A hollow slab and steel structure connecting joint structure

Abstract

The utility model discloses a hollow core slab and steel structure's connecting joint structure relates to the field of hollow core slab and steel structure connection, aims at providing a kind of hollow core slab and steel structure's connecting joint, the technical scheme that adoption is, including steel column and hollow core slab, steel column is connected with main beam by H type steel beam, H type steel beam, main beam is connected with the hollow core slab with missing angle, there is steel strand on hollow core slab, there is cast-in-place concrete between missing angle and steel column, there is supporting member on steel column, the end of steel strand and supporting member are in cast-in-place concrete, supporting member bottom is with slab bottom flat, supporting member does not leak out. By the hollow core slab is used missing angle rectangular plate, and reserves steel strand, can be combined with steel structure column with hollow core slab simultaneously, the integrity of steel structure material is guaranteed, so as to ensure that its strength does not decline, can use conventional material, cost is lower;By cast-in-place concrete, hollow core slab, steel column, steel strand and supporting member are poured into one whole, can ensure the strength of connecting portion.

Description

Technical Field

[0001] This utility model relates to the technical field of hollow slab and steel structure connection, specifically a connection node structure between hollow slab and steel structure. Background Technology

[0002] Because existing hollow slabs use a rectangular structure, when connected to steel structures, interference between the hollow slabs and steel columns results in large gaps between the hollow slabs and steel beams, making it difficult to connect them. Furthermore, placing them on both sides of the steel beams makes it difficult to form a continuous plane.

[0003] Chinese patent CN210530080U discloses a shear connection structure for a steel structure drop slab joint. The technical solution includes H-beams, shear reinforcement bars, a floor slab, and post-cast concrete. The H-beams include a web and upper and lower flanges welded perpendicularly to both sides of the web. Several through holes are provided on the web. The shear reinforcement bars pass through the through holes and are located on both sides of the web. The floor slab rests on the lower flange of the H-beams and has grooves for the reinforcement bars. The shear reinforcement bars pass through the grooves. The post-cast concrete fills the grooves and encloses the shear reinforcement bars.

[0004] The existing patent requires opening through holes in the web of the H-beam, which increases the complexity of material processing, and opening holes will also reduce the strength of the H-beam. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a connection node structure between a hollow slab and a steel structure, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model discloses a connection node structure between a hollow slab and a steel structure. The technical solution includes a steel column and a hollow slab. An H-shaped steel beam is connected to the steel column, and a main beam is connected to the H-shaped steel beam. The H-shaped steel beam and the main beam are connected to the hollow slab. The hollow slab is a rectangular slab with a missing corner, the missing corner corresponding to the position of a hole in the hollow slab. The hollow slab has at least two steel strands. Cast-in-place concrete is placed between the missing corner and the steel column. Supports are attached to the steel column, and the ends of the steel strands and the supports are located within the cast-in-place concrete. By casting the steel strands, supports, and hollow slab into a single unit using cast-in-place concrete, the stability of the hollow slab connection can be improved.

[0007] In a preferred embodiment of this invention, the hollow slab tube contains a plug, and the cast-in-place concrete is located outside the plug. The steel strands can improve the concrete strength.

[0008] In a preferred embodiment of this invention, the steel column is a box-shaped column, and the supporting member is an angle steel connected to the side of the steel column, with the angle steel located between the hollow slab and the steel column. The angle steel can enhance the strength of the cast-in-place concrete or support the hollow slab.

[0009] As a preferred embodiment of this utility model, the steel column is an irregularly shaped column, and the support member is a support plate connected to the side of the steel column.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: By using a rectangular plate with missing corners for the hollow slab, this utility model can combine the hollow slab with the steel structure column while ensuring the integrity of the steel structure material, thus ensuring that the strength is not reduced, and using conventional materials at a lower cost; by casting the hollow slab, steel column, steel strand and support components into a whole by casting concrete, the connection can be achieved while ensuring the strength of the connection. Attached Figure Description

[0011] Figure 1 This is a top view of the structure of the first embodiment of the present invention;

[0012] Figure 2 This is a front view structural diagram of the first embodiment of the present invention;

[0013] Figure 3 This is an enlarged structural diagram of section A in the first embodiment of this utility model;

[0014] Figure 4 This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0015] Figure 5 This is a top view of the third embodiment of the present invention.

[0016] Figure 6 This is a front view structural diagram of the third embodiment of the present utility model.

