Steel bar truss floor support plate and floor slab structure

Abstract

A steel bar truss floor support plate and a floor slab structure belong to the technical field of building floor slabs. Which comprises a bottom plate (2) and a steel bar truss fixed on the upper surface of the bottom plate (2), and is characterized in that a bottom plate groove (1) is formed in the edge of at least one side edge of the lower surface of the bottom plate (2), and the bottom plate groove (1) is formed in the arrangement direction of the corresponding side edge of the bottom plate (2). According to the steel bar truss floor support plate and the floor slab structure, the bottom plate groove is formed in the bottom of the bottom plate, and after two adjacent steel bar truss floor support plates are in butt joint, mortar is arranged in the bottom plate groove to block a gap between the two adjacent steel bar truss floor support plates, so that cracking at the gap after wall decoration is avoided; compared with the technical scheme that a groove or a slope structure is arranged on the edge of the bottom plate in the prior art, the machining difficulty of the bottom plate is reduced. The bottom plate groove comprises a bottom groove and a plurality of groove face grooves, and the groove face grooves are formed in the bottom plate groove, so that the effect of improving the adhesive force of mortar is achieved.

Description

TECHNICAL FIELD

[0001] The steel bar truss floor support plate and floor structure belong to the technical field of building floors. BACKGROUND

[0002] With the continuous development of the construction industry, steel bar truss floor support plates are gradually applied in various buildings. The steel bar truss floor support plate speeds up the construction progress and enhances the support effect, while reducing the support structure to achieve rapid installation. The floor structure constructed by using the steel bar truss floor support plate is formed by splicing two adjacent steel bar truss floor support plates, so that after the indoor wall decoration is completed, the gap between the two steel bar truss floor support plates is prone to cracking.

[0003] In the prior art, to solve the problem of wall cracking at the joint of the steel bar truss floor support plate, the main means adopted is to eliminate the gap at the joint of the two steel bar truss floor support plates by various special-shaped structures, which specifically includes the following:

[0004] (1) Insertion method. Structure-complementary insertion groove structures are respectively formed on both side edges of the bottom plate of the steel bar truss floor support plate. When the steel bar truss floor support plates are jointed, the insertion groove structures on the bottom plates of the two steel bar truss floor support plates are inserted to eliminate the gap at the joint. For example, the technical solution disclosed in the Chinese Utility Model Patent with the application number 202123326846.9 and the application date of December 27, 2021, entitled “Connecting piece and positioning type disassembly-free mold steel bar truss floor support plate”, and the technical solution disclosed in the Chinese Invention with the application number 202210421470.X and the application date of April 21, 2022, entitled “Structure and assembly method of thin-walled steel pipe bundle-concrete composite floor”.

[0005] (2) Slope joint method. Structure-complementary slopes are respectively formed on both side edges of the bottom plate of the steel bar truss floor support plate. When the steel bar truss floor support plates are jointed, the slopes on the bottom plates of the two steel bar truss floor support plates are upwardly and downwardly jointed to form an interlaced structure, so as to eliminate the gap at the joint. For example, the technical solution disclosed in the Chinese Utility Model Patent with the application number 202121015108.X and the application date of May 12, 2021, entitled “Anti-misplacement rabbet disassembly-free floor support plate”, and the technical solution disclosed in the Chinese Utility Model with the application number 202221488997.6 and the application date of June 15, 2022, entitled “Fabricated disassembly-free bottom mold steel bar truss floor support plate”.

[0006] (3) Directly design the bottom plate as a metal plate, and then cast and press structure-complementary hanging ribs at the edges of the metal plate. When the steel bar truss floor support plates are jointed, the hanging ribs on the bottom plates of the two steel bar truss floor support plates are jointed to eliminate the gap at the joint.

[0007] In the above technical solutions, complementary structures are needed to be arranged on both sides of the bottom plate of the steel bar truss floor support plate, so the processing process is relatively complex, and the applicant of the present application hopes to design a brand new technical solution to eliminate the gap between the two steel bar truss floor support plate bottom plates and further eliminate the cracking problem of the indoor wall surface. Content of the utility model

[0008] The utility model solves the technical problems that: overcome the insufficient of prior art, provide a kind of bottom plate slot by being set in the bottom of bottom plate, when the butt joint of adjacent two steel bar truss floor support plates, the gap between the adjacent two steel bar truss floor support plates is sealed by being set mortar in bottom plate slot, avoid the cracking in gap after wall decoration, compared with the technical solution of the recess or slope structure of the edge of bottom plate in prior art, the steel bar truss floor support plate and floor structure of reduced bottom plate processing difficulty.

