Steel bar structure and composite floor slab prefabricated slab

Abstract

The utility model relates to the technical field of buildings, and discloses a reinforcing steel bar structure and a composite floor slab prefabricated slab, the reinforcing steel bar structure comprises a bottom plate, a plurality of fixing seats are installed on the bottom plate, limiting mechanisms are arranged on the fixing seats, transverse reinforcing steel bars are installed on the limiting mechanisms, and reinforcing steel bar keels connected with the transverse reinforcing steel bars are installed on the limiting mechanisms. A plurality of longitudinal reinforcing steel bars are mounted on the transverse reinforcing steel bars; the composite floor slab prefabricated slab comprises the steel bar structure. According to the utility model, the transverse reinforcing steel bars and the reinforcing steel bar keel can be connected together to form a whole through the plurality of fixing seats and the limiting mechanisms, and the contact area between the whole reinforcing steel bar structure and the interior of concrete is larger after the pouring is completed and the concrete is solidified, so that the shear resistance of the laminated slab prefabricated slab can be improved. In the lifting process, the steel bar keel can better resist shearing force generated by lifting, the stability of the structure is kept, structural damage caused by too large local stress can be avoided, and therefore the integrity of the structure is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of building technology, specifically to a steel reinforcement structure and a precast composite floor slab. Background Technology

[0002] Composite floor slabs are assembled monolithic floor slabs made by stacking precast slabs and cast-in-place reinforced concrete layers. Composite floor slabs have good integrity, with smooth upper and lower surfaces, facilitating finishing and decoration. They are suitable for high-rise buildings and large-span buildings with high requirements for overall rigidity. The precast slab manufacturing process typically involves laying a layer of horizontal reinforcing bars, followed by a layer of vertical reinforcing bars, and then several reinforcing joists. The horizontal and vertical reinforcing bars and the reinforcing joists are fixed together with tie bars, and finally, concrete is poured to complete the process.

[0003] However, the steel bars are round, and the horizontal and vertical steel bars and steel joists are only restrained by tie bars, which makes it easy for the horizontal and vertical steel bars and steel joists to be pulled loose, resulting in poor stability of the precast slab. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a reinforced steel structure and a precast composite floor slab, which can reduce the tendency for horizontal and vertical reinforcing bars and steel joists to be pulled apart.

[0005] On the one hand, the steel reinforcement structure provided by this utility model adopts the following technical solution:

[0006] A reinforced steel structure includes a base plate on which a plurality of fixed seats are installed. Each fixed seat is provided with a limiting mechanism. Horizontal reinforcing bars are installed on the limiting mechanism, and reinforcing joists connected to the horizontal reinforcing bars are also installed on the limiting mechanism. A plurality of longitudinal reinforcing bars are installed on the horizontal reinforcing bars.

[0007] Furthermore, the fixed base includes a support plate, and a plurality of support columns are fixedly connected to the lower surface of the support plate.

[0008] Furthermore, the limiting mechanism includes an L-shaped limiting plate fixedly connected to the support plate, with a slot on the side of the L-shaped limiting plate and a sliding groove communicating with the slot on the upper surface of the L-shaped limiting plate.

[0009] Furthermore, the front end of the L-shaped limiting plate is chamfered.

[0010] Furthermore, the reinforcing bar keel is connected to the horizontal reinforcing bars by welding or wire binding, and the longitudinal reinforcing bars are connected directly to the horizontal reinforcing bars by welding or wire binding, avoiding the reinforcing bar keel.

[0011] On the other hand, the composite precast slab provided in this application adopts the following technical solution:

[0012] A composite precast floor slab includes the steel reinforcement structure described above. By using the above technical solution, the steel reinforcement structure is laid and then concrete is poured to form a precast slab. The steel reinforcement structure has stronger integrity and better bonding with concrete, resulting in a composite precast floor slab with superior safety, shear resistance, and load-bearing capacity.

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

[0014] Multiple fixing seats and limiting mechanisms connect the horizontal reinforcing bars and the reinforcing joists together to form a whole. After the concrete has solidified, the contact area between the reinforcing structure and the concrete is larger. This increased contact area means greater friction between the reinforcing joists and the concrete, which helps improve the shear resistance of the precast composite slab. During the lifting process, the reinforcing joists can better resist the shear force generated by the lifting, maintaining the stability of the structure. They can also more effectively transfer the force to the entire precast composite slab, avoiding structural damage caused by excessive local stress, thereby enhancing the overall integrity of the structure. Attached Figure Description

[0015] Figure 1 This is a top view of the entire utility model;

[0016] Figure 2 This is a partial three-dimensional structural diagram of the present utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the fixing base and limiting mechanism of this utility model.

[0018] In the diagram: 1. Base plate; 2. Horizontal reinforcing bars; 3. Reinforcing bar joists; 4. Longitudinal reinforcing bars; 5. Support plate; 6. Support column; 7. L-shaped limiting plate; 8. Slot; 9. Slide groove; 10. Chamfer. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Example 1:

[0021] Please see Figures 1 to 3A steel reinforcement structure includes a base plate 1, on which a plurality of fixed seats are installed. A limiting mechanism is provided on the fixed seats. A horizontal row of steel bars 2 is installed on the limiting mechanism, and a steel keel 3 connected to the horizontal row of steel bars 2 is installed on the limiting mechanism. A plurality of longitudinal steel bars 4 are installed on the horizontal row of steel bars 2.

