to the right of each row of bolt holes 14, ensuring a more stable connection to the main back rib. Two lifting holes 11 are provided, and they are spaced apart from each other, ensuring more stable and safe operation during lifting operations. The distance between two adjacent bolt holes 14 in each row is 500 mm. The distance between the first bolt hole 14 and the adjacent bolt hole 14 in each row of bolt holes 14 is 350 mm, the distance between the last bolt hole 14 and the adjacent bolt hole 14 in each row of bolt holes 14 is 350 mm, and the distance between two adjacent bolt holes 14 between the first and last bolt holes 14 in each row of bolt holes 14 is 500 mm. This can limit the number of tension screws set, ensure that the steel formwork 1 is subjected to more uniform force, ensure the size of the cast components, and improve the construction quality.

[0025] See also Figure 3-Figure 5 , the construction of the utility model is further described below:

[0026] 1. Rebar binding and acceptance

[0027] Transport the formed steel bars to the working surface, roll straight thread connections on the hidden column steel bars, inspect the joint positions, tie the hidden column steel bars and hang them vertically, tie the lintel steel bars, tie the wall steel bars and pull wires for leveling, weld the formwork supports, install the opening formwork and conduct self-inspection and handover inspection. Ask the supervisor to conduct hidden inspection and prepare to proceed to the next process.

[0028] In this step, the shear wall thickness is controlled by tying prefabricated concrete pads at the intersection of the vertical and horizontal reinforcement bars. Additionally, a row of short, shaped reinforcement bars is welded or tied to the exposed vertical reinforcement bars at the top of the formwork, or a small wooden strip (with the same thickness as the protective layer) is nailed to the top of both sides of the formwork to prevent misalignment of the exposed vertical reinforcement bars. The sleeves for the tension screws can be PVC pipes (buried in the concrete after use and not removed). Their length is equal to the shear wall thickness. Later, the bolt holes are chiseled into splayed openings 30mm from the inner wall surface, and then expansive and waterproof mortar is poured.

[0029] 2. Installation of steel formwork 1

[0030] 2.1 20 inner wooden formworks are installed

[0031] According to the plan requirements, the wooden formwork 20 is placed vertically and laid at equal intervals. After the mold is closed, the steel pipe main back rib is installed on the top row, the tension screw 30 is inserted, and the nuts are installed.

[0032] 2.2 Hoisting steel formwork 1

[0033] Pass the wire rope through the lifting hole 11 of the steel template 1 and hang it on the lifting ring. Lift the steel template 1, connect the left pull ring 12 and the right pull ring 13 to the main back rib on the wall end surface, align the top row of bolt holes 14 of the steel template 1 with the inner wooden template bolt holes 14, pass the tension screw 30 through the reserved bolt hole 14 of the steel plate, and screw it into the welded nut 15 (as shown in the figure). Figure 4 shown).

[0034] 2.3 Reinforcement support

[0035] Install the remaining steel back ribs 40, screw the remaining tension screws 30 into the nuts 15 (as shown in the figure). Figure 5 shown).

[0036] 3. Steel template 1 adjustment (before 2.3)

[0037] During construction, wires can be placed simultaneously on both ends of the steel formwork 1, and a horizontal line can be drawn at the top of the formwork. The outer formwork can then be adjusted to meet verticality requirements by adjusting the inclination of the steel pipe braces or the extension of the steel top pipe. Once verticality is achieved, the braces and steel pipe ribs on the outer formwork are immediately connected to the floor system using fasteners. Concrete can then be poured on one side of the expansion joint.

[0038] 4. Steel formwork 1 removal

[0039] Properly unscrew the tension screw 30 from the nut 15 of the steel template 1, pass the wire rope through the hanging hole 11, and hang it on the lifting ring. Remove the steel back rib and the tension screw 30, and hoist the steel template 1 to the designated position.

[0040] 6. Clean up and repair

[0041] Clean the steel template 1, use a ruler to check and repair the flatness of the steel template 1, and then apply an oily release agent for later use.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0043] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0044] In the description of this specification, the description with reference to the terms "this embodiment", "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and simple improvements made to the essential contents of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A template structure at a deformation joint, characterized by: It includes a steel template, the upper half of which is provided with a hanging hole, a left pull ring welded to the left edge of the steel template, a right pull ring welded to the right edge of the steel template, and bolt holes distributed in a lattice on the outer surface of the steel template, each of which is coaxially welded with a nut.

2. The template structure at the expansion joint according to claim 1, characterized in that: Two parallel left back ribs are welded on the left side of the steel template. The two left back ribs are arranged on both sides of a row of bolt holes close to the left pull ring. The nuts corresponding to the row of bolt holes close to the left pull ring are welded on the two left back ribs.

3. The template structure at the expansion joint according to claim 2, characterized in that: Two parallel right back ribs are welded on the right side of the steel template. The two right back ribs are arranged on both sides of a row of bolt holes close to the right pull ring. The nuts corresponding to the row of bolt holes close to the right pull ring are welded on the two right back ribs.

4. The formwork structure at a deformation joint according to claim 3, characterized in that: The left and right support rods are welded to the left and right end sides of the bolt holes between the left back rib and the right back rib on the steel template, and the nuts corresponding to the bolt holes between the left back rib and the right back rib are welded to the left and right support rods.

5. The formwork structure for an expansion joint according to any one of claims 2 to 4, characterized in that: The nut is a mountain-shaped nut.

6. The formwork structure at a deformation joint according to claim 4, characterized in that: The left back rib, right back rib, left support rod and right support rod are all steel bars.

7. The template structure at the expansion joint according to claim 1, characterized in that: The number of the left pull rings and the right pull rings is the same as the number of rows of bolt holes. The left pull ring is located on the left side of each row of bolt holes, and the right pull ring is located on the right side of each row of bolt holes.

8. The template structure at the expansion joint according to claim 1, characterized in that: There are two hanging holes, which are spaced apart on the left and right sides.

9. The template structure at the expansion joint according to claim 1, characterized in that: The distance between two adjacent bolt holes in each row is 500 mm.

10. The template structure at the expansion joint according to claim 1, characterized in that: The distance between the first bolt hole and the adjacent bolt hole in each row of bolt holes is 350 mm, the distance between the last bolt hole and the adjacent bolt hole in each row of bolt holes is 350 mm, and the distance between two adjacent bolt holes between the first and last bolt holes in each row of bolt holes is 500 mm.

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