Combined steel bar truss floor support plate

Abstract

The invention relates to a combined steel bar truss floor support plate which comprises a steel bar truss and a floor support plate, the steel bar truss comprises an upper chord rib, a lower chord rib and a web member rib, a limiting assembly is arranged on the floor support plate, the limiting assembly comprises a plurality of limiting blocks, a driving rod and a pushing block, the limiting blocks are arranged on the floor support plate, and the lower chord rib is located below the limiting blocks. A connecting block is connected to the limiting block and penetrates through the floor bearing plate, the driving rod is rotationally connected to the bottom wall of the floor bearing plate, a threaded part is arranged at the position, corresponding to the connecting block, of the driving rod, a limiting rail is connected to the position, corresponding to the threaded part, of the floor bearing plate, and the pushing block is slidably matched with the limiting rail and is in threaded fit with the threaded part. The thickness of the push block is gradually increased from the end of the push block to the limiting block as a reference direction, a receding groove is formed in the connecting block, and the pressure applying slope abuts against the side edge of the receding groove. The construction method has the effect of improving the construction efficiency of the steel bar truss floor support plate.

Description

Technical Field

[0001] The present application relates to the technical field of floor decking, and in particular to a combined steel bar truss floor decking. Background Art

[0002] A truss made of steel bars as the upper chord, lower chord and web members connected by resistance spot welding is called a steel truss. A composite load-bearing plate made by connecting the steel truss and the metal base plate by resistance spot welding is called a steel truss floor deck. Another derivative solution is to replace the metal base plate with a fiber cement flat plate, prefabricate the connectors on the fiber cement, and connect it to the steel truss through the connectors.

[0003] A Chinese patent with announcement number CN117966953A discloses a prefabricated assembled steel truss floor deck and its construction process, which includes a floor deck, a steel truss is equidistantly installed on the top of the floor deck, a positioning and installation mechanism is equidistantly provided between the steel truss and the floor deck, the steel truss includes two lower chord steel bars, an upper chord steel bar is provided above the two lower chord steel bars, web bars are installed between the upper chord steel bars and the two lower chord steel bars, the web bars are arranged in a wave shape, and a plurality of triangular areas are equidistantly formed between the web bars and the lower chord steel bars. In the present invention, a first screw is rotated to push the movable plate to move in the movable groove, and two slide seats are pulled by the first connecting rod to move relatively to the top of the two lower chord steel bars, so that the steel trusses with different distances between the two lower chord steel bars can be fixed, and the steel trusses of different sizes can be connected to the floor deck.

[0004] With respect to the above-mentioned related technologies, in the prior art, a first screw is used to drive the top cylinder to move to limit the horizontal direction of the steel truss, and then a second screw is used to drive the pressure plate to limit the vertical direction of the steel truss to achieve the installation of the steel truss. However, the prior art has three positioning and installation mechanisms on the floor deck for each steel truss, and each positioning and installation mechanism needs to be operated separately, resulting in more installation steps for a steel truss floor deck, which will take more time during construction, increase the labor intensity of construction workers, and reduce the construction efficiency of the steel truss floor deck.

[0005] Application Contents In order to improve the construction efficiency of steel bar truss floor decking, the present application provides a combined steel bar truss floor decking.

[0006] This application provides a combined steel truss floor deck using the following technical solutions: A combined steel bar truss floor deck, comprising a steel bar truss and a floor deck, the steel bar truss comprising an upper chord, a lower chord and a web bar, the floor deck is provided with a limiting assembly, the limiting assembly comprising a limiting block, a driving rod and a pushing block, the limiting block is provided with a plurality of blocks on the floor deck, the limiting block presses the lower chord, the limiting block is connected with a connecting block, the connecting block passes through the floor deck, the driving rod is rotatably connected to the bottom wall of the floor deck, the driving rod is provided with a threaded portion at a position corresponding to the connecting block, the floor deck is connected with a limiting rail at a position corresponding to the threaded portion, the pushing block is slidably fitted on the limiting rail and threadably fitted with the threaded portion, the pushing block is provided with a pressure inclined surface, the reference direction is from the end of the pushing block to the limiting block, the thickness of the pushing block gradually increases, an avoidance groove is opened on the connecting block, and the pressure inclined surface abuts against the side of the avoidance groove.

