Steel bar truss floor support plate and floor slab
By using UHPC ultra-high strength concrete layer and dense hole steel plate in the steel truss bearing plate, the problem of easy deformation and damage in the steel truss bearing plate during transportation and construction and the galvanized steel plate bottom mold cannot be directly plastered and decorated, achieving the effect of improving the performance and construction efficiency of the floor bearing plate.
Patent Information
- Application Number
- CN202421221968.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The steel bar truss bearing plates are prone to deformation and damage during transportation and construction, and the galvanized steel plate bottom mold cannot be directly plastered and decorated, and the application range is limited.
UHPC ultra-high strength concrete layer and dense hole steel plate are used, and the steel bar truss is fixed on the steel plate. The concrete layer wraps the steel plate as a construction formwork and is used directly as a floor slab. Putty can be directly scraped after construction is completed.
It improves the performance and construction efficiency of the floor bearing plate, solves deformation and damage and decoration problems, realizes direct plastering and decoration, and expands the scope of application.
Smart Images
Figure CN222649175U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of floor decking, and particularly relates to a steel bar truss floor decking and a floor slab. Background Art
[0002] The development of prefabricated floor slab components is also becoming more mature. A large number of prefabricated floor slabs have been adopted in actual projects, realizing prefabrication and assembly to a certain extent. As an important component in the structural system, the floor slab has gone through three generations of development. Including cast-in-place reinforced concrete floor slabs, corrugated steel plate concrete composite floor slabs and reinforced truss floor slabs.
[0003] The advantages of cast-in-place reinforced concrete floor slabs are that they have strong integrity, the plane shape can be changed arbitrarily with the formwork, good waterproof performance, and outstanding earthquake resistance. However, this floor slab requires on-site formwork, steel bar tying, concrete pouring and curing, and demolding after the concrete strength reaches a certain standard, which consumes a lot of manpower, material resources and time costs.
[0004] The advantages of the corrugated steel plate concrete composite floor are that if it is a closed corrugated steel plate composite floor, it can completely replace the tensile steel bars at the bottom of the slab, saving costs and making the bottom of the slab flat; and no formwork is required, which can shorten the construction period and save formwork construction costs. However, the floor still requires a lot of steel plate tying work on site, and anti-corrosion and fire prevention measures need to be added to the corrugated steel plate. Support needs to be erected when the span is large.
[0005] The advantages of steel truss floor decking are that its fire resistance and corrosion resistance are better than those of corrugated steel plate composite floor decking; in terms of economic cost, the prefabricated part is standardized in the factory, which improves production efficiency; steel truss floor decking does not require formwork, and multiple floor slabs can be poured at the same time, which significantly shortens the construction period. The disadvantages of this type of floor slab are that the bottom formwork has low rigidity and is prone to deformation and damage during transportation and hoisting; the galvanized steel plate bottom formwork cannot be directly plastered and decorated, and requires ceiling treatment, which limits the scope of application; the unsupported steel truss floor decking has a small span and insufficient rigidity.
[0006] For steel truss floor decking, the galvanized steel plate bottom formwork cannot be directly plastered and decorated, and needs to be treated with a suspended ceiling, which limits the scope of application. The thickness of the steel truss composite plate is too large, which is easy to be damaged during transportation, takes a long time to maintain, and is difficult to move during on-site construction. Utility Model Content
[0007] The utility model aims to provide a steel bar truss floor deck and a floor slab to solve the above problems.
[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0009] A steel bar truss floor deck comprises a steel plate, a steel bar truss and a concrete layer; a plurality of steel bar trusses are fixedly arranged on the steel plate, and concrete layers are attached to the upper and lower surfaces of the steel plate; the steel plate is a dense-pore steel plate.
[0010] Furthermore, a plurality of steel bar trusses are welded in parallel at equal intervals on the steel plate.
[0011] Furthermore, the concrete layer is a UHPC ultra-high strength concrete layer.
