Assembly type cup opening type prefabricated column mounting and positioning structure

Abstract

The utility model relates to the technical field of constructional engineering, and particularly discloses an assembly type cup opening type prefabricated column mounting and positioning structure which comprises a cup opening, a positioning part and a positioning part. The cross-shaped limiting steel bars are inserted into the cup opening side wall of the foundation in a cross-shaped up-down staggered mode, the ends of the cross-shaped limiting steel bars are fixedly connected with the cup opening side wall, and the cross-shaped limiting steel bars are used for limiting the circumferential position of the limiting frame; the limiting frame is a rectangular frame formed by welding angle steel and arranged at the bottom of the cup opening, the outer side wall of the limiting frame is fixedly connected with the cross-shaped limiting steel bar, the inner side size of the limiting frame is matched with the bottom size of the prefabricated column, and the limiting frame is used for horizontally limiting the bottom of the prefabricated column; the multi-point connecting steel bar is driven into the middle position of the side wall of the cup opening, is fixedly connected with the limiting frame and is used for enhancing the connecting strength of the limiting frame and the cup opening; through the synergistic effect of the limiting frame, the cross-shaped limiting steel bar, the steel wedge and other parts arranged in the cup opening, the problems that the prefabricated column is prone to shaking and positioning deviation during hoisting installation are solved.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, specifically relating to the installation and positioning structure of prefabricated cup-shaped columns. Background Technology

[0002] To shorten construction time, many building components are installed using prefabrication methods. Precast cup-shaped columns are prefabricated components manufactured in a factory, primarily used for vertical support structures in buildings. Their key feature is that the column body is fabricated in the factory and then transported to the construction site for installation. These precast columns consist of three main parts: a prefabricated unit, a bottom grouting unit, and a post-cast unit. The cup-shaped foundation design allows the steel column to be easily fixed even before the foundation is fully secured. This design simplifies the on-site installation process, reducing manpower and time consumption. Workers can achieve efficient steel column installation with simple assembly; the advantages of precast cup-shaped columns include efficient and accurate modeling and support for creating rectangular and irregularly shaped precast columns.

[0003] However, in the existing technology, there is a lack of a dedicated positioning structure at the bottom of the cup opening. As a result, when the precast column is hoisted into the cup opening by a crane, it is prone to shaking due to the large size and weight of the component. It is difficult to accurately align the cup opening axis, and problems such as positional deviation and verticality deviation often occur. Repeated manual adjustments and corrections are required, which not only prolongs the installation time of a single component, but may also damage the cup opening foundation or precast column due to multiple adjustments, affecting the quality of subsequent grouting construction and the overall structural stability. Utility Model Content

[0004] The purpose of this utility model is to provide an assembled cup-shaped precast column installation and positioning structure to solve the problems of easy shaking and positioning deviation during the hoisting and installation of precast columns, so as to achieve rapid and accurate positioning of precast columns and improve construction efficiency and installation stability.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The prefabricated cup-shaped column installation and positioning structure includes:

[0007] The cup-shaped opening is formed in the foundation to accommodate the precast column;

[0008] The cross-shaped limiting steel bars are inserted into the cup-shaped side wall of the foundation in a staggered manner, with their ends fixedly connected to the cup-shaped side wall, and are used to limit the circumferential position of the limiting frame.

[0009] The limiting frame is a rectangular frame formed by welding angle steel and is set at the bottom of the cup mouth. Its outer side wall is fixedly connected to the cross limiting steel bar, and its inner side dimension is adapted to the bottom dimension of the precast column. It is used to horizontally limit the bottom of the precast column.

[0010] Multiple connecting steel bars are driven into the middle position of the side wall of the cup opening and fixedly connected to the limiting frame to enhance the connection strength between the limiting frame and the cup opening.

[0011] Preferably, the device also includes multiple sets of steel wedges, each set of which consists of two wedges. The steel wedges are evenly distributed along the circumference of the precast column in the gap between the precast column and the side wall of the cup, and are used to correct the verticality of the precast column.

