Fabricated floor structure

Abstract

The utility model relates to the technical field of steel structure construction, in particular to an assembly type floor structure, which is characterized in that a profile steel secondary beam and a floor steel beam of a floor plate structure are detachably connected together through a connecting piece, and the floor plate structure can be prefabricated into an integral module in a factory. Therefore, connection between the floor cover plate structure and the floor cover steel beam can be achieved through the simple connecting joints, the floor cover plate structure is separated from a stress system of the main body structure through the connecting pieces, the floor cover plate structure is not affected by deformation of the main body structure, the floor cover function is not affected, and the floor cover structure is free of on-site high-altitude operation. On-site labor and material waste are saved, the construction period is shortened, the floor cover plate structure can be integrally dismantled and recycled, and therefore economic benefits are improved, and building industrialization is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure construction, in particular to an assembled floor structure. Background Art

[0002] At present, there are two methods for making floor slabs on the market. One is to cast concrete on the steel floor deck. Due to wet operations, it cannot be prefabricated in the factory, and the floor structure cannot be dismantled and reused. The other method is to weld the steel secondary beam to the floor steel beam and then lay the floor slab on it. This also has the problem of high-altitude welding operations and cannot be dismantled and reused. These are undesirable in the technology of this field. Utility Model Content

[0003] In view of the above-mentioned problems, the utility model discloses an assembled floor structure to solve the problem that the floor structure in the prior art cannot be dismantled and reused.

[0004] An assembled floor structure, characterized in that it comprises: a floor steel beam, a connecting piece and a floor plate structure;

[0005] The floor slab structure comprises a steel secondary beam and a floor slab fixed on the steel secondary beam;

[0006] The connecting member comprises a U-shaped trough body, the U-shaped trough body comprises a bottom plate and side plates located on both sides of the bottom plate, an inverted L-shaped hanging plate is fixed to the outer edge of each side plate, and the horizontal part of the inverted L-shaped hanging plate is flush with the top of the side plate;

[0007] The connecting piece is detachably fixed at the connection between the floor steel beam and the steel secondary beam, and the inverted L-shaped hanging plate is hung on the upper flange of the floor steel beam and is fixedly connected to the upper flange of the floor steel beam by screws;

[0008] A notch matched with the floor steel beam is prefabricated below the steel secondary beam, the steel secondary beam is clamped on the floor steel beam through the notch, and the part of the steel secondary beam located at the side wall of the notch is arranged on the bottom plate of the U-shaped trough body of the connecting piece, and the side plate of the U-shaped trough body is fixed to the steel secondary beam by screws.

[0009] In some of the embodiments, the steel secondary beam is a prefabricated light steel keel truss.

[0010] In some of the embodiments, the prefabricated light steel keel truss includes an upper chord keel and a lower chord keel arranged in parallel up and down;

[0011] An oblique belly keel, a straight belly keel and a reinforced keel are connected between the upper chord keel and the lower chord keel.

[0012] In some of the embodiments, the side panels of the U-shaped trough and the vertical portions of the inverted L-shaped hanging panels are both right-angled triangles.

[0013] In some of the embodiments, the connector is formed by welding or flanging.

[0014] In some embodiments, the floor panel is a cement fiber board or an OSB board.

[0015] In some embodiments, the thickness of the cement fiber board is greater than or equal to 20 mm.

[0016] In some embodiments, the screw is a self-tapping screw.

[0017] The above utility model has at least the following advantages or beneficial effects:

[0018] The utility model discloses an assembled floor structure, wherein the floor structure detachably connects the steel secondary beam of the floor plate structure and the floor steel beam through a connecting piece, and the floor plate structure can be prefabricated into an integral module in a factory, so that the connection between the floor plate structure and the floor steel beam can be realized through a simple connection node, and the connecting piece separates the floor plate structure from the force system of the main structure, so that the floor plate structure is not affected by the deformation of the main structure and the floor function, and the floor structure eliminates the need for high-altitude work on site, which not only saves on-site labor and material waste, but also saves construction time, and can also realize the secondary recycling of the overall demolition of the floor plate structure, thereby improving economic benefits and realizing the industrialization of construction. Moreover, the floor structure can be widely used in low-rise and multi-story concrete or steel structure buildings, thereby effectively solving the problem that the floor structure cannot be prefabricated and assembled and cannot be dismantled as a whole during the construction of assembled buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention and its features, appearance and advantages will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, and the emphasis is on illustrating the subject matter of the present invention.

