An embedded part with both anti-pulling and anti-shearing functions

Abstract

An embedded part with both anti-pulling and anti-shearing functions, belonging to the field of structural design, especially the embedded part used in concrete structures. It has an end plate, on which steel strips are arranged along the length direction, and anti-shearing studs are respectively arranged on both sides of the steel strips on the end plate. The beneficial effects of the present invention are: through a clever structural arrangement, a new type of embedded part with both anti-pulling and anti-shearing functions is constructed. The steel strips and the anti-shearing studs jointly resist the horizontal shear force to provide anti-shearing ability, and the steel strips and the anti-pulling keys jointly resist the vertical tensile force to provide anti-pulling ability. The entire embedded part has large anti-shearing and anti-pulling bearing capacities, and can effectively solve the technical problems of insufficient bearing capacity and difficult installation of the embedded parts of inclined members.

Description

Technical Field

[0001] A pre-embedded part with both anti-pulling and anti-shearing functions belongs to the field of structural design, especially the pre-embedded part used in concrete structures. Background Art

[0002] Bracing is a commonly used lateral force resisting member in structural design. Compared with beams and columns, it uses axial stiffness to provide lateral support for the structure. At the same time, it forms a system with the connected beams and columns, thus effectively improving the lateral resistance ability of the structure. In steel structure design, the bracing is welded to the gusset plate, and the gusset plate is welded to the steel beam and steel column, which is relatively convenient. However, the connection of bracing in concrete structures is relatively complex, and pre-embedded parts need to be set in the concrete. The "Code for Design of Concrete Structures" in China mentions the pre-embedded parts with embedded anchor bars. Its structure is simple and the force mechanism is clear, so it is widely used in practice. However, due to structural limitations, the bearing capacities of anti-pulling and anti-shearing of this type of pre-embedded parts are relatively low, and it is difficult to meet the requirements of bracing with large bearing capacity. Moreover, with the development of technology, the structural shape is becoming more and more complex, and the limit values of the cross-sectional dimensions of components are becoming more and more strict. Therefore, bracings with large bearing capacity are being widely used.

[0003] The bracing is obliquely loaded, and the force direction of the pre-embedded part is also oblique, that is, the pre-embedded part needs to have large anti-shearing and anti-pulling bearing capacities. In the prior art, the use of pre-embedded parts with anchor bars is restricted. Although the pre-embedded parts with profiled steel have large anti-shearing and anti-pulling bearing capacities, they are very likely to collide with stirrups, resulting in great construction difficulty and poor installation effect. Summary of the Invention

[0004] The problem to be solved by the present invention is to provide a pre-embedded part with both anti-pulling and anti-shearing functions and easy to install in view of the above deficiencies. The technical solution is as follows:

[0005] A pre-embedded part with both anti-pulling and anti-shearing functions, the key technology of which lies in having an end plate, steel strips are arranged along the length direction on the end plate, and anti-shearing stud bolts are respectively arranged on both sides of the steel strips on the end plate.

[0006] The length direction of the steel strip is perpendicular to the plane of the end plate.

[0007] The shape of the steel strip is corrugated.

[0008] An anti-pulling key is arranged at the tail end of the steel strip.

[0009] The steel strips are arranged at equal intervals on the end plate.

[0010] The spacing between the steel strips is 30 - 50 mm.

[0011] The widths of the steel strips are the same.

[0012] The lengths of the steel strips at both ends of the end plate are greater than the length of the steel strip in the middle of the end plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Through a clever structural arrangement, a new type of embedded part with both anti-pulling and anti-shearing functions is constructed. The steel strips and the shear bolts jointly resist the horizontal shear force to provide anti-shearing ability, and the steel strips and the anti-pulling keys jointly resist the vertical tensile force to provide anti-pulling ability. The whole embedded part has large anti-shearing and anti-pulling bearing capacities, and can effectively solve the technical problems of insufficient bearing capacity and difficult installation of the embedded parts of inclined members.

[0015] 2. The shape of the steel strip is corrugated, which can not only increase the contact surface between the steel strip and the concrete, but also enable the concrete to wrap the steel strip from multiple angles, improving its anti-pulling bearing capacity.

[0016] 3. The corrugated steel strips are arranged at intervals, and the gaps between them are conducive to the layout of stirrups, making the installation convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 , is the front elevation view of the present invention;

[0018] Figure 2 , is the side elevation view of the present invention;

[0019] Figure 3 , is the plan view of the present invention;

[0020] Figure 4 , is the schematic structural view of the shear bolt of the present invention;

[0021] Figure 5 , is the schematic structural view of the anti-pulling key of the present invention;

[0022] Figure 6 , is the usage state view of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0023] See Figures 1 to 3 , an embedded part with both anti-pulling and anti-shearing functions, the key technology of which is that it has an end plate 1, a steel strip 3 is arranged along the length direction on the end plate 1, and shear bolts 2 are respectively arranged on both sides of the steel strip 3 on the end plate 1.

[0024] The length direction of the steel strip 3 is perpendicular to the plane of the end plate 1.

[0025] The shape of the steel strip 3 is corrugated.

[0026] An anti-pulling key 4 is arranged at the tail end of the steel strip 3.

[0027] The steel strips 3 are arranged at equal intervals on the end plate 1.

[0028] The spacing between the steel strips 3 is 30 to 50 mm.

[0029] The widths of the steel strips 3 are the same.

[0030] The lengths of the steel strips 3 at both ends of the end plate are gradually greater than the lengths of the steel strips 3 in the middle of the end plate, and the connection line of the tails of the steel strips 3 is parabolic.

[0031] See Figure 4 , the shear stud 2 is provided with a cap body 2.2 at the lower end of the stud body 2.1.

[0032] See Figure 5 , the uplift key 4 has a cone 4.2 at the lower end of the uplift key body 4.1.

[0033] As Figure 6 shown, the installation of the embedded part can be carried out after the binding of the structural longitudinal bars and stirrups of the concrete. By using the misalignment between the gaps of the corrugated steel strips 3 and the spacing of the stirrups 8, the embedded part is installed in an interspersed manner, thus avoiding collisions.

[0034] In the figure, 5 is the upper pier, 6 is the isolation bearing, and 7 is the lower pier.

Claims

1. An embedded part with both anti-pulling and anti-shearing functions, characterized in that It has an end plate (1), on which steel strips (3) are arranged along the length direction. Shear studs (2) are respectively arranged on both sides of the steel strip (3) on the end plate (1). The length direction of the steel strip (3) is perpendicular to the plane of the end plate (1). The shape of the steel strip (3) is corrugated. An anti-pulling key (4) is arranged at the tail end of the steel strip (3). The steel strips (3) are arranged at equal intervals on the end plate (1). The spacing of the steel strips (3) is 30-50 mm. The widths of the steel strips (3) are the same. The lengths of the steel strips (3) at both ends of the end plate are greater than the lengths of the steel strips (3) in the middle of the end plate. The shear stud (2) has a cap body (2.2) arranged at the lower end of the stud body (2.1). The anti-pulling key (4) has a cone (4.2) at the lower end of the anti-pulling key body (4.1). The installation of this embedded part is carried out after the binding of the structural longitudinal bars and stirrups of the concrete. By using the misalignment between the gaps of the corrugated steel strips (3) and the spacing of the stirrups (8), the embedded part is installed in an interspersed manner, thus avoiding collision.

Images