[0007] By adopting the above technical solution, during installation, the steel truss is placed on the floor deck, and then the limiting block is placed on the lower chord, so that the connecting block passes through the floor deck, and then the driving rod is rotated to move the push block, and the side of the avoidance groove is pressed by the pressure slope to make the limiting block show a downward trend to press the lower chord, thereby limiting the freedom of the steel truss and realizing the installation of the steel truss. The installation angle of the steel truss is limited by the cooperation between the connecting block and the floor deck, and finally all the push blocks are driven to move at the same time by the driving rod, so that the driving rod drives all the pressure blocks to synchronously lock the steel truss. Compared with the existing technology, the installation steps of the steel truss are reduced, the labor intensity of the construction personnel is reduced, and the construction efficiency of the steel truss floor deck is improved.

[0008] Optionally, a guiding slope is provided on the bottom wall of the avoidance groove, and the guiding slope fits the pressure slope.

[0009] By adopting the above technical solution, the contact area between the push block and the connecting block is increased by cooperating the guiding inclined surface with the pressure inclined surface, making it easier for the push block to push the connecting block, and improving the installation stability of the steel truss, thereby providing convenience for the installation of the steel truss.

[0010] Optionally, a receiving groove is provided at the position of the limiting block corresponding to the lower chord rib, a pressure block is provided in the receiving groove, a sliding column is connected to the pressure block, a sliding hole is opened on the side wall of the receiving groove, an ejection spring is provided in the sliding hole, the pressure block is slidably fitted in the sliding hole through the sliding column, and the ejection spring is sleeved on the sliding column.

[0011] By adopting the above technical solution, the commonly used steel trusses are arranged in a triangular shape, and there is no direct connection between the two lower chords, which leads to deformation of the steel trusses. Through the cooperation of the pressure block and the ejection spring, the lower chord is pushed during the downward pressure process, so that the stress between the two lower chords is released, and the deformation of the steel truss is corrected. Finally, the ejection spring is used to buffer the pressure of the limiting block as much as possible, so that the steel truss can be better installed on the floor deck.

[0012] Optionally, a positioning rod is detachably connected to the floor deck, a positioning block is connected to the positioning rod, the positioning block fits the end of the lower chord, and the end of the positioning rod is provided with a connecting component for connecting to other floor decks.

[0013] By adopting the above technical solution, the above-mentioned limiting block is used to compress the lower chord, but there is no limit in the length direction of the steel truss, which makes the relative position between each steel truss uneven, which will reduce the overall mechanical properties and load performance of the entire steel truss floor deck after pouring. By setting the positioning rod and the positioning block to limit the position of the steel truss in the length direction, it is ensured that the position between two adjacent steel trusses is kept as consistent as possible, ensuring the overall mechanical properties and load performance of the steel truss floor deck.

[0014] Optionally, an installation component is provided on the floor deck, and the installation component includes a mounting column and a pressure cover. The mounting column is detachably connected to the floor deck, and a mounting groove is opened on the mounting column. The positioning rod is placed in the mounting groove. The pressure cover is threadedly engaged with the mounting column and pressed against the positioning rod. A positioning piece for limiting the position of the positioning rod is provided on the mounting column.

[0015] By adopting the above technical solution, when installing the positioning rod, the positioning rod is inserted into the installation groove, and the positioning piece is used to limit the position of the positioning rod in the length direction, and finally the pressure cover is rotated until the pressure cover presses the positioning rod, thereby limiting the freedom of the positioning rod and realizing the installation of the positioning rod.

[0016] Optionally, the positioning member is a positioning column, the positioning member is connected in the installation groove, the positioning member is arranged in a truncated cone shape, the smaller end of the positioning member is close to the pressure cover, a positioning hole is opened on the positioning rod, and the positioning member is plugged into the positioning hole.

