Steel bar truss floor support plate for hollow floor system

Abstract

The utility model discloses a steel bar truss floor support plate for a hollow floor system, which comprises a bottom plate and a plurality of triangular steel bar trusses distributed on the bottom plate at intervals, each triangular steel bar truss comprises a first steel bar truss and a second steel bar truss which are alternately arranged, and the height of each first steel bar truss is larger than that of each second steel bar truss. According to the utility model, the large and small trusses are alternately arranged, so that not only can the problem of conflict between the space sizes of the mandrels and the trusses be solved, but also the stress problem of the trusses can be solved. The small trusses bear a small part of structural stress and have the core mold supporting function, and the large trusses bear a large part of structural stress and have the core mold fixing function.

Description

TECHNICAL FIELD

[0001] The utility model relates to building structure technical field especially relates to a steel bar truss floor support plate for hollow floor. BACKGROUND

[0002] In the prior art of engineering technical field, steel bar truss floor support plate is widely used in fabricated engineering projects by industrialized production and assembly construction, and its technical characteristics of formwork-free and less support can reduce formwork engineering and scaffold engineering in the construction process, and it is convenient to install, is a kind of fabricated engineering technology commonly used in the current engineering.

[0003] But it is generally used in solid floor, and the steel bar truss floor support plate has small steel bar spacing, and the core mold (or other core mold) used in hollow floor is generally large in size, in addition, hollow floor is thick and light in weight, and is controlled by the thickness of bottom plate, so that simply composite core mold on steel bar truss cannot meet the use requirement. UTILITY MODEL CONTENT

[0004] In view of the above technical problems of prior art, the utility model solves the problem of difficulty in composite core mold of prior art steel bar truss floor support plate.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A steel bar truss floor support plate for hollow floor, comprising a bottom plate and a plurality of triangular steel bar trusses spaced on the bottom plate, the triangular steel bar truss comprising first steel bar trusses and second steel bar trusses arranged alternately, and the height of the first steel bar truss is greater than the height of the second steel bar truss.

[0007] As an optimization, a core mold is provided between adjacent first steel bar trusses, the core mold is connected to the first steel bar trusses on both sides thereof, and the side close to the bottom plate is supported on the second steel bar truss.

[0008] As an optimization, the core mold is a solid structure or a hollow structure formed by upper core mold and lower core mold connected to each other.

[0009] As an optimization, a lap steel bar is provided in the core mold, the two ends of the lap steel bar are respectively connected to the top chord of the first steel bar truss on both sides thereof.

[0010] As an optimization, a lug is provided on both sides of the core mold, and the lug is connected to the top chord of the first steel bar truss on the corresponding side.

[0011] As an optimization, a bottom plate steel bar is further provided between the core mold and the bottom plate.

[0012] As optimization, the bottom plate is a metal plate, a cement-based plate, a calcium silicate plate or other lightweight material plate.

[0013] As optimization, the bottom plate is fixedly connected with the triangular steel bar truss through a connecting piece, wherein the connecting piece comprises a steel structural member, a plastic frame or a steel-plastic combined member.

[0014] Compared with the prior art, the present application has the following beneficial effects: Content of the utility model

[0016] 1. The hollow floor industrialized production and assembly construction means are realized, can be applied to the fabricated building engineering, compared with the cast-in-place hollow floor, can avoid the formwork engineering and the scaffold engineering, reduces the construction cost, improves the construction efficiency.

[0017] 2. The large and small trusses are alternately arranged, which can solve the problems of the size conflict between the core mold and the truss and the truss stress, the small truss bears a small part of the structural stress and the core mold support problem, the large truss bears a large part of the structural stress and the function of fixing the core mold, the functions of the large and small trusses are fully utilized, the core mold does not need to be fixed in the traditional way and the anti-floating measure, the construction efficiency is improved, and the construction cost is reduced.

[0018] 3. The small truss accurately controls the height of the bottom concrete, reduces the difficulty of concealed engineering acceptance, and improves the engineering quality, BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 is a structural schematic view of the present utility model;

[0020] Fig. 2 is a structural schematic view of the present utility model after installing the core mold;

[0021] In the figure, 1 is a bottom plate, 2 is a first steel bar truss, 3 is a second steel bar truss, 4 is a core mold, 5 is a plate bottom steel bar, and 6 is a bracket. DETAILED DESCRIPTION

[0022] The present utility model will be further described in detail in combination with the drawings.