[0012] Furthermore, the UHPC ultra-high strength concrete layer is poured on the steel plate to form upper and lower concrete layers wrapping the steel plate.
[0013] Furthermore, a plurality of connecting steel bars are fixed on the steel bar truss perpendicularly to the steel bar truss.
[0014] Furthermore, the ends of the connecting steel bars are welded to the floor slab reinforcement.
[0015] Furthermore, the connecting steel bars are fixed inside the steel bar trusses.
[0016] Furthermore, steel bars and pipelines are arranged in the openings of the dense-pore steel plate.
[0017] Furthermore, concrete is poured on the outer side of the steel truss floor deck.
[0018] A floor slab comprises a steel bar truss floor slab, wherein a plurality of steel bar truss floor slabs are spliced to form the floor slab.
[0019] Compared with the prior art, the utility model has the following technical effects:
[0020] The utility model provides a UHPC-dense hole corrugated steel plate reinforced truss floor deck, which is mainly characterized by the opening of the corrugated steel plate, which can be used to arrange the floor slab reinforcement and pipelines on site; the UHPC-dense hole corrugated steel plate reinforced truss floor deck is directly used as a construction template for pouring concrete, and putty can be directly scraped after the construction is completed, without the need for a suspended ceiling, thereby increasing the floor clearance; the factory prefabricated bottom plate UHPC bottom plate has guaranteed product quality, is not damaged during transportation, and can be directly stacked, thereby improving transportation and construction efficiency. With a lightweight design, workers can move the floor deck for easy construction. The processing technology is mature.
[0021] 1. The holes in the corrugated steel plate can be used to arrange steel bars and pipelines on site, as well as to pour high-performance concrete on the bottom plate, thereby reducing the deflection of the floor deck, improving the performance of the floor deck, and solving the problem of insufficient rigidity of the unsupported steel truss floor deck.
[0022] 2. UHPC-dense hole corrugated steel plate steel truss floor deck is directly used as the construction template for pouring concrete. After the construction is completed, putty can be directly scraped without the need for a suspended ceiling, which increases the floor clearance and solves the ceiling problem of the steel truss floor deck.
[0023] 3. The factory-prefabricated UHPC base plate has guaranteed product quality, is not damaged during transportation, and can be stacked directly, which improves transportation and construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a three-dimensional stereogram of the utility model.
[0025] Figure 2 It is a front view of the utility model.
[0026] Figure 3 It is a side view of the utility model.
[0027] Figure 4 This is an assembly process diagram of the utility model.
[0028] Figure 5 It is a cross-sectional view of the utility model.
[0029] in:
[0030] Steel plate 1, steel truss 2, concrete layer 3, floor reinforcement 4. DETAILED DESCRIPTION
[0031] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0034] Example 1, please refer to Figure 1 The utility model provides a steel truss floor deck, including a steel plate 1, a steel truss 2 and a concrete layer 3; a plurality of steel trusses 2 are fixedly arranged on the steel plate 1, and the concrete layer 3 is attached to the upper and lower surfaces of the steel plate 1; the steel plate 1 is a dense-pore steel plate.
[0035] The corrugated steel sheets have holes that allow for the arrangement of floor reinforcement and pipelines on site.
[0036] The factory-prefabricated UHPC base plate has guaranteed product quality, is not damaged during transportation, and can be stacked directly, which improves transportation and construction efficiency.
[0037] The UHPC-dense-pore corrugated steel plate reinforced truss floor deck is directly used as the construction formwork for pouring concrete. After the construction is completed, putty can be directly scraped without the need for a suspended ceiling, thereby increasing the floor clearance.
[0038] Lightweight design allows workers to move the floor decking to facilitate construction.
[0039] Specific:
[0040] A steel truss floor deck comprises a steel plate 1, steel trusses 2 and a UHPC ultra-high strength concrete layer; a plurality of steel trusses 2 are fixedly arranged on the steel plate 1, the upper and lower surfaces of the steel plate 1 are both attached with UHPC ultra-high strength concrete layers, and the steel plate 1 is a dense-pore steel plate.
