Steel bearing composite floor slab structure
By adopting a steel-bearing composite floor structure and using a combination of galvanized pressed steel bearing plates and concrete, the problems of long construction period and high cost in the existing technology are solved, and the effects of rapid construction and high-strength bearing are achieved.
Patent Information
- Application Number
- CN202420924807.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The existing reinforced concrete structure industrial factory requires a large number of scaffolding and support systems during the construction process, resulting in the problems of extended construction period, increased costs and long material use cycles.
The steel bearing composite floor structure is adopted, including steel beams, concrete cast layer and galvanized pressed steel bearing plate. The galvanized pressed steel bearing plate is spaced out and the steel beams are connected by bolts and nails. The concrete cast layer is It is formed on the galvanized press-shaped steel bearing plate.
It achieves rapid construction, shortens construction period, reduces material use cycle, reduces costs, and provides good fire resistance and high-strength bearing capacity.
Smart Images
Figure CN222456511U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a floor structure, in particular to a steel-bearing composite floor structure formed by integrating reinforced concrete and galvanized steel bearing plates. Background Art
[0002] At present, reinforced concrete industrial plant buildings have large spans, high floor heights and tight construction schedules. A large amount of scaffolding and other materials are needed to solve the temporary support system of ordinary floor and roof panels. Moreover, the support system can only be dismantled after the concrete strength reaches the requirements, resulting in many disadvantages such as long use cycle of materials, high cost investment and increased construction period. Summary of the invention
[0003] The technical problem to be solved by the utility model is to provide a steel-supported composite floor structure to achieve the purpose of rapid construction.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0005] A steel-supported composite floor structure comprises a steel beam and a concrete pouring layer, wherein a galvanized corrugated steel deck is laid on the upper part of the steel beam, and the concrete pouring layer is poured and formed on the upper part of the galvanized corrugated steel deck.
[0006] Furthermore, raised and recessed parts are arranged at intervals on the galvanized corrugated steel support plate.
[0007] Furthermore, small grooves are provided on the raised and recessed parts of the galvanized corrugated steel support plate.
[0008] Furthermore, the galvanized corrugated steel deck is connected to the steel beam by bolts.
[0009] Furthermore, distribution reinforcement is tied above the galvanized corrugated steel deck.
[0010] Furthermore, the lower part of the steel beam end is connected to the concrete column with pre-buried anchor bolts.
[0011] The utility model utilizes a galvanized corrugated steel deck and a concrete combined structure to pour concrete on the galvanized corrugated steel deck. The laid galvanized corrugated steel deck can be used as a safe working platform. There is no need to set up a formwork support system, which meets the requirements of rapid construction of the main structure and can provide a working platform in a short time. The galvanized steel deck can be laid on multiple floors at the same time, and the concrete slabs can be poured in layers for floor construction, which shortens the construction period and has good fireproof performance.
[0012] In addition, the embossing on the surface of the galvanized corrugated steel decking is used to generate the maximum bite force between the floor decking and the concrete, so that the two form a whole, and the floor distribution reinforcement is added to give the floor decking system a high-strength bearing capacity. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The drawings herein are used to provide further description of the present invention and constitute a part of the present application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.
[0014] Figure 1 It is a schematic diagram of the steel beam elevation;
[0015] Figure 2 It is a schematic diagram of the connection between steel beam and concrete column;
[0016] Figure 3 This is a schematic diagram of the embedded U-shaped anchor bolt;
[0017] Figure 4 This is the large-scale drawing of the galvanized corrugated steel decking;
[0018] Figure 5 It is the connection diagram between steel beam and concrete slab;
[0019] Figure 6 This is a schematic diagram of the reinforcement of floor panels and roof panels.
[0020] In the figure, 1-steel beam, 2-concrete pouring layer, 3-galvanized corrugated steel decking, 4-small groove, 5-stud, 6-distribution reinforcement, 7-anchor bolt, 8-head plate, 9-stiffening rib, 10-concrete column, 11-steel plate, 12-nut. DETAILED DESCRIPTION
[0021] In order to make those skilled in the art better understand the present invention, the present invention is further explained in detail below with reference to the accompanying drawings and embodiments. It should be noted that the features in the embodiments and embodiments of the present application can be combined with each other without conflict.
[0022] A typical embodiment of the utility model provides a steel-supported composite floor structure, comprising a steel beam 1 and a concrete pouring layer 2, wherein a galvanized corrugated steel deck 3 is laid on the upper part of the steel beam 1, and the concrete pouring layer 2 is cast and formed on the upper part of the galvanized corrugated steel deck 2.
