Steel bar truss cable-stayed floor support plate

Abstract

The utility model discloses a steel bar truss cable-stayed floor support plate, including the bottom die, a plurality of parallel steel bar trusses are arranged at intervals on the bottom die, longitudinal reinforcement is equipped between two adjacent steel bar trusses, a plurality of cable-stayed steel bars are equipped between the steel bar truss and longitudinal reinforcement, the utility model discloses a cable-stayed steel bar is set up, makes steel bar truss spacing become big, whether it is the steel bar of vertical direction's intercalation construction and pipeline reservation pre -buried construction, has reduced the difficulty, has improved construction efficiency. The steel bar truss spacing increases, reduces the waste of top chord and web member in the use stage, and simultaneously adjusts the steel bar quantity through the need of stress steel bar, does not cause the over -allocation situation of the bottom chord of traditional steel bar truss floor support plate, can reduce the material consumption greatly, and through setting up cable-stayed steel bar, can reduce the support spacing of bottom plate, does not cause the increase of bottom plate material because of the increase of steel bar truss spacing.

Description

Technical Field

[0001] This utility model relates to the field of building structure technology, and in particular to a steel truss inclined floor deck. Background Technology

[0002] In the existing engineering technology field, steel truss floor decking is a commonly used prefabricated floor slab technology, including metal bottom formwork steel truss floor decking, used in steel structures; as well as bottom formwork-free steel truss floor decking and fine stone concrete steel truss floor decking, used in steel structures and concrete buildings. Due to its steel truss structure, it can realize floor slabs without formwork and with less support, and is widely used in prefabricated buildings such as offices, schools, and residences.

[0003] Due to the stress requirements of the base slab, the spacing between steel trusses in the currently used steel truss floor slab is 200mm, resulting in a large number of steel trusses. This leads to serious waste of bottom chord reinforcement, web reinforcement, and bottom chord reinforcement. In particular, the bottom chord reinforcement, which is the load-bearing reinforcement during the service stage of the floor slab, is often over-specified by 100%.

[0004] Furthermore, with a steel truss spacing of 200mm, the limited space makes pipeline layout extremely difficult, as does the placement of steel bars perpendicular to the truss direction, significantly impacting construction efficiency. Therefore, considering the load-bearing requirements during construction, the steel truss spacing can be much higher than 200mm. However, the base slab also bears concrete and construction loads during construction. Simply increasing the steel truss spacing would result in increased material usage and waste. Therefore, while increasing the steel truss spacing, it is also necessary to add structural elements to ensure the base slab's load-bearing capacity. Utility Model Content

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a steel truss inclined floor deck, which solves the problems of small steel truss spacing, large steel consumption, and inconvenience in laying pipelines or transverse steel bars due to small space during construction in the existing steel truss floor deck that does not require dismantling of bottom formwork.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A steel truss inclined-stayed floor deck includes a bottom formwork with multiple parallel steel trusses spaced apart on the bottom formwork. At least one longitudinal steel bar parallel to the steel truss is provided between two adjacent steel trusses, and there is a gap between the longitudinal steel bar and the steel truss, so that the steel trusses and the longitudinal steel bar are alternately distributed. Several inclined steel bars are provided between the steel trusses and the longitudinal steel bars. One end of the inclined steel bar is connected to the longitudinal steel bar, and the other end is connected to the end of the steel truss away from the bottom formwork. The inclined steel bars are spaced apart along the length direction of the steel truss.

[0007] As an optimization, the steel truss includes one top chord and two bottom chords arranged in a triangular pattern, with web reinforcement between the top and bottom chords. The bottom chords or web reinforcement are fixedly connected to the bottom formwork, wherein the diagonal tie bars are connected to the top chord.

[0008] As an optimization, two longitudinal steel bars are spaced apart between adjacent steel trusses, and each steel truss is connected to its adjacent longitudinal steel bar by diagonal bracing.

[0009] As an optimization, the longitudinal reinforcing bars are fixed to the bottom formwork by connectors.

[0010] As an optimization, the longitudinal reinforcement bars and the bottom chord reinforcement bars are on the same horizontal plane.

[0011] As an optimization, the diagonal bracing bars on both sides of the steel truss are located in the same plane in the direction perpendicular to the steel truss.

[0012] Compared with the prior art, this application has the following advantages: This utility model, 1. The increased spacing of the steel trusses reduces the difficulty and improves the construction efficiency, both in the vertical reinforcement insertion construction and in the construction of pipeline pre-embedding.

[0013] 2. Increased spacing between steel trusses reduces waste of top chord and web reinforcement during use. At the same time, the amount of steel reinforcement can be adjusted according to the needs of the stressed reinforcement, avoiding over-reinforcement of the bottom chord in traditional steel truss floor slabs, thus significantly reducing material usage.

[0014] 3. By setting diagonal bracing bars, the support spacing of the base slab can be reduced, and the material of the base slab will not increase due to the increase in the spacing of the steel truss. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; In the diagram, 1 is the bottom formwork, 2 is the steel truss, 3 is the longitudinal reinforcement, 4 is the top chord reinforcement, 5 is the bottom chord reinforcement, 6 is the web reinforcement, and 7 is the diagonal tie reinforcement. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings.

