Steel beam haunching connecting structure of steel structure floor

Abstract

The utility model relates to the field of haunched connection structures, in particular to a steel structural floor steel beam haunched connection structure, which adopts the technical scheme that the steel structural floor steel beam haunched connection structure comprises a longitudinal steel structural beam, a transverse steel structural beam and a haunched beam, the cross section of the longitudinal steel structure beam is of an X-shaped structure, the cross section of the longitudinal steel structure beam is of an X-shaped structure, the haunched beam is arranged at the included angle between the longitudinal steel structure beam and the transverse steel structure beam, and a plurality of annular reinforcing steel bars are installed on the outer side of the haunched beam in a sleeved mode. When concrete is poured, due to the influence of the surface tension of the concrete, most of the concrete can be blocked outside the annular steel bars, so that the stress on the surface of the haunched beam can be reduced when the concrete is hardened and contracted, the effect of supporting and protecting the haunched beam is achieved, cracks or bending deformation on the surface of the haunched beam is avoided, and the whole haunched beam structure is more stable.

Description

Technical Field

[0001] The utility model relates to the field of haunch connection structures, in particular to a steel structure floor slab steel beam haunch connection structure. Background Art

[0002] A haunch connection is a method of reinforcing the joint strength by adding transverse steel plates to the joint area of ​​steel beams. This design improves the load-bearing capacity of the joint area and prevents structural failure. This type of connection is commonly used in building and bridge engineering to strengthen the connection performance of steel beams and ensure structural stability and load-bearing capacity. It is an effective measure to enhance joint strength and stability and plays a vital role in various engineering projects.

[0003] The existing technology has the following shortcomings: during the casting process of the steel structure floor, the axil connection structure between the crossbeam and the longitudinal beam will be wrapped in concrete, and concrete has the characteristics of hardening and shrinkage. If the concrete layer shrinks unevenly during the hardening process, it may cause different stress distributions on the surface of the axil connection, and then cracks will appear on the surface of the connection. In addition, large stress concentrations may occur in certain parts of the axil connection. These stress concentrations may cause bending deformation of the axil connection, thereby affecting the stability of the entire structure.

[0004] Therefore, it is necessary to invent a steel structure floor steel beam plus haunch connection structure. Utility Model Content

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel structure floor steel beam plus armpit connection structure, comprising a longitudinal steel structure beam, a transverse steel structure beam and an armpit beam, the transverse steel structure beam is vertically inserted and installed on the longitudinal steel structure beam, one end of the armpit beam is fixedly installed with a longitudinal beam connecting plate, and the other end of the armpit beam is fixedly installed with the transverse beam connecting plate, the armpit beam is arranged at the angle between the longitudinal steel structure beam and the transverse steel structure beam, the longitudinal beam connecting plate is fixedly installed on the surface of the longitudinal steel structure beam, and the transverse beam connecting plate is fixedly installed on the surface of the transverse steel structure beam, the cross-section of the armpit beam is an X-shaped structure, and a plurality of annular steel bars are sleeved and installed on the outside of the armpit beam.

[0006] Preferably, the armpit beam is obliquely arranged at the angle between the longitudinal steel structure beam and the transverse steel structure beam, and both ends of the armpit beam are parallel to the surfaces of the longitudinal steel structure beam and the transverse steel structure beam respectively.

[0007] Preferably, viewed from a cross section, the axillar beam is composed of a middle vertical plate and inclined plates at upper and lower ends, and the inclined plates at both ends of the middle vertical plate of the axillar beam are forked to both sides.

[0008] Preferably, the annular reinforcement is in a rectangular ring structure as a whole, and the four corners of the inner wall of the annular reinforcement are fixedly connected to the vertical plate in the middle of the axillar beam and the ends of the inclined plates at both ends, and the annular reinforcement can block concrete.

[0009] Preferably, the annular steel bars in the middle of the axillary beam are horizontally sleeved on the surface of the axillary beam, and the annular steel bars at both ends of the axillary beam are obliquely arranged on the surface of the axillary beam.

[0010] Preferably, bolts are inserted into the surfaces of the longitudinal beam connecting plates and the transverse beam connecting plates, the longitudinal beam connecting plates are fixedly connected to the longitudinal steel structure beams by bolts, and the transverse beam connecting plates are fixedly connected to the transverse steel structure beams by bolts.

