Inner support positioning device for shear wall formwork

Abstract

The utility model discloses an inner support positioning device for shear wall formworks, the inner support positioning device is located between two shear wall formworks, it can be guaranteed that the thickness of a shear wall formed after pouring is within a standard range, and the inner support positioning device adopts two detachably connected prefabricated parts; the prefabricated parts with different preset lengths can be spliced according to requirements, so that the prefabricated parts can be suitable for different working conditions and are convenient to transport; the U-shaped notch groove is formed in the prefabricated part and used for positioning the wall column steel bar, the U-shaped notch groove can adapt to the wall column steel bar and can be matched with the wall column steel bar for positioning when the wall column steel bar has certain position deviation in the first horizontal direction, and the prefabricated part and the wall column steel bar can be fixedly connected together through the connecting part between the U-shaped notch groove and the wall column steel bar. And therefore, the prefabricated part does not deviate. According to the positioning mode, fire operation is not needed, when the split bolts tighten the two shear wall formworks, the position of the prefabricated part does not deviate, and then it is guaranteed that the position of the wall side line does not deviate.

Description

Technical Field

[0001] The present application relates to the field of building construction, and in particular to an internal support positioning device for a shear wall formwork. Background Art

[0002] During concrete shear wall construction, it's necessary to install locating bars at the bottom of the shear wall formwork. These bars need to be fixed to the ground, their length consistent with the wall thickness, and their ends flush with the wall edge, ensuring they're securely fixed. When installing reinforced shear wall formwork, tension bolts (or pull tabs) and diagonal braces outside the formwork apply pressure inward from both sides of the wall to clamp the wall formwork. The locating bars secure the bottom of the formwork, ensuring it aligns with the wall edge and doesn't deviate.

[0003] The following positioning methods are commonly used in the prior art: Figure 1 As shown in (a), the positioning reinforcement (label 40) is directly welded to the wall column reinforcement (label 20). Improper operation of this method may cause welding damage to the wall column reinforcement. Figure 1 As shown in (b), when pouring floor slab concrete, pre-embedded steel bars are placed at the base of the wall. After pouring the concrete, the positioning bars are welded to the pre-embedded steel bars (No. 50). This method requires pre-embedded steel bars throughout the entire concrete pouring process, which is labor-intensive. The pre-embedded steel bars may fall off or be covered with concrete during the concrete pouring process, making it difficult to set the positioning bars. At the same time, this method and the first welding method mentioned above are both hot work operations, which pose a certain degree of safety risk.

[0004] In addition, there is another way to fix the positioning bars in the existing technology, that is, drilling holes in the concrete floor, and then the positioning bars adopt a structure with L-shaped end heads, which are connected to the holes in the floor, so that the positioning bars cannot move left and right. However, drilling holes in the floor may cause damage and blockage to the electromechanical wiring pipes in the floor slab. Utility Model Content

[0005] An embodiment of the present application provides an internal support positioning device for a shear wall formwork, which can be positioned and connected with the wall column steel bars when the displacement of the wall column steel bars deviates, thereby stably limiting the shear wall formwork.

[0006] The present application discloses an internal support positioning device for a shear wall formwork, comprising two detachably connected prefabricated parts; the prefabricated parts have a preset length L1 in a first horizontal direction, and along the first horizontal direction, the end faces of the prefabricated parts abut against the inner sides of the shear wall formwork; the two prefabricated parts are both provided with a U-shaped notch groove at one end in the first horizontal direction, and the U-shaped notch groove is sleeved on the external wall column steel bars; the inner wall surface of the U-shaped notch groove has a first predetermined gap H1 between the wall column steel bars in the first horizontal direction, and the first predetermined gap H1 is filled with a connecting portion, and the connecting portion is used to fix the wall column steel bars and the prefabricated parts together.

