PEC structural section steel with closed section

Abstract

The PEC structural section steel with the closed section comprises hollow steel, concrete, a fixing assembly and a reinforcing assembly, the concrete is connected to the interior of the hollow steel in a penetrating mode, the fixing assembly is connected to the interior of the hollow steel in a penetrating mode, and the fixing assembly is used for reinforcing connection between the hollow steel and the concrete. The reinforcing assembly is arranged at the joint of the fixing assembly and the hollow steel and used for fixing the position of the fixing assembly. The fixing assembly comprises a transverse plate and a through hole, the transverse plate is connected into the hollow steel in a penetrating mode, and the through hole is formed in one side of the transverse plate. Through the design of the fixing assembly and the reinforcing assembly, the fixing assembly is fixed in the hollow steel during use, connection between the fixing assembly and the hollow steel is reinforced through the reinforcing assembly, and after concrete is poured into the hollow steel and hardened, connection between the concrete and the hollow steel is reinforced through the fixing assembly. And the condition of separation between the concrete and the hollow steel is avoided.

Description

Technical Field

[0001] This utility model relates to the field of building structure technology, and in particular to a PEC structural steel with a closed cross section. Background Technology

[0002] Closed-section PEC structural steel is a composite component consisting of closed-section steel (such as rectangular or circular hollow steel) and internally filled concrete. This structure combines the high strength of steel with the compressive strength of concrete.

[0003] When processing PEC precast components, the required closed-section steel is first processed, and then concrete is filled into the steel. After the concrete hardens, the required PEC precast component can be formed. When the PEC precast component needs to be transported to a designated location, it is transported by vehicle. However, during transportation, due to road bumps, the PEC precast component will be subjected to external impacts, leading to the failure of the bond between the steel body and the concrete and separation. Therefore, this solution proposes a closed-section PEC structural steel to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a closed-section PEC structural steel to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a PEC structural steel with a closed cross-section, comprising:

[0006] Hollow steel;

[0007] Concrete, which is interwoven within the hollow steel core;

[0008] A fixing component, which is inserted and connected inside the hollow steel, is used to strengthen the connection between the hollow steel and the concrete;

[0009] A reinforcing component is provided at the connection between the fixing component and the hollow steel, and the reinforcing component is used to fix the position of the fixing component.

[0010] Preferably, the fixing component includes:

[0011] A horizontal plate, which is inserted and connected inside the hollow steel;

[0012] A through hole is provided on one side of the horizontal plate.

[0013] Preferably, reinforcing blocks are symmetrically arranged on both sides of the horizontal plate, and the reinforcing blocks are fixedly connected to the inner wall of one side of the hollow steel.

[0014] Preferably, the front and back sides of the horizontal plate are symmetrically provided with connecting rods, one end of the connecting rod is provided with a patch, and the connection between the connecting rod and the horizontal plate is provided with a connector.

[0015] Preferably, the reinforcing component includes symmetrically formed through holes on both sides of the hollow steel, with bolts inserted into the through holes, and a nut threaded onto one end of each bolt.

[0016] Preferably, a connecting hole is provided in the middle of the horizontal plate, and the bolt is inserted into the connecting hole.

[0017] Preferably, the connector includes threaded holes symmetrically opened on the front and back of the horizontal plate, and one end of the connecting rod is fixedly connected to a threaded rod, which is threadedly inserted into the inside of the threaded hole.

[0018] The technical effects and advantages of this utility model are as follows:

[0019] This utility model, through the design of a fixing component and a reinforcing component, fixes the fixing component inside the hollow steel during use, and strengthens the connection between the fixing component and the hollow steel through the reinforcing component. When concrete is poured into the hollow steel and hardens, the fixing component strengthens the connection between the concrete and the hollow steel, preventing the concrete from separating from the hollow steel. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0021] Figure 2 This is a three-dimensional structural diagram of the fixing component of this utility model.

[0022] Figure 3 This is one of the top view cross-sectional structural schematic diagrams of this utility model.

[0023] Figure 4 This is the second top view cross-sectional structural schematic diagram of this utility model.

[0024] In the diagram: 1. Hollow steel; 2. Concrete; 3. Fixing component; 301. Adhesive block; 302. Connecting rod; 303. Horizontal plate; 304. Through hole; 305. Reinforcing block; 4. Reinforcing component; 401. Bolt; 402. Connecting hole; 403. Through hole; 404. Nut; 5. Connector; 501. Threaded hole; 502. Threaded rod. Detailed Implementation

[0025] 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.

[0026] This utility model provides, for example Figure 1-4 The PEC structural steel with a closed cross section shown includes:

[0027] Hollow steel 1;

[0028] Concrete 2 is interwoven and connected inside hollow steel 1;

[0029] Fixing component 3 is inserted and connected inside the hollow steel 1. Fixing component 3 is used to strengthen the connection between the hollow steel 1 and the concrete 2.

[0030] Reinforcing component 4 is located at the connection between fixed component 3 and hollow steel 1, and is used to fix the position of fixed component 3.

[0031] It should be noted that the hollow steel 1 is rectangular, which makes the horizontal cross section of the hollow steel 1 closed. The concrete 2 inside enhances the compressive strength and improves the overall stiffness and load-bearing capacity.

