An assembled formwork-free steel truss floor deck

Abstract

The present invention relates to the technical field of floor decking, and specifically discloses an assembled formwork-free steel truss floor decking, comprising a bottom plate, an upper chord steel bar and a lower chord steel bar, wherein the upper chord steel bar is equidistantly arranged above the bottom plate, and the lower chord steel bar is symmetrically arranged below the upper chord steel bar, and a support module is arranged in an array on the top of the bottom plate, wherein the support module comprises an inverted V frame, which is arranged on the top of the bottom plate, and a stabilizing module is symmetrically and equidistantly arranged on the top of the bottom plate, and the stabilizing module comprises a column and a cross plate, wherein the columns are symmetrically arranged on both sides of the upper chord steel bar, and the cross plate is symmetrically connected to the bottom of both sides of the columns front and back. For the floor decking, welding is not required, and various structures can be assembled by positioning bolts, thereby improving the convenience of assembly, and the stability of the connection between the left and right groups of bottom plates is strengthened by a pulling module, and the strength of the connection between the left and right groups of bottom plates is monitored by a monitoring module, thereby preventing the insufficient connection strength between the left and right groups of bottom plates from affecting the building quality.

Description

Technical Field

[0001] The invention belongs to the technical field of floor decking, and in particular relates to an assembled formwork-free steel truss floor decking. Background Art

[0002] The steel truss floor deck is a new type of prefabricated floor slab, which is a kind of unsupported corrugated composite floor deck. The steel truss floor deck has the advantages of easy installation, less steel bar binding, reasonable structure, short construction period, safety and reliability. The existing steel truss floor deck needs to be additionally equipped with welding equipment, and the various structures on the floor deck are welded and fixed by welding equipment, which makes the assembly operation of the floor deck inconvenient and cannot ensure the connection effect of the left and right groups of floor decks. Summary of the invention

[0003] The object of the present invention is to provide an assembled formwork-free steel truss floor deck to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The invention discloses an assembled formwork-free steel truss floor deck, comprising a bottom plate, an upper chord steel bar and a lower chord steel bar, wherein the upper chord steel bar is equidistantly arranged above the bottom plate, and the lower chord steel bar is symmetrically arranged below the upper chord steel bar, a support module is arranged in an array on the top of the bottom plate, the support module comprises an inverted V frame, the inverted V frame is arranged on the top of the bottom plate, and stabilization modules are symmetrically and equidistantly arranged on the top of the bottom plate, the stabilization module comprises columns and cross plates, the columns are symmetrically arranged on both sides of the upper chord steel bar, the cross plates are symmetrically connected to the bottom of both sides of the columns front and back, and the cross plates are fixedly connected to the bottom plate by positioning bolts, a pulling module is equidistantly connected above the two groups of bottom plates, and the pulling module is connected between the left and right groups of stabilization modules, the pulling module comprises a round rod, a hook, and a pull rope, the round rod is respectively arranged on the front side of the column on the left and the rear side of the column on the right, the hook is hung on the outer wall of the round rod, the pull rope is connected to one side of the hook, a monitoring module is arranged above the pulling module located in the middle, the monitoring module comprises a pressure sensor, and the pressure sensor is located in the middle above the pulling module.

[0006] Preferably, the support module also includes a primary circular hole, a secondary circular hole and a positioning plate. The primary circular hole is opened at the upper part of the inverted V frame and penetrates the inverted V frame from left to right. The upper chord steel bar penetrates the primary circular hole. The secondary circular hole is opened symmetrically at the lower part of the inverted V frame front to back and penetrates the inverted V frame from left to right. The lower chord steel bar penetrates the secondary circular hole. The positioning plate is connected to the bottom of the inverted V frame, and the positioning plate is fixedly connected to the bottom plate by positioning bolts to fix the upper chord steel bar and the lower chord steel bar.

[0007] Preferably, the inverted V frame is symmetrically connected to square plates at the front and rear, and a reinforcing frame plate is connected to the side of the square plate opposite to the inverted V frame. The bottom surface of the square plate and the bottom surface of the reinforcing frame plate are both in contact with the bottom plate, thereby enhancing the stability of the inverted V frame and the contact area between the inverted V frame and the bottom plate.