[0007] The internal support positioning device for shear wall formwork of the present application has at least the following beneficial effects:

[0008] The internal support positioning device of this embodiment is located between the two shear wall formworks, which can ensure that the thickness of the shear wall formed after pouring is within the standard range. The internal support positioning device adopts two detachably connected prefabricated parts, and can splice prefabricated parts of different preset lengths according to needs. It can be applied to different working conditions and is convenient for transportation. The prefabricated parts are provided with U-shaped notch grooves and wall column steel bars for positioning. The design of the U-shaped notch groove can adapt to the wall column steel bars in the first horizontal direction. When there is a certain position deviation of the wall column steel bars, it can still cooperate with the wall column steel bars for positioning. The wall column steel bars can limit the displacement of the two prefabricated parts in the second horizontal direction, and the connection between the U-shaped notch groove and the wall column steel bars can fix the prefabricated parts and the wall column steel bars together, so that the prefabricated parts will not be offset. The positioning method of this application does not require hot work. When the tension bolts are tightened on the two shear wall formworks, the position of the prefabricated parts will not be offset, thereby ensuring that the position of the wall edge line will not deviate. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0010] Figure 1 These are two installation methods for positioning ribs in the prior art;

[0011] Figure 2 This is a layout diagram of the internal support positioning device of an embodiment of the present application when in use;

[0012] Figure 3 yes Figure 2 Horizontal side view of;

[0013] Figure 4 yes Figure 3 A top-down cross-sectional view of (only part of the structure is shown);

[0014] Figure 5 This is a schematic structural diagram of the internal support positioning device according to an embodiment of the present application;

[0015] Figure 6 yes Figure 5 A top view of

[0016] Figure 7 It is a bottom view of the T-shaped protrusion;

[0017] Description of the reference numerals is as follows:

[0018] 10. Internal support positioning device;

[0019] 11. Prefabricated part; 111. U-shaped notch; 111a. Horn guide port; 111b. Diversion groove;

[0020] 12. Connecting part;

[0021] 13. T-shaped protrusion; 131. transverse portion; 132. longitudinal portion; 13a. chamfer;

[0022] 14, T-shaped slot; 141, first slot section; 142, second slot section;

[0023] 20. Wall column reinforcement;

[0024] 30. Shear wall formwork;

[0025] 40. Positioning ribs;

[0026] 50. Embedded reinforcement;

[0027] C1, wall edge line; C2, floor surface; C3, control line. DETAILED DESCRIPTION

[0028] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by illustrating the examples of the present application.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0030] like Figure 2 and Figure 3 As shown, this embodiment discloses an internal support positioning device 10 for a shear wall formwork. The internal support positioning device 10 is arranged on the upper surface of the floor slab and is located at the bottom position of two shear wall formworks 30. The internal support positioning device 10 is supported between the two shear wall formworks 30, which can play a role in maintaining the distance between the two shear wall formworks 30 and the position of the shear wall.

[0031] like Figure 2 and Figure 3 As shown, the internal support positioning device 10 includes two detachably connected prefabricated parts 11. The prefabricated parts 11 have a preset length L1 in the first horizontal direction, where L1 is equal to the thickness of the shear wall (i.e., the shear wall to be cast). The two prefabricated parts 11 are arranged on the upper surface of the floor slab. Along the second horizontal direction, an internal support positioning device 10 is arranged every 700 mm. In this embodiment, the first horizontal direction and the second horizontal direction intersect vertically in the horizontal plane. In the first horizontal direction, the end face of the left prefabricated part 11 abuts against the inner side of one shear wall formwork 30, and the end face of the right prefabricated part 11 abuts against the inner side of another shear wall formwork 30.

[0032] like Figure 3 As shown, the prefabricated part 11 is provided with a U-shaped notch groove 111 along the first horizontal direction. The U-shaped notch groove 111 is a through groove in the height direction, and its top view shape is U-shaped. One end of the U-shaped notch groove 111 is connected to one side of the horizontal end face of the prefabricated part 11. The U-shaped notch groove 111 is sleeved on the external wall column steel bar 20 (the wall column steel bar 20 has been fixed on the floor surface in advance). The U-shaped notch groove 111 cooperates with the wall column steel bar 20 to limit the prefabricated part 11 from displacement in the second horizontal direction. At the same time, since the U-shaped notch groove 111 is provided along the first horizontal direction, it can adapt to the position deviation of the wall column steel bar 20 in the first horizontal direction, thereby avoiding the problem that the prefabricated part 11 cannot be matched and positioned with the wall column steel bar 20.

