Formwork for post-pouring area of steel reinforced concrete shear wall

Abstract

The utility model discloses a template for steel reinforced concrete shear wall post -poured area, including normal board, feed port, connecting plate, movable plate and spacing side plate, the feed port is equipped with a plurality on normal board, and it is the notch that opens on normal board, connecting plate is located the feed port, and it is connected with the notch lateral wall of normal board, movable plate is connected in the bottom of connecting plate through rotating structure, spacing side plate is located the both sides of connecting plate, and grouting channel is formed between movable plate, pours concrete to the upward opening, and concrete flows in the gap between two shear walls to fill it, and the pouring of post -poured area is completed, when pouring concrete, movable plate rotates and opens, and the post -poured area is set up to the upward inclination, so that concrete is not hindered in the gap, and directly falls in the bottom of post -poured area, and pours in turn upward, avoids the concrete filling shortage, and influences the structural strength of post -poured area.

Description

Technical Field

[0001] The embodiments of this utility model belong to the field of building casting technology, and more specifically, relate to a formwork for the post-cast area of ​​steel-concrete shear walls. Background Technology

[0002] Currently, steel-concrete composite structures are widely used in the market due to their excellent mechanical properties. However, as prefabricated components, their connection nodes and pouring have always been key and difficult points in construction. For the post-pouring zone of vertical connection of shear walls, the traditional method is to support the formwork and then use through-wall bolts for reinforcement in the middle. However, for steel-concrete composite shear walls, the interior consists of I-beams and steel plates, which hinders the flow of concrete in the formwork.

[0003] Based on the above issues, a precast formwork for external wall post-pouring strips has emerged on the market. It includes basement walls and precast slabs located on both sides of the post-pouring strip. The precast slabs are positioned on the outer side of the basement walls corresponding to the post-pouring strip area, and each slab has pre-embedded connecting rods protruding a certain length from its surface. During installation, these connecting rods are fixedly connected to the horizontal or vertical reinforcing bars in the post-pouring strip. A formwork is installed on the inner side of the basement walls corresponding to the post-pouring strip area, and this formwork is fixedly connected to the precast slab via water-stop bolts. A water-stop steel plate is installed inside the post-pouring strip, and an additional waterproof layer is provided between the post-pouring strip and the precast slab. This improves the forming quality of the post-pouring strip, increases construction efficiency, and provides good water-proofing.

[0004] However, because these precast formworks lack pre-reserved inlets, concrete entering the post-cast strip during grouting cannot flow smoothly due to the obstruction of the I-beams, resulting in incomplete filling of the post-cast strip and affecting the building's strength. Therefore, a new formwork for the post-cast zone of steel-concrete shear walls is needed to solve the problem of concrete flow obstruction at the steel-concrete joint area. This would allow for efficient and rapid completion of the post-cast zone of the steel-concrete shear wall project with less time and fewer personnel, saving significant time and costs. Utility Model Content

[0005] To address the aforementioned deficiencies or improvement needs of existing technologies, this utility model provides a formwork for the post-cast area of ​​a steel-concrete shear wall. Concrete is poured into the upward-opening section, flowing and filling the gap between the upper and lower shear walls. After the post-cast area is poured, a movable plate rotates and opens during concrete pouring, tilting upwards in the post-cast area to ensure unobstructed flow of concrete through the gap, allowing it to fall directly to the bottom of the post-cast area. Concrete is poured sequentially upwards to avoid insufficient filling and thus affecting the structural strength of the post-cast area.

[0006] To achieve the above objectives, this utility model provides a formwork for the post-cast area of ​​a steel-concrete shear wall, including a conventional plate, a feed inlet, a connecting plate, a movable plate, and a limiting side plate.

[0007] The feed inlet is provided on the conventional plate in multiple ways, which are notches opened in the conventional plate;

[0008] The connecting plate is located at the feed inlet and is connected to the notched sidewall of the conventional plate;

[0009] The movable plate is connected to the bottom of the connecting plate via a rotating structure;

[0010] The limiting side plate is located on both sides of the connecting plate, forming a grouting channel between it and the movable plate.

[0011] Furthermore, the limiting side plate is a triangular plate, with one vertical side connected to the conventional plate and a long hypotenuse at the bottom;

[0012] Each of the limiting side plates has a connection hole.

[0013] Furthermore, the movable plate is provided with a connecting seat, which has a through hole, the position of which corresponds to the position of the connecting hole.

[0014] Furthermore, the movable plate is fixed to the bottom long inclined edge of the limiting side plate by a fixing rod.

[0015] Furthermore, the fixing rod is disposed in the connecting hole on the limiting side plate and passes through the through hole in the connecting seat on the movable plate to fix the movable plate to the limiting side plate.

