Fabricated steel bar truss floor support plate

Abstract

The utility model discloses a kind of fabricated steel bar truss floor support with support, it is related to building material technical field, including bottom form, the front and rear ends of the bottom form are respectively vertically welded with three groups of support vertical reinforcement, the bottom end of the bottom form is provided with the support assembly facilitating stacking. The fabricated steel bar truss floor support with support is provided with bottom form, support steel bar, upper chord reinforcement slot and fixed bolt, when using, the support steel bar on the bottom of upper layer steel bar truss floor support is just clamped on the three groups of upper chord steel bar of lower layer steel bar truss floor support when multilayer steel bar truss floor support is stacked, by position limitation, can prevent sliding and deviation, increase the stability of stacking, realize the function that bottom support facilitates stacking and stacking, solve the problem that the device does not have the function of bottom support facilitating stacking and stacking.

Description

Technical Field

[0001] This utility model relates to the field of building materials technology, specifically to a prefabricated reinforced steel truss floor deck. Background Technology

[0002] A truss constructed by resistance spot welding steel bars as the top chord, bottom chord, and web members is called a steel truss. A composite load-bearing slab formed by resistance spot welding the steel truss to the base slab is called a steel truss floor deck. Steel truss floor decks facilitate uniform steel bar spacing and consistent concrete cover thickness, improving the construction quality of the floor slab. Prefabricated steel truss floor decks can significantly reduce on-site steel bar tying work, accelerate construction progress, increase construction safety, and achieve civilized construction practices.

[0003] Most of the steel truss floor decks commonly found on the market today are similar in overall structure, with steel trusses and a base plate as the main components. The steel trusses include upper chords, lower chords, and web members. However, they have some functional deficiencies in actual use and have room for improvement. For example, due to their shape characteristics, the steel trusses on the base plate are raised high. When stacking, the contact area between the upper and lower layers is small and the gaps are large, making it easy for the center of gravity to shift and slip. They also do not have the function of bottom support to facilitate stacking.

[0004] Now, a novel prefabricated supported steel truss floor deck is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a prefabricated steel truss floor deck with support to solve the problem mentioned in the background art of not having bottom support for easy stacking.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated reinforced steel truss floor slab with support, including a bottom formwork. Three sets of vertical support bars are vertically welded to the front and rear ends of the bottom formwork. Three sets of horizontal support bars are horizontally welded to the front and rear ends of the top of the bottom formwork. Lower chord bars are longitudinally welded to both sides of the top of the horizontal support bars. Upper chord bars are longitudinally welded between the two sets of vertical support bars. Web bars are welded to the left and right sides of the upper chord bars. Six sets of vertical ribs are longitudinally welded to the top of the bottom formwork. A support assembly for easy stacking is provided at the bottom of the bottom formwork.

[0007] The support assembly includes three sets of support steel bars, which are horizontally arranged at the bottom end of the bottom template. The bottom end of each support steel bar has three sets of upper chord rib slots, and fixing bolts are inserted into both sides of the bottom of each support steel bar.

[0008] As a further technical solution of this utility model, the supporting steel bars are arranged at equal intervals, and the top of the supporting steel bars and the bottom of the bottom template are closely fitted together.

[0009] As a further technical solution of this utility model, the shape and size of the inside of the upper chord bar groove are adapted to the shape and size of the web bar and the top of the upper chord bar, and the positions of the upper chord bar groove and the upper chord bar are corresponding.

[0010] As a further technical solution of this utility model, the fixing bolt passes through the supporting steel bar and extends into the interior of the bottom template, the bottom end of the lower chord steel bar is welded to the web steel bar, and the top end of the upright rib is welded to the web steel bar.

[0011] As a further technical solution of this utility model, a concave connecting strip is welded to the left side of the bottom template, and a T-shaped groove is provided inside the left side of the concave connecting strip. Three sets of first positioning screw holes are opened at the top of the concave connecting strip. A convex connecting strip is welded to the right side of the bottom template, and a T-shaped strip is provided on the right side of the convex connecting strip. Three sets of second positioning screw holes are opened at the top of the T-shaped strip. The shape and size of the outside of the T-shaped strip are adapted to the shape and size of the inside of the T-shaped groove. The position and size of the first positioning screw holes and the second positioning screw holes correspond one-to-one.

