Steel floor component shaped like Chinese character'mi '

Abstract

The invention relates to a *-shaped steel floor slab component which comprises a bottom plate. The positioning plates are distributed on the bottom plate in parallel at intervals, each positioning plate is uniformly provided with a plurality of mounting grooves in the length direction of the positioning plate, the mounting grooves in the same positions of all the positioning plates are located on the same straight line, and reinforcing teeth are arranged above the positioning plates; the stiffening piece vertically penetrates through the positioning plate and is in sliding fit with the mounting groove, and the stiffening piece is formed by annularly and uniformly distributing a plurality of thin plates and forms a star-shaped structure. Compared with the prior art, by arranging the *-shaped stiffening pieces and other structures, the bending resistance bearing capacity of the floor slab can be greatly improved, traditional welding of a large number of studs or binding of steel bars is not needed, installation can be completed through cooperation of the positioning plates, only simple inserting connection and small-amount welding are needed, and the technology is simple and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of floor slab components and relates to a M-shaped steel floor slab component. Background Art

[0002] Steel-concrete composite structures have been widely used in the field of civil engineering due to their good stress-bearing performance, convenient construction and high material utilization. Among them, steel-concrete composite floors achieve coordinated stress by pouring concrete on steel plates or corrugated steel plates, and have the advantages of superior mechanical properties and flexible space utilization.

[0003] However, welded studs or other connectors are often used to enhance the combination effect between the steel plate and the concrete. For example, Chinese patent application CN113107130A provides a prefabricated steel-concrete composite floor, including: a concrete base plate, a web reinforcement pre-embedded in the concrete base plate, a grouting steel pipe fixed on the top of the web reinforcement, water and electricity pipelines, and a partition; wherein the partition is fixed on the grouting steel pipe, an open space is formed between the partition and the concrete base plate, and the water and electricity pipelines are laid in the open space.

[0004] However, the above-mentioned prior art generally has the following problems: (1) The construction of welding studs is cumbersome, the welding workload is large and the quality requirements are high, which can easily lead to stress concentration and welding defects. If the number of studs is insufficient or the welding quality is poor, it is difficult to obtain the ideal combination effect; (2) The steel bar binding process is time-consuming and labor-intensive and prone to deviation, affecting the overall stress performance of the floor slab; (3) When the initial strength of concrete is low, the floor slab is insufficient in stiffness, especially when large spans or thin plates are constructed, temporary supports need to be set up, which increases costs and difficulty. Summary of the invention

[0005] The purpose of the present invention is to provide a M-shaped steel floor component to solve the problems of cumbersome welding stud construction, inconvenient steel bar binding, and insufficient early rigidity of the floor during the construction of existing steel-concrete composite floors.

[0006] The purpose of the present invention can be achieved by the following technical solutions: A M-shaped steel floor component, comprising: Base plate; A plurality of positioning plates are arranged on the bottom plate in parallel and at intervals, the positioning plates are evenly provided with a plurality of mounting grooves along the length direction thereof, and the mounting grooves at the same position on all positioning plates are located on the same straight line, and the positioning plates are also provided with reinforcing teeth; The reinforcing member vertically passes through the positioning plate and is installed in sliding cooperation with the installation groove. The reinforcing member is composed of a plurality of thin plates evenly distributed in a ring shape to form a cross-shaped structure.

[0007] Furthermore, a plurality of through holes are evenly arranged on the thin plates, and adjacent thin plates are fixed by welding.

[0008] Furthermore, the installation groove is also provided with tooth grooves along the circumferential direction for sliding matching with the thin plate on the stiffener.

[0009] Furthermore, a first clamping block and a second clamping block are respectively provided at both ends of the stiffening member, and the first clamping block and the second clamping block can be engaged with each other, so that the stiffening member can be spliced ​​along the length direction.

[0010] Furthermore, a slot for inserting the second card block is provided in the middle area of ​​the end face of the first card block, and an assembly groove connected to the slot is also processed on the side of the slot, and a limit block that can extend outward is provided in the assembly groove through a spring, and a limit groove for the limit block to extend into the side wall of the second card block.

[0011] More preferably, an outwardly extending end of the limiting block is provided with an inclined surface, and the inclined surface is located on a side of the limiting block facing the second clamping block.

[0012] Furthermore, the stiffener is composed of eight thin plates.

[0013] Furthermore, the reinforcing teeth of the positioning plate are of a trapezoidal structure and are located directly above the mounting groove.

[0014] Furthermore, the bottom plate is a flat steel plate structure, a one-way corrugated steel plate structure or a two-way corrugated steel plate structure.

