A weld-free and dismantling-free steel truss floor deck

Abstract

The present invention discloses a weld-free, dismantling-free steel truss floor deck, which belongs to the technical field of building materials. A weld-free, dismantling-free steel truss floor deck comprises a floor deck assembly, wherein the upper end surface of the floor deck assembly is connected to a plurality of steel truss assemblies, wherein the plurality of steel truss assemblies are connected by transverse steel bars, and the web length can be dynamically adapted to different building spans through a flexible combination of a web connecting assembly, a U-shaped connecting steel bar, a first web connecting steel bar and a first upper chord steel bar fixing block. At the same time, the various components of the steel truss assembly are mainly composed of a combination of circular connecting steel bars and hole plug-ins. In this way, the steel truss assembly avoids welding operations by construction workers through mechanical connection, thereby avoiding the occurrence of false welding and leaking welding, thereby improving the installation rate of the steel truss floor deck, and ultimately improving the overall performance of the floor deck.

Description

Technical Field

[0001] The present invention relates to the technical field of building materials, and more particularly to a weld-free and dismantling-free steel bar truss floor deck. Background Art

[0002] In construction projects, reinforced truss floor decking is a commonly used building component that can serve as a formwork during the construction phase and bear the load together with concrete during the use phase. It has the advantages of fast construction speed and good structural performance.

[0003] At present, the steel truss floor decking plate first needs to customize the length of the web reinforcement according to the span of the building at the manufacturer, and then the joints of the accessories required for the steel truss floor decking plate are connected together by welding. This requires construction workers to be in a squatting state for a long time. At the same time, because the construction workers are in a welding state for a long time, their physical strength and attention are reduced as the working time increases, so that the welding strength of the construction workers is different each time, and then cold welding and leaking welding may occur, thereby reducing the overall performance of the floor decking plate. Summary of the Invention

[0004] The purpose of the present invention is to provide a weld-free and dismantling-free steel truss floor deck to solve the problems raised in the above-mentioned background technology.

[0005] A weld-free, dismantling-free steel truss floor deck comprises a floor deck assembly, wherein the upper end surface of the floor deck assembly is connected to a plurality of steel truss assemblies, wherein the plurality of steel truss assemblies are connected by transverse steel bars, and wherein a plurality of transverse steel bars penetrate the inner cavities of the plurality of steel truss assemblies, and the plurality of steel truss assemblies are connected together by the transverse steel bars;

[0006] The floor deck assembly includes a floor deck, one end of the floor deck is connected to a first L-shaped connecting plate, and the end of the floor deck away from the first L-shaped connecting plate is connected to a second L-shaped connecting plate, the upper end surfaces of the floor deck are connected to a plurality of support vertical steel bars, the upper end surface of each of the support vertical steel bars is provided with a first circular connecting hole, and the first L-shaped connecting plate is matched with the second L-shaped connecting plate, when the second L-shaped connecting plate in the other floor deck assembly coincides with the first L-shaped connecting plate in the floor deck assembly, the two floor deck assemblies are connected together;

[0007] The steel bar truss assembly includes an upper chord steel bar, both ends of the upper chord steel bar are connected to L-shaped connecting steel bars, a vertical steel bar support assembly is connected below each of the L-shaped connecting steel bars, the inner cavity of each vertical steel bar support assembly is connected to a horizontal connecting steel bar, both ends of the horizontal connecting steel bar are connected to the lower chord steel bar, one end of the lower chord steel bar facing the middle part of the horizontal connecting steel bar is connected to a web steel bar assembly, and the outer surface of each lower chord steel bar is connected to a plurality of transverse steel bar support assemblies.

[0008] Preferably, both ends of the L-shaped connecting steel bar are connected to the first circular connecting steel bar, both ends of the upper chord steel bar are provided with a second circular connecting hole, both ends of each horizontal connecting steel bar are connected to the second circular connecting steel bar, and both ends of each lower chord steel bar are provided with a third circular connecting hole, and the first circular connecting steel bar is matched with the first circular connecting hole and the second circular connecting hole, and the second circular connecting steel bar is matched with the third circular connecting hole.

