Formwork for post-cast strip and wiring port at bottom of fabricated shear wall system

Abstract

The utility model discloses a formwork for a post-cast strip and a wiring port at the bottom of an assembly type shear wall system. The formwork comprises a first formwork assembly and a second formwork assembly which are used in cooperation. The first formwork assembly and the second formwork assembly each comprise a first plate body and a second plate body, the second plate body is connected to the upper portion of the first plate body, and the upper edge of the second plate body is higher than the top of the prefabricated shear wall reserved wiring port. A second plate body of the second template assembly is provided with a feeding port corresponding to the reserved wiring port in position, a material guide plate is arranged around the feeding port, and the material guide plate comprises a material guide slope which is obliquely arranged; and the opposite-pull screw rod penetrates through the screw rod holes of the template assemblies to pull the first template assembly and the second template assembly. The bottom post-cast strip of the fabricated shear wall system and the wiring port formwork are used for constructing the bottom horizontal joint and the reserved wiring port of the EMC fabricated shear wall system, the defects of a traditional wood formwork can be overcome, the construction quality can be remarkably improved, the construction period can be shortened, and the engineering cost can be reduced.

Description

Technical Field

[0001] This utility model belongs to the field of concrete pouring formwork technology, and in particular relates to a formwork for the bottom post-pouring strip and connection port of a prefabricated shear wall system. Background Technology

[0002] EMC (Engineering Modular Construction) prefabricated shear wall systems, as a new type of building structure, are widely used in high-rise buildings and large public buildings. The core advantage of this system lies in its efficient and rapid construction characteristics, which can significantly shorten the construction cycle and improve construction quality. Through the factory production and on-site assembly of prefabricated wall components, the prefabricated shear wall system achieves modular construction of the building structure, reducing the large amount of on-site pouring and work in traditional construction and improving construction efficiency. In the EMC prefabricated shear wall system, the connection and joint treatment of the walls are key factors in ensuring structural stability and construction quality. Ensuring the tightness of the joints, the accuracy of the reserved connection points, and the overall stability of the construction quality, especially during concrete pouring, at the horizontal joints and reserved connection areas at the bottom of the shear wall system, has always been a technical challenge in engineering construction.

[0003] In existing EMC prefabricated shear wall system construction, the common practice is to use wooden formwork combined with tie rods for support and reinforcement before pouring concrete. This method has several drawbacks: Poor rigidity of wooden formwork: Traditional wooden formwork has high elasticity but insufficient rigidity, making it prone to deformation during pouring, leading to loose joints and affecting the quality of the concrete. This is especially problematic in larger pre-reserved connection points and horizontal joint areas, where wooden formwork struggles to provide sufficient support. Cumbersome reinforcement and inconvenient construction: Due to the inherent poor rigidity of wooden formwork, extensive reinforcement of tie rods and support frames is usually required, increasing both the complexity of construction and the labor intensity for workers.

[0004] Therefore, the application of traditional wooden formwork has, to some extent, limited the improvement of construction quality and efficiency of prefabricated shear wall systems. Utility Model Content

[0005] The purpose of this utility model is to provide a template for the bottom post-pouring strip and connection port of a prefabricated shear wall system.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A template for the bottom post-pouring strip and connection port of a prefabricated shear wall system, comprising: a first template assembly and a second template assembly used in conjunction with each other; both the first template assembly and the second template assembly include a first plate, the height of which is greater than the height of the horizontal joint between the prefabricated shear wall and the building foundation; a second plate, which is connected above the first plate, the upper edge of which is higher than the top of the reserved connection port of the prefabricated shear wall; the second plate of the second template assembly is provided with a feed port corresponding to the position of the reserved connection port, and a guide plate is provided around the feed port, the guide plate including an inclined guide slope; the first template assembly and the second template assembly are provided with screw holes for tie rods to pass through, and the tie rods pass through the screw holes to connect the first template assembly and the second template assembly.

[0007] The prefabricated shear wall system bottom post-pouring strip and connection port template described above further includes threaded holes spaced apart on the first plate and threaded holes spaced apart on the second plate.

[0008] The prefabricated shear wall system bottom post-pouring strip and connection port template described above further includes a bottom plate and a side plate in the first template assembly and the second template assembly. The bottom plate is vertically connected to the bottom of the first plate body, and the side plate is connected to the side of the first plate body and the bottom plate.

[0009] The prefabricated shear wall system bottom post-pouring strip and connection port template described above further includes a first template assembly and a second template assembly, wherein the reinforcing member is connected between the first plate and the bottom plate.

[0010] The prefabricated shear wall system bottom post-pouring strip and connection port template described above further includes a second template assembly that also includes a concrete shaping plate, which is disposed at the feed inlet of the second plate.