[0011] The beneficial effect of the utility model is that a cavity is formed between the axillary beam with an X-shaped cross-section and the annular steel bar installed on the outer wall of the axillary beam. When pouring concrete, most of the concrete will be blocked outside the annular steel bar due to the surface tension of the concrete. In this way, the stress on the surface of the axillary beam will be reduced when the concrete hardens and shrinks, so as to achieve the effect of supporting and protecting the axillary beam, avoid cracks or bending deformation on the surface of the axillary beam, and make the entire axillary beam structure more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a diagram showing a usage scenario of a steel structure floor steel beam plus haunch connection structure provided by the utility model;

[0013] Figure 2 This is a structural diagram of a steel structure floor steel beam plus haunch connection structure provided by the utility model;

[0014] Figure 3 A top view of a steel structure floor steel beam plus haunch connection structure provided by the utility model;

[0015] Figure 4 This is a cross-sectional view of a steel structure floor steel beam plus haunch connection structure provided by the utility model;

[0016] In the figure: haunch beam 11, longitudinal beam connecting plate 12, transverse beam connecting plate 13, bolt 14, annular reinforcement 15, longitudinal steel structure beam 2, transverse steel structure beam 3. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0018] Example 1

[0019] like Figure 1 - Figure 4As shown, a steel structure floor steel beam plus armpit connection structure in the embodiment of the first aspect of the present invention includes a longitudinal steel structure beam 2, a transverse steel structure beam 3 and an armpit beam 11, the transverse steel structure beam 3 is vertically inserted and installed on the longitudinal steel structure beam 2, one end of the armpit beam 11 is fixedly installed with a longitudinal beam connecting plate 12, and the other end of the armpit beam 11 is fixedly installed with the transverse beam connecting plate 13, the armpit beam 11 is arranged at the angle between the longitudinal steel structure beam 2 and the transverse steel structure beam 3, the longitudinal beam connecting plate 12 is fixedly installed on the surface of the longitudinal steel structure beam 2, and the transverse beam connecting plate 13 is fixedly installed on the surface of the transverse steel structure beam 3, the cross-section of the armpit beam 11 is an X-shaped structure, and a plurality of annular steel bars 15 are sleeved on the outside of the armpit beam 11.

[0020] In the above embodiment, it should be noted that a cavity is formed between the annular steel bar 15 and the axillary beam 11 by the annular steel bar 15 that is installed by sleeve-connecting the axillary beam 11 with an X-shaped cross-section and the outer wall of the axillary beam 11. When pouring concrete, most of the concrete will be blocked outside the annular steel bar 15 due to the surface tension of the concrete. In this way, the stress on the surface of the axillary beam 11 will be reduced when the concrete hardens and shrinks, so as to achieve the effect of supporting and protecting the axillary beam, avoid cracks on the surface of the axillary beam 11, or avoid bending deformation, so that the entire axillary beam 11 structure is more stable.

[0021] Example 2

[0022] like Figure 1 - Figure 4 As shown, a steel structure floor steel beam plus armpit connection structure includes all the contents of Example 1. In addition, the armpit beam 11 is obliquely arranged at the angle between the longitudinal steel structure beam 2 and the transverse steel structure beam 3. The two ends of the armpit beam 11 are parallel to the surfaces of the longitudinal steel structure beam 2 and the transverse steel structure beam 3 respectively. From the cross section, the armpit beam 11 is composed of a middle vertical plate and inclined plates at the upper and lower ends. The inclined plates at both ends of the middle vertical plate of the armpit beam 11 are forked to both sides.

[0023] In the above embodiment, it should be noted that, viewed from the cross section, the X-shaped axillar beam 11 can form a triangular stable structure with the annular reinforcement 15 in all four directions, thereby greatly improving the structural strength of the axillar beam 11 .

[0024] Example 3

[0025] like Figure 1 - Figure 4As shown, a steel structure floor steel beam plus armpit connection structure includes all the contents of Example 2. In addition, the annular steel bar 15 is a rectangular annular structure as a whole. The four corners of the inner wall of the annular steel bar 15 are fixedly connected to the vertical plate in the middle of the armpit beam 11 and the ends of the inclined plates at both ends. The annular steel bar 15 can block concrete. The annular steel bar 15 in the middle of the armpit beam 11 is horizontally sleeved on the surface of the armpit beam 11, and the annular steel bars 15 at both ends of the armpit beam 11 are obliquely arranged on the surface of the armpit beam 11.

[0026] In the above embodiment, it should be noted that the four corners of the inner wall of the annular reinforcement 15 and the middle vertical plate and the ends of the inclined plates at both ends of the haunch beam 11 are fixedly connected by welding.