[0009] Preferably, the vertical steel bar support assembly includes a first circular connecting block, a first circular hole is opened on the outer surface of the first circular connecting block, and one end of the first circular connecting block is connected to a first semi-arc support block, the end of the first semi-arc support block away from the first circular connecting block is connected to a first rotating rod, the upper end surface of the first rotating rod is connected to a second semi-arc support block, and the first semi-arc support block and the second semi-arc support block form a first circular fixing hole, the first circular fixing hole fits with the horizontal connecting steel bar, and the first circular hole fits with the vertical steel bar of the support.

[0010] Preferably, the web reinforcement assembly includes several web connection assemblies, both sides of the lower end of the web connection assembly are connected with U-shaped connecting steel bars, the end of the U-shaped connecting steel bar away from the web connection assembly is connected to the first web connection steel bar, the end of the first web connection steel bar away from the U-shaped connecting steel bar is connected to the first upper chord steel bar fixing block, and the outer surface of the upper chord steel bar fixing block is provided with a second circular fixing hole, and the second circular fixing hole fits with the upper chord steel bar.

[0011] Preferably, the lower surfaces of both ends of the first upper chord steel bar fixing block are connected with third circular connecting steel bars, both ends of the first web connecting steel bar are provided with fourth circular connecting holes, both end surfaces of the U-shaped connecting steel bar are connected with fourth circular connecting steel bars, and the third circular connecting steel bar and the fourth circular connecting steel bar are both fitted with the fourth circular connecting holes.

[0012] Preferably, the web member connection assembly includes a second upper chord steel bar fixing block, fifth circular connecting steel bars are connected to both sides of one end of the second upper chord steel bar fixing block, the end of the fifth circular connecting steel bar away from the second upper chord steel bar fixing block is connected to the second web member connecting steel bar, and a third circular fixing hole is opened on the outer surface of the second upper chord steel bar fixing block, and the third circular fixing hole is matched with the upper chord steel bar.

[0013] Preferably, the surfaces on both sides of the end of the second upper chord steel bar fixing block away from the fifth circular connecting steel bar are connected to the sixth circular connecting steel bars, the end of the sixth circular connecting steel bar away from the second upper chord steel bar fixing block is connected to the third web connecting steel bar, and the third web connecting steel bar and the second web connecting steel bar have the same structure as the first web connecting steel bar, then the fifth circular connecting steel bar and the sixth circular connecting steel bar are both matched with the fourth circular connecting hole opened on the surface of the first web connecting steel bar.

[0014] Preferably, the transverse steel bar support assembly includes a third semi-arc support block, one end of the third semi-arc support block is connected to the second rotating rod, the upper end surface of the second rotating rod is connected to the fourth semi-arc support block, the upper end surface of the fourth semi-arc support block is connected to the connecting block, the surface of the connecting block is provided with a fourth circular fixing hole, and the fourth circular fixing hole is matched with the transverse steel bar, and the fourth circular fixing hole coincides with the transverse steel bar, so that several steel bar truss assemblies are fixed together.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. In the present invention, the web length can be dynamically adapted to different building spans through the flexible combination of the web connecting assembly, the U-shaped connecting steel bars, the first web connecting steel bars and the first upper chord steel bar fixing block. At the same time, the various components of the steel truss assembly are mainly composed of a combination of circular connecting steel bars and hole plug-ins. In this way, the steel truss assembly is mechanically connected to avoid construction workers from performing welding operations, thereby avoiding the occurrence of cold welding and leaking welding, thereby improving the installation rate of the steel truss floor deck and ultimately improving the overall performance of the floor deck.

[0017] 2. In the present invention, when the outer side of the transverse steel bar support assembly contacts the surface of the web connecting steel bar, and the lower chord steel bar passes through the fifth circular fixing hole and is connected to the second circular connecting steel bar, the surface of one end of the lower chord steel bar is located at the angle of the web connecting steel bar and fits the surface of the web connecting steel bar. Then, the transverse steel bar passes through the fourth circular fixing hole to connect several steel bar truss assemblies together. In this way, the lower chord steel bar, the web connecting steel bar and the transverse steel bar are fixed by the interaction force, so that the lower chord steel bar and the transverse steel bar share the force exerted on the web connecting steel bar, thereby forming a multi-level stable triangular structure and improving the overall stiffness.