[0016] Furthermore, the movable plate is inclined and its bottom end is located at the top surface of the shear wall below, so as to form an upward opening at the feed inlet.

[0017] Furthermore, the connecting plate is a U-shaped plate, with its two sides and bottom surface fixedly connected to the conventional plate at the feed inlet to fix it at the feed inlet.

[0018] Furthermore, the connecting plate is provided with a sealing groove on both sides, and a sealing plate is provided in the sealing groove, which slides along the sealing groove.

[0019] Furthermore, the enclosed groove is located between the connecting plate and the limiting side plate.

[0020] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects:

[0021] 1. This utility model provides a formwork for the post-cast area of ​​a steel-concrete shear wall. Concrete is poured into the upward-opening section, and the concrete flows and fills the gap between the upper and lower shear walls. After the post-cast area is poured, the movable plate rotates and opens during concrete pouring. It is set upward in the post-cast area so that the concrete is not obstructed in the gap and falls directly to the bottom of the post-cast area. The concrete is poured upward in sequence to avoid insufficient filling and affecting the structural strength of the post-cast area.

[0022] 2. This utility model discloses a formwork for the post-cast zone of a steel-concrete shear wall. Through the tilting and rotating design of the movable plate, an upward opening is formed during pouring, allowing concrete to flow and fill from the bottom of the post-cast zone upwards, effectively avoiding problems such as aggregate segregation and air bubble retention caused by traditional lateral pouring. The stable grouting channel formed by the limiting side plate and the fixing rod further constrains the concrete flow direction, preventing lateral overflow.

[0023] 3. The present invention provides a formwork for the post-cast area of ​​steel-concrete shear walls. The multi-inlet segmented pouring strategy combined with the partitioned sealing of the sealing plate can accurately control the filling pressure of each segment, ensuring seamless integration between the post-cast area and the existing structure, and improving the overall shear strength.

[0024] 4. The present invention provides a formwork for the post-cast area of ​​a steel-concrete shear wall. After the casting is completed, a sealing plate is used to connect the grouting channel and the post-cast slab to achieve precise separation of the casting section. The fixing rod is removed so that the movable plate can rotate to discharge excess concrete in the grouting channel and maintain the structural consistency between the post-cast area concrete and the upper and lower shear walls. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a formwork for the post-cast zone of a steel-concrete shear wall according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram illustrating the installation of a formwork for the post-cast area of ​​a steel-concrete shear wall, according to an embodiment of this utility model.

[0027] Figure 3 This is a top view of the installation of a formwork for the post-cast area of ​​a steel-concrete shear wall, according to an embodiment of the present invention.

[0028] Figure 4 This is a side view of the installation of a formwork for the post-cast zone of a steel-concrete shear wall, according to an embodiment of this utility model.

[0029] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-conventional plate, 2-feed inlet, 3-connecting plate, 4-movable plate, 5-hinged plate, 6-limiting side plate, 7-fixed rod, 8-sealing groove, 9-sealing plate. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0031] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] like Figure 1-4As shown, this embodiment of the utility model provides a formwork for the post-cast zone of a steel-concrete shear wall, including a feed inlet 2 on a conventional slab 1. A connecting plate 3 is provided at the feed inlet 2, connecting it to the conventional slab 1. A movable plate 4, rotatably connected to the connecting plate 3, is provided on the connecting plate 3. The movable plate 4 is inclined, with its bottom end located at the top surface of the lower shear wall, forming an upward opening at the feed inlet 2. Concrete is poured into this upward opening, flowing and filling the gap between the upper and lower shear walls. After the post-cast zone is poured, the movable plate 4 rotates and opens, tilting upwards in the post-cast zone, allowing the concrete to flow unobstructed through the gap and fall directly to the bottom of the post-cast zone. This process is repeated upwards to prevent insufficient concrete filling, which could affect the structural strength of the post-cast zone.

[0035] The conventional slab 1 is installed along the connection between the upper and lower shear walls and is connected by a steel frame. Multiple feed ports 2 are set on the conventional slab 1 according to the length of the connection so that concrete can be poured into the gap of the connection from the multiple feed ports 2.

[0036] The bottom of the movable plate 4 is connected to the connecting plate 3 by a rotating structure, preferably a hinge 5.

[0037] The connecting plate 3 is a U-shaped plate, and its two sides and bottom surface are fixedly connected to the conventional plate 1 at the feed inlet 2 to fix it at the feed inlet 2.