[0017] By adopting the above technical solution, the truncated cone-shaped positioning piece makes it easier to insert the positioning piece into the positioning hole. The cooperation between the positioning piece and the positioning hole limits the position of the positioning rod in the length direction, which is beneficial to the installation between two adjacent floor decking plates.

[0018] Optionally, the connecting assembly includes a connecting tube, a connecting rod and a driving ring, both ends of the connecting tube are open, the connecting tube is sleeved on the end of the positioning rod, the connecting rod is connected to the end of the positioning rod, the connecting sleeve is provided with a limiting groove, the connecting rod is slidably fitted in the limiting groove, the connecting tube is connected to a fixing column, the fixing column is connected to a plurality of limiting strips, the driving ring is slidably fitted on the fixing column and slidably fitted with the limiting strips, a contact flange is connected to the driving ring at a position corresponding to the connecting rod, a contact arc surface is provided on the contact flange, the reference direction is from the inner wall of the driving ring to the end of the contact flange, the distance from the contact arc surface to the axis of the driving ring gradually decreases, the driving rod contacts the contact arc surface, and the connecting tube is provided with a mounting piece for limiting the driving ring.

[0019] By adopting the above technical solution, when connecting two adjacent floor decking plates, the ends of the two positioning rods are inserted into the connecting tube, and the connecting rod enters the limiting groove. Then the driving ring is set on the fixed column so that the contact arc surface contacts the connecting rod, and the installation part is used to limit the driving ring from escaping from the fixed column. Then the driving ring is rotated, and the two connecting rods are driven to move toward the center position of the driving ring at the same time through the contact arc surface. The positioning rod is restricted by the installation component and drives the floor decking plate to move until the two floor decking plates fit together. Finally, the driving ring is pressed down so that the driving ring and the limiting strip slide together to limit the movement of the positioning rod, thereby realizing the installation between the two floor decking plates. This process converts the rotational force of the driving ring into the movement force of the floor decking plate, achieving the effect of labor-saving construction.

[0020] Optionally, the mounting member is a mounting nut, the mounting nut is threadedly engaged with the top end of the fixing column, a pressure spring is sleeved on the fixing column, and the pressure spring is located between the driving ring and the mounting member.

[0021] By adopting the above technical solution, the driving ring is pressed by the cooperation of the mounting member and the pressure spring, thereby reducing the possibility of the driving ring falling off the fixing column, so that the driving ring remains in a state of locking the connecting rod.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. During installation, place the steel truss on the floor deck, then place the limiting block on the lower chord, make the connection block pass through the floor deck, then turn the drive rod to move the push block, and use the pressure slope to press the side of the avoidance groove to make the limiting block show a downward trend to press the lower chord, thereby limiting the freedom of the steel truss and realizing the installation of the steel truss. The installation angle of the steel truss is limited by the cooperation between the connection block and the floor deck, and finally the drive rod drives all the push blocks to move at the same time, so that the drive rod drives all the pressure blocks to synchronously lock the steel truss. Compared with the existing technology, the installation steps of the steel truss are reduced, the labor intensity of the construction personnel is reduced, and the construction efficiency of the steel truss floor deck is improved; 2. When connecting two adjacent floor decking plates, insert the ends of the two positioning rods into the connecting tube, and the connecting rod enters the limiting groove. Then, put the driving ring on the fixed column so that the contact arc surface contacts the connecting rod, and use the mounting parts to limit the driving ring from escaping the fixed column. Then, rotate the driving ring, and drive the two connecting rods to move toward the center of the driving ring at the same time through the contact arc surface. The positioning rod is restricted by the installation assembly, driving the floor decking plate to move until the two floor decking plates fit together. Finally, press down the driving ring so that the driving ring and the limiting strip slide together to limit the movement of the positioning rod, thus realizing the installation between the two floor decking plates. This process converts the rotational force of the driving ring into the moving force of the floor decking plate, achieving the effect of labor-saving construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the combined steel bar truss floor deck in the embodiment of the present application.