[0023] In specific implementation: see Figs. 1-2 ,

[0024] In order to solve the problems in the prior art, the utility model provides a steel bar truss floor support plate for a hollow floor, which comprises a bottom plate 1 and a plurality of triangular steel bar trusses which are distributed on the bottom plate 1, the triangular steel bar truss comprises one upper chord and two lower chords which are distributed in a triangular shape, and a web bar is arranged between the upper chord and the lower chord. In the embodiment, the triangular steel bar truss comprises first steel bar trusses 2 (large trusses) and second steel bar trusses 3 (small trusses) which are arranged alternately, the height of the first steel bar trusses 2 is greater than the height of the second steel bar trusses 3, and spaces in which core molds 4 can be arranged are formed above the second steel bar trusses 3 between adjacent first steel bar trusses 2. The floor support plate structure is easy to produce industrially, simple in structure, and the core mold 4 is easy to assemble on site, thereby improving construction efficiency.

[0025] In actual application, the core mold 4 can also be assembled in a factory, specifically, the core mold 4 is arranged between adjacent first steel bar trusses 2, the core mold 4 is connected to the first steel bar trusses 2 on both sides thereof respectively, and the side of the core mold 4 close to the bottom plate 1 is supported on the second steel bar truss 3.

[0026] Specifically, the core mold 4 is a solid structure or a hollow structure formed by an upper core mold and a lower core mold which are buckled to each other. Lap steels which penetrate through opposite sides of the core mold 4 are arranged in the core mold 4, and the two ends of the lap steels are respectively lapped and fixed to the upper chords of the first steel bar trusses 2 on both sides thereof, so as to solve the support problem of the core mold 4 and the anti-floating problem in the pouring process, and the structure is simple and convenient for construction.

[0027] A bottom plate steel bar 5 is also arranged between the core mold and the bottom plate 1, and a hollow floor support plate is formed after pouring.

[0028] The bottom plate 1 can be a metal plate, a cement-based plate, a calcium silicate plate or other light material plate. The bottom plate 1 is fixedly connected to the triangular steel bar truss through a connecting piece, wherein the connecting piece comprises a steel structure member, a plastic frame or a steel-plastic combined member.

[0029] In the second embodiment, the difference from the first embodiment is that a lug 6 is arranged on each side of the core mold, and the lug 6 is connected to the upper chord of the first steel bar truss 2 on the corresponding side. Specifically, the lug 6 comprises a body, a U-shaped groove is formed in the end of the body away from the core mold, thereby forming a U-shaped connecting part, and the body is clamped to the upper chord of the first steel bar truss 2 through the U-shaped groove, so that the upper chord of the first steel bar truss 2 is clamped into the U-shaped groove, and the support and anti-floating problems of the core mold 4 are solved, the structure is simple and convenient to process, and easy to assemble.

[0030] In conclusion, the hollow floor industrialized production and assembly construction are realized, can be applied to the fabricated building engineering, and through the alternate arrangement of the large and small trusses, the spacing size conflict between the core mold and the truss can be solved, and the stress problem of the truss can also be solved.

[0031] Although the embodiments of the utility model have been shown and described, for those skilled in the art, various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and bases of the utility model, the scope of the utility model is defined by the appended claims and their equivalents, therefore the embodiments of the utility model are only for the illustrative examples of the utility model, the embodiments of the utility model do not constitute the limitation of the utility model no matter from which point of view.

Claims

1. A steel bar truss floor deck for a hollow floor, comprising a base plate and a plurality of triangular steel bar trusses spaced apart on the base plate, characterized in that, The triangular steel bar truss comprises first steel bar trusses and second steel bar trusses arranged alternately, and the height of the first steel bar truss is greater than the height of the second steel bar truss.

2. The steel bar truss floor deck for a hollow floor system according to claim 1, characterized in that, A core mold is arranged between adjacent first steel bar trusses, and the core mold is connected to the first steel bar trusses on both sides thereof and supported on the second steel bar truss on the side close to the bottom plate.

3. The steel trussed floor deck for a hollow floor system according to claim 2, wherein The core mold is of a solid structure or a hollow structure formed by an upper core mold and a lower core mold connected to each other.

4. The steel bar truss floor deck for a hollow floor system according to claim 2 or 3, characterized in that, Lap steel bars are arranged in the core mold and extend through opposite sides of the core mold, and the two ends of the lap steel bars are respectively lapped with the top chord of the first steel bar truss on both sides thereof.

5. The steel bar truss floor deck for a hollow floor system according to claim 2 or 3, characterized in that, A lug is arranged on each side of the core mold and connected to the top chord of the first steel bar truss on the corresponding side.

6. The steel trussed floor deck for a hollow floor system according to claim 1, wherein A bottom plate steel bar is further arranged between the core mold and the bottom plate.

7. The steel trussed floor deck for a hollow floor system according to claim 1, wherein The bottom plate is a metal plate, a cement-based plate or a calcium silicate plate.

8. The steel trussed floor deck for a hollow floor system according to claim 1, wherein The bottom plate is fixedly connected to the triangular steel bar truss by a connecting piece, wherein the connecting piece comprises a steel structural member, a plastic frame or a steel-plastic combined member.

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