CN207794401U - A kind of composite floor - Google Patents

Abstract

The utility model discloses a composite floor, which comprises a truss beam (1), a profiled steel plate (2) fixed on the truss beam (1), a profiled steel plate (2) fixed on the profiled steel plate (2). The upper plate (3), at least two lifting rods (4) are installed on the truss beam (1), the lifting rods (4) are located below the profiled steel plate (2), and on the upper There are at least three hoisting holes (5) on the plate (3), the hoisting holes (5) pass through the upper layer (3) and the profiled steel plate (2), and the hoisting holes (5) are located Directly above the lifting rods (4), at least one lifting hole (5) is arranged directly above each lifting rod (4). The combined floor slab provided by the utility model can realize the hoisting of the floor slab conveniently, and basically does not affect the structural strength of the truss beam.

Description

a composite floor

technical field

The utility model relates to the technical field of prefabricated buildings, in particular to a composite floor for prefabricated buildings.

Background technique

The prefabricated building is a building that is prefabricated in the factory and transported to the construction site, and the components are assembled through reliable connections. Compared with the traditional house structure, the prefabricated building has the following advantages: 1) Flexible space layout , high degree of integration; 2) light weight, high bearing capacity, superior seismic performance; 3) green, environmental protection, energy saving, will not produce a lot of waste to pollute the environment during the construction process; 4) short construction period, high product quality; 5 ) can realize the industrialization and industrialization of housing construction, realize technology integration, and improve the scientific and technological content and use functions of housing; 6) high comprehensive economic benefits; 7) less restricted by climatic conditions.

The floor slabs of existing prefabricated buildings are usually composed of truss beams, profiled steel plates, steel mesh and surface layers. This floor slab has the advantages of good anti-vibration performance, reasonable stress, light weight, high strength, and low cost. When the slab was assembled, straps were tied to the truss beams, and a crane was used to lift the slab into alignment with the freestanding foundations below and secure it.

Although the above-mentioned floors are fixed with slings when hoisting, since the slings directly act on the rods of the trusses, it may affect the structural strength of the truss girders. The position of the suspension sling is greatly restricted, which is not convenient for the hoisting of the floor.

Utility model content

The purpose of the utility model is to provide a combined floor slab, which can realize the hoisting of the floor slab conveniently, and basically does not affect the structural strength of the truss beam.

In order to achieve the above object, the utility model provides a composite floor, which includes a truss beam, a profiled steel plate fixed on the truss beam, an upper plate fixed on the profiled steel plate, and the At least two hoisting rods are installed on the truss girder, the hoisting rods are located below the profiled steel plate, and at least three hoisting holes are opened on the upper deck, and the hoisting holes pass through the upper deck and the As for the profiled steel plate, the hoisting hole is located directly above the hoisting rod, and at least one hoisting hole is provided directly above each hoisting rod.

Preferably, the lifting rod is detachably mounted on the truss beam.

Preferably, two mounting plates are fixed on the bottom bars of the front beam and the rear beam of the truss girder, and a through hole for passing through the lifting rod is opened on the mounting plate. The ends are respectively inserted into the through holes of the mounting plates on the front beam and the rear beam.

Preferably, the axes of the through holes of the two mounting plates on the front beam are parallel to each other, and the distance between the mounting plate on the left side of the front beam and the left end of the front beam is equal to that of the mounting plate on the right side of the front beam. The distance between the plate and the right end of the front cross member.

Preferably, the upper layer board includes a surface layer and a decorative layer fixed on the surface layer.

Preferably, the upper surface of the upper layer is inclined from one end to the other, and the inclination angle of the upper surface of the upper layer is 0.1-5 degrees.

Preferably, the upper surface of the upper layer plate is a stepped surface with one end high and one end low.

Preferably, the upper board is provided with a socket installation hole, the socket installation hole passes through the upper board and the profiled steel plate, and the socket is fixedly installed on the socket installation hole.

Preferably, the composite floor slab further includes an independent foundation, one independent foundation is installed at each corner of the truss beam, and the independent foundation is located below the truss beam.

Preferably, a fixed plate is fixed at each corner of the truss beam, and the independent foundation is connected to the fixed plate through anchor bolts.