[0024] Figure 2 It is a schematic diagram of the structure of the steel truss and the restraining assembly in the embodiment of the present application.

[0025] Figure 3 It is a schematic diagram of the structure of the limiting component in the embodiment of the present application.

[0026] Figure 4 It is an exploded view used to reflect the structure of the restricted component in the embodiment of the present application.

[0027] Figure 5 It is a cross-sectional view used to reflect the structure of the limiting component in the embodiment of the present application.

[0028] Figure 6 It is an exploded view used to illustrate the structure of the installation component in the embodiment of the present application.

[0029] Figure 7 It is a structural schematic diagram of the connection component in an embodiment of the present application.

[0030] Figure 8 It is an exploded diagram used to illustrate the structure of the connection components in the embodiment of the present application.

[0031] Explanation of the reference numerals: 1. steel truss; 11. upper chord; 12. lower chord; 13. web member; 2. floor deck; 21. limiting rail; 3. limiting assembly; 31. limiting block; 311. accommodating groove; 312. pressure block; 313. sliding column; 314. ejection spring; 315. connecting block; 3151. guiding slope; 32. driving rod; 321. threaded portion; 33. pushing block; 331. pressure slope; 4. positioning rod; 41. positioning block; 5. mounting assembly; 51. mounting column; 511. mounting groove; 512. positioning member; 52. pressure cover; 6. connecting assembly; 61. connecting tube; 611. limiting groove; 612. fixing column; 613. limiting strip; 62. connecting rod; 63. driving ring; 631. abutting flange; 6311. abutting arc surface; 7. mounting member; 71. pressure spring. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-Figure 8 This application is described in further detail.

[0033] The present application embodiment discloses a combined steel bar truss floor deck. Figure 1 and Figure 2 The combined steel truss floor deck comprises a steel truss 1 and a floor deck 2. The steel truss 1 comprises an upper chord 11, a lower chord 12 and a web 13. Two lower chords 12 are provided. The upper chord 11 and the lower chord 12 are arranged in a triangular shape. The web 13 is welded between the upper chord 11 and the lower chord 12. The steel truss 1 is placed on the floor deck 2, and the lower chord 12 abuts against the floor deck 2.

[0034] Reference Figure 3 , Figure 4 and Figure 5 , a limiting assembly 3 is provided on the floor deck 2, and the limiting assembly 3 includes a limiting block 31, a driving rod 32 and a pushing block 33. A receiving groove 311 is provided at the position of the limiting block 31 corresponding to the two lower chord bars 12, and a pressure block 312 is provided in the receiving groove 311. The pressure block 312 is a triangular block, and a sliding column 313 is fixedly connected to the pressure block 312. A sliding hole is provided on the side wall of the receiving groove 311, and a retaining ring is fixedly connected to the opening of the sliding block. A connecting ring is fixedly connected to the sliding column 313, and the connecting ring is located in the sliding hole. An ejection spring 314 is sleeved on the sliding column 313, and the ejection spring 314 is located between the connecting ring and the inner end wall of the sliding hole, and the pressure block 312 contacts the lower chord bar 12.

[0035] Reference Figure 3 , Figure 4 and Figure 5, a connection block 315 is fixedly connected to the bottom wall of the limiting block 31, the connection block 315 passes through the floor deck 2, an avoidance groove is opened on the connection block 315, an avoidance notch is opened on the bottom wall of the avoidance groove, and a guiding inclined surface 3151 is arranged on the bottom wall of the avoidance groove. The driving rod 32 is rotatably connected to the bottom wall of the floor deck 2, a threaded portion 321 is arranged at the position of the driving rod 32 corresponding to the connection block 315, and a limiting rail 21 is fixedly connected to the position of the floor deck 2 corresponding to the threaded portion 321. The push block 33 is slidably fitted on the limiting rail 21 and is threadedly fitted with the threaded portion 321. A pressure inclined surface 331 is arranged on the push block 33, and the thickness of the push block 33 gradually increases from the bottom wall of the push block 33 to the floor deck 2 as the reference direction, and the pressure inclined surface 331 fits the guiding inclined surface 3151.