[0011] The prefabricated shear wall system bottom post-pouring strip and connection port template described above further includes a concrete shaping plate in the second template assembly, which is hinged to the feed inlet of the second plate.

[0012] The prefabricated shear wall system bottom post-pouring strip and connection port template described above further includes a sealing ring in the first template assembly and the second template assembly, wherein the sealing ring is disposed in the screw hole.

[0013] The prefabricated shear wall system bottom post-pouring strip and connection port template described above further includes a sealing ring comprising a first sealing half-ring and a second sealing half-ring, wherein the first sealing half-ring and the second sealing half-ring are joined together to form a sealing ring.

[0014] Using the bottom post-pouring strip and connection formwork of the prefabricated shear wall system to construct the bottom horizontal joint and reserved connection of the EMC prefabricated shear wall system can not only solve the defects of traditional wooden formwork, but also significantly improve construction quality, shorten the construction period and reduce project costs. Attached Figure Description

[0015] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention.

[0016] Figure 1 A three-dimensional schematic diagram of the bottom post-cast strip and manhole box of a prefabricated shear wall system;

[0017] Figure 2 A front view of the bottom post-cast strip and manhole box of the prefabricated shear wall system;

[0018] Figure 3 This is a schematic diagram of the front of the formwork for the bottom post-cast strip and connection port of a prefabricated shear wall system.

[0019] Figure 4 This is a schematic diagram showing the back of the formwork for the bottom post-cast strip and connection point of a prefabricated shear wall system.

[0020] Figure 5 A schematic diagram showing the application of formwork for the bottom post-cast strip and connection joints in a prefabricated shear wall system;

[0021] Figure 6 A schematic diagram showing the location of the transfer shaft at the feed inlet;

[0022] Figure 7 A schematic diagram showing the installation of the concrete slab to the junction axis.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 10. Building foundation; 20. Prefabricated shear wall; 21. Reserved wiring port; 22. Horizontal joint; 30. First formwork assembly; 40. Second formwork assembly; 41. First slab; 42. Second slab; 43. Side plate; 44. Bottom plate; 45. Reinforcing member; 46. Guide plate; 461. Hinge shaft; 462. Concrete molding plate; 47. Feed port; 48. Screw hole. Detailed Implementation

[0025] In the following description, embodiments of the bottom post-pouring strip and connection port template of the prefabricated shear wall system of this utility model will be described with reference to the accompanying drawings.

[0026] The embodiments described herein are specific implementations of this utility model, used to illustrate the concept of this utility model. They are all illustrative and exemplary, and should not be construed as limiting the implementation methods or scope of this utility model. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0027] The accompanying drawings in this specification are schematic diagrams used to illustrate the concept of this utility model, and schematically show the shapes of the various parts and their interrelationships. Please note that, in order to clearly show the structure of the components of the embodiments of this utility model, the drawings are not drawn to the same scale. The same reference numerals are used to indicate the same parts.

[0028] Appendix Figure 1 and 2 The prefabricated shear wall 20 is shown above the building foundation 10. Figure 2 The diagram shows a horizontal joint 22 between the prefabricated shear wall 20 and the building base 10. The height of the horizontal joint 22 is typically between 5 and 10 centimeters; for example, in one embodiment, the height of the horizontal joint is 7 centimeters. A pre-reserved wiring port 21 is provided at the bottom of the prefabricated shear wall 20. The number and specific location of the pre-reserved wiring ports 21 can be pre-designed according to construction needs and are reserved during the preparation of the prefabricated shear wall.

[0029] Combination Figure 3 and Figure 4 This invention describes an embodiment of a prefabricated shear wall system with a bottom post-pouring strip and connection port template, which includes: a first template assembly 30 and a second template assembly 40 used in conjunction with each other;

