Prefabricated truss floor deck steel frame components

Abstract

This utility model discloses a prefabricated truss floor deck steel frame assembly, including a mold plate. Two sets of lapped bars are installed on the upper side of the mold plate. The lapped bars are S-shaped, extending along the length of the mold plate. The lower sides of the two lapped bars are diverged and hinged to the mold plate at their contact points. The upper sides of the two lapped bars cross each other, forming a support groove for installing the first reinforcing bar. The inflection points of the corresponding S-shaped bends of the two lapped bars are staggered, so that the intersection of the bends forms a support groove. This not only limits the upper position of the lapped bars but also forms a cross groove to support the first reinforcing bar. The contact points of the lapped bars and the contact points with the first reinforcing bar are welded sequentially. The assembly process of the reinforcing bars is simple and efficient, avoiding errors and misalignments between the reinforcing bars. The welding process does not require consideration of the misalignment of the reinforcing bars, improving construction efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of prefabricated building structures, and in particular relates to prefabricated truss floor deck steel frame components. Background Technology

[0002] Prefabricated fine aggregate concrete reinforced steel truss floor decking is an adjustment to traditional prefabricated composite slabs. It involves factory-embedded, one-time molding to fix the steel truss to the base slab into a unified whole. Produced using industrial methods, it eliminates the need for formwork during construction and supports within a certain span. Used for floor and roof slabs, it meets the requirements of prefabricated buildings. It features simple production processes, high automation, reduced labor, light weight, convenient transportation, and lower production and installation labor costs.

[0003] The prefabricated truss floor deck consists of two parts: fine aggregate concrete and a steel reinforcement frame. Factory prefabrication involves first binding or welding the steel reinforcement frame, and then pouring concrete. However, welding the steel frame requires first splicing the individual steel bars to ensure the stability of the steel frame joints before welding can proceed. If there are large errors in the steel bar joints, resulting in gaps, the welding difficulty increases. Forcibly bending the steel bars for welding can easily lead to weld detachment later. Utility Model Content

[0004] The purpose of this utility model is to provide a prefabricated truss floor deck steel frame assembly to solve the problem that the steel reinforcement frame corresponding to the prefabricated floor deck is prone to errors due to lap assembly, resulting in high welding difficulty and unstable weld points in the later stage.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] The prefabricated truss floor deck steel frame assembly includes a mold plate, which is a long strip-shaped plate structure, and two sets of lapped bars are installed on the upper side of the mold plate;

[0007] The lap bar is S-shaped and extends along the length of the mold plate. The lower sides of the lap bars on both sides are diverged and hinged to the contact point with the mold plate. The upper sides of the lap bars on both sides cross each other to form a support groove for installing the first reinforcing bar.

[0008] Furthermore, the lapped reinforcement includes a first reinforcement and a second reinforcement that are staggered from each other. The first and second reinforcements are parallel to each other and arranged in an alternating pattern. A third reinforcement, which is an inclined steel bar, is integrally connected between the first and second reinforcements. The third reinforcement is bent at a small angle to form a curved section for accommodating the second steel bar.

[0009] Furthermore, the mold plate has grooves punched at positions corresponding to the first ribs for fastening and installing the corresponding first ribs. The mold plate also has spaced weight-reducing holes in its central portion.

[0010] Furthermore, the mold plate is bent inward twice at 90 degrees on both sides to form a support section.

[0011] This utility model has the following beneficial effects: the inflection points of the lapped bars on both sides are staggered, so that the inflection points of the bends intersect to form a support groove. This not only limits the upper position of the lapped bars, but also forms a cross groove to support the first reinforcing bar. The contact points of the lapped bars and the contact points of the first reinforcing bar can be welded sequentially. The process of assembling the reinforcing bars is simple and efficient, avoiding errors and misalignments between the reinforcing bars. The welding process does not need to consider the misalignment of the reinforcing bars, thus improving construction efficiency. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0013] Figure 1 This utility model includes a disassembled and partially enlarged structural diagram of the lap joint bar and mold plate.

[0014] Figure 2 : A partially enlarged structural diagram of the lap joint bar of this utility model.

[0015] Figure 3 This utility model includes a schematic diagram of the installation of the lap joint bar and the mold plate, and a partially enlarged structural diagram.

[0016] Figure 4 : Schematic diagram of the steel structure and concrete layer structure of this utility model.

[0017] The components represented by each number in the attached diagram are listed below: mold plate 1, lap joint 2, first reinforcing bar 3, first rib 21, second rib 22, third rib 23, second reinforcing bar 4, snap groove 11, weight reduction hole 12, support part 13. Detailed Implementation

[0018] 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.

[0019] like Figures 1-4 As shown: Prefabricated truss floor deck steel frame assembly, including mold plate 1, mold plate 1 is a long strip plate structure, and two sets of lap reinforcement bars 2 are installed on the upper side of mold plate 1; the mold plate is a rectangular structure with a thickness of 2-3mm, and is made of aluminum alloy or stainless steel.