[0036] When installing the steel truss 1, the steel truss 1 is placed on the floor decking 2, the limiting block 31 is placed on the floor decking 2, the pressure block 312 is in contact with the lower chord 12, the connecting port passes through the floor decking 2, the driving rod 32 enters the avoidance groove, and the driving rod 32 is rotated to move the push block 33 until the pressure slope 331 fits the guide slope 3151, so that the limiting block 31 descends until the pressure block 312 is pressed against the lower chord 12, thereby limiting the freedom of the steel truss 1 and realizing the installation of the steel truss 1.

[0037] Reference Figure 1 and Figure 6 , positioning rods 4 are provided on the floor decking 2 at positions corresponding to the two ends of the steel truss 1, and positioning blocks 41 are fixedly connected to the positioning rods 4, and the positioning blocks 41 fit the ends of the lower chord 12. A number of installation components 5 are provided on the floor decking 2, and the installation components 5 include installation columns 51 and pressure caps 52. A connecting screw is fixedly connected to the bottom end of the installation column 51, and the installation column 51 is threadedly engaged on the floor decking 2 through the connecting screw. A mounting groove 511 is provided at the top of the installation column 51, and a positioning member 512 is provided in the installation groove 511. The positioning member 512 is a positioning column, and the positioning member 512 is vertically fixedly connected to the bottom wall of the installation groove 511. The positioning member 512 is arranged in a truncated cone shape, and the larger end of the positioning member 512 is connected to the installation column 51.

[0038] Reference Figure 6 A positioning hole is formed on the positioning rod 4 at a position corresponding to the positioning member 512, and the positioning rod 4 is plugged into the positioning member 512 through the positioning hole, and the positioning rod 4 is located in the mounting groove 511. The pressure cover 52 is threadedly engaged with the top of the mounting column 51, and an arc angle is provided on the inner top wall of the pressure cover 52, and the pressure cover 52 presses the positioning rod 4 tightly.

[0039] When installing the positioning rod 4, place the positioning rod 4 into the installation groove 511, insert the positioning piece 512 into the positioning hole, and then rotate the pressure cover 52 to make the pressure cover 52 drop and apply pressure to the positioning rod 4 until the pressure cover 52 presses the positioning rod 4. At the same time, the arc angle of the top end of the installation column 51 contacts the inner top wall of the pressure cover 52 and tends to deform. The side wall of the installation groove 511 squeezes the positioning rod 4, thereby realizing the installation of the positioning rod 4.

[0040] Reference Figure 1 , Figure 7 and Figure 8 The end of the positioning rod 4 is provided with a connecting assembly 6, which includes a connecting tube 61, a connecting rod 62 and a driving ring 63. The connecting rod 62 is fixedly connected to the end of the positioning rod 4. The two ends of the connecting tube 61 are open, and a limiting groove 611 is opened on the connecting tube 61. The end of the positioning rod 4 is inserted into the connecting tube 61, and the connecting rod 62 is slidably fitted in the limiting groove 611. A fixing column 612 is fixedly connected to the connecting tube 61, and a plurality of limiting strips 613 are fixedly connected to the fixing column 612, and the plurality of limiting strips 613 are evenly distributed around the axis of the fixing column 612.

[0041] Reference Figure 7 and Figure 8 The driving ring 63 is sleeved on the fixing column 612, and a connecting groove is provided at the position of the driving ring 63 corresponding to the limiting strip 613. Two abutting flanges 631 are fixedly connected to the driving ring 63, and the two abutting flanges 631 are arranged rotationally symmetrically with the axis of the driving ring 63. A abutting arc surface 6311 is arranged on the abutting flange 631, and the distance from the inner wall of the driving ring 63 to the end of the abutting flange 631 is a reference direction, and the distance between the abutting arc surface 6311 and the center of the driving ring 63 gradually decreases, and the connecting rod 62 is in contact with the abutting arc surface 6311.