[0012] Preferably, the four angle steels of the limiting frame include two horizontal angle steels at the top and bottom and two vertical angle steels at the left and right. The two horizontal angle steels at the top and bottom are arranged in parallel at the bottom of the cup opening, and the two ends of the two vertical angle steels at the left and right overlap the upper surfaces of the two horizontal angle steels at the top and bottom and are fixedly connected to form a stepped superimposed structure.

[0013] Preferably, the cross-shaped limiting steel bar is fixed to the outer wall of the limiting frame, and the multi-point connecting steel bar is fixed to the limiting frame by welding.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By using surplus or discarded angle steel from the construction site, cut and welded according to the dimensions of the precast columns to form a limiting frame, material recycling and reuse are achieved. This eliminates the need to purchase custom-made steel, significantly reducing raw material costs and expenses, while also reducing construction waste, aligning with green construction principles. The horizontal angle steel of the limiting frame directly contacts the bottom of the cup-shaped opening to form a foundation support surface, effectively dispersing the vertical impact force when the precast column falls. The stepped lap structure of the vertical angle steel enhances the connection strength at the frame corners, improving resistance to horizontal lateral forces and reducing the risk of frame deformation. This significantly reduces the swaying amplitude during the fall of the precast column, providing a stable benchmark for steel wedge correction of verticality. Furthermore, this structure simplifies the installation process and shortens construction time through rapid welding and fixing of the cross-shaped limiting steel bars to the outer side of the horizontal angle steel, achieving significant optimization in cost control, environmental benefits, structural stability, and construction efficiency. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the present invention installed inside the cup opening;

[0017] Figure 2 This is a top perspective view of the cross-shaped limiting steel bar and limiting frame of this utility model;

[0018] Figure 3 This is a bottom perspective view of the limiting frame of this utility model;

[0019] Figure 4 This is a three-dimensional view of the cross-shaped limiting steel bar of this utility model;

[0020] In the diagram: 1. Cup opening; 2. Cross-shaped limiting reinforcement bar; 3. Limiting frame; 4. Multi-point connecting reinforcement bar; 5. Steel wedge. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," 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 do not 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] Example:

[0024] Please see Figures 1-4 As shown, the prefabricated cup-shaped column installation and positioning structure includes:

[0025] Cup 1, opened in the foundation, is used to accommodate precast columns;

[0026] The cross-shaped limiting steel bar 2 is inserted into the side wall of the cup opening 1 of the foundation in a cross shape with staggered vertical positions. Its end is fixedly connected to the side wall of the cup opening 1 to limit the circumferential position of the limiting frame 3.

[0027] The limiting frame 3 is a rectangular frame formed by welding angle steel and is set at the bottom of the cup mouth 1. Its outer side wall is fixedly connected to the cross limiting steel bar 2, and its inner side dimension is adapted to the bottom dimension of the precast column. It is used to horizontally limit the bottom of the precast column.

[0028] The multi-point connecting steel bars 4 are driven into the middle position of the side wall of the cup opening 1 and fixedly connected with the limiting frame 3 to enhance the connection strength between the limiting frame 3 and the cup opening 1.

[0029] Depend on Figure 1It is known that it also includes multiple sets of steel wedges 5, each set of steel wedges 5 consisting of two wedges. The steel wedges 5 are evenly distributed along the circumference of the precast column in the gap between the precast column and the side wall of the cup mouth 1, and are used to correct the verticality of the precast column.

