Box-type steel structure building foundation connecting joint

Abstract

The utility model discloses a box-type steel structure building foundation connecting node in the field of steel structure buildings, which comprises a box-type module, connecting boxes are arranged at corners of the box-type module, positioning holes and connecting holes are arranged on outer end faces of the connecting boxes, foundation connecting plates and long screws are arranged between the connecting boxes of the box-type module and a concrete ground foundation, and the long screws are connected with the box-type module. Positioning cones are arranged on the upper surface of the foundation connecting plate corresponding to the positioning holes, fixing cones are arranged on the lower surface of the foundation connecting plate, through holes are formed in the foundation connecting plate corresponding to the connecting holes, the lower ends of the long screws are pre-buried in the concrete ground foundation, and the upper ends of the long screws penetrate through the through holes and the connecting holes to be connected with the connecting box; the interval D1 between the top face of the concrete ground foundation and the bottom face of the foundation connecting plate is not smaller than 50 mm, and a grouting layer is arranged between the concrete ground foundation and the foundation connecting plate. The box type steel structure building foundation connecting joint has the advantages of being stable in connection, convenient and fast to construct and the like.

Description

Technical Field

[0001] This utility model relates to the field of steel structure buildings, and in particular to a foundation connection node for a box-type steel structure building. Background Technology

[0002] Modular steel structure buildings refer to the integrated design of a building's structural, maintenance, interior, and equipment piping systems. Spatially, the building is divided into several hexahedral box-shaped modular units. Then, various professional trades work alternately in the factory to achieve full prefabrication of the modular units. Finally, the modular units are transported to the site and assembled using bolts, building the house like assembling building blocks. Modular construction, as a highly integrated prefabricated building method, represents an advanced stage of the construction industry, possessing technological advantages such as high assembly rates, high material utilization rates, high construction efficiency, and environmental friendliness. It is an effective means to achieve modularization, standardization, industrialization, and integration in the construction industry.

[0003] In existing technologies, the box-type modular units are manufactured as a whole in the factory, the ground foundation is poured with concrete on site, and the box-type modules are transported to the site, hoisted into place, and connected and fixed to the concrete ground foundation. The common practice for connecting the box-type modules to the ground foundation is to weld the connecting boxes at the corners of the modules to the foundation embedded plates, which makes it difficult to disassemble later and affects the reuse of the steel structure modules.

[0004] To address this issue, patent CN202123158945.0 discloses a height-adjustable steel structure modular building foundation connection node, enabling a detachable connection between the box-type module and the ground foundation. However, in this solution, the lower ends of the positioning clips are all pre-embedded in the ground foundation. Furthermore, to ensure a smooth connection, the verticality of the pre-embedded positioning clips is crucial. To improve positioning effectiveness, the positioning clips often employ a cross-shaped cross-section, and the corresponding locking holes on the connection box match the shape of the positioning clips. If the positioning clips rotate horizontally during pre-embedding, they cannot be smoothly inserted into the connection box for positioning. Therefore, the pre-embedding process for the positioning clips requires extreme precision and is time-consuming and labor-intensive. Utility Model Content

[0005] The purpose of this utility model is to provide a connection node for the foundation of a box-type steel structure building to solve the problems existing in the prior art.

[0006] The purpose of this utility model is achieved as follows: A box-type steel structure building foundation connection node includes a box-type module. Each box-type module consists of a hexahedral frame composed of steel columns, a top beam, and a bottom beam. Connection boxes are provided at the four top and four bottom corners of the box-type module. Positioning holes and connection holes are provided on the outer end faces of the connection boxes. A foundation connection plate and a long threaded rod are provided between the connection boxes of the box-type module and the concrete foundation. A positioning cone is provided on the upper surface of the foundation connection plate corresponding to the positioning hole, and a fixing cone is provided on the lower surface. A through hole is provided on the foundation connection plate corresponding to the connection hole. The lower end of the long threaded rod is pre-embedded in the concrete foundation, and the upper end passes through the through hole and the connection hole, connecting to the connection box. A groove is provided on the concrete foundation corresponding to the insertion position of the fixing cone. The distance D1 between the top surface of the concrete foundation and the bottom surface of the foundation connection plate is not less than 50mm. A grouting layer is provided between the concrete foundation and the foundation connection plate. This utility model's box-type steel structure building foundation connection node has advantages such as stable connection and convenient construction.

[0007] As a further improvement of this utility model, the long screw is provided with a positioning nut and a locking nut. The positioning nut is located on the lower side of the foundation connecting plate, and the locking nut is located on the upper side of the outer end face of the connecting box. The positioning nut is used to adjust the levelness and installation height of the foundation connecting plate to ensure the thickness of the grouting layer, thereby ensuring the reliability of the connection. The locking nut is used to realize the detachable connection between the connecting box and the concrete ground foundation.

[0008] As a further improvement of this utility model, the groove depth D2 is not less than 3 times D1, which further improves the connection reliability of the base connection plate.

[0009] As a further improvement of this utility model, the thickness of the base connecting plate is not less than 20mm to ensure the reliability of the connection.

[0010] As a further improvement of this utility model, both the positioning cone and the fixed cone have cross-shaped cross sections, which improves the reliability of the connection.

[0011] As a further improvement of this utility model, each connecting box has two connecting holes, which further improves the reliability of the connection.

[0012] As a further improvement of this utility model, the box-type module includes two side by side, with two positioning cones correspondingly arranged on the upper surface of the foundation connecting plate, and the fixing cone of the foundation connecting plate is arranged in the middle of the lower surface of the foundation connecting plate, so that the positioning connection of two adjacent box-type modules can be realized by using one foundation connecting plate, simplifying construction and improving efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the connection node of the foundation of the box-type steel structure building according to this utility model.