[0020] Figure 1 It is a schematic diagram of the connection structure between the medium-shaped steel secondary beam and the floor steel beam of the assembled floor structure in the embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of the assembled floor structure in the embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the section steel secondary beam in the embodiment of the utility model;

[0023] Figure 4It is an enlarged schematic diagram of the connection node between the section steel secondary beam and the floor steel beam in the embodiment of the utility model;

[0024] Figure 5 It is a three-dimensional diagram of the connecting piece in the embodiment of the utility model.

[0025] Figure 6 This is a front view of the connecting member in the embodiment of the utility model;

[0026] Figure 7 It is a side view of the connecting member in the embodiment of the utility model;

[0027] Among them, 1 is the floor steel beam; 2 is the steel secondary beam; 21 is the upper chord keel, 22 is the lower chord keel; 23 is the oblique belly keel, 24 is the straight belly keel, 25 is the reinforced keel, 26 is the self-tapping screw; 3 is the floor panel; 4 is the connecting piece; 41 is the horizontal part of the inverted L-shaped hanging plate; 42 is the vertical part of the inverted L-shaped hanging plate; 43 is the side plate of the U-shaped trough; 44 is the bottom plate of the U-shaped trough. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0029] like Figures 1 to 7As shown, the utility model discloses an assembled floor structure. Specifically, the assembled floor structure includes a floor steel beam 1, a connecting piece 4 and a floor plate structure; the floor plate structure includes a steel secondary beam 2 and a floor panel 3 fixed on the steel secondary beam 2; specifically, the steel secondary beam 2 and the floor panel 3 are prefabricated as an integral module in a factory, that is, the floor plate structure can be an integral module; of course, the floor panel 3 can also be fixed to the steel secondary beam 2 with self-tapping screws to form the floor structure. The connecting member 4 includes a U-shaped trough body, which includes a bottom plate (bottom plate 44 of the U-shaped trough body) and side plates (side plates 43 of the U-shaped trough body) located on both sides of the bottom plate, and an inverted L-shaped hanging plate is fixed to the outer edge of each side plate, and the horizontal portion 41 of the inverted L-shaped hanging plate is flush with the top of the side plate 43 of the U-shaped trough body, and the side plate 43 of the U-shaped trough body and the vertical portion 42 of the inverted L-shaped hanging plate are both right-angled triangles (the two triangles share a right-angled side, and the right angle of the side plate 43 of the U-shaped trough body is located at the bottom of the right-angled side, and the right angle of the vertical portion 42 of the inverted L-shaped hanging plate is located at the top of the right-angled side). The connector 4 is detachably fixed at the connection between the floor steel beam 1 and the steel secondary beam 2, and the inverted L-shaped hanging plate is hung on the upper flange of the floor steel beam 1 and fixedly connected with the upper flange of the floor steel beam 1 by self-tapping screws (the floor steel beam 1 connected to the middle of the steel secondary beam 2 is provided with connectors 4 on both sides, and the floor steel beam 1 connected to the end of the steel secondary beam 2 only needs to be provided with connectors 4 on one side of the steel secondary beam 2). A notch matching the floor steel beam 1 is prefabricated below the steel secondary beam 2 (that is, the notch of the steel secondary beam 2 is customized according to the position and size of the floor steel beam 1 so that it can be installed on the upper flange of the floor steel beam 1), the steel secondary beam 2 is clamped on the floor steel beam 1 through the notch, and the part of the steel secondary beam 2 located at the side wall of the notch is provided on the bottom plate 44 of the U-shaped trough of the connector 4, and the side plate 43 of the U-shaped trough is fixed to the steel secondary beam 2 by self-tapping screws. Among them, the steel secondary beam 2 is a prefabricated light steel keel truss.