[0015] Compared with the prior art, the present invention has the following advantages: (1) The present invention provides a cross-shaped stiffener, which, due to its own opening and its connection with the positioning plate, strengthens the overall synergy between the base plate and the concrete, and can greatly improve the bending bearing capacity of the floor slab. In addition, since the cross-shaped stiffener is similar to a stud, it has the function of enhancing the synergy between the steel plate and the concrete. Compared with the traditional operation of using a large number of studs for welding or steel bar binding, it is more convenient. Through spot welding and the positioning plate, it only needs simple plugging and a small amount of welding to complete the installation, and the process is simple.

[0016] (2) The present invention forms a pin effect after concrete pouring by setting the through hole. The reinforcing teeth further increase the strength of the positioning plate at the installation groove and form a stronger meshing with the concrete when pouring the concrete, thereby enhancing the overall rigidity and stability of the floor slab. The temporary support at the bottom of the base plate can be reduced or eliminated, further reducing construction costs and on-site safety risks.

[0017] (3) If the present invention needs to pass the stiffener through more than two positioning plates, one stiffener can be passed through the two positioning plates first, and the two stiffener end faces can be snap-fitted and connected, which makes installation simpler. When the floor slab size is large, the M-shaped stiffener can be produced in sections and connected by simple spot welding, which not only ensures the convenience of transportation and installation, but also meets the overall force requirements.

[0018] (4) The present invention can flexibly adjust the layout according to the force requirements of the floor slab and the form of the lower steel plate to achieve the optimal design under different spans and load conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the planar steel plate structure of the M-shaped steel floor member; Figure 2 It is a schematic diagram of the end structure of the stiffener of the M-shaped steel floor component; Figure 3 This is a schematic diagram of the positions of the stiffeners and positioning plates of the M-shaped steel floor component; Figure 4 It is a schematic diagram of the internal structure of the first clamping block of the M-shaped steel floor component; Figure 5 It is a schematic diagram of the one-way corrugated steel plate structure of the M-shaped steel floor component; Figure 6 It is a schematic diagram of the bidirectional corrugated steel plate structure of the M-shaped steel floor component; Description of the markings in the figure: 1-positioning plate; 2-stiffener; 3-bottom plate; 4-mounting slot; 5-thin plate; 6-reinforcement teeth; 7-through hole; 8-tooth groove; 911-first clamping block; 912-second clamping block; 913-slot; 914-assembly slot; 915-spring; 916-limiting block; 917-limiting slot. DETAILED DESCRIPTION

[0020] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0021] 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 used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] 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.

[0023] In the following implementation manners or examples, unless otherwise specified, functional components or structures are conventional components or conventional structures used in the art to achieve corresponding functions.

[0024] In order to solve the problems of cumbersome welding stud construction, inconvenient steel bar binding, insufficient early rigidity of the slab, etc. in the existing steel-concrete composite slab construction, the present invention provides a M-shaped steel slab component, see Figure 1 As shown in the following, including: Bottom plate 3; A plurality of positioning plates 1 are arranged on the bottom plate 3 in parallel and at intervals, and a plurality of mounting grooves 4 are evenly arranged along the length direction of the positioning plates 1, and the mounting grooves 4 at the same position on all the positioning plates 1 are located on the same straight line; The stiffener 2 vertically passes through the positioning plate 1 and is installed in a sliding manner with the installation groove 4. It is composed of a plurality of thin plates 5 evenly distributed in a ring shape to form a cross-shaped structure.

[0025] In some specific embodiments, the thin plate 5 is evenly provided with a plurality of through holes 7, and the adjacent thin plates 5 can be fixedly connected as a whole by welding or the like. Preferably, the shape of the through hole 7 can be circular or oblong to form a pin effect after the concrete is poured, and the length of the through hole 7 can be flexibly determined according to the thickness of the floor slab. For a circular through hole, its diameter is usually about 1 / 6 of the thickness of the floor slab, and for a long through hole (such as an oblong), its maximum length is 1 / 3-1 / 2 of the thickness of the floor slab. In addition, in the present invention, the material of the thin plate 5 can be Q235 steel plate or Q345 steel plate, and other steel plates can also be selected according to the requirements of the application occasion.

[0026] In some specific embodiments, the mounting groove 4 is also provided with a tooth groove 8 along the circumferential direction for sliding matching with the thin plate 5 on the stiffener 2. By setting the tooth groove 8, the stiffening plate can be limited in position in cooperation with the thin plate 5, which can not only increase the friction between the positioning plate 1, but also prevent rotation.

