Composite steel truss floor support plate

Abstract

The utility model discloses a composite steel truss floor support plate, which comprises a profiled steel sheet and a truss, the truss comprises a second rod body and two groups of oppositely arranged truss steel bar components, each truss steel bar component comprises a first rod body, a plurality of truss steel bars are welded on the first rod body along the length direction, and the second rod body is welded on the second rod body. The two truss steel bar assemblies are welded to the second rod body, a plurality of first protruding platforms and a plurality of second protruding platforms are arranged on the top of the profiled steel sheet, the trusses can be lapped on the top of the profiled steel sheet through the clamping grooves and the second protruding platforms, and therefore a space exists between the trusses and the profiled steel sheet. The space is formed between the truss and the profiled steel sheet, the concrete can fill the space so as to improve the holding property of the concrete and the steel truss floor support plate, one side of the truss is inserted into the clamping groove, the clamping groove plays a role in limiting the truss, and therefore after the two ends of the truss are welded to the profiled steel sheet, good stability can be achieved, welding spots between the truss and the profiled steel sheet are reduced, and the welding operation amount is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a composite steel truss floor deck. Background Art

[0002] With the continuous improvement of people's living standards and the acceleration of urban development, steel truss floor decks are increasingly used in the construction field due to their quick module and prefabrication capabilities. They are especially widely used in the construction of high-rise buildings, industrial plants, stations, stadiums, schools and other projects, and have gradually become an important part of modern building construction. This composite structural system uses special equipment to process the main load-bearing steel bars in the floor slab into steel trusses in the factory. The steel trusses are then welded to galvanized steel plates to form a unique composite structural system. During the construction phase of the structural floor slab, this system uses galvanized steel plates to replace the construction formwork. Together with the truss structure formed by welding the steel bars in the structure, it bears the deadweight of the floor slab concrete and the construction load. After pouring concrete, a steel truss concrete floor slab is formed. The emergence of steel truss concrete floor slabs has realized mechanized production, which is conducive to controlling the uniform spacing of the steel bars and the consistent thickness of the concrete cover, ensuring the construction quality of the floor slab. It can also significantly reduce the amount of on-site steel bar binding work, speed up the construction progress, and promote safe and civilized construction.

[0003] When assembling the steel truss floor deck, the trusses and the corrugated steel plates are only fixed by welding. Therefore, there are many welding points between the trusses and the corrugated steel plates, and the welding workload is large. In addition, the trusses fall directly on the corrugated steel plates, and there is no gap between the two. As a result, after pouring concrete, the bond strength between the concrete and the steel truss floor deck is poor. Utility Model Content

[0004] The main purpose of the utility model is to provide a composite steel truss floor deck, in which the truss can be placed on the top of the corrugated steel plate through the slot and the second raised platform, so that there is a space between the truss and the corrugated steel plate, and concrete can fill this space to improve the grip of the concrete and the steel truss floor deck, and one side of the truss is inserted into the slot, and the slot plays a limiting role on the truss, so the two ends of the truss will have good stability after being welded to the corrugated steel plate, reducing the number of welding points between the truss and the corrugated steel plate and reducing the amount of welding operations.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A composite steel truss floor deck, comprising a corrugated steel plate and a truss, the truss comprising a second rod and two groups of oppositely arranged truss steel bar assemblies, the truss steel bar assembly comprising a first rod, the first rod being welded with a plurality of truss steel bars along the length direction, the two groups of the truss steel bar assemblies being welded to the second rod, a plurality of first raised platforms and second raised platforms being provided on the top of the corrugated steel plate, a plurality of the first raised platforms and the second raised platforms being spaced apart, and slots being provided on both sides of a plurality of the first raised platforms, the truss steel bar bottom feet of one group of the truss steel bar assemblies of the truss being located in the slots, and the truss steel bar bottom feet of the other group of the truss steel bar assemblies being located on the top of the second raised platform.

[0007] Furthermore, bolts are vertically inserted into the truss steel bars, and the bolts are welded to the corrugated steel plates.

[0008] Furthermore, the corrugated steel plate has vertical plates on both sides, and the two groups of vertical plates are provided with positioning grooves on the opposite sides to each other for accommodating the truss steel bar feet.