[0042] Reference Figure 8 The fixing column 612 is provided with a mounting member 7, the mounting member 7 is a mounting nut, and the mounting member 7 is threadedly engaged with the top of the fixing column 612. The fixing column 612 is sleeved with a pressure spring 71, and the pressure spring 71 is located between the mounting member 7 and the driving ring 63.

[0043] When connecting two floor decking plates 2, the two positioning rods 4 are inserted into the connecting sleeve, and the connecting rod 62 enters the limiting groove 611. Then, the driving ring 63 is mounted on the fixing column 612 so that the connecting rod 62 touches the arc surface 6311. Then, the compression spring 71 and the threaded fitting 7 are mounted on the fixing column 612. Then, the driving ring 63 is rotated so that the two connecting rods 62 move toward the center position of the driving ring 63 at the same time, driving the positioning rods 4 to move until the two positioning rods 4 collide with each other (the connecting assembly 6 on the other end of the positioning rod 4 must also be operated synchronously). At this time, the two floor decking plates 2 also collide with each other, achieving the effect of assembling two adjacent floor decking plates 2.

[0044] The implementation principle of a combined steel truss floor decking plate in the embodiment of the present application is as follows: during construction, the installation column 51 is first threadedly engaged with the floor decking plate 2, the positioning rod 4 is placed in the installation groove 511, and the pressure cover 52 is rotated to limit the positioning rod 4, and then the steel truss 1 is placed on the floor decking plate 2, so that the end of the lower chord 12 is in contact with the positioning block 41, and then the pressure block is placed on the lower chord 12, so that the connecting block 315 passes through the floor decking plate 2, and the driving rod 32 is rotated to move the push block 33 until the pressure inclined surface 331 is pressed against the guide inclined surface 3151, so that the limiting block 31 is lowered, and the pressure block 312 is pressed. Tighten the lower chord 12 to install the steel truss 1, then insert the two positioning rods 4 into the connecting tube 61, and put the driving ring 63 on the fixing column 612, so that the connecting rod 62 touches the arc surface 6311, puts the compression spring 71, and rotates the mounting part 7, and finally rotates and presses down the driving ring 63, so that the driving ring 63 slides and fits on the limiting strip 613, and at the same time, the two connecting rods 62 move toward the center of the driving ring 63 at the same time until the two floor decking plates 2 are fitted, and the connecting assembly 6 at the other end is also carried out synchronously, thereby realizing the construction and installation of the steel truss 1 and the floor decking plate 2.

[0045] The installation angle of the steel truss 1 is limited by the cooperation between the connecting block 315 and the floor deck 2. Finally, all the push blocks 33 are driven to move at the same time by the driving rod 32, so that the driving rod 32 drives all the pressure blocks to synchronously lock the steel truss 1. Compared with the prior art, the installation steps of the steel truss 1 are reduced, the labor intensity of the construction workers is reduced, and the construction efficiency of the steel truss 1 and the floor deck 2 is improved.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A combined steel truss floor deck, comprising a steel truss (1) and a floor deck (2), wherein the steel truss (1) comprises an upper chord (11), a lower chord (12) and a web member (13), characterized in that: The floor deck (2) is provided with a limiting assembly (3), the limiting assembly (3) comprising a limiting block (31), a driving rod (32) and a pushing block (33), a plurality of limiting blocks (31) are provided on the floor deck (2), the lower chord (12) is located below the limiting block (31), the limiting block (31) is connected with a connecting block (315), the connecting block (315) passes through the floor deck (2), the driving rod (32) is rotatably connected to the bottom wall of the floor deck (2), the driving rod (32) corresponds to the connecting block (315) A threaded portion (321) is provided at a position, a limiting rail (21) is connected to the floor decking plate (2) at a position corresponding to the threaded portion (321), the push block (33) is slidably engaged on the limiting rail (21), and is threadedly engaged with the threaded portion (321), a pressure inclined surface (331) is provided on the push block (33), and the thickness of the push block (33) gradually increases from the end of the push block (33) to the limiting block (31) as a reference direction, an avoidance groove is provided on the connecting block (315), and the pressure inclined surface (331) abuts against the side of the avoidance groove.