[0022] like Figures 1 to 3 As shown, in use, the steel reinforcement structure of this utility model involves placing multiple fixing seats on the base plate 1, then placing the horizontal steel reinforcement 2 on the fixing seats, and then placing the steel reinforcement keel 3 between two fixing seats. The fixing seats are moved in the same direction as the horizontal steel reinforcement 2, so that the horizontal steel reinforcement 2 is locked onto the limiting mechanism. Then, the fixing seats are moved in a direction perpendicular to the horizontal steel reinforcement 2, so that the limiting mechanism is locked onto both sides of the steel reinforcement keel 3. Finally, the longitudinal steel reinforcement 4 is placed on the horizontal steel reinforcement 2. The connection between the horizontal steel reinforcement 2 and the steel reinforcement keel 3, as well as the connection between the horizontal steel reinforcement 2 and the longitudinal steel reinforcement 4, is fixed by welding or wire binding.

[0023] like Figure 3 As shown, the fixed base includes a support plate 5, and a plurality of support columns 6 are fixedly connected to the lower surface of the support plate 5.

[0024] Specifically, the support column 6 is used to support the support plate 5, which is used to attach to the lower surface of the horizontal steel bar 2.

[0025] like Figure 3 As shown, the limiting mechanism includes an L-shaped limiting plate 7 fixedly connected to the support plate 5. The side of the L-shaped limiting plate 7 is provided with a slot 8, and the upper surface of the L-shaped limiting plate 7 is provided with a sliding groove 9 that communicates with the slot 8.

[0026] Specifically, when installing the horizontal reinforcing bars 2, the horizontal reinforcing bars 2 are inserted into the groove 9 until they are in contact with the surface of the support plate 5. At this time, the horizontal reinforcing bars 2 are also connected to the base plate 1. Then, the reinforcing bar keel 3 is placed on the horizontal reinforcing bars 2. At this time, the fixing seat is moved in the same direction as the horizontal reinforcing bars 2, so that the horizontal reinforcing bars 2 are stuck in the groove 8. Then, the fixing seat is moved in a direction perpendicular to the horizontal reinforcing bars 2, so that the L-shaped limiting plate 7 is stuck on both sides of the reinforcing bar keel 3. The upper inner wall of the L-shaped limiting plate 7 is in contact with the reinforcing bar keel 3. The horizontal reinforcing bars 2 and the reinforcing bar keel 3 can be connected by welding or wire binding.

[0027] like Figure 3 As shown, the front end of the L-shaped limiting plate 7 is provided with a chamfer 10.

[0028] Specifically, the chamfer 10 facilitates the L-shaped limiting plate 7 to be locked above the steel keel 3 during movement.

[0029] like Figure 1As shown, the steel keel 3 is connected to the horizontal steel bars 2 by welding or wire binding, and the longitudinal steel bars 4 are connected directly to the horizontal steel bars 2 by welding or wire binding, avoiding the steel keel 3.

[0030] Specifically, following the above operation, after connecting the steel joists 3 and the horizontal steel bars 2 together, the longitudinal steel bars 4 are placed on the horizontal steel bars 2. At this time, the positions of the horizontal steel bars 2, the steel joists 3 and the longitudinal steel bars 4 are easy to connect by welding or wire binding, thus forming a complete steel structure.

[0031] Example 2:

[0032] Please see Figures 1 to 3 Based on the steel reinforcement structure described in Embodiment 1, this utility model embodiment also provides a composite precast floor slab, which is made by laying the steel reinforcement structure described in Embodiment 1 and then pouring concrete to form a precast slab. The steel reinforcement structure has stronger integrity and better bonding with concrete, and the resulting composite precast floor slab has better safety, shear resistance and load-bearing capacity.

[0033] like Figures 1 to 3 As shown, in the present invention, the composite precast slab is installed by following the above-described steps, concrete is poured on the base slab 1, and after the concrete sets, the base slab 1 is removed to obtain the composite precast slab. Because the steel reinforcement structure connects the horizontal steel bars 2 and the steel joists 3 together through multiple fixing seats and limiting mechanisms to form a whole, and after the concrete has solidified, the contact area between the steel reinforcement structure and the concrete is larger. This increased contact area means increased friction between the steel joists 3 and the concrete, which helps improve the shear resistance of the composite precast slab. During the lifting process, the steel joists 3 can better resist the shear force generated by the lifting, maintaining structural stability and more effectively transferring force to the entire composite precast slab, avoiding structural damage caused by excessive local stress, thereby enhancing the overall structural integrity.

[0034] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A reinforced concrete structure, comprising a base plate (1), characterized in that: The base plate (1) is equipped with several fixed seats, and the fixed seats are provided with a limiting mechanism. The limiting mechanism is equipped with a horizontal row of steel bars (2), and the limiting mechanism is equipped with a steel bar keel (3) connected to the horizontal row of steel bars (2). The horizontal row of steel bars (2) is equipped with several vertical row of steel bars (4).

2. A reinforced concrete structure according to claim 1, characterized in that: The fixed base includes a support plate (5), and a number of support columns (6) are fixedly connected to the lower surface of the support plate (5).

3. A reinforced concrete structure according to claim 2, characterized in that: The limiting mechanism includes an L-shaped limiting plate (7) fixedly connected to the support plate (5). The side of the L-shaped limiting plate (7) is provided with a slot (8), and the upper surface of the L-shaped limiting plate (7) is provided with a sliding groove (9) that communicates with the slot (8).

4. A reinforced concrete structure according to claim 3, characterized in that: The L-shaped limiting plate (7) has a chamfer (10) at its front end.

5. A reinforced concrete structure according to claim 1, characterized in that: The steel keel (3) is connected to the horizontal steel bars (2) by welding or wire binding. The longitudinal steel bars (4) are positioned to avoid the steel keel (3) and are directly connected to the horizontal steel bars (2) by welding or wire binding.

6. A precast composite floor slab, characterized in that: include: The steel reinforcement structure as described in any one of claims 1-5.

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