[0017] In the diagram: 1. Steel column; 101. H-beam; 2. Main beam; 3. First hollow slab; 4. Cast-in-place concrete; 5. Steel strand; 6. End cap; 7. Angle steel; 8. Support plate; 9. Second hollow slab. Detailed Implementation

[0018] 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. Example 1

[0019] like Figures 1 to 3 The first embodiment of this utility model is disclosed, and the technical solution adopted is as follows: It includes a steel column 1, which is a box-shaped column. An H-shaped steel beam 101 is provided on its side for connection to the main beam 2. The H-shaped steel beam 101 and the main beam 2 are connected by a connecting plate and bolts, and the connecting end faces are welded. The hollow slab is a first hollow slab 3. During the production and casting process, a rectangular columnar protrusion is provided at the top corner of the hollow slab mold, resulting in a square notch at the top corner of the cast first hollow slab 3. A hollow slab tube hole is located at the notch, and a plug 6 is provided inside the hollow slab tube hole. Three steel strands 5 are pre-reserved on the first hollow slab 3. The steel strands 5 are located between two adjacent hollow slab tube holes and are biased towards the bottom surface, extending to the notch.

[0020] Angle steel 7 is welded to the side of steel column 1 at the position opposite to the hollow slab tube hole at the missing corner. The bottom surface of angle steel 7 is flush with the top surface of H-beam 101 and perpendicular to steel strand 5. Figure 1 As shown, the first hollow slab 3, with one end perpendicular to the steel strand 5, rests on the top surface of the H-beam 101 and the main beam 2. A casting template is installed to support the first hollow slab 3. Cast-in-place concrete 4 and surface concrete are then poured, integrating the steel column 1, the first hollow slab 3, the steel strand 5, and the angle steel 7 into a single unit, together with the main beam 2, forming a concrete plane. After the concrete has solidified, the template is removed. The cast-in-place concrete 4 is located at the four missing corners of the first hollow slab 3 around the steel column 1, and the angle steel 7 provides strength reinforcement to the cast-in-place concrete 4. Example 2

[0021] like Figure 4 As shown, the difference between this embodiment and embodiment 1 is that the angle steel 7 is parallel to the steel strand 5, and the bottom surface of the first hollow plate 3 is supported on the angle steel 7. Example 3

[0022] like Figure 5 , Figure 6 As shown, the difference between this embodiment and Embodiment 1 is that the steel column 1 is a T-shaped special-shaped steel, and the hollow plate also includes a second hollow plate 9. There are two hollow plate tube holes at the missing corner of the second hollow plate 9, and plugs 6 are also provided in the two hollow plate tube holes. Two steel strands 5 are provided at each location on the second hollow plate 9. The missing corner of the second hollow plate 9 is located at the main body web of the steel column 1. A support plate 8 is welded on the special-shaped steel as a support member. The support plate 8 is a square steel plate, including a small support steel plate and a large support steel plate. The small support steel plate is set at the missing corner of the first hollow plate 3 on both sides of the support of the steel column 1, and the large support steel plate is located at the missing corner of the second hollow plate 9 and the first hollow plate 3 in the main body. The cast-in-place concrete 4 is used to cast the steel column 1, the first hollow plate 3, the steel strands 5, the support plate 8, and the second hollow plate 9 into a whole.

[0023] The mechanical connection involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It is common knowledge.

[0024] Components not described in detail in this article are existing technologies.

[0025] 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 connection node structure between a hollow slab and a steel structure, comprising a steel column (1) and a hollow slab, wherein an H-beam (101) is connected to the steel column (1), a main beam (2) is connected to the H-beam (101), and the hollow slab is connected to the H-beam (101) and the main beam (2), characterized in that: The hollow slab is a rectangular slab with a missing corner. The missing corner corresponds to the position of the hollow slab tube hole. There are steel strands (5) on the hollow slab. There is cast-in-place concrete (4) between the missing corner and the steel column (1). There are support members on the steel column (1). The end of the steel strands (5) and the support members are located in the cast-in-place concrete (4).

2. The connection node structure between the hollow slab and the steel structure according to claim 1, characterized in that: The hollow slab tube hole has a plug (6), and the cast-in-place concrete (4) is located outside the plug (6).

3. The connection node structure between the hollow slab and the steel structure according to claim 2, characterized in that: The steel column (1) is a box column, and the supporting member is an angle steel (7), which is connected to the side of the steel column (1). The angle steel (7) is located between the hollow plate and the steel column (1).

4. The connection node structure between the hollow slab and the steel structure according to claim 2, characterized in that: The steel column (1) is an irregularly shaped column, and the support member is a support plate (8) connected to the side of the steel column (1).

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