[0027] In some specific embodiments, the two ends of the stiffener 2 are respectively provided with a first clamping block 911 and a second clamping block 912, and the first clamping block 911 and the second clamping block 912 can be mutually engaged and connected, so that the stiffener 2 can be spliced ​​along the length direction. In this way, when it is necessary to pass the stiffener 2 through more than two positioning plates 1, one stiffener 2 can be passed through two positioning plates 1 first, and the end faces of the two stiffeners 2 can be engaged and connected, which makes installation easier.

[0028] In a more specific embodiment, a slot 913 is provided in the middle area of ​​the end face of the first clamping block 911 for the second clamping block 912 to be inserted, and a mounting slot 914 connected thereto is also processed on the side of the slot 913, and a stopper block 916 that can extend outward is provided in the mounting slot 914 through a spring 915, and a stopper block 917 is provided on the side wall of the second clamping block 912 for the stopper block 916 to extend into. In this way, during specific operation, when the first clamping block 911 is engaged with the second clamping block 912, the second clamping block 912 extends into the slot 913 to squeeze the stopper block 916 to shrink into the mounting slot 914, and when the stopper slot 917 corresponds to the stopper block 916, the stopper block 916 extends into the stopper slot 917 under the push of the spring 915 to limit the position, thereby ensuring the firmness of the two stiffeners 2 after installation and preventing them from slipping. In addition, it should be pointed out that a limiting member, such as a limiting protrusion, may be further provided on the assembly groove 914 to restrict the length of the limiting block 916 extending outward and ensure that the spring 915 in the assembly groove 914 is always in a compressed state.

[0029] In a more preferred embodiment, an inclined surface is provided at one end of the limit block 916 extending outward, and the inclined surface is located on the side of the limit block 916 facing the second clamping block 912. The set inclined surface facilitates the second clamping block 912 to squeeze the limit block 916 into the assembly groove 914, and then under the resetting action of the spring 915, the limit block 916 extends out and cooperates with the limit groove 917.

[0030] In some specific implementations, the stiffener 2 is composed of eight thin plates 5 .

[0031] In some specific embodiments, a reinforcing tooth 6 is further provided on the top of the positioning plate 1. The reinforcing tooth 6 has a trapezoidal structure and is located directly above the mounting groove 4. The reinforcing tooth 6 can increase the strength of the positioning plate 1 at the mounting groove 4 and form a stronger meshing with the concrete when pouring concrete.

[0032] In some specific implementations, the bottom plate 3 is a flat steel plate structure, a one-way corrugated steel plate structure, or a two-way corrugated steel plate structure.

[0033] The above embodiments may be implemented individually or in any combination of two or more.

[0034] The above implementation is described in more detail below in conjunction with specific examples.

[0035] Example 1

[0036] Please see again Figures 1 to 6 As shown, this embodiment provides a technical solution: a M-shaped steel floor component, including a positioning plate 1, a stiffener 2 and a base plate 3, the positioning plate 1 is provided with multiple and spaced apart arrangements above the base plate 3, a plurality of mounting grooves 4 are evenly arranged on the positioning plate 1, the mounting grooves 4 at the same position on the plurality of positioning plates 1 are on the same straight line, the stiffener 2 is composed of eight thin plates 5, the thin plates 5 are evenly distributed in a ring shape, thereby forming a M-shaped structure, the stiffener 2 is slidably installed with the mounting grooves 4, and a reinforcing tooth 6 is provided above the positioning plate 1.

[0037] like Figure 1-Figure 6 As shown, a plurality of through holes 7 are evenly arranged on the thin plate 5, and adjacent thin plates 5 are welded. The material of the thin plate 5 is Q235 steel plate or Q345 steel plate. The through holes 7 on the thin plate 5 are distributed in a circular or oblong shape to form a pin effect after concrete pouring.

[0038] like Figure 1-Figure 6 As shown, the mounting groove 4 is provided with a plurality of tooth grooves 8 which are slidably matched with the thin plate 5. The tooth grooves 8 are provided to limit the stiffener 2, which can not only increase the friction between the stiffener 2 and the positioning plate 1, but also prevent rotation.

[0039] like Figure 1-Figure 6 As shown, a first clamping block 911 and a second clamping block 912 are respectively provided at both ends of the stiffening member 2, and the first clamping block 911 and the second clamping block 912 are arranged to be engaged with each other. By arranging the first clamping block 911 and the second clamping block 912 at both ends of the stiffening member 2, it is convenient to engage and position the end faces of two adjacent stiffening members 2. If it is necessary to pass the stiffening member 2 through more than two positioning plates 1, one stiffening member 2 can be passed through two positioning plates 1 first, and the end faces of the two stiffening members 2 can be engaged and connected, which makes the installation simpler.