[0023] According to the above implementation method, laying galvanized corrugated steel decking saves the time of erecting scaffolding and supporting formwork. If it is a multi-story structure, the laid galvanized corrugated steel decking can be used as a spacious and safe working platform. After the other interlaced working surfaces are completed, the floors can be poured in multiple layers.
[0024] The presence of the galvanized corrugated steel deck 3 avoids exposed cracks under the floor slab and improves the durability of the floor slab. The lower surface of the steel-bearing composite floor slab is beautiful and flat, easy to build and decorate, and the amount of steel bars per square meter is small, which saves measures and supporting materials and reduces costs.
[0025] In this embodiment, the steel beam 1 used for the floor panel is usually made of Q235B or Q345B, transported to the construction site, and hoisted and installed on the pre-constructed concrete column 10. The steel beam 1 can be sloped, the end of the steel beam is reinforced, the end is welded with a head plate 8, and two stiffening ribs 9 are set above the anchor bolts 7.
[0026] The above-mentioned galvanized corrugated steel deck can be processed in a factory in a fixed shape and length, which produces less waste and is beneficial to environmental protection; the material quality is easy to ensure and it is light in weight, and it is very convenient to carry, stack and install, which not only saves a lot of labor, improves the construction conditions of workers, but also improves the quality of the project.
[0027] In a relatively specific implementation, the galvanized corrugated steel support plate 2 is in a corrugated shape, with raised and recessed parts arranged thereon at intervals.
[0028] In a preferred embodiment, small grooves 4 are provided on the raised and recessed parts of the galvanized corrugated steel decking plate 3, and concrete required by the design of the floor or roof panel is poured above the galvanized corrugated steel decking plate 3 to form an integral body with the galvanized corrugated steel decking plate 3, and the small grooves 4 ensure the bite force between the concrete and the galvanized corrugated steel decking plate 3.
[0029] The galvanized corrugated steel decking plate 2 is connected to the steel beam 1 through bolts 5. After the galvanized corrugated steel decking plate 2 is laid on the steel beam, the bolts 5 are welded in the groove part, and the bolts 5 are only welded on the steel beam 1 perpendicular to the span direction.
[0030] In a preferred embodiment, the floor or roof distribution reinforcement 6 is tied and laid above the galvanized corrugated steel deck 2. The deadweight of the concrete floor is completely borne by the steel bars, and no tensile stress is generated in the concrete. The tensile stress of the concrete in the negative and positive bending moment zones during the service period is significantly reduced, and the crack width is reduced.
[0031] In a preferred embodiment, the lower end of the steel beam 1 is connected to the anchor bolt 7 pre-embedded in advance in the concrete column 10. The pre-embedded bolt 7 is a U-shaped bolt, and the material of the U-shaped bolt is the same as that of the steel beam. The steel plate 11 pre-embedded on the top of the concrete column 10 ensures flatness, so that the bottom of the steel beam 1 is effectively combined with the top embedded part of the concrete column 10, and the nut 12 is initially tightened and finally tightened to pass the inspection and acceptance.
[0032] The scope of protection claimed by the present invention is not limited to the above specific implementation methods. For those skilled in the art, the present invention may have various deformations and changes. Any modification, improvement and equivalent substitution made within the concept and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. A steel-supported composite floor structure, comprising a steel beam and a concrete pouring layer, characterized in that: A galvanized corrugated steel deck is laid on the upper part of the steel beam, and a concrete pouring layer is poured and formed on the upper part of the galvanized corrugated steel deck.
2. The steel-supported composite floor structure according to claim 1, characterized in that: The galvanized corrugated steel support plate is provided with raised and recessed parts at intervals.
3. The steel-supported composite floor structure according to claim 2 is characterized in that: Small grooves are provided on the raised and recessed parts of the galvanized corrugated steel support plate.
4. The steel-supported composite floor structure according to claim 1 or 3, characterized in that: The galvanized corrugated steel bearing plate is connected to the steel beam by bolts.
5. The steel-supported composite floor structure according to claim 4, characterized in that: Distribution reinforcement is tied above the galvanized corrugated steel decking plate.
6. The steel-supported composite floor structure according to claim 1 or 5, characterized in that: The lower end of the steel beam is connected to the concrete column with pre-buried anchor bolts.