[0009] The utility model solves the technical problems that: overcome the insufficient of prior art, provide a kind of bottom plate slot by being set in the bottom of bottom plate, when the butt joint of adjacent two steel bar truss floor support plates, the gap between the adjacent two steel bar truss floor support plates is sealed by being set mortar in bottom plate slot, avoid the cracking in gap after wall decoration, compared with the technical solution of the recess or slope structure of the edge of bottom plate in prior art, the steel bar truss floor support plate and floor structure of reduced bottom plate processing difficulty.

[0010] Preferably, the bottom plate slot is opened to the inside of the bottom plate along the edge of the bottom plate.

[0011] Preferably, the bottom plate slot includes a bottom slot opened at the edge of the bottom plate.

[0012] Preferably, a plurality of groove grooves are further opened on the upper surface of the bottom slot.

[0013] Preferably, the steel bar truss includes two lower chord steels arranged side by side and an upper chord steel arranged at the upper part between the two lower chord steels, and the two sides of the upper chord steel are connected to the lower chord steels of the corresponding sides through web steel bars.

[0014] Preferably, a connecting frame is fixed on the surface of the bottom plate, and the steel bar truss is fixed on the surface of the connecting frame.

[0015] Preferably, a crack prevention net is further arranged at the bottom of the sealing layer.

[0016] A floor structure includes a plurality of steel bar truss floor support plates arranged side by side, and the bottom plate slot of any two steel bar truss floor support plates is butt jointed to form a groove body, and a sealing layer for sealing the gap between the two steel bar truss floor support plates is arranged at the groove body.

[0017] Preferably, the sealing layer is mortar.

[0018] Compared with the prior art, the utility model has the beneficial effects that:

[0019] In the steel bar truss floor support plate and floor structure, the bottom plate groove is arranged at the bottom of the bottom plate, when the two adjacent steel bar truss floor support plates are butted, the gap between the two adjacent steel bar truss floor support plates is sealed by arranging the mortar at the bottom plate groove, so that the cracking at the gap after the wall decoration is avoided, compared with the technical scheme that the groove or slope structure is arranged at the edge of the bottom plate in the prior art, the processing difficulty of the bottom plate is reduced.

[0020] The bottom plate groove comprises a bottom groove and a plurality of groove surface grooves further arranged on the surface of the bottom groove, the groove surface grooves are arranged at the bottom plate groove, so that the adhesion of the mortar is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the axonometric view of the steel bar truss floor support plate embodiment 1.

[0022] Figure 2 It is the front view of the steel bar truss floor support plate embodiment 1.

[0023] Figure 3 It is the bottom view of the steel bar truss floor support plate embodiment 1. Figure 2

[0024] Figure 4 It is the enlarged view of A in the steel bar truss floor support plate embodiment 1. Figure 2

[0025] Figure 5 It is the schematic view of the floor structure constructed by using the steel bar truss floor support plate.

[0026] Figure 6 It is the bottom view of the steel bar truss floor support plate embodiment 2.

[0027] Figure 7 It is the bottom view of the steel bar truss floor support plate embodiment 3.

[0028] Figure 8 It is the front view of the steel bar truss floor support plate embodiment 4.

[0029] Figure 9 It is the bottom view of the steel bar truss floor support plate embodiment 4. Figure 8

[0030] 1, bottom plate groove 2, bottom plate 3, lower chord steel bar 4, upper chord steel bar 5, web steel bar 6, connecting frame 7, groove surface groove 8, bottom groove 9, mortar 10, anti-cracking net. DETAILED DESCRIPTION

[0031] Figures 1-9 It is the best embodiment of the utility model, the following will be combined with the drawings Figures 1-5 The utility model is further explained.

[0032] Embodiment 1: ​​​

[0033] As Figure 1 shown, a steel bar truss floor support plate comprises a bottom plate 2 and a steel bar truss arranged on the upper surface of the bottom plate 2. A plurality of connecting frames 6 are fixed on the surface of the bottom plate 2, and the steel bar truss is fixed on the surface of the connecting frames 6.

[0034] The arrangement length of the steel bar truss is greater than the arrangement length of the bottom plate 2, and the steel bar truss comprises two lower chord steel bars 3 arranged side by side. The connecting frames 6 are arranged at the bottom of the two lower chord steel bars 3, and the lower chord steel bars 3 are fixed on the surface of the bottom plate 2 through the connecting frames 6 at the bottom thereof. An upper chord steel bar 4 is arranged at the upper part between the two lower chord steel bars 3, and the upper chord steel bar 4 is arranged in a triangular shape between the two lower chord steel bars 3. The steel bar truss further comprises two web steel bars 5 arranged between the two lower chord steel bars 3 and the upper chord steel bar 4.

