Assembly type steel bar truss floor support plate support

Abstract

The utility model discloses an assembly type steel bar truss floor bearing plate support which comprises an upper chord steel bar, a lower chord steel bar and web member steel bars. The two groups of lower chord steel bars and the upper chord steel bars jointly form a triangular structure; the web member reinforcements are positioned on two sides of the upper chord reinforcements for supporting the lower chord reinforcements; the auxiliary supporting structure comprises a longitudinal support and a horizontal support which are welded; the two sets of support assemblies are arranged, and each support assembly comprises a transverse support located between the two lower chord steel bars and a longitudinal support located between the transverse support and the upper chord steel bars. By means of the longitudinal supports and the transverse supports, the distance between the upper chord steel bars and the lower chord steel bars can be relatively fixed, so that the situation that when the upper chord steel bars and the lower chord steel bars are installed, due to bending errors of web member steel bars, overall positioning is not accurate, and stress is not uniform is avoided, and the overall structural strength is improved.

Description

Technical Field

[0001] This utility model relates to the field of building components technology, specifically to prefabricated steel truss floor deck support. Background Technology

[0002] Prefabricated steel truss floor decking is a new type of building component with advantages such as high construction efficiency, reliable quality, and high degree of industrialization. It is widely used in prefabricated buildings. Simply put, steel truss floor decking is a combination of steel truss and load-bearing formwork prefabricated in the factory with bottom formwork.

[0003] A steel truss consists of top chord reinforcement, bottom chord reinforcement, and web reinforcement, with the top and bottom chord reinforcement welded and fixed together by the web reinforcement. In routine reinforced concrete construction, workers often struggle to control the spacing between the upper and lower rows of reinforcing bars. Even slight differences at the bends of the web reinforcement can affect the position of the top and bottom chord reinforcement. The lack of tensioning devices leads to uneven stress distribution, compromising overall structural safety and indicating room for improvement. Utility Model Content

[0004] This invention aims to solve the aforementioned technical problems in the prior art, such as uneven stress among multiple reinforcing bars and low individual structural safety, by providing a prefabricated steel truss floor deck support.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a prefabricated steel truss floor deck support, including upper chord steel bars, lower chord steel bars, and web steel bars; the lower chord steel bars are provided in two sets, forming a triangular structure together with the upper chord steel bars; the web steel bars are located on both sides of the upper chord steel bars to support the lower chord steel bars; it also includes:

[0006] Auxiliary support structure; including welded longitudinal supports and horizontal supports;

[0007] The support assembly comprises two sets: a transverse support located between two lower chord reinforcing bars, and a longitudinal support located between the transverse support and the upper chord reinforcing bar. The transverse support includes a support rod, with clamping seats elastically provided at both ends. An arc-shaped compression plate is provided within the clamping seat, which can move up and down and can clamp the outer side of the lower chord reinforcing bar. The longitudinal support includes a top seat, which is telescopically mounted on the support rod. The top seat is provided with an arc-shaped groove capable of accommodating the upper chord reinforcing bar.

[0008] Furthermore, the longitudinal supports and horizontal supports are all steel bars with a diameter greater than that of the upper chord steel bars and the lower chord steel bars.

[0009] Furthermore, there are two longitudinal supports, the upper ends of which are welded to both ends of the upper chord reinforcement; there are two horizontal supports, which are perpendicular to the longitudinal supports, and their two ends are welded to the ends of the lower chord reinforcement.

[0010] Furthermore, the web reinforcement bars are U-shaped, with their upper ends welded to the upper chord reinforcement bars and their lower ends welded to the lower chord reinforcement bars; the lower ends of the web reinforcement bars are all bent outwards, appearing as right angles when viewed from the side.

[0011] Furthermore, the support rod is provided with symmetrical fixing plates on its outer side, and a spring is provided between the fixing plates and the clamping seat and on the outer side of the support rod; the support rod extends into the clamping seat and is provided with a limiting plate;

[0012] A screw is threadedly connected to the clamping seat, and the lower end of the screw extends into the clamping seat and is rotatably connected to the arc-shaped extrusion plate.

[0013] Furthermore, a circular groove is provided rotatably under the top seat, a bearing is provided in the circular groove, and a threaded rod is connected in the bearing;

[0014] The lower end of the threaded rod is threadedly connected to a hollow cylinder, which is fixedly connected to the support rod.

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] By using longitudinal and transverse supports, the spacing between the top and bottom chord reinforcing bars can be relatively fixed, thereby avoiding inaccurate overall positioning and uneven stress caused by bending errors of the web reinforcement during installation, thus improving the overall structural strength. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the batch installation state of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the support assembly structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the bottom structure of the top seat of this utility model.

[0021] As shown in the figure: 1. Top chord reinforcement, 2. Bottom chord reinforcement, 3. Longitudinal support, 4. Horizontal support, 5. Support rod, 6. Web reinforcement, 7. Clamping seat, 8. Arc-shaped extrusion plate, 9. Top seat, 10. Arc-shaped groove, 11. Fixing plate, 12. Screw rod, 13. Threaded rod, 14. Hollow cylinder. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] Example 1, in conjunction with Appendix Figure 1 , 2The prefabricated steel truss floor deck support includes an upper chord steel bar 1, a lower chord steel bar 2, and web steel bars 6; the lower chord steel bar 2 has two sets, which together with the upper chord steel bar 1 form a triangular structure;

[0024] The web reinforcement 6 is located on both sides of the upper chord reinforcement 1 to support the lower chord reinforcement 2; the web reinforcement 6 is U-shaped, and its upper end is welded to the upper chord reinforcement 1, and its lower end is welded to the lower chord reinforcement 2; the lower end of the web reinforcement 6 is bent outward, and it is right angled when viewed from the side, which can increase the bottom area of ​​the web reinforcement 6, thereby increasing the bonding area with the bottom formwork;