[0041] UHPC is ultra-high performance concrete, a concrete material with high strength, high durability and high workability. It has excellent compression resistance, waterproofness, heat insulation and self-healing capabilities in high temperature, low temperature, cloudy and rainy environments.
[0042] A plurality of steel bar trusses 2 are welded and arranged on the steel plate 1 in parallel at equal intervals.
[0043] The UHPC ultra-high strength concrete layer is poured on the steel plate 1 to form upper and lower concrete layers wrapping the steel plate.
[0044] A plurality of connecting steel bars are fixed on the steel bar truss 2 perpendicularly to the steel bar truss 2 .
[0045] The ends of the connecting steel bars are welded and connected with the floor reinforcement 4.
[0046] The corrugated steel plate has holes, so the floor reinforcement and pipelines can be arranged on site. The UHPC-dense hole corrugated steel plate reinforced truss floor deck is directly used as the construction template for pouring concrete. After the construction is completed, putty can be directly scraped without ceiling, which improves the floor clearance. The factory prefabricated base plate UHPC base plate has guaranteed product quality and no damage during transportation. It can be directly stacked to improve transportation and construction efficiency. The lightweight design allows workers to move the floor deck for easy construction. The processing technology is mature.
[0047] For installation procedures, see Figure 4 :
[0048] 1. The steel truss and dense-pored steel plate are spot welded to form a whole, and then UHPC and dense-pored steel plate are poured to form a composite bottom plate. The purpose of the opening is that UHPC can penetrate into the bottom layer of the steel plate through the holes to form UHPC layers that wrap the steel plate on the upper and lower layers;
[0049] 2. During on-site construction, the UHPC-dense-pore corrugated steel plate steel truss floor deck is directly placed on the beam, and one or more temporary supports are set in the middle to meet the construction stiffness requirements;
[0050] 3. Arrange pipelines and floor reinforcement in the openings of floor decking and the gaps between corrugated steel plates.
[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A steel bar truss floor deck, characterized in that: It comprises a steel plate (1), a steel bar truss (2) and a concrete layer (3); a plurality of steel bar trusses (2) are fixedly arranged on the steel plate (1), and the upper and lower surfaces of the steel plate (1) are both attached with concrete layers (3); the steel plate (1) is a dense-pore steel plate.
2. A steel bar truss floor deck according to claim 1, characterized in that: A plurality of steel bar trusses (2) are welded and arranged in parallel at equal intervals on the steel plate (1).
3. A steel truss floor deck according to claim 1, characterized in that: The concrete layer (3) is a UHPC ultra-high strength concrete layer.
4. A steel bar truss floor deck according to claim 3, characterized in that: The UHPC ultra-high strength concrete layer is poured on the steel plate (1) to form upper and lower concrete layers that wrap the steel plate.
5. The steel bar truss floor deck according to claim 1, characterized in that: A plurality of connecting steel bars are fixed on the steel bar truss (2) perpendicularly to the steel bar truss (2).
6. A steel bar truss floor deck according to claim 5, characterized in that: The ends of the connecting steel bars are welded and connected with the floor slab reinforcement (4).
7. The steel bar truss floor deck according to claim 5, characterized in that: The connecting steel bars are fixed on the inner side of the steel bar truss (2).
8. The steel bar truss floor deck according to claim 1, characterized in that: Steel bars and pipelines are arranged in the openings of the dense-pore steel plate.
9. The steel bar truss floor deck according to claim 1, characterized in that: Pour concrete on the outside of the reinforced truss floor deck.
10. A floor slab, characterized in that: It comprises the steel bar truss floor decking plate as described in any one of claims 1 to 9, and a plurality of steel bar truss floor decking plates are spliced together to form a floor slab.