[0020] The lap bar 2 is S-shaped and extends along the length of the mold plate 1. The lower sides of the lap bars 2 on both sides are diverged. The projection of the corresponding end sides of the lap bars on both sides and the bottom mold plate is an isosceles triangle. They are hinged to the contact point with the mold plate 1. The upper sides of the lap bars 2 on both sides cross each other and form a support groove for installing the first reinforcing bar 3.

[0021] The steel frame of this building deck uses a pre-formed mold plate as the base frame, and then lap bars are installed. The lap bars are circular cross-section steel bars with a diameter of 4mm. They are bent to form a regular S-shaped extension structure. The lap bars on both sides contact the upper part of the mold plate at the inflection point of the S-shaped bend and form a support. At the same time, the contact point is a hinged structure, which allows the lap bars to be flipped according to the mold plate.

[0022] The inflection points of the S-shaped bends on both sides of the lapped bars are staggered, so that the intersection of the bends forms a support groove. This not only limits the upper position of the lapped bars, but also forms a cross groove to support the first rebar. The contact points of the lapped bars and the contact points of the first rebar are welded sequentially. The process of assembling the rebars is simple and efficient, avoiding errors and misalignments between the rebars. The welding process does not need to consider the misalignment of the rebars, thus improving construction efficiency.

[0023] like Figure 2 As shown: The lapped reinforcement 2 includes a first reinforcement 21 and a second reinforcement 22 that are staggered. The first reinforcement 21 and the second reinforcement 22 are parallel to each other and arranged in an alternating pattern. A third reinforcement 23 is integrally connected between the first reinforcement 21 and the second reinforcement 22. The third reinforcement 23 is an inclined steel bar. The first reinforcement, the second reinforcement, and the third reinforcement are all straight bars. After the lapped reinforcements on both sides cross and support each other, the corresponding third reinforcements contact each other to form a support point. The third reinforcement 23 is bent at a small angle to form a curved section to accommodate the second reinforcement 4. The first reinforcement and the second reinforcements on both sides are threaded steel bars with a cross-sectional diameter of 8mm. The curved section is used to position and fix the second reinforcement. The contact point between the second reinforcement and the curved section of the third reinforcement is welded.

[0024] like Figure 1As shown: The mold plate 1 has grooves 11 punched at positions corresponding to the first rib 21 for fastening and installing the corresponding first rib 21. When installing the lap joint, the first rib is aligned with the corresponding groove, and then the corresponding fastening plate, including the first rib, is bent, causing the lap joint to rotate and adjust due to the rotation of the first rib. The mold plate 1 has spaced weight-reducing holes 12 in its central part. This reduces the amount of mold plate material used and facilitates full concrete penetration during fine aggregate concrete pouring, increasing contact strength. The mold plate 1 has two inward 90-degree bends on both sides to form support parts 13. During pouring, the support parts raise the corresponding layer of the mold plate by 1-2 cm, ensuring the mold plate is fully embedded in the concrete layer after pouring.

[0025] These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of this utility model, so that those skilled in the art can better understand and utilize this utility model.

Claims

1. A fabricated steel truss floor deck steel skeleton assembly, characterized in that: Includes a mold plate (1), which is a long strip-shaped plate structure, and two sets of lap joints (2) are installed on the upper side of the mold plate (1); The lap bar (2) is S-shaped and extends along the length of the mold plate (1). The lower sides of the lap bars (2) are diverged and are hinged to the contact point with the mold plate (1). The upper sides of the lap bars (2) cross each other and form a support groove for installing the first reinforcing bar (3).

2. The fabricated truss floor deck steel skeleton assembly according to claim 1, wherein: The lap bar (2) includes a first bar (21) and a second bar (22) that are staggered from each other. The first bar (21) and the second bar (22) are parallel to each other and are arranged in an alternating manner. A third bar (23) is integrally connected between the first bar (21) and the second bar (22). The third bar (23) is an inclined steel bar.

3. The fabricated truss floor deck steel skeleton assembly according to claim 2, wherein: The third reinforcing bar (23) is bent at a small angle to form a curved section for accommodating the second reinforcing bar (4).

4. The fabricated truss floor deck steel skeleton assembly according to claim 2, wherein: The mold plate (1) is punched with a groove (11) at the position corresponding to the first rib (21) for fastening and installing the corresponding first rib (21).

5. The prefabricated trussed floor deck steel skeleton assembly according to claim 2, characterized in that: The mold plate (1) has weight-reducing holes (12) spaced out in the center.

6. The prefabricated trussed floor deck steel skeleton assembly according to claim 1, characterized in that: The mold plate (1) is bent inward twice at 90 degrees on both sides to form a support part (13).

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