[0032] Specifically, fixed component 3 includes:

[0033] Horizontal plate 303 is inserted and connected inside the hollow steel 1;

[0034] Through hole 304 is formed on one side of horizontal plate 303.

[0035] Specifically, reinforcing blocks 305 are symmetrically arranged on both sides of the horizontal plate 303. The reinforcing blocks 305 are fixedly connected to the inner wall of one side of the hollow steel 1. Connecting rods 302 are symmetrically arranged on the front and back of the horizontal plate 303. A patch 301 is provided at one end of the connecting rod 302. A connector 5 is provided at the connection between the connecting rod 302 and the horizontal plate 303.

[0036] It should be noted that the horizontal plate 303 is symmetrically provided with reinforcing blocks 305 with triangular cross-sections on both sides. The horizontal plate 303 and the reinforcing blocks 305 are fixed by welding. The horizontal plate 303 is then inserted into the hollow steel 1. The reinforcing blocks 305 increase the contact area between the fixing component 3 and the hollow steel 1, reducing the shaking of the fixing component 3 inside the hollow steel 1. The connection between the reinforcing blocks and the hollow steel 1 is fixed by welding. Concrete 2 is poured into the hollow steel 1 and enters the through hole 304 in the middle of the horizontal plate 303, thereby strengthening the connection between the concrete 2 and the horizontal plate 303. At the same time, the connecting rods 302 and the adhesive blocks 301 on both sides of the horizontal plate 303 are inserted into the concrete 2 to strengthen the connection between the horizontal plate 303 and the concrete 2.

[0037] Specifically, the reinforcing component 4 includes symmetrically opened through holes 403 on both sides of the hollow steel 1, with bolts 401 inserted and connected inside the through holes 403, and a nut 404 threaded onto one end of the bolts 401. A connecting hole 402 is opened in the middle of the horizontal plate 303, and the bolts 401 are inserted and connected inside the connecting hole 402.

[0038] It should be noted that the connecting hole 402 and the through hole 403 are interconnected and are both cylindrical holes with the same diameter. When it is necessary to strengthen the connection between the horizontal plate 303 and the hollow steel 1, the bolt 401 is inserted from one side of the hollow steel 1 and passes through the through hole 403 and the connecting hole, so that one end of it comes out from the other side of the hollow steel 1. The nut 404 is threaded onto one end of the bolt 401 to fix the bolt 401 to the hollow steel 1, and the bolt 401 is used to strengthen the connection between the hollow steel 1 and the horizontal plate 303.

[0039] Specifically, the connector 5 includes threaded holes 501 symmetrically opened on the front and back of the horizontal plate 303, and one end of the connecting rod 302 is fixedly connected to a threaded rod 502, which is threadedly inserted into the inside of the threaded hole 501.

[0040] Furthermore, when it is necessary to fix the position of the connecting rod 302, first align the threaded rod 502 at one end of the connecting rod 302 with the threaded hole 501 on the horizontal plate 303, and then insert the threaded rod 502 into the threaded hole 501. Thus, the connecting rod 302 is fixed to the horizontal plate 303 by fixing the position of the threaded rod 502. To strengthen the connection between the connecting rod 302 and the horizontal plate 303, the connection between the connecting rod 302 and the horizontal plate 303 is then welded.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A PEC structural steel section with a closed cross-section, characterized in that, include: Hollow steel (1); Concrete (2), which is interspersed inside the hollow steel (1); A fixing component (3) is inserted into the interior of the hollow steel (1). The fixing component (3) is used to strengthen the connection between the hollow steel (1) and the concrete (2). The fixing component (3) includes: A horizontal plate (303) is inserted into the interior of the hollow steel (1); A through hole (304) is provided on one side of the horizontal plate (303); A reinforcing component (4) is provided at the connection between the fixing component (3) and the hollow steel (1). The reinforcing component (4) is used to fix the position of the fixing component (3). The reinforcing component (4) includes through holes (403) symmetrically opened on both sides of the hollow steel (1). Bolts (401) are inserted and connected inside the through holes (403). A nut (404) is threaded on one end of the bolt (401).

2. The PEC structural steel with a closed cross-section according to claim 1, characterized in that, The horizontal plate (303) is symmetrically provided with reinforcing blocks (305) on both sides, and the reinforcing blocks (305) are fixedly connected to the inner wall of one side of the hollow steel (1).

3. A closed-section PEC structural steel according to claim 2, characterized in that, The horizontal plate (303) has connecting rods (302) symmetrically arranged on the front and back sides. One end of the connecting rod (302) is provided with a patch (301), and a connector (5) is provided at the connection between the connecting rod (302) and the horizontal plate (303).

4. A closed-section PEC structural steel according to claim 2, characterized in that, A connecting hole (402) is provided in the middle of the horizontal plate (303), and the bolt (401) is inserted into the inside of the connecting hole (402).

5. A closed-section PEC structural steel according to claim 3, characterized in that, The connector (5) includes threaded holes (501) symmetrically opened on the front and back of the horizontal plate (303). One end of the connecting rod (302) is fixedly connected to a threaded rod (502), and the threaded rod (502) is threadedly inserted into the inside of the threaded hole (501).

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