[0018] 3. In the present invention, the various components in the steel truss floor deck are connected mechanically, so that construction workers only need to perform simple plug-in operations on site, thereby improving the installation rate of the steel truss floor deck and reducing the high-altitude working time of construction workers. Moreover, since the various components are in an unspliced ​​state during transportation, more components can be transported in the same space, thereby improving the transportation rate of the steel truss floor deck, reducing the time required for the installation of the steel truss floor deck, and improving the overall work efficiency of the project. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic structural diagram of a floor deck assembly according to the present invention;

[0021] Figure 3 It is a schematic structural diagram of the steel bar truss assembly of the present invention;

[0022] Figure 4 This is a schematic diagram of the partially disassembled structure of the steel bar truss assembly of the present invention;

[0023] Figure 5 This is a schematic structural diagram of a vertical steel bar support assembly according to the present invention;

[0024] Figure 6 This is a schematic structural diagram of a web reinforcement assembly according to the present invention;

[0025] Figure 7 It is a partial structural schematic diagram of the web reinforcement assembly of the present invention;

[0026] Figure 8 It is a schematic structural diagram of the web connecting assembly of the present invention;

[0027] Figure 9 This is a schematic diagram of the structure of the transverse steel bar support assembly of the present invention.

[0028] Explanation of the numbers in the figure: 1. Floor deck assembly; 101. Floor deck; 102. First L-shaped connecting plate; 103. Second L-shaped connecting plate; 104. Support vertical steel bar; 105. First circular connecting hole; 2. Steel truss assembly; 201. Upper chord steel bar; 202. L-shaped connecting steel bar; 203. Vertical steel bar support assembly; 204. Horizontal connecting steel bar; 205. Lower chord steel bar; 206. Web bar steel bar assembly; 207. Transverse steel bar support assembly; 208. First circular connecting steel bar; 209. Second circular connecting hole; 210. Second circular connecting steel bar; 211. Third circular connecting hole; 212. First circular connecting block; 213. First circular hole; 214. First semi-arc support block ; 215. First rotating rod; 216. Second semi-arc supporting block; 217. Web member connecting assembly; 218. U-shaped connecting steel bar; 219. First web member connecting steel bar; 220. First upper chord steel bar fixing block; 221. Third circular connecting steel bar; 222. Fourth circular connecting hole; 223. Second upper chord steel bar fixing block; 224. Fifth circular connecting steel bar; 225. Second web member connecting steel bar; 226. Sixth circular connecting steel bar; 227. Third web member connecting steel bar; 228. Third semi-arc supporting block; 229. Second rotating rod; 230. Fourth semi-arc supporting block; 231. Connecting block; 232. Fourth circular fixing hole; 233. Fourth circular connecting steel bar; 3. Transverse steel bar. DETAILED DESCRIPTION

[0029] Example: See Figure 1 A weld-free, non-disassembly-required steel truss floor deck comprises a floor deck assembly 1, wherein the upper end surface of the floor deck assembly 1 is connected to a plurality of steel truss assemblies 2, wherein the plurality of steel truss assemblies 2 are connected by transverse steel bars 3, and wherein the plurality of steel truss assemblies 2 have a plurality of transverse steel bars 3 running through the inner cavities of the plurality of steel truss assemblies 2, and wherein the plurality of steel truss assemblies 2 are connected together by the transverse steel bars 3;

[0030] See also Figure 2 The floor deck assembly 1 includes a floor deck 101, one end of the floor deck 101 is connected to a first L-shaped connecting plate 102, and the end of the floor deck 101 away from the first L-shaped connecting plate 102 is connected to a second L-shaped connecting plate 103, and the upper end surfaces of the floor deck 101 are connected to a plurality of supporting vertical steel bars 104, and the upper end surface of each supporting vertical steel bar 104 is provided with a first circular connecting hole 105, and the first L-shaped connecting plate 102 is matched with the second L-shaped connecting plate 103. When the second L-shaped connecting plate 103 in another floor deck assembly 1 coincides with the first L-shaped connecting plate 102 in the floor deck assembly 1, the two floor deck assemblies 1 are connected together;