[0030] Both the first template assembly 30 and the second template assembly 40 include a first plate 41, the height of which is greater than the height of the horizontal joint 22 between the prefabricated shear wall 20 and the building base 10. To avoid leakage at the edge of the template during concrete pouring, the template usually needs to cover and extend beyond the concrete pouring area. Preferably, the height of the first plate 41 is at least 2 cm greater than the upper edge of the horizontal joint 22. A second plate 42 is connected above the first plate 41. The first and second plates are preferably aluminum plates or aluminum alloy plates with a thickness of 2 mm or more. The upper edge of the second plate 42 is higher than the top of the reserved wiring port 21 of the prefabricated shear wall 20. The reserved connection port 21 of the shear wall 20 is not located at the edge, so the width of the second plate is smaller than the width of the first plate. This structure can reduce the material and production costs during the preparation of the template assembly. The second plate 42 of the second template assembly 40 is provided with a feed inlet 47 corresponding to the position of the reserved connection port 21. A guide plate 46 is provided around the feed inlet 47, and the guide plate 46 includes an inclined guide slope. Since the present invention has a first plate and a second plate that are connected to each other, if the feed inlet is located on the first plate, the concrete cannot be filled to the reserved connection port 21 above the position of the feed inlet during concrete pouring, and the construction purpose cannot be achieved. At the same time, since the size of the reserved connection port is usually small, such as 250mm wide * 350mm high in one specific embodiment, it is not convenient to insert the concrete pipe into the reserved connection port for concrete pumping. Therefore, this utility model designs a guide plate 46 for guiding materials. During concrete pouring, the concrete pipe is placed above the guide slope, and the concrete is smoothly fed into the inlet through the guide plate. The first template assembly 30 and the second template assembly 40 are provided with screw holes 48 for tie rods to pass through. The tie rods pass through the screw holes 48 to connect the first template assembly 30 and the second template assembly 40.

[0031] When using the prefabricated shear wall system bottom post-pouring strip and connection port formwork of the above embodiments of this utility model, such as Figure 5As shown, the first and second template components are first placed on both sides of the prefabricated shear wall, aligning the inlet position with the reserved connection point position. Then, tie rods are used to connect the first and second template components through the tie rod holes. During concrete pouring, the concrete pipe is placed above the guide slope, and the concrete is smoothly fed through the inlet via the guide plate. This utility model template has the following significant advantages: High rigidity and good stability: The first and second template components are made of aluminum or aluminum alloy, whose rigidity and strength are far superior to wood, effectively preventing deformation and damage, and ensuring the construction quality of concrete in the horizontal joints and reserved connection point areas. Convenient assembly and disassembly: The integrated design of the first and second panels eliminates the need for separate templates for horizontal joints and reserved connection points, facilitating rapid assembly and disassembly, greatly improving construction efficiency, and reducing labor costs by eliminating the need for excessive reinforcement supports. Therefore, using aluminum formwork to construct the bottom horizontal joints and reserved wiring ports of the EMC prefabricated shear wall system can not only solve the defects of traditional wooden formwork, but also significantly improve construction quality, shorten the construction period, and reduce project costs.

[0032] Combination Figure 3 and 4 As shown, in a preferred embodiment of the bottom post-cast strip and connection port template of the prefabricated shear wall system, screw holes 48 are spaced apart on the first plate 41 and on the second plate 42. Through the evenly distributed screw holes, when the first template assembly and the second template assembly are connected using tie rods and back braces, the plates of the first template assembly and the second template assembly can be evenly stressed, avoiding localized deformation.

[0033] Combination Figure 3 and 4As shown, in a preferred embodiment of the bottom post-pouring strip and connection port template of the prefabricated shear wall system, the first template assembly 30 and the second template assembly 40 further include a base plate 44 and a side plate 43. The base plate 44 is vertically connected to the bottom of the first plate 41, and the side plate 43 is connected to the sides of the first plate 41 and the base plate 44. Since the first plate is a plate-shaped structure, it cannot be balanced when placed on the building foundation. When assembling the template assembly, two construction workers are required on both sides of the shear wall to work together simultaneously. In this preferred embodiment, the base plate 44 allows the first template assembly 30 and the second template assembly 40 to stand upright above the building foundation 10, enabling one-person construction. That is, the first template assembly 30 is first placed on one side of the prefabricated shear wall, and then the second template assembly 40 is installed on the other side of the prefabricated shear wall. This utility model can also be further improved to facilitate single-person construction by providing a clamping member on the outside of the bolt holes of the first plate. The structure of the clamping member corresponds to the nut of the tie bolt, allowing the nut to be inserted into the clamping member. In one embodiment, the nut is a regular hexagonal nut, and the clamping member is provided with a groove that matches the structure of the nut. When tightening the tie rod, the construction worker only needs to perform the tightening operation on the outside of either the first template assembly or the second template assembly, and the nut on the other side will not rotate as it is tightened.

[0034] Combination Figure 3 and 4 As shown, in a preferred embodiment of the bottom post-cast strip and connection joint template of a prefabricated shear wall system, the first template assembly 30 and the second template assembly 40 further include a reinforcing member 45, which is connected between the first plate 41 and the base plate 44. The reinforcing member can be a reinforcing rod, with one end connected to the first plate and the other end connected to the base plate. Alternatively, the reinforcing member can be a right-angled triangular reinforcing steel plate welded between the first plate and the base plate.