[0017] For specific implementation: see [link / reference] Figure 1 , An embodiment of a steel truss inclined-stayed floor slab includes a bottom formwork 1. The bottom formwork 1 is a non-metallic formwork, such as calcium silicate board or OSB board, but metal plates can also be used. Multiple parallel steel trusses 2 are spaced apart on the bottom formwork 1. In this embodiment, the steel trusses 2 are triangular trusses, including one upper chord 4 and two lower chord 5 arranged in a triangular pattern. Web members 6 are provided between the upper chord 4 and the lower chord 5. For non-metallic bottom formwork 1, the lower chord 5 is fixed to the bottom formwork 1 by connectors. For metallic bottom formwork 1, the lower chord 5 or the web members 6 are directly welded to the bottom formwork 1.

[0018] At least one longitudinal steel bar 3 parallel to the steel truss 2 is provided between two adjacent steel trusses 2. The longitudinal steel bar 3 is fixed to the bottom formwork 1 by a connector, and there is a gap between the longitudinal steel bar 3 and the steel truss 2, so that the steel truss 2 and the longitudinal steel bar 3 are alternately distributed. The connector is a conventional connector, and its specific structure will not be described in detail. Specifically, in this embodiment, two longitudinal steel bars 3 are spaced apart between adjacent steel trusses 2. Several diagonal steel bars 7 are provided between the steel truss 2 and the longitudinal steel bars 3. One end of the diagonal steel bar 7 is connected to the longitudinal steel bar 3, and the other end is connected to the end of the steel truss 2 away from the bottom formwork 1. The diagonal steel bars 7 are distributed at intervals along the length direction of the steel truss 2. The diagonal steel bars 7 are connected to the top chord 4 of the steel truss 2, and each steel truss 2 is connected to its adjacent longitudinal steel bar 3 by the diagonal steel bars 7. The diagonal steel bars 7 on both sides of the steel truss 2 are staggered or the diagonal steel bars 7 on both sides of the steel truss 2 are located in the same plane in the direction perpendicular to the steel truss 2.

[0019] To facilitate the installation of pipelines or transverse reinforcing bars, the longitudinal reinforcing bars 3 and the bottom chord reinforcing bars 5 are on the same horizontal plane. The diameter and other parameters of the longitudinal reinforcing bars 3 can be adjusted according to the stress characteristics and strength requirements of the floor decking, as well as the overall reinforcement configuration.

[0020] In summary, this utility model, by incorporating diagonal bracing, increases the spacing of the steel truss, reducing the difficulty and improving construction efficiency for both vertical steel reinforcement insertion and pipeline pre-installation. The increased truss spacing reduces waste of top chord and web reinforcement during use. Furthermore, by adjusting the amount of reinforcing steel as needed, it avoids the over-reinforcement of the bottom chord in traditional steel truss floor slabs, significantly reducing material usage. Additionally, the diagonal bracing reduces the support spacing of the base slab, preventing an increase in base slab material due to the increased truss spacing.

[0021] Although embodiments of the present invention have been shown and described, those skilled in the art can make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and basis of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. Therefore, the embodiments of the present invention are merely illustrative examples and do not constitute a limitation on the present invention in any way.

Claims

1. A steel truss inclined-stayed floor deck, comprising a bottom formwork, on which a plurality of parallel steel trusses are spaced apart, characterized in that, At least one longitudinal steel bar parallel to the steel truss is provided between two adjacent steel trusses, and there is a gap between the longitudinal steel bar and the steel truss; several diagonal steel bars are provided between the steel truss and the longitudinal steel bar, one end of the diagonal steel bar is connected to the longitudinal steel bar, and the other end is connected to the end of the steel truss away from the bottom formwork, and the diagonal steel bars are distributed at intervals along the length direction of the steel truss.

2. The steel truss inclined-stayed floor decking according to claim 1, characterized in that, The steel truss includes one top chord and two bottom chords arranged in a triangular pattern, with web reinforcement between the top and bottom chords. The bottom chords or web reinforcements are fixedly connected to the bottom formwork, and the diagonal tie bars are connected to the top chord.

3. A steel truss inclined-stayed floor deck slab according to claim 2, characterized in that, Several longitudinal steel bars are spaced apart between adjacent steel trusses, and each steel truss is connected to its adjacent longitudinal steel bars by diagonal bracing.

4. A steel truss inclined-stayed floor deck slab according to claim 2, characterized in that, The longitudinal reinforcing bars are fixed to the bottom formwork by connectors.

5. A steel truss inclined-stayed floor deck slab according to claim 2, characterized in that, The longitudinal reinforcement bars and the bottom chord reinforcement bars are on the same horizontal plane.

6. A steel truss inclined-stayed floor deck slab according to claim 1, characterized in that, The diagonal bracing bars on both sides of the steel truss are located in the same plane in the direction perpendicular to the steel truss.

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