[0014] The components include: 1. Box-type module; 2. Connecting box; 3. Concrete ground foundation; 4. Foundation connecting plate; 5. Long screw; 6. Positioning cone; 7. Fixing cone; 8. Grouting layer; 9. Positioning nut; 10. Locking nut. Detailed Implementation

[0015] like Figure 1 The shown box-type steel structure building foundation connection node includes two box-type modules 1 arranged side by side. Each box-type module 1 consists of a regular hexahedral frame formed by four steel columns, four top beams connecting the upper ends of the steel columns, and four bottom beams connecting the lower ends of the steel columns. The frame contains a top plate, wall panels, and a bottom plate, as needed. To facilitate the hoisting and connection of the box-type modules 1, connection boxes 2 are provided at the four top and four bottom corners of each module 1. The specific structure of the connection boxes 2 is prior art and will not be described in detail here. Positioning holes and connection holes are provided on the outer end face of each connection box 2. In this embodiment, each connection box 2 has two connection holes to improve connection reliability.

[0016] A foundation connecting plate 4 and a long screw 5 are provided between the connecting box 2 of the box-type module 1 and the concrete ground foundation 3. The thickness of the foundation connecting plate 4 is not less than 20mm. A positioning cone 6 is provided on the upper surface of the foundation connecting plate 4 corresponding to the positioning hole position, and a fixing cone 7 is provided on the lower surface. The positioning cone 6 and the fixing cone 7 are welded and fixed to the foundation connecting plate 4 to form an integrated structure. The cross-section of the positioning cone and the fixing cone 7 are both cross-shaped to improve the connection reliability. The foundation connecting plate 4 has a through hole corresponding to the connection hole position. The lower end of the long screw 5 is pre-embedded in the concrete ground foundation 3, and the upper end passes through the through hole and the connection hole to connect with the outer end face of the connecting box 2. The concrete ground foundation 3 has a groove corresponding to the insertion position of the fixing cone 7. The distance D1 between the top surface of the concrete ground foundation 3 and the ground of the foundation connecting plate 4 is not less than 50mm. A grouting layer 8 is provided between the concrete ground foundation 3 and the foundation connecting plate 4. The depth D2 of the groove is not less than 3 times D1, further improving the connection reliability of the foundation connecting plate 4.

[0017] The long screw 5 is equipped with a positioning nut 9 and a locking nut 10. The positioning nut 9 is located on the lower side of the foundation connecting plate 4, and the locking nut 10 is located on the upper side of the outer end face of the connecting box 2. The positioning nut 9 is used to adjust the levelness and installation height of the foundation connecting plate 4 to ensure the thickness of the grouting layer 8, thereby ensuring the reliability of the connection. The locking nut 10 is used to realize the detachable connection between the connecting box 2 and the concrete ground foundation 3.

[0018] In this embodiment, since the box-type module 1 includes two side-by-side, two positioning cones 6 are correspondingly provided on the upper surface of the foundation connecting plate 4, and the fixing cone 7 of the foundation connecting plate 4 is located in the middle of the lower surface of the foundation connecting plate 4. Thus, one foundation connecting plate 4 is used to achieve the positioning connection of two adjacent box-type modules 1, simplifying construction and improving efficiency. It should be noted that this utility model is also applicable to the connection of a single box-type module 1, box-type modules 1 with three opposite corners, and box-type modules 1 with four opposite corners to a concrete ground foundation. Only the number of positioning cones 6 and the setting position of the fixing cone 7 need to be adjusted adaptively.

[0019] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A box steel construction building foundation connection joint comprising a box module, characterized by: The box module corner is provided with a connecting box, the outer end surface of the connecting box is provided with a positioning hole and a connecting hole, a foundation connecting plate and a long screw rod are arranged between the connecting box of the box module and the concrete floor foundation, the upper surface of the foundation connecting plate is provided with a positioning cone corresponding to the position of the positioning hole, and the lower surface is provided with a fixing cone, the foundation connecting plate is provided with a through hole corresponding to the position of the connecting hole, the lower end of the long screw rod is embedded in the concrete floor foundation, the upper end penetrates through the through hole and the connecting hole and is connected with the connecting box, the concrete floor foundation is provided with a groove corresponding to the position of the fixing cone, the interval D1 between the top surface of the concrete floor foundation and the bottom surface of the foundation connecting plate is not less than 50 mm, and a grouting layer is arranged between the concrete floor foundation and the foundation connecting plate.

2. The box steel building foundation connection node of claim 1, wherein: The long screw rod is provided with a positioning nut and a locking nut, the positioning nut is arranged on the lower side of the foundation connecting plate, and the locking nut is arranged on the upper side of the outer end surface of the connecting box.

3. The box steel building foundation connection joint of claim 2, wherein: The groove depth D2 is not less than 3 times of D1.

4. The box steel building foundation connection node according to any one of claims 1-3, characterized in that: The thickness of the foundation connecting plate is not less than 20 mm.

5. The box steel building foundation connection joint according to any one of claims 1-3, characterized in that: The cross sections of the positioning cone and the fixing cone are both cross-shaped.

6. The box steel building foundation connection joint according to any one of claims 1-3, characterized in that: The number of connecting holes on each connecting box is 2.

7. The box steel building foundation connection joint according to any one of claims 1-3, characterized in that: The box module includes two modules arranged side by side, the upper surface of the foundation connecting plate is provided with two positioning cones, and the fixing cone of the foundation connecting plate is arranged in the middle of the lower surface of the foundation connecting plate.

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