[0012] As a further technical solution of this utility model, three sets of steel bar retaining rings are respectively provided at the upper and lower ends of the upper chord steel bar, a steel bar groove is provided on the inner side of the steel bar retaining ring, and welding plates are welded on the left and right sides of the steel bar retaining ring. The shape and size of the steel bar groove are adapted to the shape and size of the web steel bar and the upper chord steel bar. The upper and lower steel bar retaining rings are fixed by welding plates in pairs.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the prefabricated steel truss floor deck not only realizes the function of bottom support for easy stacking, but also realizes the function of easy butt connection, and also realizes the function of strengthening the welding position of the upper chord web members;

[0014] (1) By setting up a bottom template, supporting steel bars, upper chord bar slots and fixing bolts, when in use, the vertical steel bars of the support, the horizontal steel bars of the support, the lower chord steel bars, the upright ribs, the web steel bars and the upper chord steel bars form a steel truss, which together with the bottom template forms a steel truss floor slab. When multiple layers of steel truss floor slabs are stacked, the three sets of upper chord bar slots on the supporting steel bars at the bottom of the upper steel truss floor slab are precisely locked on the three sets of upper chord steel bars of the lower steel truss floor slab. By limiting the position, sliding and displacement can be prevented, the stability of stacking can be increased, and the function of bottom support for easy stacking can be realized.

[0015] (2) By setting concave connecting strip, first positioning screw eye, T-slot, convex connecting strip, T-slot and second positioning screw eye, when two sets of steel truss floor decks are spliced, the T-slot on the corresponding convex connecting strip of one set of steel truss floor decks slides into the T-slot on the concave connecting strip of the other set of steel truss floor decks. After being fully pushed in, the first positioning screw eye and the second positioning screw eye are aligned. Bolts can be driven in for reinforcement, thus realizing the function of easy docking connection.

[0016] (3) By setting up a steel bar retaining ring, a steel bar slot and a welding plate, when in use, the welding surface between the web bar and the top chord bar is arc-shaped. The steel bar retaining ring is fitted at the welding position, and then the welding plates of the upper and lower sets of steel bar retaining rings are welded to strengthen the reinforcement. This can prevent the web bar and the top chord bar from detaching from the weld, and realize the function of strengthening the welding position of the top chord web bar. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present utility model;

[0018] Figure 2 This is a bottom view of the bottom template structure of this utility model;

[0019] Figure 3 This is a top view of the structure of this utility model;

[0020] Figure 4 This is an enlarged front view of the concave connecting strip and the convex connecting strip of this utility model in their docking state;

[0021] Figure 5 This is a side view enlarged structural schematic diagram of the steel bar retaining ring of this utility model.

[0022] In the diagram: 1. Bottom template; 2. Supporting steel bar; 3. Upper chord reinforcement slot; 4. Fixing bolt; 5. Support vertical reinforcement; 6. Support horizontal reinforcement; 7. Lower chord reinforcement; 8. Vertical rib; 9. Web reinforcement; 10. Upper chord reinforcement; 11. Concave connecting strip; 12. First positioning screw eye; 13. T-slot; 14. Convex connecting strip; 15. T-strip; 16. Second positioning screw eye; 17. Reinforcement retainer; 18. Reinforcement slot; 19. Welding piece. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: Please refer to Figure 1-5 A prefabricated reinforced steel truss floor deck includes a bottom formwork 1. Three sets of vertical support bars 5 are vertically welded to the front and rear ends of the bottom formwork 1. Three sets of horizontal support bars 6 are horizontally welded to the front and rear ends of the top of the bottom formwork 1. Lower chord bars 7 are longitudinally welded to both sides of the top of the horizontal support bars 6. Upper chord bars 10 are longitudinally welded between the two sets of vertical support bars 5. Web bars 9 are welded to the left and right sides of the upper chord bars 10. Six sets of vertical ribs 8 are longitudinally welded to the top of the bottom formwork 1. A support component for easy stacking is provided at the bottom of the bottom formwork 1.