[0031] See also Figure 3The steel truss assembly 2 includes an upper chord steel bar 201, both ends of the upper chord steel bar 201 are connected to L-shaped connecting steel bars 202, each L-shaped connecting steel bar 202 is connected to a vertical steel bar support assembly 203, the inner cavity of each vertical steel bar support assembly 203 is connected to a horizontal connecting steel bar 204, both ends of the horizontal connecting steel bar 204 are connected to a lower chord steel bar 205, one end of the lower chord steel bar 205 facing the middle part of the horizontal connecting steel bar 204 is connected to a web steel bar assembly 206, and the outer surface of each lower chord steel bar 205 is connected to a plurality of transverse steel bar support assemblies 207.

[0032] Specifically, through the flexible combination of the web connecting assembly 217, the U-shaped connecting steel bars 218, the first web connecting steel bars 219 and the first upper chord steel bar fixing block 220, the web length can be dynamically adapted to different building spans. At the same time, the various components of the steel truss assembly 2 are mainly composed of a combination of circular connecting steel bars and hole plug-ins. In this way, the steel truss assembly 2 avoids welding operations by construction workers through mechanical connection, thereby avoiding the occurrence of cold welding and leaking welding, thereby improving the installation rate of the steel truss floor deck and ultimately improving the overall performance of the floor deck.

[0033] See also Figure 4 Both ends of the L-shaped connecting steel bar 202 are connected to the first circular connecting steel bar 208, both ends of the upper chord steel bar 201 are provided with a second circular connecting hole 209, both ends of each horizontal connecting steel bar 204 are connected to the second circular connecting steel bar 210, and both ends of each lower chord steel bar 205 are provided with a third circular connecting hole 211, and the first circular connecting steel bar 208 is matched with the first circular connecting hole 105 and the second circular connecting hole 209, and the second circular connecting steel bar 210 is matched with the third circular connecting hole 211, and a reset spring is provided in the inner cavity at the lower end of the L-shaped connecting steel bar 202, and the lower end of the reset spring is connected to the first circular connecting steel bar 208, so that the first circular connecting steel bar 208 has a telescopic function.

[0034] See also Figure 5 The vertical steel bar support assembly 203 includes a first circular connecting block 212, a first circular hole 213 is opened on the outer surface of the first circular connecting block 212, and one end of the first circular connecting block 212 is connected to a first semi-arc support block 214, and the end of the first semi-arc support block 214 away from the first circular connecting block 212 is connected to a first rotating rod 215, and the upper end surface of the first rotating rod 215 is connected to a second semi-arc support block 216, and the first semi-arc support block 214 and the second semi-arc support block 216 form a first circular fixing hole, the first circular fixing hole is matched with the horizontal connecting steel bar 204, and the first circular hole 213 is matched with the support vertical steel bar 104.

[0035] See also Figure 6and Figure 7 The web reinforcement assembly 206 includes several web connection assemblies 217, both sides of the lower end of the web connection assembly 217 are connected with U-shaped connecting steel bars 218, the end of the U-shaped connecting steel bar 218 away from the web connection assembly 217 is connected to the first web connection steel bar 219, the end of the first web connection steel bar 219 away from the U-shaped connecting steel bar 218 is connected to the first upper chord steel bar fixing block 220, and the outer surface of the first upper chord steel bar fixing block 220 is provided with a second circular fixing hole, which fits with the upper chord steel bar 201.

[0036] See also Figure 6 and Figure 7 The lower surfaces of both ends of the first upper chord steel bar fixing block 220 are connected with the third circular connecting steel bar 221, both ends of the first web connecting steel bar 219 are provided with fourth circular connecting holes 222, and the surfaces of both ends of the U-shaped connecting steel bar 218 are connected with fourth circular connecting steel bars 233, and the third circular connecting steel bar 221 and the fourth circular connecting steel bar 233 are both fitted with the fourth circular connecting hole 222.