The utility model differs from the prior art in that the composite floor provided by the utility model is provided with hoisting holes on the upper floor, and a hoisting rod is installed on the truss beam. When the composite floor is hoisted, the sling passes through the hoisting hole It is connected with the lifting rod located below, because the lifting strap exerts force on the truss beam through the lifting rod, and generates an upward force on the truss beam, which will not generate lateral force like connecting the lifting strap directly to the truss beam, so basically Does not affect the structural strength of the truss beam. Simultaneously, because the sling is connected with the hoisting rod through the hoisting hole provided on the upper deck, when a plurality of floor slabs are combined together, the hoisting of the floor slabs will not be affected due to the assembly of the plurality of floor slabs. Therefore, the combined floor slab provided by the utility model can realize the hoisting of the floor slab conveniently, and basically does not affect the structural strength of the truss beam.

Description of drawings

Fig. 1 is a structural schematic diagram of a composite floor slab of an embodiment provided by the utility model;

Fig. 2 is a structural schematic diagram of another embodiment of the composite floor provided by the utility model;

Fig. 3 is the front view of the composite floor shown in Fig. 2;

Fig. 4 is a structural schematic diagram of the composite floor provided by the utility model, wherein the upper deck and part of the profiled steel plate are not shown;

Explanation of reference signs:

1-truss beam; 11-front beam; 12-rear beam; 2-profiled steel plate; 3-upper plate; 4-hoisting rod; 5-hoisting hole; 6-installation plate;

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described. However, the use and purpose of these exemplary embodiments are only used to illustrate the utility model, and do not constitute any form of any limitation on the actual protection scope of the utility model, let alone limit the protection scope of the utility model thereto.

Some orientation words are defined in the utility model. In the case of no contrary description, the orientation words used such as "up, down, left, right, front, and back" refer to the composite floor provided by the utility model in normal It is defined in the use case and is consistent with the up, down, left, right, front, back directions shown in Figure 3. "Inside and outside" refer to inside and outside relative to the outline of each part itself. These orientation words are adopted for ease of understanding, and thus do not constitute a limitation to the protection scope of the present utility model.

In the present invention, when a component is said to be "fixed" to another component, it may be directly fixed to the other component, or there may be an intervening component. When a component is said to be "connected" to another component, it can be directly connected to the other component or there may be a centered component at the same time.

Appropriately referring to Figure 1, the composite floor slab of the basic embodiment provided by the utility model includes a truss beam 1, a profiled steel plate 2 fixed on the truss beam 1, and an upper plate 3 fixed on the profiled steel plate 2 . The shape of the truss girder 1 is generally rectangular, as shown in FIG. and the right longitudinal beam are both composed of truss members, specifically, as shown in Figure 4, both include an upper rod, a lower rod parallel to the upper rod, an oblique support rod and a vertical The support rods, the upper rods, the lower rods, the oblique support rods and the vertical support rods are all made of angle iron. The profiled steel plate 2 is preferably a closed profiled steel plate. The fixing of the profiled steel plate 2 can also be facilitated by making the upper bars of the front cross beam 11, the left longitudinal beam, the rear cross beam 12 and the right longitudinal beam an angle iron. The upper slab 3 is a floor slab poured in a factory, and its material can be modified cement mortar, light aggregate concrete, foamed concrete or light gangue concrete.

Wherein the composite floor slab may also include a reinforcement mesh arranged on a profiled steel plate, and the reinforcement mesh may be fixed in the upper slab 3 when the upper slab 3 is poured, thereby improving the structural strength of the upper slab 3 .

Referring to Fig. 1, Fig. 3 and Fig. 4, in this embodiment, at least two lifting rods 4 are installed on the truss girder 1, and the lifting rods 4 are located below the profiled steel plate 2. The upper plate 3 is provided with at least three hoisting holes 5, the hoisting holes 5 pass through the upper plate 3 and the profiled steel plate 2, the hoisting holes 5 are located directly above the hoisting rod 4, At least one hoisting hole 5 is arranged directly above each hoisting rod 4 .

When the combined floor slab provided by the above-mentioned basic embodiment is assembled, the sling can be passed through the hoisting hole 5 provided on the upper floor 3, then bound on the hoisting rod 4, and then the upper end of the sling is connected to the hook of the hoisting machine , since two hoisting rods and at least three hoisting holes 5 are provided, the balance of the hoisted combined floor slab can be ensured. Because the sling exerts force on the truss girder 1 through the lifting rod 4 , and generates an upward force on the truss girder 1 , it basically does not affect the structural strength of the truss girder 1 . Simultaneously because suspender is to be connected with hoisting bar 4 by offering hoisting hole 5 on the upper deck 3, when a plurality of floor slabs are combined together, a plurality of floor slabs can be pieced together easily.