[0030] As can be seen from the above, the cup opening 1 is pre-cut in the foundation to accommodate the precast column. The cross-shaped limiting steel bar 2 is inserted and fixed to the side wall of the cup opening 1 in a cross shape with staggered vertical placement. The limiting frame 3 is a rectangular frame welded from angle steel and placed at the bottom of the cup opening 1. Its outer side wall is fixedly connected to the cross-shaped limiting steel bar 2. The circumferential position of the limiting frame 3 is limited by the cross-shaped limiting steel bar 2, so that the limiting frame 3 is accurately positioned at the bottom of the cup opening 1. The inner dimension of the limiting frame 3 is adapted to the bottom dimension of the precast column, forming a horizontal limiting space to horizontally limit the bottom of the precast column inserted into the cup opening 1. The multi-point connecting steel bar 4 is driven into the middle position of the side wall of the cup opening 1 and fixedly connected to the limiting frame 3, further enhancing the connection strength between the limiting frame 3 and the cup opening 1, and ensuring that the limiting frame 3 stably supports the bottom of the precast column.

[0031] Multiple sets of steel wedges 5 are evenly distributed along the circumference of the precast column in the gap between the precast column and the side wall of the cup 1. Each set of steel wedges 5 consists of two wedges. After the precast column is hoisted and inserted into the cup 1 and its bottom contacts the limiting frame 3, multiple sets of steel wedges 5 are inserted from all sides of the precast column into the gap between the side wall of the cup 1 and the precast column. By tapping the two wedges of each set of steel wedges 5, the verticality of the precast column is adjusted by the inclined surface of the wedges, so that the precast column remains vertical in the cup 1, achieving precise correction of the verticality of the precast column and ensuring that the installation of the precast column meets the construction requirements.

[0032] Specifically, regarding the above, please refer to... Figure 2 and Figure 3 As shown, the four angle steels of the limiting frame 3 include two horizontal angle steels at the top and bottom and two vertical angle steels at the left and right. The two horizontal angle steels at the top and bottom are arranged in parallel at the bottom of the cup mouth 1. The two ends of the two vertical angle steels at the left and right overlap the upper surfaces of the two horizontal angle steels at the top and bottom and are fixedly connected to form a stepped superimposed structure.

[0033] As can be seen from the above, the angle steel of the limit frame 3 is made by cutting and welding the excess or waste angle steel on the construction site according to the size of the precast column. The cost of raw materials is significantly reduced by recycling and reuse of materials. There is no need to purchase customized steel, which not only reduces construction waste emissions and meets the green construction standards, but also allows for flexible adaptation to the bottom size of different specifications of precast columns through on-site cutting.

[0034] The horizontal angle steel directly contacts the bottom of the cup 1 to form a basic support surface, expanding the stress area and effectively dispersing the vertical impact force when the precast column falls, avoiding local stress concentration that could cause the cup 1 concrete to crack. The stepped lap joint of the vertical angle steel forms a strong welded node, enhancing the connection strength of the frame corners, effectively resisting horizontal lateral forces, reducing frame torsional deformation, and the structural characteristics of the rigid frame significantly reduce the swaying amplitude during the fall of the precast column, providing a stable benchmark for the subsequent verticality correction by the steel wedge 5.

[0035] Specifically, regarding the above, please refer to... Figure 2 As shown, the cross-shaped limiting steel bar 2 and the outer wall of the limiting frame 3, as well as the multi-point connecting steel bar 4 and the limiting frame 3, are all fixed by welding.

[0036] As can be seen from the above, the cross-shaped limiting steel bars 2 are inserted and fixed to the side wall of the cup opening 1 in a cross shape with staggered vertical placement. Their ends are then firmly connected to the outer side wall of the limiting frame 3 by welding. The cross-shaped support structure formed by the cross-shaped limiting steel bars 2 on the side wall of the cup opening 1 precisely limits the circumferential position of the limiting frame 3, ensuring that the limiting frame 3 is stably positioned at the bottom of the cup opening 1. This prevents the limiting frame 3 from circumferentially displacing during the installation of the precast column, providing a reliable reference support for the horizontal limiting of the bottom of the precast column. The multi-point connecting steel bars 4 are driven into the cup opening 1. After the middle position of the side wall, it is fixedly connected to the side wall of the limiting frame 3 by welding, forming multiple evenly distributed connection points, tightly connecting the limiting frame 3 and the side wall of the cup mouth 1 into one unit. This multi-point welding fixing method can effectively disperse the horizontal and vertical forces on the limiting frame 3, enhance the connection strength and overall stability between the limiting frame 3 and the cup mouth 1, and ensure that the limiting frame 3 will not loosen or shift due to poor connection when bearing the weight of the precast column and the installation impact force, thereby ensuring the reliability of the precast column positioning structure.