[0033] like Figure 4 and Figure 5 As shown, in some embodiments, the length of the U-shaped notch 111 in the first horizontal direction is preferably configured as L2; the outer diameter of the wall column steel bar 20 is configured as D1, and L2 is 2 to 5 times (for example, 4 times) D1. By designing L2 and D1, the wall column steel bar 20 can have a certain displacement deviation in the first horizontal direction, while also facilitating the formation of a first predetermined gap H1 between the inner wall surface of the U-shaped notch 111 and the wall column steel bar 20 in the first horizontal direction (the first predetermined gap facilitates filling the connecting portion 12). The inner width of the U-shaped notch 111 in the second horizontal direction is configured as D2, and D2 is 1.05 to 1.5 times (for example, 1.2 times) D1. By designing D2 and D1, the U-shaped notch 111 can be easily fitted onto the outer circumference of the wall column steel bar 20, and a smaller gap can be allowed between the U-shaped notch 111 and the wall column steel bar 20 in the second horizontal direction, thereby accommodating the misalignment of the left and right rows of wall column steel bars 20.

[0034] like Figure 4 and Figure 5 As shown, in some embodiments, a trumpet guide opening 111 a is preferably provided at the opening position of the U-shaped notch groove 111 , and the trumpet guide opening 111 a facilitates inserting the wall column reinforcement 20 into the U-shaped notch groove 111 , thereby facilitating the installation of the prefabricated component 11 .

[0035] like Figure 4 and Figure 5 As shown, in the first horizontal direction, there is a first predetermined gap H1 (H1 can be 10 mm or 20 mm) between the inner wall surface of the U-shaped notch groove 111 and the outer periphery of the wall column steel bar 20, and the first predetermined gap H1 is filled with a connecting portion 12, which connects the inner wall surface of the U-shaped notch groove 111 and the outer periphery of the wall column steel bar 20 respectively, so that the prefabricated part 11 and the wall column steel bar 20 can be fixed together. The reason for fixing the prefabricated part 11 and the wall column steel bar 20 together is that when the shear wall formwork 30 on both sides is tightened by using tension bolts, if the prefabricated part 11 can be offset to the left and right, then the edge line of the shear wall formed by the final casting will not be in the predetermined position. In this embodiment, the prefabricated wall column steel bar 20 and the prefabricated part 11 that have been installed in advance are connected by the connecting portion 12, which can solve the problem of movement of the prefabricated part 11.

[0036] In some preferred embodiments, the connection portion 12 is made of mortar, epoxy resin, or metal adhesive. In other words, the connection portion 12 is formed by filling with fluid mortar, epoxy resin, or metal adhesive and then solidifying. In this embodiment, the connection portion 12 is formed by solidifying mortar, and the raw materials are easily available at the construction site.

[0037] like Figure 4 and Figure 5As shown, in some preferred embodiments, each prefabricated part 11 is provided with a guide groove 111b, which is connected to the inside of the first predetermined gap H1 formed by the U-shaped notch groove 111 and the wall column steel bar 20. The guide groove 111b can guide the fluid mortar into the first predetermined gap H1 and form the connecting portion 12 after solidification. In this embodiment, the guide groove 111b is designed to improve work efficiency to a certain extent when filling the mortar. If the guide groove 111b is not designed, the staff needs to fill the mortar directly into the first predetermined gap. Because the first predetermined gap H1 is generally small, the staff may not be able to accurately align the mortar, resulting in low filling efficiency. The design of the guide groove 111b can facilitate the staff to directly fill the mortar into the guide groove 111b, and the fluid mortar naturally flows into the first predetermined gap H1 and solidifies to form the connecting portion 12.