[0035] At the inlet of the second plate, during concrete pouring, the concrete solidifies above the guide plate, forming a redundant section protruding from the connection point. This redundant section needs to be removed separately later to ensure a smooth surface for the entire prefabricated shear wall. Further improvements are made to the bottom post-pouring strip and connection point template of the prefabricated shear wall system. The second template assembly 40 also includes a concrete shaping plate 462. The concrete shaping plate 462 is positioned at the inlet 47 of the second plate 42, inserted into the inlet of the second plate. This allows excess concrete to be separated on the outside of the concrete shaping plate after the concrete pipe has finished pumping, thus avoiding later chipping. Because the pumped concrete fills the inlet, installing the concrete shaping plate is challenging and requires experienced operators. In another embodiment, such as... Figure 6 and Figure 7As shown, the concrete shaping plate 462 is hinged to the inlet 47 of the second plate 42. Specifically, a hinge shaft 461 is positioned at the lower part of the inlet 47 of the second plate 42, and the lower edge of the concrete shaping plate 462 is mounted via the hinge shaft 461. With this improvement, before pumping concrete, the concrete shaping plate is in a retracted state, in which it adheres to the guide plate 46 without affecting the pumping of concrete. After the concrete pumping is completed, the concrete shaping plate is rotated to seal the inlet and separate excess concrete. This structure simplifies the installation of the concrete shaping plate, requiring only its rotation and eliminating the need to align it with the inlet.

[0036] In a preferred embodiment of the bottom post-cast strip and connection joint template of the prefabricated shear wall system, the first template assembly 30 and the second template assembly 40 further include a sealing ring, which is disposed within the screw hole 48. To facilitate easy and convenient disassembly of the sealing ring after the completion of this construction, the sealing ring comprises a first sealing half-ring and a second sealing half-ring, which are joined together to form the sealing ring.

[0037] The technical features disclosed above are not limited to the combinations of the disclosed features with other features. Those skilled in the art can also make other combinations of the technical features according to the purpose of the utility model in order to achieve the purpose of the utility model.

Claims

1. A formwork for the bottom post-cast strip and connection port of a prefabricated shear wall system, characterized in that, include: The first template assembly (30) and the second template assembly (40) are used in conjunction with each other; both the first template assembly (30) and the second template assembly (40) include a first plate (41), the height of which is greater than the height of the horizontal joint (22) between the prefabricated shear wall (20) and the building base (10); and a second plate (42), which is connected above the first plate (41), and the upper edge of the second plate (42) is higher than the reserved joint of the prefabricated shear wall (20). The top of the wire opening (21); the second plate (42) of the second template assembly (40) is provided with a feed inlet (47) corresponding to the position of the reserved wire opening (21), and a guide plate (46) is provided around the feed inlet (47), the guide plate (46) including an inclined guide slope; the first template assembly (30) and the second template assembly (40) are provided with screw holes (48) for the pull screw to pass through, and the pull screw passes through the screw hole (48) to connect the first template assembly (30) and the second template assembly (40).

2. The formwork for the bottom post-cast strip and connection port of the prefabricated shear wall system according to claim 1, characterized in that, The first plate (41) is provided with screw holes (48) spaced apart, and the second plate (42) is provided with screw holes (48) spaced apart.

3. The formwork for the bottom post-cast strip and connection port of the prefabricated shear wall system according to claim 1, characterized in that, The first template assembly (30) and the second template assembly (40) further include a base plate (44) and a side plate (43). The base plate (44) is vertically connected to the bottom of the first plate body (41), and the side plate (43) is connected to the side of the first plate body (41) and the base plate (44).

4. The formwork for the bottom post-cast strip and connection port of the prefabricated shear wall system according to claim 3, characterized in that, The first template assembly (30) and the second template assembly (40) further include a reinforcing member (45) connected between the first plate (41) and the base plate (44).

5. The formwork for the bottom post-cast strip and connection port of the prefabricated shear wall system according to claim 1, characterized in that, The second template assembly (40) also includes a concrete shaping plate, which is disposed at the feed inlet (47) of the second plate body (42).

6. The formwork for the bottom post-cast strip and connection port of the prefabricated shear wall system according to claim 1, characterized in that, The second template assembly (40) also includes a concrete shaping plate, which is hinged to the feed inlet (47) of the second plate body (42).

7. The formwork for the bottom post-cast strip and connection port of the prefabricated shear wall system according to claim 1, characterized in that, The first template assembly (30) and the second template assembly (40) also include a sealing ring disposed inside the screw hole (48).

8. The formwork for the bottom post-cast strip and connection port of the prefabricated shear wall system according to claim 7, characterized in that, The sealing ring includes a first sealing half-ring and a second sealing half-ring, which together form the sealing ring.

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