[0038] The connecting plate 3 is further provided with limiting side plates 6 on both sides. Each limiting side plate 6 is a triangular plate with one vertical side connected to the conventional plate 1 and a long inclined side at its bottom. Each limiting side plate 6 has a connecting hole. The movable plate 4 is provided with a connecting seat, which has a through hole. The position of the through hole corresponds to the position of the connecting hole. After the movable plate 4 rotates to the bottom long inclined side of the limiting side plate 6, it is fixed by a fixing rod 7. The fixing rod 7 is located in the connecting hole on the limiting side plate 6 and passes through the through hole in the connecting seat on the movable plate 4, fixing the movable plate 4 to the limiting side plate 6, thus forming a grouting channel between the movable plate 4 and the limiting side plate 6, through which concrete is poured.

[0039] It is understandable that when the fixing rod 7 is not used for fixation, the movable plate 4 can rotate freely through the hinge 5; when the fixing rod 7 is used, the movable plate 4 is fixed to the limiting side plates 6 on both sides to form a complete grouting channel.

[0040] The connecting plate 3 is also provided with sealing grooves 8 on both sides, and a sealing plate 9 is provided in the sealing groove 8. The sealing plate 9 slides along the sealing groove 8 to achieve a detachable connection. The sealing plate 9 is used to seal the post-pouring area, thus separating the post-pouring area from the grouting channel.

[0041] It is understood that the closed groove 8 is located between the connecting plate 3 and the limiting side plate 6, and the connecting plate 3 and the limiting side plate 6 are directly integrally formed. The closed groove 8 is set in such a way that it protrudes outward at the connection between the connecting plate 3 and the limiting side plate 6 to form a groove on the inner side, thus forming the closed groove 8.

[0042] As a further preferred method, the template is used as follows:

[0043] S100. Based on the height of the post-cast area of ​​the steel-concrete shear wall, the shear wall connection template is prefabricated in the factory. During prefabrication, the number and location of the feed inlets 2 are determined according to the specifications of the shear wall.

[0044] S200. Pre-drill installation holes on the shear wall steel plate, and position and install the conventional plate 1 according to the holes on the shear wall steel plate.

[0045] S300 After assembling the connecting plate 3, movable plate 4, hinge 5 and limiting side plate 6, install the whole assembly at each feed inlet 2;

[0046] S400: Use the fixing rod 7 to fix the movable plate 4 to the limiting side plate 6, and pour concrete into the back pouring area through the grouting channel;

[0047] S500 After the concrete pouring is completed, insert the sealing plate 9, remove the fixing rod 7, and drain the excess concrete from the grouting channel.

[0048] S600, Remove the formwork after the concrete in the post-pouring area has hardened.

[0049] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A formwork for the post-cast zone of a steel-concrete shear wall, characterized in that: It includes a standard plate (1), a feed inlet (2), a connecting plate (3), a movable plate (4), and a limiting side plate (6); The feed inlet (2) is provided on the conventional plate (1) in multiple ways, which are notches opened on the conventional plate (1); The connecting plate (3) is located at the feed inlet (2) and is connected to the notch sidewall of the conventional plate (1); The movable plate (4) is connected to the bottom of the connecting plate (3) via a rotating structure; The limiting side plate (6) is located on both sides of the connecting plate (3) and forms a grouting channel with the movable plate (4); The connecting plate (3) is also provided with a closed groove (8) on both sides, and a closed plate (9) is provided in the closed groove (8), and the closed plate (9) slides along the closed groove (8); The closed groove (8) is located between the connecting plate (3) and the limiting side plate (6).

2. A formwork for the post-cast zone of a steel-concrete shear wall according to claim 1, characterized in that, The limiting side plate (6) is a triangular plate with one vertical side connected to the conventional plate (1) and a long hypotenuse at the bottom; Each of the limiting side plates (6) has a connection hole.

3. A formwork for the post-cast zone of a steel-concrete shear wall according to claim 2, characterized in that, The movable plate (4) is provided with a connecting seat, which has a through hole, and the position of the through hole corresponds to the position of the connecting hole.

4. A formwork for the post-cast zone of a steel-concrete shear wall according to claim 3, characterized in that, The movable plate (4) is fixed to the bottom long inclined side of the limiting side plate (6) by a fixing rod (7).

5. A formwork for the post-cast zone of a steel-concrete shear wall according to claim 4, characterized in that, The fixing rod (7) is located in the connecting hole on the limiting side plate (6) and passes through the through hole in the connecting seat on the movable plate (4) to fix the movable plate (4) to the limiting side plate (6).

6. A formwork for the post-cast zone of a steel-concrete shear wall according to claim 5, characterized in that, The movable plate (4) is inclined and its bottom end is located on the top surface of the shear wall below, so as to form an upward opening at the feed inlet (2).

7. A formwork for the post-cast zone of a steel-concrete shear wall according to any one of claims 1-6, characterized in that, The connecting plate (3) is a U-shaped plate, and its two sides and bottom are fixedly connected to the conventional plate (1) at the feed inlet (2) to fix it at the feed inlet (2).

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