[0040] like Figure 1-Figure 6 As shown, a slot 913 is provided on the end face of the first clamping block 911, and an assembly slot 914 connected to the slot 913 is symmetrically provided inside the first clamping block 911 at the slot 913. A limit block 916 is provided in the assembly slot 914 through a spring 915, and a limit slot 917 adapted to the limit block 916 is provided on the side wall of the second clamping block 912. When the first clamping block 911 is engaged with the second clamping block 912, the second clamping block 912 extends into the slot 913 to squeeze the limit block 916 to shrink into the assembly slot 914. When the limit slot 917 corresponds to the limit block 916, the limit block 916 extends into the limit slot 917 under the push of the spring 915 to limit, thereby ensuring the firmness of the two stiffeners 2 after installation and preventing them from slipping.

[0041] like Figure 1-Figure 6 As shown, the limit block 916 is provided with a slope at one end thereof, and the slope is located on the side of the limit block 916 facing the outside. The slope makes it easier for the second clamping block 912 to squeeze the limit block 916 into the assembly groove 914.

[0042] like Figure 1-Figure 6 As shown, a plurality of reinforcing teeth 6 are provided and are located directly above the mounting groove 4. The reinforcing teeth 6 are arranged in a trapezoidal structure. The reinforcing teeth 6 can increase the strength of the positioning plate 1 at the mounting groove 4 and form a stronger meshing with the concrete when pouring the concrete.

[0043] In addition, in this embodiment, the bottom plate 3 can be a flat steel plate structure, a one-way corrugated steel plate structure or a two-way corrugated steel plate structure, respectively. Figure 1 , Figure 5 and Figure 6 Shown The working principle of the M-shaped steel floor component of this embodiment is as follows: When in use, the stiffener 2 is passed through multiple installation slots 4 and installed between multiple positioning plates 1. When there are a large number of positioning plates 1, one grid of stiffeners 2 can be passed through two positioning plates 1 first, and the adjacent stiffeners 2 end faces can be connected by snapping, so that the installation is more convenient. After installation, the bottom of the stiffener 2 is spot welded to the bottom plate 3 to ensure the stability of the stiffener 2. The component is subsequently assembled on the floor slab, and the composite floor slab is formed after pouring concrete. When pouring concrete, the concrete flows to the multiple through holes 7 on the thin plate 5, which can form a pin effect, and the M-shaped structure formed by the stiffener 2 forms a more reliable bond with the concrete, achieving a more stable state.

[0044] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A M-shaped steel floor member, characterized in that: include: Base plate; A plurality of positioning plates are arranged on the bottom plate in parallel and at intervals, the positioning plates are evenly provided with a plurality of mounting grooves along the length direction thereof, and the mounting grooves at the same position on all positioning plates are located on the same straight line, and the positioning plates are also provided with reinforcing teeth; The reinforcing member vertically passes through the positioning plate and is installed in sliding cooperation with the installation groove. The reinforcing member is composed of a plurality of thin plates evenly distributed in a ring shape to form a cross-shaped structure.

2. The M-shaped steel floor member according to claim 1, characterized in that: The thin plates are also evenly provided with a plurality of through holes, and adjacent thin plates are fixed by welding.

3. The M-shaped steel floor member according to claim 1, characterized in that: The installation groove is also provided with tooth grooves along the circumferential direction for sliding matching with the thin plate on the stiffener.

4. The M-shaped steel floor member according to claim 1, characterized in that: The two ends of the stiffener are respectively provided with a first clamping block and a second clamping block, and the first clamping block and the second clamping block can be mutually engaged and connected, so that the stiffener can be spliced ​​along the length direction.

5. The M-shaped steel floor member according to claim 4, characterized in that: A slot for inserting the second card block is provided in the middle area of ​​the end face of the first card block, and an assembly slot connected to the slot is also processed on the side of the card slot. A limit block that can extend outward is provided in the assembly slot through a spring, and a limit slot for extending the limit block is also provided on the side wall of the second card block.

6. The M-shaped steel floor member according to claim 5, characterized in that: An outwardly extending end of the limiting block is provided with an inclined surface, and the inclined surface is located on a side of the limiting block facing the second clamping block.

7. The M-shaped steel floor member according to claim 1, characterized in that: The stiffener is composed of eight thin plates.

8. The M-shaped steel floor member according to claim 1, characterized in that: The reinforcing teeth are in a trapezoidal structure and are located directly above the mounting groove.

9. The M-shaped steel floor member according to claim 1, characterized in that: The bottom plate is a flat steel plate structure, a one-way corrugated steel plate structure or a two-way corrugated steel plate structure.

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