[0025] Combined with appendix Figure 1 , 2 It also includes auxiliary support structures; including welded longitudinal supports 3 and horizontal supports 4; both longitudinal supports 3 and horizontal supports 4 are steel bars with a diameter larger than that of the upper chord steel bar 1 and the lower chord steel bar 2, and the increased diameter can improve the bearing capacity and support performance; there are two longitudinal supports 3, and their upper ends are welded to both ends of the upper chord steel bar 1 respectively; there are two horizontal supports 4 and they are perpendicular to the longitudinal supports 3, and their two ends are welded to the ends of the lower chord steel bar 2 respectively;

[0026] Combined with appendix Figure 2 , 3 4. It also includes a support assembly; there are two sets, including a transverse support located between the two lower chord bars, and a longitudinal support located between the transverse support and the upper chord bar 1.

[0027] Specifically, the transverse support includes a support rod 5, with clamping seats 7 elastically provided at both ends of the support rod 5; an arc-shaped compression plate 8 is provided inside the clamping seat 7, which can move up and down, and the clamping seat 7 can clamp on the outside of the lower chord steel bar 2; a symmetrical fixing plate 11 is provided on the outside of the support rod 5, and a spring is provided between the fixing plate 11 and the clamping seat 7 and on the outside of the support rod 5; a limiting plate is provided as the support rod 5 extends into the clamping seat 7; thus, when it is necessary to fix the clamping seat 7 between two lower chord steel bars, the clamping seats 7 can be pushed in opposite directions to leave space for the lower chord steel bar 2 to enter the clamping seat 7;

[0028] In addition, a screw 12 is threadedly connected to the clamping seat 7. The lower end of the screw 12 extends into the clamping seat 7 and is rotatably connected to the arc-shaped extrusion plate 8. Thus, rotating the screw 12 can drive the arc-shaped extrusion plate 8 to move downward until the lower chord steel bar 2 is squeezed tightly.

[0029] The longitudinal support includes a top seat 9, which is telescopically mounted on the support rod 5. The top seat 9 has an arc-shaped groove 10 that can accommodate the upper chord steel bar 1. Specifically, the bottom of the top seat 9 has a rotatable circular groove with a bearing inside. A threaded rod 13 is connected inside the bearing, and a hollow cylinder 14 is threaded to the lower end of the threaded rod 13. The hollow cylinder 14 is fixedly connected to the support rod 5. Based on the above, the threaded rod 13 can rotate relative to the top seat 9, so that the height can still be adjusted when the top seat 9 is already outside the upper chord steel bar 1. It should be noted that the above operation is carried out on the basis that the upper chord steel bar and the lower chord steel bar have been initially positioned based on the longitudinal support 3 and the horizontal support 4. If the above support assembly is used before the initial positioning, the uniform length and height can be directly adjusted.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A prefabricated steel truss floor slab support, comprising upper chord reinforcement (1), lower chord reinforcement (2), and web reinforcement (6); the lower chord reinforcement (2) consists of two sets, forming a triangular structure together with the upper chord reinforcement (1); the web reinforcement (6) is located on both sides of the upper chord reinforcement (1) to support the lower chord reinforcement (2); characterized in that: Also includes: Auxiliary support structure; including welded longitudinal supports (3) and horizontal supports (4); The support assembly consists of two sets, including a transverse support located between two lower chord reinforcing bars and a longitudinal support located between the transverse support and the upper chord reinforcing bar (1); the transverse support includes a support rod (5), and the two ends of the support rod (5) are elastically provided with clamping seats (7); the clamping seat (7) is provided with an arc-shaped extrusion plate (8) that moves up and down, and the clamping seat (7) can clamp on the outside of the lower chord reinforcing bar (2); the longitudinal support includes a top seat (9), which is telescopically installed on the support rod (5); the top seat (9) is provided with an arc-shaped groove (10) that can accommodate the upper chord reinforcing bar (1).

2. The prefabricated steel truss floor deck support according to claim 1, characterized in that: The longitudinal support (3) and the horizontal support (4) are both steel bars with a diameter greater than that of the upper chord steel bar (1) and the lower chord steel bar (2).

3. The prefabricated steel truss floor deck support according to claim 1, characterized in that: There are two longitudinal supports (3), and their upper ends are welded to both ends of the upper chord steel bar (1); there are two horizontal supports (4) that are perpendicular to the longitudinal supports (3), and their two ends are welded to the ends of the lower chord steel bar (2).

4. The prefabricated steel truss floor deck support according to claim 1, characterized in that: The web reinforcement (6) is U-shaped, with its upper end welded to the upper chord reinforcement (1) and its lower end welded to the lower chord reinforcement (2); the lower end of the web reinforcement (6) is bent outward and appears as a right angle when viewed from the side.

5. The prefabricated steel truss floor deck support according to claim 1, characterized in that: The support rod (5) is provided with symmetrical fixing plates (11) on the outside, and a spring is provided between the fixing plate (11) and the clamping seat (7) and on the outside of the support rod (5); the support rod (5) extends into the clamping seat (7) and is provided with a limiting plate; A screw (12) is threaded onto the clamping seat (7), and the lower end of the screw (12) extends into the clamping seat (7) and is rotatably connected to the arc-shaped extrusion plate (8).

6. The prefabricated steel truss floor deck support according to claim 5, characterized in that: The top seat (9) is provided with a circular groove on its underside, and a bearing is provided in the circular groove. A threaded rod (13) is connected in the bearing. The lower end of the threaded rod (13) is threadedly connected to a hollow cylinder (14), which is fixedly connected to the support rod (5).

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