On the basis of the above embodiments, preferably, the upper layer 3 may include a surface layer and a decorative layer fixed on the surface layer, the surface layer may be poured from materials such as foamed concrete, and the decorative layer may be For the indoor floor tiles attached to the construction on the factory assembly line, the indoor floor tiles can be vitrified tiles, polished tiles, glazed tiles, anti-skid tiles, etc. The hoisting hole 5 that opened now passes through the decoration layer and the surface layer. According to needs, the decorative layer can also be laid after the on-site composition is completed. At this time, the decorative layer can close the hoisting hole 5 .

In a preferred embodiment of the present invention, the lifting rod 4 is detachably installed on the truss beam 1 . That is, after the composite floor is installed, the lifting rod 4 can be removed and used for hoisting of other composite floors, so that multiple composite floors can share one lifting rod 4 to reduce the production cost of the composite floor.

The lifting rod 4 can be a hollow rod or a solid rod, and its material can be made of mold steel and other materials.

In the present invention, the lifting rod 4 can be detachably installed on the truss girder 1 in various ways. Preferably, as shown in Fig. 1 and Fig. 2, in a preferred embodiment, two mounting plates 6 are fixed on the bottom bars of the front beam 11 and the rear beam 12 of the truss girder 1, and the mounting plates 6 is provided with a through hole for passing through the lifting rod 4, and the front and rear ends of the lifting rod 4 are respectively inserted into the through holes of the mounting plate 6 on the front beam 11 and the rear beam 12. The shape of the mounting plate 6 can be rectangular, and a through hole is opened in the middle thereof. The shape of the through hole is determined according to the shape of the lifting rod 4. When the lifting rod 4 is a round rod, the through hole is a circular hole. When the lifting rod 4 is a rectangular rod, the through hole is rectangular. The mounting plate 6 can be fixed on the bottom bar of the front cross beam 11 or the rear cross beam 12 by means of welding, bolt connection and the like.

The above-mentioned mounting plate 6 is used to fix the lifting rod 4. After the composite floor is hoisted, the lifting rod 4 can be easily extracted from the through hole of the mounting plate 6 for hoisting of other composite floors.

Preferably, the axes of the through holes of the two mounting plates 6 fixed on the front beam 11 are parallel to each other, and the distance between the mounting plate 6 on the left side of the front beam 11 and the left end of the front beam 11 is equal to that on the left side of the front beam 11. The distance between the mounting plate 6 on the right side of the front beam 11 and the right end of the front beam 11 . That is, the axes of the through holes of the two mounting plates 6 installed on the front beam 11 are symmetrically arranged about the center of the front beam 11, and the axes of the through holes of the two mounting plates 6 installed on the rear beam 12 are also about the front beam 11. The left-right symmetrical setting of the center. Thereby, the two lifting rods 4 installed can be made to be parallel to each other.

According to needs, three or more hoisting rods can also be installed on the truss girder 1 to facilitate the hoisting of the composite floor.

In one embodiment of the present utility model, the upper surface of the upper layer plate 3 is inclined from one end to the other end, and the inclination angle of the upper surface of the upper layer plate 3 is 0.1-5 degrees. The composite floor can be used in the kitchen, by setting the upper surface of the upper floor 3 as a slightly inclined surface, the water spilled on the upper floor 3 can be gathered to one end of the composite floor to be discharged by the floor drain, so that it will not Occurrence of impregnation of furniture appliances placed on the floor due to forgetting to turn off the tap.

In another embodiment of the present utility model, as shown in FIG. 2 and FIG. 3 , the upper surface of the upper plate 3 is a stepped surface with one end high and the other end low. Setting the upper surface of the upper board 3 as a step surface can facilitate the use of the floor in the bathroom, that is, the lower end is set for bathing, so that the bathing water will not flow to the bathroom floor, which helps to keep the bathroom clean as a whole .

In the utility model, in order to facilitate the installation of indoor electrical appliances, as shown in Figure 1, preferably, a socket mounting hole is provided on the upper layer 3, and the socket mounting hole passes through the upper layer 3 and the profiled steel plate 2. A socket 7 is fixedly installed on the socket mounting hole. Wires connecting the sockets 7 can be arranged between the truss girders 1 located under the profiled steel plates 2 .