[0038] like Figure 4 and Figure 5 As shown, the two prefabricated parts 11 of the internal support positioning device 10 of this embodiment are detachably connected, and the detachable connection method is as follows: a T-shaped protrusion 13 is provided on the end face of one prefabricated part 11, and a T-shaped groove 14 (the T-shaped groove 14 is formed by a downward depression) is provided on the other prefabricated part 11. When the two prefabricated parts 11 need to be connected, it is only necessary to press the T-shaped protrusion 13 downward into the T-shaped groove 14 to realize the connection of the two prefabricated parts 11 as a whole. After the two prefabricated parts 11 are connected together, the end faces of the two prefabricated parts 11 fit together. Therefore, when the shear wall formwork 30 applies pressure inward to the two prefabricated parts 11, the force directions of the two prefabricated parts 11 are opposite, which can offset part of the force.

[0039] like Figure 4 As shown, the T-shaped protrusion 13 includes a horizontal portion 131 and a vertical portion 132 connected to each other, the horizontal portion 131 extends along a first horizontal direction, the vertical portion 132 extends along a second horizontal direction, and the horizontal portion 131 is connected to the middle position of the vertical portion 132, thereby forming a structure with a T-shaped top view (i.e., the T-shaped protrusion 13).

[0040] like Figure 4 As shown, the T-shaped slot 14 includes a first slot section 141 and a second slot section 142 that are connected. The first slot section 141 is opened along a first horizontal direction, and the right side of the first slot section 141 is connected to the end face of the preform 11; the second slot section 142 is opened along a second horizontal direction, and the first slot section 141 is connected to the middle position of the second slot section 142, forming a T-shaped slot structure (i.e., the T-shaped slot 14) when viewed from above.

[0041] Among them, Figure 4As shown, the transverse portion 131 is disposed within the first slot section 141, and the longitudinal portion 132 is disposed within the second slot section 142. In the second horizontal direction, a second predetermined gap H2 is provided between the inner sidewall of the first slot section 141 and the inner sidewall of the transverse portion 131. Similarly, a second predetermined gap H2 is provided between the inner sidewall of the second slot section 142 and the sidewall of the longitudinal portion 132. The second predetermined gap H2 can be 3 mm to 10 mm. The second predetermined gap H2 is designed to allow the T-shaped protrusions 13 and T-shaped slots 14 of the two preforms 11 to be interlocked even when there is a certain positional deviation in the second horizontal direction, thereby improving the flexibility of the structural fit.

[0042] like Figure 7 As shown, the lower end of the T-shaped protrusion 13 is provided with a chamfer 13a, which facilitates the T-shaped protrusion 13 to be pressed downward into the T-shaped groove 14. Specifically, the lower ends of the transverse portion 131 and the longitudinal portion 132 of the T-shaped protrusion 13 are both provided with a chamfer 13a.

[0043] One working mode of the internal support positioning device 10 of this embodiment is as follows:

[0044] (1) First, measure and lay out the lines, draw the control line C3 on the floor surface C2 (the control line C3 overlaps with the projection of the wall edge line C1 on the floor surface), and clean the slurry at the base of the wall;

[0045] (2) Install the internal support positioning device 10 before the shear wall formwork. In this embodiment, the internal support positioning device 10 is used to replace the existing positioning ribs 40. Multiple internal support positioning devices 10 are distributed on the floor surface at intervals of 700 mm along the second horizontal direction. When installing the two prefabricated parts 11 of the internal support positioning device 10, the U-shaped notch grooves 111 of the two prefabricated parts 11 are respectively sleeved on the wall column reinforcement 20 on the left and right sides, and then the T-shaped protrusions 13 and T-shaped grooves 14 of the two prefabricated parts 11 are aligned up and down and inserted together. Finally, the left end face of one prefabricated part 11 of the internal support positioning device 10 is adjusted to align with the left control line C3, and the right end face of the other prefabricated part 11 of the internal support positioning device 10 is aligned with the right control line C3; wherein, in the first horizontal direction, a first predetermined gap H1 is formed between the inner wall surface of the U-shaped notch groove 111 and the wall column reinforcement 20;

[0046] (3) Use fast-hardening mortar to fill the guide groove 111b. The mortar in the guide groove 111b flows into the first predetermined gap H1. After 2 hours, the mortar solidifies to form a connecting portion 12. The connecting portion 12 fixes the wall column reinforcement 20 and the prefabricated component 11 together, which can resist the horizontal thrust perpendicular to the wall edge direction.