[0027] Example 4

[0028] like Figure 1 - Figure 3 As shown, a steel structure floor steel beam plus haunch connection structure includes all the contents of Example 1. In addition, bolts 14 are inserted into the surfaces of the longitudinal beam connecting plate 12 and the transverse beam connecting plate 13. The longitudinal beam connecting plate 12 is fixedly connected to the longitudinal steel structure beam 2 by the bolts 14, and the transverse beam connecting plate 13 is fixedly connected to the transverse steel structure beam 3 by the bolts 14.

[0029] In the above embodiment, it should be noted that the longitudinal beam connecting plate 12 and the transverse beam connecting plate 13 are respectively installed on the surface of the longitudinal steel structure beam 2 and the transverse steel structure beam 3 by bolts 14, so as to achieve the effect of fixing the axillar beam 11.

[0030] The usage process of the present invention is as follows: technicians in this field use bolts 14 to install the longitudinal beam connecting plate 12 and the transverse beam connecting plate 13 on the surface of the longitudinal steel structure beam 2 and the transverse steel structure beam 3 respectively, so that the axillary beam 11 is fixed at the angle between the longitudinal steel structure beam 2 and the transverse steel structure beam 3, and then pour the concrete formwork. When pouring concrete, due to the influence of the surface tension of the concrete, most of the concrete will be blocked outside the ring-shaped steel bar 15, so that the stress on the surface of the axillary beam 11 is reduced.

[0031] The above description is merely a preferred embodiment of the present invention. Anyone skilled in the art may utilize the above-described technical solutions to modify the present invention or create equivalent technical solutions. Therefore, any simple modification or equivalent replacement based on the technical solutions of the present invention falls within the scope of protection claimed by the present invention.

Claims

1. A steel structure floor steel beam plus haunch connection structure, comprising a longitudinal steel structure beam (2), a transverse steel structure beam (3) and a haunch beam (11), wherein the transverse steel structure beam (3) is vertically inserted and installed on the longitudinal steel structure beam (2), and is characterized in that: A longitudinal beam connecting plate (12) is fixedly installed at one end of the axillar beam (11), and a transverse beam connecting plate (13) is fixedly installed at the other end of the axillar beam (11). The axillar beam (11) is arranged at the angle between the longitudinal steel structure beam (2) and the transverse steel structure beam (3). The longitudinal beam connecting plate (12) is fixedly installed on the surface of the longitudinal steel structure beam (2), and the transverse beam connecting plate (13) is fixedly installed on the surface of the transverse steel structure beam (3). The cross section of the axillar beam (11) is an X-shaped structure, and a plurality of annular steel bars (15) are sleeved and installed on the outer side of the axillar beam (11).

2. The steel structure floor steel beam haunch connection structure according to claim 1, characterized in that: The axillar beam (11) is obliquely arranged at the angle between the longitudinal steel structure beam (2) and the transverse steel structure beam (3), and the two ends of the axillar beam (11) are respectively parallel to the surfaces of the longitudinal steel structure beam (2) and the transverse steel structure beam (3).

3. The steel structure floor steel beam haunch connection structure according to claim 1, characterized in that: From the cross section, the axillary beam (11) is composed of a middle vertical plate and inclined plates at the upper and lower ends. The inclined plates at the two ends of the middle vertical plate of the axillary beam (11) are forked to both sides.

4. The steel structure floor steel beam haunch connection structure according to claim 3, characterized in that: The annular steel bar (15) is a rectangular annular structure as a whole. The four corners of the inner wall of the annular steel bar (15) are fixedly connected to the middle vertical plate and the ends of the inclined plates at both ends of the axillar beam (11). The annular steel bar (15) can block concrete.

5. The steel structure floor steel beam haunch connection structure according to claim 1, characterized in that: The annular steel bar (15) in the middle of the axilla beam (11) is horizontally sleeved on the surface of the axilla beam (11), and the annular steel bars (15) at both ends of the axilla beam (11) are obliquely arranged on the surface of the axilla beam (11).

6. The steel structure floor steel beam haunch connection structure according to claim 1, characterized in that: Bolts (14) are inserted into the surfaces of the longitudinal beam connecting plate (12) and the transverse beam connecting plate (13); the longitudinal beam connecting plate (12) is fixedly connected to the longitudinal steel structure beam (2) via the bolts (14); and the transverse beam connecting plate (13) is fixedly connected to the transverse steel structure beam (3) via the bolts (14).

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