[0008] Preferably, the stabilizing module also includes a primary groove and a secondary groove, the primary groove is opened on the side of the column opposite to the upper-chord steel bar, and the end of the upper-chord steel bar is arranged in the primary groove, and the secondary groove is opened on the side of the cross plate opposite to the lower-chord steel bar, and the end of the lower-chord steel bar is arranged in the secondary groove, so that the end of the upper-chord steel bar is in the primary groove and the end of the lower-chord steel bar is in the secondary groove, and the positioning bolts are used to fix the cross plate and the bottom plate, thereby fixing the column.

[0009] Preferably, the lifting module also includes a primary assembly panel, a mounting plate and a limiting plate. The mounting plate is symmetrically connected to both sides of the round rod front and back. The primary assembly panel is arranged between the two groups of mounting plates, and the mounting plate is fixedly connected to the primary assembly panel by positioning bolts. The primary assembly panel is in an L-shaped structure, and the primary assembly panel is fixedly connected to the cross plate by positioning bolts. The limiting plate is symmetrically connected to both sides of the primary assembly panel front and back, and the limiting plate is in an L-shaped structure. The limiting plate is at the bottom of the mounting plate. The primary assembly panel is fixed to the cross plate by positioning bolts, and the mounting plate is connected and fixed to the primary assembly panel by positioning bolts. Under the restriction of the limiting plate, the stability of the mounting plate is guaranteed.

[0010] Preferably, the lifting module also includes a secondary assembly plate, a rotating sleeve, a threaded rod and a connecting plate. The threaded rod is connected to the end of the pull rope opposite to the hook. The rotating sleeve is sleeved on the outer wall of the threaded rod, and the outer wall of the threaded rod is threadedly connected to the rotating sleeve through an external thread. The secondary assembly plate bearing is connected to the end of the rotating sleeve opposite to the threaded rod, and the secondary assembly plate is respectively fitted with the cross plate and the bottom plate. The connecting plate is symmetrically connected to the bottom ends of both sides of the secondary assembly plate front and back, and the connecting plate is fixedly connected to the bottom plate through positioning bolts. The rotating sleeve is rotated to cause the threaded rod to shrink into the rotating sleeve, thereby pulling the pull rope, and finally tightening the primary assembly panel and the secondary assembly panel.

[0011] Preferably, the monitoring module also includes a clamping rod, a warning light, an arc plate and a ring. The clamping rod is symmetrically connected to both sides of the pressure sensor, the warning light is connected to the top of the clamping rod on the left side, the arc plate is connected to the end of the clamping rod opposite to the pressure sensor, and the inner wall of the arc plate is in contact with the column, the ring is connected to the top of the arc plate, and the ring is sleeved on the outer wall of the column. The ring is sleeved on the column, so that the monitoring module is set up, the left and right groups of base plates can pull each other, and when pulling, the force of the two groups of clamping rods against the pressure sensor will gradually increase. When the value monitored by the pressure sensor reaches a preset value, the pressure sensor transmits data to the external terminal, the external terminal receives the data and controls the warning light to turn on, reminding personnel that the connection strength of the left and right groups of base plates meets the standard, thereby ensuring the connection effect of the left and right groups of floor decking plates and preventing the connection strength between the left and right groups of base plates from being insufficient and affecting the building quality.

[0012] Preferably, a snap-fit ​​strip is connected to the middle left side of the bottom plate, and a snap-fit ​​slot is provided in the middle right side of the bottom plate, so that the snap-fit ​​strip at the left end of the bottom plate on the right side is snapped into the snap-fit ​​slot at the right end of the bottom plate on the left side, thereby completing the preliminary fixation between the left and right groups of bottom plates.

[0013] Compared with the prior art, the beneficial effects of the present invention are: when the present invention is in use, for the floor decking, there is no need for welding, and the various structures can be assembled through positioning bolts, thereby improving the convenience of assembly, and through the pulling module, the stability of the connection between the left and right groups of bottom plates is strengthened, and through the monitoring module, the strength of the connection between the left and right groups of bottom plates is monitored to prevent the insufficient connection strength between the left and right groups of bottom plates from affecting the building quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a schematic diagram of the overall structure of an assembled formwork-free reinforced truss floor deck.