In the present utility model, the composite floor slab may also include an independent foundation 8, one independent foundation 8 is installed at each corner of the truss beam 1, and the independent foundation 8 is located at the corner of the truss beam 1 below. For example, as shown in FIG. 1 , when the truss girder 1 is rectangular, an independent foundation 8 is fixed at four corners of the truss girder 1 , so that the truss girder 1 can be stably supported.

The independent foundation 8 is a reinforced concrete foundation with pre-embedded anchor bolts prefabricated in the factory. The independent foundation 8 generally includes a concrete pier and a short foundation column located on the concrete pier. The concrete pier is cast in a mold, and the short foundation The column is pre-buried in the concrete pier, in which anchor bolts are set.

The truss girder 1 can be fixedly connected to the independent foundation 8 in various appropriate ways. In a preferred embodiment, a fixed plate is fixed at each corner of the truss beam 1 , and the independent foundation 8 is connected to the fixed plate through anchor bolts. Specifically, at the corner formed by the bottom bar of the truss girder 1, a rectangular fixing plate is welded and connected, and a long strip-shaped mounting hole is opened on the fixing plate, and the anchor bolt passes through the mounting hole on the fixing plate and passes through the nut lock tight. Wherein the lower end of the truss beam 1 is pressed on the independent foundation 8, so that the fixed plate only bears the lateral force, so the overall structural strength of the composite floor can be improved.

It can be seen from the above that the composite floor provided by the utility model has the following technical advantages compared with the existing floor: 1. It is convenient for hoisting and is suitable for the installation of multiple composite floors; 2. The structural strength of the composite floor will not be affected basically when the composite floor is hoisted ; 3. The overall structural strength of the combined floor slab is high and the manufacturing cost is low.

The order of the above implementations is for convenience of description only, and does not represent the advantages or disadvantages of the implementations.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions recorded in the foregoing embodiments, or to perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit of the technical solutions of the various embodiments of the present invention. and range.

Claims (10)

1. A composite floor, said composite floor comprising a truss girder (1), a profiled steel plate (2) fixed on said truss beam (1), an upper deck fixed on said profiled steel plate (2) (3), characterized in that at least two lifting rods (4) are installed on the truss girder (1), and the lifting rods (4) are located below the profiled steel plate (2). The upper deck (3) is provided with at least three hoisting holes (5), the hoisting holes (5) pass through the upper deck (3) and the profiled steel plate (2), and the hoisting holes (5) Located directly above the lifting rods (4), at least one lifting hole (5) is arranged directly above each lifting rod (4). 2. The composite floor slab according to claim 1, characterized in that, the lifting rod (4) is detachably installed on the truss beam (1). 3. The composite floor slab according to claim 2, characterized in that, two mounting plates (6) are fixed on the bottom bars of the front beam (11) and the rear beam (12) of the truss girder (1), The mounting plate (6) is provided with a through hole for passing through the lifting rod (4), and the front and rear ends of the lifting rod (4) are respectively inserted into the front beam (11) and the rear beam (12) into the through hole of the mounting plate (6) on the 4. The combined floor slab according to claim 3, characterized in that the axes of the through holes of the two mounting plates (6) on the front beam (11) are parallel to each other, and are located on the left side of the front beam (11). The distance between the side mounting plate (6) and the left end of the front beam (11) is equal to the distance between the mounting plate (6) on the right side of the front beam (11) and the right end of the front beam (11). 5. The composite floor slab according to claim 1, characterized in that, the upper layer (3) comprises a surface layer and a decorative layer fixed on the surface layer. 6. The combined floor slab according to any one of claims 1-5, characterized in that, the upper surface of the upper deck (3) is inclined from one end to the other, and the inclination of the upper surface of the upper deck (3) The angle is 0.1-5 degrees. 7. The composite floor slab according to any one of claims 1-5, characterized in that the upper surface of the upper floor slab (3) is a stepped surface with one end high and one end low. 8. The composite floor according to any one of claims 1-5, characterized in that, the upper board (3) is provided with a socket installation hole, and the socket installation hole passes through the upper board (3) and A profiled steel plate (2), a socket (7) is fixedly installed on the socket mounting hole. 9. The composite floor slab according to claim 1, characterized in that, the composite floor slab also includes an independent foundation (8), and one of the independent foundations (8) is installed at each corner of the truss beam (1) 8), the independent foundation (8) is located below the truss beam (1). 10. The composite floor slab according to claim 9, characterized in that, each corner of the truss beam (1) is fixed with a fixing plate, and the independent foundation (8) is connected with the fixing plate through anchor bolts.