2. The combined steel bar truss floor deck according to claim 1 is characterized in that: A guiding inclined surface (3151) is provided on the bottom wall of the avoidance groove, and the guiding inclined surface (3151) is in contact with the pressure-applying inclined surface (331).

3. The combined steel bar truss floor deck according to claim 1 is characterized in that: The limiting block (31) is provided with a receiving groove (311) at a position corresponding to the lower chord rib (12), a pressure block (312) is provided in the receiving groove (311), a sliding column (313) is connected to the pressure block (312), a sliding hole is opened on the side wall of the receiving groove (311), an ejection spring (314) is provided in the sliding hole, the pressure block (312) is slidably fitted in the sliding hole through the sliding column (313), and the ejection spring (314) is sleeved on the sliding column (313).

4. The combined steel bar truss floor deck according to claim 1 is characterized in that: The floor deck (2) is detachably connected to a positioning rod (4), the positioning rod (4) is connected to a positioning block (41), the positioning block (41) fits the end of the lower chord (12), and the end of the positioning rod (4) is provided with a connecting component (6) for connecting to other floor decks (2).

5. The combined steel bar truss floor deck according to claim 4 is characterized in that: The floor deck (2) is provided with a mounting assembly (5), the mounting assembly (5) comprising a mounting column (51) and a pressure cover (52), the mounting column (51) is detachably connected to the floor deck (2), the mounting column (51) is provided with a mounting groove (511), the positioning rod (4) is placed in the mounting groove (511), the pressure cover (52) is threadedly engaged with the mounting column (51) and pressed against the positioning rod (4), and the mounting column (51) is provided with a positioning piece (512) for limiting the position of the positioning rod (4).

6. The combined steel bar truss floor deck according to claim 5, characterized in that: The positioning member (512) is a positioning column, the positioning member (512) is connected in the installation groove (511), the positioning member (512) is arranged in a truncated cone shape, the smaller end of the positioning member (512) is close to the pressure cover (52), the positioning rod (4) is provided with a positioning hole, and the positioning member (512) is plugged into the positioning hole.

7. The combined steel bar truss floor deck according to claim 4 is characterized in that: The connecting assembly (6) comprises a connecting tube (61), a connecting rod (62) and a driving ring (63). Both ends of the connecting tube (61) are open. The connecting tube (61) is sleeved on the end of the positioning rod (4). The connecting rod (62) is connected to the end of the positioning rod (4). A limiting groove (611) is provided on the connecting tube (61). The connecting rod (62) is slidably fitted in the limiting groove (611). The connecting tube (61) is connected to a fixing column (612). A plurality of limiting strips (613) are connected to the fixing column (612). The driving ring (63) is slidably fitted on the fixing column (612). A contact flange (631) is connected to the driving ring (63) at a position corresponding to the connecting rod (62), and a contact arc surface (6311) is provided on the contact flange (631). From the inner wall of the driving ring (63) to the end of the contact flange (631) is a reference direction, and the distance between the contact arc surface (6311) and the axis of the driving ring (63) gradually decreases. The connecting rod (62) contacts the contact arc surface (6311). A mounting member (7) for limiting the driving ring (63) is provided on the connecting tube (61). When the floor deck (2) is connected, the driving ring (63) and the limiting strip (613) are slidably matched.

8. The combined steel bar truss floor deck according to claim 7 is characterized in that: The mounting member (7) is a mounting nut, and the mounting member (7) is threadedly engaged with the top end of the fixing column (612). A pressure spring (71) is sleeved on the fixing column (612), and the pressure spring (71) is located between the driving ring (63) and the mounting member (7).

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