[0025] Please see Figure 1-5 A prefabricated steel truss floor deck also includes a support assembly, which includes three sets of support steel bars 2. The three sets of support steel bars 2 are respectively arranged horizontally at the bottom end of the bottom formwork 1. The bottom end of the support steel bars 2 is provided with three sets of upper chord bar slots 3. Fixing bolts 4 are inserted into both sides of the bottom of the support steel bars 2.

[0026] The supporting steel bars 2 are arranged at equal intervals. The top of the supporting steel bars 2 and the bottom of the bottom template 1 are closely fitted. The shape and size of the upper chord bar groove 3 are matched with the shape and size of the top of the web bar 9 and the upper chord bar 10. The positions of the upper chord bar groove 3 and the upper chord bar 10 are corresponding. The fixing bolt 4 passes through the supporting steel bars 2 and extends into the interior of the bottom template 1. The bottom of the lower chord bar 7 is welded to the web bar 9. The top of the upright rib 8 is welded to the web bar 9, which facilitates stacking.

[0027] Specifically, such as Figure 1 and Figure 2 As shown, when multi-layer steel truss floor slabs are stacked, the three sets of upper chord bar slots 3 on the support steel bars 2 at the bottom of the upper steel truss floor slab are precisely locked onto the three sets of upper chord bars 10 of the lower steel truss floor slab. By limiting the position, sliding and displacement can be prevented, and the stability of stacking can be increased.

[0028] A concave connecting strip 11 is welded to the left side of the bottom template 1. A T-slot 13 is provided inside the left side of the concave connecting strip 11. Three sets of first positioning screw holes 12 are opened at the top of the concave connecting strip 11. A convex connecting strip 14 is welded to the right side of the bottom template 1. A T-shaped strip 15 is provided on the right side of the convex connecting strip 14. Three sets of second positioning screw holes 16 are opened at the top of the T-shaped strip 15. The external shape and size of the T-shaped strip 15 are adapted to the internal shape and size of the T-slot 13. The positions and dimensions of the first positioning screw holes 12 and the second positioning screw holes 16 correspond one-to-one, which facilitates docking and connection.

[0029] Specifically, such as Figure 1 , Figure 3 and Figure 4As shown, when splicing two sets of steel truss floor decking, the T-shaped strip 15 on the corresponding convex connecting strip 14 is slid into the T-slot 13 on the concave connecting strip 11 of the other set of steel truss floor decking. After being fully pushed in, the first positioning screw hole 12 is aligned with the second positioning screw hole 16, and bolts are driven in for reinforcement.

[0030] Three sets of steel bar clasps 17 are provided at the upper and lower ends of the top chord steel bar 10. A steel bar groove 18 is provided on the inner side of the steel bar clasps 17. Welding plates 19 are welded to the left and right sides of the steel bar clasps 17. The shape and size of the steel bar groove 18 are compatible with the shape and size of the web steel bar 9 and the outer shape and size of the top chord steel bar 10. The steel bar clasps 17 are fixed by welding the upper and lower two pairs of steel bars 17 through the welding plates 19 to reinforce the steel bar welding position.

[0031] Specifically, such as Figure 1 , Figure 3 and Figure 5 As shown, the welding surface between the web reinforcement 9 and the top chord reinforcement 10 is arc-shaped. A reinforcement retainer 17 is fitted at the welding position, and then the welding pieces 19 of the upper and lower sets of reinforcement retainers 17 are welded together to reinforce them, which can prevent the web reinforcement 9 and the top chord reinforcement 10 from detaching.