[0037] Application example:

[0038] In a prefabricated building construction project, cup-shaped precast columns need to be installed. During construction, a suitable cup opening 1 is first opened in the foundation to ensure that the depth of the cup opening and the flatness of the inner wall meet the design requirements. Then, cross-shaped limiting steel bars 2 are inserted into the side wall of the cup opening 1 in a cross shape with staggered vertical spacing. The ends of the steel bars are fixed to the side wall of the cup opening 1 to form a circumferential positioning reference. At the same time, multi-point connecting steel bars 4 are driven into the middle position of the side wall of the cup opening 1, and the exposed ends of the steel bars are reserved for welding length.

[0039] The pre-processed rectangular limiting frame 3 is placed at the bottom of the cup mouth 1, so that the outer wall of the limiting frame 3 is aligned with the cross limiting steel bar 2 and welded and fixed. Finally, the cross limiting steel bar 2, the multi-point connecting steel bar 4 and the limiting frame 3 are welded again to ensure the stability of the positioning structure, complete the accurate positioning and fixing of the precast column, and provide a reliable foundation for subsequent construction.

[0040] When the precast column is hoisted above the cup opening 1, it is slowly lowered so that its bottom is aligned with the inside of the limiting frame 3. After the bottom of the precast column contacts the limiting frame 3, multiple sets of steel wedges 5 (two wedges in each set) are evenly inserted circumferentially in the gap between the precast column and the side wall of the cup opening 1. The verticality of the precast column is adjusted by tapping the steel wedges until it meets the construction standards.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fabricated cup head precast column installation positioning structure, characterized in that, include: The cup opening (1) is located in the foundation and is used to accommodate the precast column; The cross-shaped limiting steel bar (2) is inserted into the side wall of the cup mouth (1) of the foundation in a cross shape with staggered vertical placement. Its end is fixedly connected to the side wall of the cup mouth (1) to limit the circumferential position of the limiting frame (3). The limiting frame (3) is a rectangular frame formed by welding angle steel and is set at the bottom of the cup mouth (1). Its outer side wall is fixedly connected to the cross limiting steel bar (2), and its inner side dimension is adapted to the bottom dimension of the precast column. It is used to horizontally limit the bottom of the precast column. The multi-point connecting steel bar (4) is driven into the middle position of the side wall of the cup mouth (1) and fixedly connected with the limiting frame (3) to enhance the connection strength between the limiting frame (3) and the cup mouth (1).

2. The fabricated cuphead precast column installation positioning structure according to claim 1, characterized in that: It also includes multiple sets of steel wedges (5), each set of steel wedges (5) consists of two wedges, and the steel wedges (5) are evenly distributed along the circumference of the precast column in the gap between the precast column and the side wall of the cup mouth (1) to correct the verticality of the precast column.

3. The fabricated cuphead precast column installation positioning structure according to claim 1, characterized in that: The four angle steels of the limiting frame (3) include two horizontal angle steels at the top and bottom and two vertical angle steels at the left and right. The two horizontal angle steels at the top and bottom are arranged in parallel at the bottom of the cup mouth (1). The two ends of the two vertical angle steels at the left and right overlap the upper surfaces of the two horizontal angle steels at the top and bottom respectively and are fixedly connected to form a stepped superimposed structure.

4. The fabricated cuphead precast column installation positioning structure according to claim 1, characterized in that: The cross-shaped limiting steel bar (2) and the outer wall of the limiting frame (3), and the multi-point connecting steel bar (4) and the limiting frame (3) are all fixed by welding.

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