[0037] The various components in the steel truss floor deck are connected mechanically, so that construction workers only need to perform simple plug-in operations on site, thereby increasing the installation rate of the steel truss floor deck and reducing the construction workers' high-altitude working time. Not only that, since the various components are in an unspliced ​​state during transportation, more components can be transported in the same space, thereby increasing the transportation rate of the steel truss floor deck, reducing the time required for the installation of the steel truss floor deck, and improving the overall work efficiency of the project.

[0038] See also Figure 8 The web member connection assembly 217 includes a second upper chord steel bar fixing block 223, and the fifth circular connecting steel bar 224 is connected to both sides of one end of the second upper chord steel bar fixing block 223, and the end of the fifth circular connecting steel bar 224 away from the second upper chord steel bar fixing block 223 is connected to the second web member connecting steel bar 225, and the outer surface of the second upper chord steel bar fixing block 223 is provided with a third circular fixing hole, and the third circular fixing hole is matched with the upper chord steel bar 201.

[0039] See also Figure 8The surfaces of both sides of the end of the second upper chord steel bar fixing block 223 away from the fifth circular connecting steel bar 224 are connected with the sixth circular connecting steel bar 226, and the end of the sixth circular connecting steel bar 226 away from the second upper chord steel bar fixing block 223 is connected with the third web connecting steel bar 227, and the third web connecting steel bar 227 and the second web connecting steel bar 225 have the same structure as the first web connecting steel bar 219, then the fifth circular connecting steel bar 224 and the sixth circular connecting steel bar 226 are both matched with the fourth circular connecting hole 222 opened on the surface of the first web connecting steel bar 219.

[0040] See also Figure 9 The transverse steel bar support assembly 207 includes a third semi-arc support block 228, one end of the third semi-arc support block 228 is connected to the second rotating rod 229, the upper end surface of the second rotating rod 229 is connected to the fourth semi-arc support block 230, the upper end surface of the fourth semi-arc support block 230 is connected to the connecting block 231, and the surface of the connecting block 231 is provided with a fourth circular fixing hole 232, and the fourth circular fixing hole 232 is matched with the transverse steel bar 3. The fourth circular fixing hole 232 coincides with the transverse steel bar 3 to fix several steel bar truss assemblies 2 together, and the third semi-arc support block 228 and the fourth semi-arc support block 230 form a fifth circular fixing hole, and the fifth circular hole is matched with the lower chord steel bar 205.

[0041] When the outer side of the transverse steel bar support assembly 207 contacts the surface of the web connecting steel bar, and the lower chord steel bar 205 passes through the fifth circular fixing hole and is connected to the second circular connecting steel bar 210, the surface of one end of the lower chord steel bar 205 will be located at the angle of the web connecting steel bar and fit the surface of the web connecting steel bar. Then, the transverse steel bar 3 passes through the fourth circular fixing hole 232 to connect several steel bar truss assemblies 2 together. In this way, the lower chord steel bar 205, the web connecting steel bar and the transverse steel bar 3 will be fixed through the interaction force, so that the lower chord steel bar 205 and the transverse steel bar 3 share the force exerted on the web connecting steel bar, thereby forming a multi-level stable triangular structure and improving the overall stiffness.

[0042] Working principle: First, move the floor decking 101 to an open area near the location where construction is required. At this time, move the first circular hole 213 opened on the surface of the first circular connecting block 212 downward along the supporting vertical steel bar 104 until the bottom end of the supporting vertical steel bar 104 contacts the upper end surface of the floor decking 101. Then, rotate the second semi-arc supporting block 216 so that the second semi-arc supporting block 216 and the first semi-arc supporting block 214 are in an open state, and place the horizontal connecting steel bar 204 in the groove at the upper end of the first semi-arc supporting block 214. Then, rotate the first rotating rod 215 to close the first semi-arc supporting block 214 and support the horizontal connecting steel bar 204.