[0009] Furthermore, the bottom of the positioning groove, the bottom of the locking groove and the top of the second raised platform are at the same height.

[0010] Furthermore, the corrugated steel plate, the vertical plate, the first raised platform and the second raised platform are integrally formed.

[0011] Furthermore, the truss steel bars are welded together by two groups of V-shaped steel bars.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The truss of the present invention can be placed on the top of the corrugated steel plate through the slot and the second raised platform, so that there is a space between the truss and the corrugated steel plate, and concrete can fill this space to improve the grip between the concrete and the steel truss floor deck. In addition, one side of the truss is inserted into the slot, and the slot limits the truss. Therefore, after the two ends of the truss are welded to the corrugated steel plate, they will have good stability, reduce the number of welding points between the truss and the corrugated steel plate, and reduce the amount of welding operations.

[0014] 2. The positioning groove of the present invention can accommodate the foot, so the foot on one side of the truss located on the side of the corrugated steel plate can be inserted into the positioning groove, thereby preventing the truss at this position from being suspended.

[0015] 3. The truss steel of the present invention is vertically inserted with studs, which are welded to the corrugated steel plate. Concrete can enter the truss steel bars and wrap around the studs, thereby further improving the grip between the concrete and the steel truss floor deck. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a first-view structural diagram of a composite steel truss floor deck of the present invention.

[0017] Figure 2 This is a second perspective structural diagram of a composite steel truss floor deck of the present invention.

[0018] Figure 3 The utility model is a schematic diagram of the truss structure of a composite steel truss floor deck.

[0019] Figure 4 The utility model is a schematic diagram of the corrugated steel plate structure of a composite steel truss floor deck.

[0020] Figure 5 The utility model is a schematic diagram of the truss reinforcement structure of a composite steel truss floor deck.

[0021] In the figure: 1. Corrugated steel plate; 101. Vertical plate; 1011. Positioning groove; 2. First raised platform; 201. Retaining groove; 3. Second raised platform; 4. Peg; 5. Truss; 501. Truss reinforcement assembly; 5011. Truss reinforcement; 5012. First rod; 5013. Base; 502. Second rod. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-5 As shown, a composite steel truss floor deck includes a corrugated steel plate 1 and a truss 5, the truss 5 includes a second rod 502 and two groups of truss steel bar assemblies 501 arranged opposite to each other, the truss steel bar assembly 501 includes a first rod 5012, the first rod 5012 is welded with a plurality of truss steel bars 5011 along the length direction, the two groups of truss steel bar assemblies 501 are welded to the second rod 502, a plurality of first raised platforms 2 and second raised platforms 3 are provided on the top of the corrugated steel plate 1, the plurality of first raised platforms 2 and second raised platforms 3 are arranged at intervals, and slots 201 are opened on both sides of the plurality of first raised platforms 2, the base 5013 of the truss steel bar 5011 of one group of truss steel bar assemblies 501 of the truss 5 is located in the slot 201, and the base 5013 of the truss steel bar 5011 of the other group of truss steel bar assemblies 501 is located on the top of the second raised platform 3.

[0024] In this embodiment, if Figure 3 and Figure 5 As shown, the truss steel bar 5011 is welded by two groups of V-shaped steel bars. Several truss steel bars 5011 are arranged along the length direction of the first rod body 5012. The first rod body 5012 is located at the welding position of the two groups of V-shaped steel bars. Figure 1and Figure 2 As shown, after the truss 5 is welded and formed, the foot 5013 on one side of the truss 5 is inserted into the slot 201. At this time, the foot 5013 on the other side of the truss 5 will be placed on the top of the second raised platform 3. Then, the two ends of the truss 5 are welded to the corrugated steel plate 1 to complete the assembly of the steel truss floor deck. When pouring concrete, there is space between the truss 5 and the corrugated steel plate 1, and the concrete can enter this space, thereby improving the grip of the concrete and the steel truss floor deck.