[0030] Specifically, the above-mentioned prefabricated light steel keel truss is a truss beam composed of continuous transverse cold-bent thin-walled C-shaped steel components; the prefabricated light steel keel truss includes an upper chord keel 21 and a lower chord keel 22 arranged in parallel up and down; the upper chord keel 21 and the lower chord keel 22 are connected with an oblique belly keel 23, a straight belly keel 24 and a reinforced keel 25, and each keel is connected by a self-tapping screw 26.

[0031] In the embodiment of the utility model, the above-mentioned connecting member 4 is formed by welding or folding in the factory, and screw holes are pre-drilled in the factory to facilitate subsequent fixing with self-tapping screws.

[0032] In the embodiment of the present invention, the floor panel 3 is a medium-high density cement fiberboard with a thickness greater than or equal to 20 mm or an OSB board with a thickness greater than or equal to 18 mm.

[0033] In the above-mentioned prefabricated floor structure, the floor structure is designed according to the dimensions of the drawing, the floor panel 3 and the prefabricated light steel keel truss are prefabricated as a whole in the factory, can be hoisted as a whole during installation, and connected to the lateral and upper flanges of the floor steel beam 1 through the connecting parts 4 on site; when dismantling, first remove the connecting parts 4, and the floor panel 3, the prefabricated light steel keel truss and the decorative surface layer on the upper side of the panel can be dismantled as a whole.

[0034] Those skilled in the art should understand that those skilled in the art can implement variations by combining the prior art and the above embodiments, which will not be described in detail here. Such variations do not affect the essential content of the present utility model, and will not be described in detail here.

[0035] The above describes the preferred embodiments of the utility model. It should be understood that the utility model is not limited to the above-mentioned specific implementation methods, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the utility model without departing from the scope of the technical solution of the utility model, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. An assembled floor structure, characterized in that: include: Floor steel beams, connectors and floor slab structures; The floor slab structure comprises a steel secondary beam and a floor slab fixed on the steel secondary beam; The connecting member comprises a U-shaped trough body, the U-shaped trough body comprises a bottom plate and side plates located on both sides of the bottom plate, an inverted L-shaped hanging plate is fixed to the outer edge of each side plate, and the horizontal part of the inverted L-shaped hanging plate is flush with the top of the side plate; The connecting piece is detachably fixed at the connection between the floor steel beam and the steel secondary beam, and the inverted L-shaped hanging plate is hung on the upper flange of the floor steel beam and is fixedly connected to the upper flange of the floor steel beam by screws; A notch matched with the floor steel beam is prefabricated below the steel secondary beam, the steel secondary beam is clamped on the floor steel beam through the notch, and the part of the steel secondary beam located at the side wall of the notch is arranged on the bottom plate of the U-shaped trough body of the connecting piece, and the side plate of the U-shaped trough body is fixed to the steel secondary beam by screws.

2. The assembled floor structure according to claim 1, characterized in that: The steel secondary beam is a prefabricated light steel keel truss.

3. The assembled floor structure according to claim 2, characterized in that: The prefabricated light steel keel truss comprises an upper chord keel and a lower chord keel arranged in parallel up and down; An oblique belly keel, a straight belly keel and a reinforced keel are connected between the upper chord keel and the lower chord keel.

4. The assembled floor structure according to claim 1, characterized in that: The side plates of the U-shaped trough body and the vertical parts of the inverted L-shaped hanging plates are both right-angled triangles.

5. The assembled floor structure according to claim 1, characterized in that: The connecting piece is formed by welding or folding.

6. The assembled floor structure according to claim 1, characterized in that: The floor panel is a cement fiber board or an OSB board.

7. The assembled floor structure according to claim 6, characterized in that: The thickness of the cement fiber board is greater than or equal to 20 mm.

8. The assembled floor structure according to claim 1, characterized in that: The screws are self-tapping screws.

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