[0035] In combination Figures 2-3 , in the steel bar truss floor support plate, a bottom plate groove 1 is arranged on the lower surface of the bottom plate 2. In this embodiment, the bottom plate groove 1 is arranged on both sides of the length direction of the lower surface of the bottom plate 2. In combination Figure 4 , the bottom plate groove 1 comprises a bottom groove 8 opened along the length direction of the bottom plate 2, and the bottom groove 8 is arranged inward from the edge of the bottom plate 2. A groove surface groove 7 is further opened on the upper surface of the bottom groove 8, and a plurality of groove surface grooves 7 are arranged at intervals.

[0036] The specific construction process is as follows:

[0037] At the floor of the building, the steel bar truss floor support plates shown in Figure 1 are arranged in sequence. After the arrangement is completed, the two adjacent steel bar truss floor support plates are butted, and the bottom plate grooves 1 at the bottom of the two adjacent steel bar truss floor support plates are butted to form a completed groove part. Then, the mortar 9 is applied at the groove part to seal the gap at the butt joint of the two steel bar truss floor support plates, so as to avoid cracking at the butt joint of the two steel bar truss floor support plates after the wall decoration is performed later. The groove surface groove 7 arranged at the bottom plate groove 1 plays a role in improving the adhesion of the mortar 9. The anti-cracking net 10 is further arranged at the bottom of the mortar 9 to further improve the anti-cracking effect, as shown in Figure 5 .

[0038] Embodiment 2:

[0039] The difference between this embodiment and embodiment 1 is that the arrangement position of the bottom plate groove 1 is different. The steel bar truss floor support plate located at the edge does not need to be butt joint with the adjacent steel bar truss floor support plate, that is, the outer side of the steel bar truss floor support plate at the edge does not need to be decorated, so in this embodiment, the bottom plate groove 1 is only arranged at the lower surface of one side of the length direction of the bottom plate 2, as shown in Figure 6 .

[0040] Embodiment 3:

[0041] The difference between this embodiment and Embodiment 2 is that the bottom plate groove 1 is arranged only at the lower surface of one side of the bottom plate 2 along the width direction of the bottom plate 2, as shown in Figure 7

[0042] Embodiment 4:

[0043] As shown in Figures 8-9 The difference between this embodiment and Embodiment 1 is that only the bottom groove 8 is provided at the bottom plate groove 1, and the groove surface groove 7 is omitted.

[0044] The arrangement position and arrangement manner of the bottom plate groove 1 at the bottom of the bottom plate 2 can be any combination of the arrangement position and arrangement manner of Embodiments 1-4.

[0045] The above is only the preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to obtain equivalent embodiments. However, any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application without departing from the technical scheme of the present application shall still fall within the protection scope of the present application.​

Claims

1. A steel truss floor deck, comprising a base plate (2) and a steel truss fixed to the upper surface of the base plate (2), characterized in that: A bottom plate groove (1) is provided at the edge of at least one side of the lower surface of the bottom plate (2), and the bottom plate groove (1) is provided along the arrangement direction of the corresponding side of the bottom plate (2).

2. The steel truss floor decking according to claim 1, characterized in that: Several grooves (7) are also provided on the upper surface of the bottom groove (8).

3. The steel truss floor decking according to claim 1, characterized in that: The steel truss includes two lower chord steel bars (3) arranged side by side and an upper chord steel bar (4) arranged above the two lower chord steel bars (3). The two sides of the upper chord steel bar (4) are connected to the corresponding lower chord steel bars (3) through web steel bars (5).

4. The steel truss floor decking according to claim 1, characterized in that: A connecting frame (6) is fixed on the surface of the base plate (2), and a steel truss is fixed on the surface of the connecting frame (6).

5. A floor slab structure formed using the steel truss floor slabs according to any one of claims 1 to 4, comprising a plurality of steel truss floor slabs arranged side by side, characterized in that: Any two steel truss floor slabs are joined together to form a groove, and a sealing layer is provided at the groove to seal the gap between the two steel truss floor slabs.

6. The floor slab structure according to claim 5, characterized in that: The sealing layer is mortar (9).

7. The floor slab structure according to claim 5 or 6, characterized in that: A crack-prevention mesh (10) is also arranged at the bottom of the sealing layer.

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