[0047] (4) When performing the shear wall formwork operation and installing the reinforced shear wall formwork 30, pressure is applied inward from both sides of the wall by tensioning bolts (or pull plates) and diagonal braces outside the formwork to clamp the wall formwork on both sides. The two prefabricated parts 11 of the internal support positioning device 10 play a role in fixing the bottom position, ensuring that the bottom position of the shear wall formwork 30 is consistent with the wall edge line C1 and does not deviate.

[0048] The above description is only a specific embodiment of the present application. Those skilled in the art will clearly understand that for the convenience and brevity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the scope of protection of the present application.

Claims

1. An internal support positioning device for a shear wall formwork, characterized in that: It comprises two detachably connected prefabricated parts (11); The prefabricated component (11) has a preset length L1 in a first horizontal direction, and along the first horizontal direction, the end face of the prefabricated component (11) abuts against the inner side of the shear wall formwork (30); the two prefabricated components (11) are both provided with a U-shaped notch groove (111) at one end in the first horizontal direction, and the U-shaped notch groove (111) is sleeved on the external wall column steel bar (20); the inner wall surface of the U-shaped notch groove (111) has a first predetermined gap H1 between the wall column steel bar (20) in the first horizontal direction, and the first predetermined gap H1 is filled with a connecting portion (12), and the connecting portion (12) is used to fix the wall column steel bar (20) and the prefabricated component (11) together.

2. The internal support positioning device for shear wall formwork according to claim 1, characterized in that: The length of the U-shaped notch groove (111) in the first horizontal direction is configured as L2; the outer diameter of the wall column steel bar (20) is configured as D1, and L2 is 2 to 5 times of D1; the inner width of the U-shaped notch groove (111) in the second horizontal direction is configured as D2, and D2 is 1.05 to 1.5 times of D1.

3. The internal support positioning device for shear wall formwork according to claim 1, characterized in that: A trumpet guide opening (111a) is provided at the opening position of the U-shaped notch groove (111).

4. The internal support positioning device for shear wall formwork according to claim 1, characterized in that: The end surface of one preform (11) is provided with a T-shaped protrusion (13), and the other preform (11) is provided with a T-shaped groove (14). The T-shaped protrusion (13) is arranged in the T-shaped groove (14) to realize the detachable connection of the two preforms (11).

5. The internal support positioning device for shear wall formwork according to claim 4, characterized in that: The T-shaped protrusion (13) includes a connected transverse portion (131) and a longitudinal portion (132); the T-shaped slot (14) includes a first slot section (141) and a second slot section (142) that are connected, the transverse portion (131) being arranged in the first slot section (141), and the longitudinal portion (132) being arranged in the second slot section (142); in a second horizontal direction, a second predetermined gap H2 is provided between the side walls of the first slot section (141) and the transverse portion (131), and between the side walls of the second slot section (142) and the longitudinal portion (132).

6. The internal support positioning device for shear wall formwork according to claim 4, characterized in that: The lower end of the T-shaped protrusion (13) is provided with a chamfer (13a), and the chamfer (13a) facilitates the T-shaped protrusion (13) to be introduced into the T-shaped groove (14).

7. The internal support positioning device for shear wall formwork according to any one of claims 1 to 6, characterized in that: The material of the connecting portion (12) is mortar, epoxy resin or metal adhesive.

8. The internal support positioning device for shear wall formwork according to any one of claims 1 to 6, characterized in that: The preform (11) is provided with a guide groove (111b) communicating with the first predetermined gap H1.

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