Shear key positioning steel structure

Abstract

The utility model discloses a shear key positioning steel structure which comprises an anchor plate, I-shaped steel is fixedly connected to the top end of the anchor plate, bolt holes are symmetrically formed in the positions, close to the two sides of the I-shaped steel, of the anchor plate, a fixing plate is arranged at the bottom end of the anchor plate, and bolt holes are symmetrically formed in the positions, corresponding to the anchor plate, of the fixing plate. The anchor plate is fixedly connected with the fixing plate, shear keys are fixedly connected to the four corners of the bottom end of the fixing plate, bolts are arranged between the fixing plate and the anchor plate, and nuts are fixedly installed at the top ends of the bolts. The shear key and the anchor plate can be disassembled and assembled, the connection fault-tolerant rate of the shear key is further reduced, the shear key and the base are designed to be of a rectangular-ambulatory-plane structure, the shear resistance of the structure in different directions is further enhanced, and the overall safety of the structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building structures, in particular to a shear key positioning steel structure. Background Art

[0002] The pressure on steel structures can be divided into two types: one is the compressive force from the outside to the inside, and the other is the tensile force from the inside to the outside. The two forces have different effects on the shear keys. When the horizontal force is in a pressure state, the column base is subjected to unilateral compressive shear force, and the concrete is subjected to bidirectional pressure, which increases the pressure strength exponentially, and the shear resistance of the shear key will also increase accordingly.

[0003] Traditional shear keys are generally welded to the anchor plate using channel steel or I-beam. This conventional shear key has a single structure and is difficult to cope with shear forces in multiple directions. In addition, existing shear keys are often welded to the bottom of the anchor plate, making them difficult to disassemble during operation and having a low fault tolerance rate. Utility Model Content

[0004] The utility model aims to provide a shear key positioning steel structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shear key positioning steel structure, comprising an anchor plate, the top of the anchor plate is fixedly connected to an I-beam, the anchor plate is provided with symmetrically arranged bolt holes near both sides of the I-beam, the bottom of the anchor plate is provided with a fixing plate, the fixing plate is provided with symmetrically arranged bolt holes corresponding to the anchor plate, the four corners of the bottom end of the fixing plate are fixedly connected with shear keys, bolts are provided between the fixing plate and the anchor plate, and nuts are fixedly installed on the top of the bolts.

[0006] Preferably, anchor rod holes are provided at the four corners of the anchor plate, and anchor rods are provided in the anchor rod holes.

[0007] Preferably, symmetrically arranged reinforcing ribs are welded between the two lateral sides of the I-beam and the anchor plates, and the reinforcing ribs are designed as a trapezoidal structure.

[0008] Preferably, the shear key is designed as an L-shaped structure, the recessed areas of the shear key are arranged relatively to each other, and the shear key and the cement base form a U-shaped structure.

[0009] Preferably, a nut hole is provided at the bottom end of the bolt hole provided in the fixing plate, and the nut hole is flush with the height of the bolt nut.

[0010] Compared with the prior art, the beneficial effects of the utility model are: different from the traditional shear key structure, the shear key and the anchor plate can be disassembled and installed through the connection and cooperation of the anchor plate, the fixing plate, the bolts and the nuts, which further reduces the connection fault tolerance of the shear key, and adopts a U-shaped structural design between the shear key and the base, which further enhances the shear performance of the structure in different directions and improves the overall safety of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the main structure and force analysis diagram of the utility model;

[0012] Figure 2 This is a schematic diagram of the bottom structure of the utility model;

[0013] Figure 3 It is a main structural sectional view of the utility model.

[0014] In the figure: 1. anchor plate; 2. I-beam; 3. bolt hole; 4. fixing plate; 5. shear key; 6. bolt; 7. nut; 8. anchor bar hole; 9. anchor bar; 10. reinforcing bar. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1-3 The utility model provides a technical solution: a shear key positioning steel structure, including an anchor plate 1, an I-beam 2 is fixedly connected to the top of the anchor plate 1, symmetrically arranged bolt holes 3 are opened on both sides of the anchor plate 1 near the I-beam 2, a fixing plate 4 is provided at the bottom of the anchor plate 1, and the fixing plate 4 has symmetrically arranged bolt holes 3 corresponding to the anchor plate 1, shear keys 5 are fixedly connected at the four corners of the bottom end of the fixing plate 4, bolts 6 are arranged between the fixing plate 4 and the anchor plate 1, and nuts 7 are fixedly installed on the top of the bolts 6.

[0017] Anchor holes 8 are provided at the four corners of the anchor plate 1, and anchor bars 9 are provided in the anchor holes 8 to facilitate fixing the I-beam 2;

[0018] Symmetrically arranged reinforcing ribs 10 are welded between the I-beam 2 and the anchor plate 1 on both sides of the transverse direction. The reinforcing ribs 10 are designed as a trapezoidal structure to avoid stress concentration at the welding intersection of the I-beam 2, the anchor plate 1 and the reinforcing ribs 10;

[0019] The shear key 5 is designed as an L-shaped structure, the recessed areas of the shear key 5 are arranged relatively, and the shear key 5 and the cement base form a U-shaped structure. The U-shaped structure design can enhance the shear resistance of the entire structure and improve the safety of the entire structure.

[0020] A nut hole is provided at the bottom end of the bolt hole 3 provided in the fixing plate 4, and the nut hole is flush with the height of the nut of the bolt 6, so as to facilitate the pouring of the concrete shear key 5 and improve the integrity of the concrete pouring.

[0021] Specifically, when using the utility model, align the bolt hole 3 opened in the fixing plate 4 with the bolt hole 3 opened in the anchor plate 1, insert the bolt 6 from the fixing plate 4, insert the bolt 6 and install the nut 7, then align the overall structure with the base and install it, and pour concrete.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shear key positioning steel structure, characterized in that: The invention comprises an anchor plate (1), wherein the top end of the anchor plate (1) is fixedly connected to an I-beam (2), the anchor plate (1) is provided with symmetrically arranged bolt holes (3) on both sides close to the I-beam (2), the bottom end of the anchor plate (1) is provided with a fixing plate (4), the fixing plate (4) is provided with symmetrically arranged bolt holes (3) corresponding to the anchor plate (1), the bottom end of the fixing plate (4) is fixedly connected to shear keys (5) at four corners, a bolt (6) is provided between the fixing plate (4) and the anchor plate (1), and a nut (7) is fixedly installed at the top end of the bolt (6).

2. A shear key positioning steel structure according to claim 1, characterized in that: Anchor bars (8) are provided at the four corners of the anchor plate (1), and anchor bars (9) are provided in the anchor bars holes (8).

3. The shear key positioning steel structure according to claim 1, characterized in that: Symmetrically arranged reinforcing ribs (10) are welded between the two lateral sides of the I-beam (2) and the anchor plate (1), and the reinforcing ribs (10) are of trapezoidal structural design.

4. The shear key positioning steel structure according to claim 1, characterized in that: The shear key (5) is designed as an L-shaped structure, the recessed areas of the shear key (5) are arranged relative to each other, and the shear key (5) and the cement base form a U-shaped structure.

5. The shear key positioning steel structure according to claim 1, characterized in that: A nut hole is provided at the bottom end of the bolt hole (3) provided in the fixing plate (4), and the nut hole is flush with the height of the nut of the bolt (6).

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