[0015] Figure 2 The diagram is a schematic diagram of the bottom plate structure of an assembled formwork-free reinforced truss floor deck.

[0016] Figure 3 The present invention is a schematic diagram of the engagement notches of an assembled, formwork-free steel truss floor deck.

[0017] Figure 4 The present invention is a schematic diagram of the interlocking strips of an assembled steel truss floor decking plate that does not require formwork removal.

[0018] Figure 5 It is a schematic diagram of the lifting module of an assembled steel truss floor deck that does not require formwork removal.

[0019] Figure 6 The diagram is a monitoring module diagram of an assembled formwork-free steel truss floor deck.

[0020] In the figure: 1. bottom plate; 11. snap-fit ​​strip plate; 12. snap-fit ​​notch; 2. upper chord steel bar; 3. lower chord steel bar; 4. support module; 41. inverted V frame; 42. primary round hole; 43. secondary round hole; 44. positioning plate; 45. square plate; 46. strengthening frame plate; 5. stabilizing module; 51. column; 52. cross plate; 53. primary groove; 54. secondary groove; 6. lifting module; 61. round rod; 62. hook; 63. pull rope; 64. primary assembly plate; 65. installation plate; 66. limit plate; 67. secondary assembly plate; 68. rotating sleeve; 69. threaded rod; 610. connecting plate; 7. monitoring module; 71. pressure sensor; 72. pressing rod; 73. warning light; 74. arc plate; 75. collar. DETAILED DESCRIPTION

[0021] Example 1

[0022] See also Figure 1-Figure 6 As shown, an assembled formwork-free steel truss floor deck comprises a bottom plate 1, an upper chord steel bar 2 and a lower chord steel bar 3, wherein the upper chord steel bar 2 is equidistantly arranged above the bottom plate 1, and the lower chord steel bar 3 is symmetrically arranged below the upper chord steel bar 2, and a support module 4 is arranged in an array on the top of the bottom plate 1, and the support module 4 comprises an inverted V frame 41, and the inverted V frame 41 is arranged on the top of the bottom plate 1, and a stabilizing module 5 is symmetrically and equidistantly arranged on the top of the bottom plate 1, and the stabilizing module 5 comprises a column 51 and a cross plate 52, and the column 51 is symmetrically arranged on both sides of the upper chord steel bar 2, and the cross plate 52 is symmetrically connected to the bottom of both sides of the column 51, and the cross plate 5 The lifting module 6 is fixedly connected to the bottom plate 1 by positioning bolts, and a lifting module 6 is equidistantly connected above the two groups of bottom plates 1, and the lifting module 6 is connected between the left and right groups of stabilizing modules 5. The lifting module 6 includes a round rod 61, a hook 62, and a pull rope 63. The round rod 61 is respectively arranged at the front side of the column 51 on the left and the rear side of the column 51 on the right, the hook 62 is hung on the outer wall of the round rod 61, and the pull rope 63 is connected to one side of the hook 62. A monitoring module 7 is arranged above the lifting module 6 in the middle, and the monitoring module 7 includes a pressure sensor 71. The pressure sensor 71 is located in the middle above the lifting module 6.

[0023] refer to Figure 1-Figure 4 As shown, the support module 4 also includes a primary circular hole 42, a secondary circular hole 43 and a positioning plate 44. The primary circular hole 42 is opened at the upper part of the inverted V frame 41, and the primary circular hole 42 penetrates the inverted V frame 41 from left to right, the upper chord steel bar 2 penetrates the primary circular hole 42, and the secondary circular hole 43 is symmetrically opened at the lower part of the inverted V frame 41 from front to back, and the secondary circular hole 43 penetrates the inverted V frame 41 from left to right, the lower chord steel bar 3 penetrates the secondary circular hole 43, the positioning plate 44 is connected to the bottom of the inverted V frame 41, and the positioning plate 44 is fixedly connected to the bottom plate 1 by positioning bolts to fix the upper chord steel bar 2 and the lower chord steel bar 3.