[0043] When the horizontal connecting steel bars 204 are installed, the fifth circular connecting steel bar 224 and the sixth circular connecting steel bar 226 are respectively overlapped with the fourth circular connecting hole 222 in the second web connecting steel bar 225 and the fourth circular connecting hole 222 in the third web connecting steel bar 227, thereby assembling a plurality of web connecting assemblies 217, and then the fourth circular connecting steel bar 233 connected to one end of the U-shaped connecting steel bar 218 and the third circular connecting steel bar 221 connected to both ends of the first upper chord steel bar fixing block 220 are overlapped with the fourth circular connecting hole 222 opened at both ends of the first web connecting steel bar 219, and then the fourth circular connecting steel bar 233 connected to the other end of the U-shaped connecting steel bar 218 is overlapped with the fourth circular connecting hole 222 opened at both ends of the web connecting steel bar, so that the plurality of web connecting assemblies 217, the U-shaped connecting steel bar 218, the first web connecting steel bar 219 and the first upper chord steel bar fixing block 220 form web reinforcement, until the length of the web reinforcement adapts to the length of the upper chord steel bar 201;

[0044] When the length of the web reinforcement splicing reaches the required length of the upper chord reinforcement 201, the upper chord reinforcement 201 is connected to the web connection assembly by passing the upper chord reinforcement 201 through the second circular fixing hole opened on the surface of the first upper chord reinforcement fixing block 220 and the third circular fixing hole opened on the surface of the second upper chord reinforcement fixing block 223. At this time, the L-shaped connecting reinforcement 202 is overlapped with the second circular connecting holes 209 opened on the two end surfaces of the upper chord reinforcement 201 and the first circular connecting hole 105 opened on the upper end surface of the support vertical reinforcement 104. The upper chord reinforcement 201 is connected to the support vertical reinforcement 104, and the transverse reinforcement support assembly 207 is placed on the inner side of the U-shaped connecting reinforcement 218 according to the installation position of the transverse reinforcement 3, and the outer side of the transverse reinforcement support assembly 207 is in contact with the surface of the web connecting reinforcement. The lower chord reinforcement 205 is then passed through the fifth circular fixing hole formed by the third semi-arc support block 228 and the fourth semi-arc support block 230, and overlaps with the second circular connecting reinforcement 210 connected to the two ends of the horizontal connecting reinforcement 204.

[0045] When the lower chord reinforcement 205 passes through the fifth circular fixing hole and is connected to the second circular connecting reinforcement 210, one end surface of the lower chord reinforcement 205 is located at the angle of the web connecting reinforcement and fits the surface of the web connecting reinforcement. Then, the transverse reinforcement 3 passes through the fourth circular fixing hole 232 to connect the plurality of reinforcement truss assemblies 2 together. At this time, the transverse reinforcement 3, the web connecting assembly 217, the upper chord reinforcement 201, and the lower chord reinforcement 205 form a stable triangular structure and form a complete floor deck 101.

[0046] Then install the spliced ​​floor decking 101 at the required installation position, and then overlap the second L-shaped connecting plate 103 of another floor decking 101 with the first L-shaped connecting plate 102 of the floor decking 101, so that the two floor decking 101 are connected together, and so on, until the installation of the floor decking 101 is completed, and all operations are completed.