[0032] Working Principle: In use, this utility model firstly forms a steel truss by the vertical reinforcing bars 5, horizontal reinforcing bars 6, lower chord reinforcing bars 7, upright ribs 8, web reinforcing bars 9, and upper chord reinforcing bars 10. This truss, together with the bottom formwork 1, forms a steel truss floor slab. When multiple layers of steel truss floor slabs are stacked, the three sets of upper chord reinforcing bar slots 3 on the supporting steel bars 2 at the bottom of the upper steel truss floor slab are precisely engaged with the three sets of upper chord reinforcing bars 10 on the lower steel truss floor slab. This positional constraint prevents slippage and displacement, increasing the stability of the stack. When splicing two sets of steel truss floor slabs, the T-shaped strips 15 on the corresponding convex connecting strips 14 are slid into the T-slots 13 on the concave connecting strips 11 of the other set of steel truss floor slabs. After being fully pushed in, the first positioning screw hole 12 aligns with the second positioning screw hole 16, and bolts are driven in for reinforcement. The welding surface between the web reinforcement 9 and the top chord reinforcement 10 is arc-shaped. A reinforcement retainer 17 is fitted at the welding position, and then the welding pieces 19 of the upper and lower sets of reinforcement retainers 17 are welded together to reinforce them, which can prevent the web reinforcement 9 and the top chord reinforcement 10 from detaching.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A prefabricated reinforced steel truss floor slab with support, comprising a bottom formwork (1), characterized in that: The bottom template (1) has three sets of vertical support bars (5) welded vertically at its front and rear ends respectively. The bottom template (1) has three sets of horizontal support bars (6) welded horizontally at its top front and rear ends respectively. The top of the horizontal support bars (6) has lower chord bars (7) welded longitudinally on both sides respectively. The two sets of vertical support bars (5) have upper chord bars (10) welded longitudinally between them. The upper chord bars (10) have web bars (9) welded on both sides respectively. The bottom template (1) has six sets of vertical ribs (8) welded longitudinally at its top end. The bottom of the bottom template (1) is provided with a support component for easy stacking. The support assembly includes three sets of support steel bars (2), which are arranged horizontally at the bottom end of the bottom template (1). The bottom end of the support steel bars (2) is provided with three sets of upper chord grooves (3), and fixing bolts (4) are inserted into both sides of the bottom of the support steel bars (2).

2. The prefabricated reinforced steel truss floor slab according to claim 1, characterized in that: The supporting steel bars (2) are arranged at equal intervals, and the top of the supporting steel bars (2) and the bottom of the bottom template (1) are closely fitted together.

3. The prefabricated reinforced steel truss floor slab according to claim 1, characterized in that: The shape and size of the upper chord bar groove (3) are adapted to the shape and size of the top of the web bar (9) and the upper chord bar (10), and the positions of the upper chord bar groove (3) and the upper chord bar (10) are corresponding.

4. The prefabricated reinforced steel truss floor slab according to claim 1, characterized in that: The fixing bolt (4) passes through the supporting steel bar (2) and extends into the interior of the bottom template (1). The bottom end of the lower chord steel bar (7) and the web steel bar (9) are welded together. The top end of the upright rib (8) and the web steel bar (9) are welded together.

5. A prefabricated reinforced steel truss floor slab according to claim 1, characterized in that: A concave connecting strip (11) is welded to the left side of the bottom template (1). A T-groove (13) is provided inside the left side of the concave connecting strip (11). Three sets of first positioning screw holes (12) are opened at the top of the concave connecting strip (11). A convex connecting strip (14) is welded to the right side of the bottom template (1). A T-shaped strip (15) is provided on the right side of the convex connecting strip (14). Three sets of second positioning screw holes (16) are opened at the top of the T-shaped strip (15). The shape and size of the outside of the T-shaped strip (15) are adapted to the shape and size of the inside of the T-groove (13). The position and size of the first positioning screw holes (12) and the second positioning screw holes (16) correspond one-to-one.

6. The prefabricated reinforced steel truss floor slab according to claim 1, characterized in that: Three sets of steel bar clasps (17) are respectively provided at the upper and lower ends of the upper chord steel bar (10). A steel bar groove (18) is provided on the inner side of the steel bar clasps (17). Welding plates (19) are welded to the left and right sides of the steel bar clasps (17). The shape and size of the steel bar groove (18) are compatible with the shape and size of the web steel bar (9) and the upper chord steel bar (10). The steel bar clasps (17) are fixed by welding the upper and lower clasps (19) together.

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