[0025] Among them, such as Figure 1 and Figure 2 As shown, a bolt 4 is vertically inserted into the truss steel bar 5011, and the bolt 4 is welded to the corrugated steel plate 1. Concrete can enter the truss steel bar 5011 and wrap around the outside of the bolt 4, thereby further improving the connection tightness between the concrete and the steel truss floor deck.

[0026] like Figure 1 and Figure 4 As shown, the corrugated steel plate 1 has vertical plates 101 on both sides, and the opposite sides of the two groups of vertical plates 101 are provided with positioning grooves 1011 for accommodating the footings 5013 of the truss steel bars 5011. The corrugated steel plate 1, the vertical plates 101, the first raised platform 2 and the second raised platform 3 are formed as one piece, wherein the bottom inner bottom of the positioning groove 1011, the bottom inner bottom of the clamping groove 201 and the top of the second raised platform 3 are at the same height, and the footing 5013 of the truss 5 located on the side of the corrugated steel plate 1 can be inserted into the positioning groove 1011, thereby avoiding the situation where part of the truss 5 on the side of the steel truss floor deck is suspended in the air, thereby improving the stability of the steel truss floor deck.

[0027] Working principle: first, lay the corrugated steel plate 1 at the preset position of the building floor plate, then insert the foot 5013 on one side of the truss 5 into the slot 201. At this time, the foot 5013 on the other side of the truss 5 will be placed on the top of the second raised platform 3, and the foot 5013 of the truss 5 on the side of the corrugated steel plate 1 will be inserted into the positioning groove 1011, so as to avoid the truss 5 on the side of the steel truss floor deck being partially suspended. Then, the two ends of the assembled truss 5 are welded to the corrugated steel plate 1. , thereby assembling and fixing the steel truss floor deck. At this time, there is a space between the truss and the corrugated steel plate 1. Therefore, when pouring concrete subsequently, the concrete can enter this space, thereby improving the grip between the concrete and the steel truss floor deck. In addition, studs 4 are vertically inserted into the truss steel bars 5011, and the studs 4 are welded to the corrugated steel plate 1. Concrete can enter the truss steel bars 5011, thereby wrapping around the outside of the studs 4, thereby further improving the connection tightness between the concrete and the steel truss floor deck.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A composite steel truss floor deck, comprising a corrugated steel plate (1) and a truss (5), wherein the truss (5) comprises a second rod (502) and two sets of truss steel bar assemblies (501) arranged opposite to each other, wherein the truss steel bar assemblies (501) comprise a first rod (5012), wherein the first rod (5012) is welded with a plurality of truss steel bars (5011) along the length direction, and the top ends of the two sets of truss steel bar assemblies (501) are welded to the second rod (502), characterized in that: A plurality of first raised platforms (2) and second raised platforms (3) are provided on the top of the corrugated steel plate (1), the plurality of first raised platforms (2) and second raised platforms (3) are arranged at intervals, and a plurality of first raised platforms (2) are provided with slots (201) on both sides thereof, the bottom feet (5013) of the truss steel bars (5011) of one group of truss steel bar assemblies (501) of the truss (5) are inserted into the slots (201), and the bottom feet (5013) of the truss steel bars (5011) of the other group of truss steel bar assemblies (501) are located on the top of the second raised platforms (3).

2. The composite steel truss floor deck according to claim 1, characterized in that: Bolts (4) are vertically inserted into the truss steel bars (5011), and the bolts (4) are welded to the corrugated steel plates (1).

3. The composite steel truss floor deck according to claim 1 or 2, characterized in that: The corrugated steel plate (1) has vertical plates (101) on both sides, and two sets of the vertical plates (101) are provided with positioning grooves (1011) on opposite sides for accommodating the bottom feet (5013) of the truss steel bars (5011).

4. The composite steel truss floor deck according to claim 3, characterized in that: The inner bottom of the positioning groove (1011), the inner bottom of the clamping groove (201) and the top of the second raised platform (3) are of the same height.

5. The composite steel truss floor deck according to claim 3, characterized in that: The corrugated steel plate (1), the vertical plate (101), the first raised platform (2) and the second raised platform (3) are integrally formed.

6. The composite steel truss floor deck according to claim 1, characterized in that: The truss steel bars (5011) are welded from two groups of V-shaped steel bars.

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