[0047] 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 preferred examples of the present invention and are not intended to limit 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 fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A weld-free and dismantling-free steel truss floor deck, comprising a floor deck assembly (1), characterized in that: The upper end surface of the floor deck assembly (1) is connected to a plurality of steel bar truss assemblies (2), and the plurality of steel bar truss assemblies (2) are connected via transverse steel bars (3); The floor deck assembly (1) comprises a floor deck (101), one end of the floor deck (101) is connected to a first L-shaped connecting plate (102), and one end of the floor deck (101) away from the first L-shaped connecting plate (102) is connected to a second L-shaped connecting plate (103), and the upper end surfaces of the floor deck (101) are connected to a plurality of support vertical steel bars (104), and the upper end surface of each support vertical steel bar (104) is provided with a first circular connecting hole (105); The steel bar truss assembly (2) comprises an upper chord steel bar (201), both ends of the upper chord steel bar (201) are connected to L-shaped connecting steel bars (202), a vertical steel bar support assembly (203) is connected below each of the L-shaped connecting steel bars (202), an inner cavity of each of the vertical steel bar support assemblies (203) is connected to a horizontal connecting steel bar (204), both ends of the horizontal connecting steel bar (204) are connected to a lower chord steel bar (205), one end of the lower chord steel bar (205) facing the middle portion of the horizontal connecting steel bar (204) is connected to a web bar steel bar assembly (206), and the outer surface of each of the lower chord steel bars (205) is connected to a plurality of transverse steel bar support assemblies (207); Both ends of each horizontal connecting steel bar (204) are connected to a second circular connecting steel bar (210), and both ends of each lower chord steel bar (205) are provided with a third circular connecting hole (211), and the second circular connecting steel bar (210) fits in with the third circular connecting hole (211); The web member reinforcement assembly (206) includes a plurality of web member connection assemblies (217), both sides of the lower end of the web member connection assembly (217) are connected to U-shaped connection reinforcement bars (218), one end of the U-shaped connection reinforcement bar (218) away from the web member connection assembly (217) is connected to a first web member connection reinforcement bar (219), and one end of the first web member connection reinforcement bar (219) away from the U-shaped connection reinforcement bar (218) is connected to a first upper chord reinforcement fixing block (220); The lower surfaces of both ends of the first upper chord steel bar fixing block (220) are connected to third circular connecting steel bars (221), both ends of the first web member connecting steel bar (219) are provided with fourth circular connecting holes (222), and both end surfaces of the U-shaped connecting steel bar (218) are connected to fourth circular connecting steel bars (233); The web member connection assembly (217) includes a second upper chord steel bar fixing block (223), one end of the second upper chord steel bar fixing block (223) is connected to both sides of a fifth circular connecting steel bar (224), and one end of the fifth circular connecting steel bar (224) away from the second upper chord steel bar fixing block (223) is connected to a second web member connecting steel bar (225); Sixth circular connecting steel bars (226) are connected to both sides of the surface of one end of the second upper chord steel bar fixing block (223) away from the fifth circular connecting steel bar (224), and the end of the sixth circular connecting steel bar (226) away from the second upper chord steel bar fixing block (223) is connected to the third web member connecting steel bar (227); The transverse steel bar support assembly (207) includes a third semi-arc support block (228), one end of the third semi-arc support block (228) is connected to a second rotating rod (229), the upper end surface of the second rotating rod (229) is connected to a fourth semi-arc support block (230), the upper end surface of the fourth semi-arc support block (230) is connected to a connecting block (231), and a fourth circular fixing hole (232) is provided on the surface of the connecting block (231); The fourth circular fixing hole (232) is matched with the transverse reinforcement (3), and the plurality of reinforcement truss assemblies (2) are fixed together by the fourth circular fixing hole (232) and the transverse reinforcement (3). The third semi-arc support block (228) and the fourth semi-arc support block (230) form a fifth circular fixing hole, and the fifth circular hole is matched with the lower chord reinforcement (205); When the lower chord reinforcement (205) passes through the fifth circular fixing hole and is connected to the second circular connecting reinforcement (210), one end surface of the lower chord reinforcement (205) is located at the angle of the web connecting reinforcement and fits the surface of the web connecting reinforcement. The transverse reinforcement (3) passes through the fourth circular fixing hole (232) to connect the plurality of reinforcement truss assemblies (2). The transverse reinforcement (3), the web connecting assembly (217), the upper chord reinforcement (201) and the lower chord reinforcement (205) form a stable triangular structure.

2. The weld-free, non-disassembly-required steel bar truss floor deck according to claim 1, characterized in that: Both ends of the L-shaped connecting steel bar (202) are connected to a first circular connecting steel bar (208), both ends of the upper chord steel bar (201) are provided with a second circular connecting hole (209), both ends of each horizontal connecting steel bar (204) are connected to a second circular connecting steel bar (210), and both ends of each lower chord steel bar (205) are provided with a third circular connecting hole (211).

3. The weld-free, dismantling-free steel truss floor deck according to claim 2, characterized in that: The vertical steel bar support assembly (203) includes a first circular connecting block (212), an outer surface of the first circular connecting block (212) is provided with a first circular hole (213), one end of the first circular connecting block (212) is connected to a first semi-arc supporting block (214), an end of the first semi-arc supporting block (214) away from the first circular connecting block (212) is connected to a first rotating rod (215), and an upper end surface of the first rotating rod (215) is connected to a second semi-arc supporting block (216).

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