[0024] refer to Figure 1-Figure 4 As shown, the inverted V frame 41 is symmetrically connected to the front and rear of the square plate 45, and the side of the square plate 45 opposite to the inverted V frame 41 is connected to the reinforcing frame plate 46, and the bottom surface of the square plate 45 and the bottom surface of the reinforcing frame plate 46 are both in contact with the bottom plate 1, thereby enhancing the stability of the inverted V frame 41 and the contact area between the inverted V frame 41 and the bottom plate 1.

[0025] refer to Figure 4-Figure 6 As shown, the stabilizing module 5 also includes a primary groove 53 and a secondary groove 54. The primary groove 53 is opened on the side of the column 51 opposite to the upper-chord steel bar 2, and the end of the upper-chord steel bar 2 is arranged in the primary groove 53. The secondary groove 54 is opened on the side of the cross plate 52 opposite to the lower-chord steel bar 3, and the end of the lower-chord steel bar 3 is arranged in the secondary groove 54, so that the end of the upper-chord steel bar 2 is in the primary groove 53 and the end of the lower-chord steel bar 3 is in the secondary groove 54, and the cross plate 52 is fixed to the bottom plate 1 using positioning bolts, thereby fixing the column 51.

[0026] refer to Figure 1 , Figure 3-Figure 5 As shown, the lifting module 6 also includes a primary assembly panel 64, a mounting panel 65 and a limiting panel 66. The mounting panel 65 is symmetrically connected to both sides of the round rod 61 front and back. The primary assembly panel 64 is arranged between the two groups of mounting panels 65, and the mounting panel 65 is fixedly connected to the primary assembly panel 64 by positioning bolts. The primary assembly panel 64 is in an L-shaped structure, and the primary assembly panel 64 is fixedly connected to the cross plate 52 by positioning bolts. The limiting panel 66 is symmetrically connected to both sides of the primary assembly panel 64 front and back, and the limiting panel 66 is in an L-shaped structure. The limiting panel 66 is at the bottom of the mounting panel 65. The primary assembly panel 64 is fixed to the cross plate 52 by positioning bolts, and the mounting panel 65 is connected and fixed to the primary assembly panel 64 by positioning bolts. Under the restriction of the limiting panel 66, the stability of the mounting panel 65 is guaranteed.

[0027] refer to Figure 1 , Figure 3-Figure 5As shown, the lifting module 6 also includes a secondary assembly plate 67, a rotating sleeve 68, a threaded rod 69 and a connecting plate 610. The threaded rod 69 is connected to the end of the pull rope 63 opposite to the hook 62. The rotating sleeve 68 is sleeved on the outer wall of the threaded rod 69, and the outer wall of the threaded rod 69 is threadedly connected to the rotating sleeve 68 through an external thread. The secondary assembly plate 67 is bearing-connected to the end of the rotating sleeve 68 opposite to the threaded rod 69, and the secondary assembly plate 67 is respectively fitted with the cross plate 52 and the bottom plate 1. The connecting plate 610 is symmetrically connected to the bottom ends of both sides of the secondary assembly plate 67 front and back, and the connecting plate 610 is fixedly connected to the bottom plate 1 through positioning bolts. The rotating sleeve 68 is rotated to make the threaded rod 69 shrink toward the rotating sleeve 68, thereby pulling the pull rope 63, and finally tightening the primary assembly plate 64 and the secondary assembly plate 67.

[0028] refer to Figure 1 , Figure 3 , Figure 4 and Figure 6 As shown, the monitoring module 7 also includes a clamping rod 72, a warning light 73, an arc plate 74 and a collar 75. The clamping rod 72 is symmetrically connected to both sides of the pressure sensor 71. The warning light 73 is connected to the top of the clamping rod 72 on the left side. The arc plate 74 is connected to the end of the clamping rod 72 opposite to the pressure sensor 71, and the inner wall of the arc plate 74 is in contact with the column 51. The collar 75 is connected to the top of the arc plate 74, and the collar 75 is sleeved on the outer wall of the column 51. The collar 75 is sleeved on the column 51, so that The monitoring module 7 is set up so that the left and right groups of base plates 1 can pull each other. When pulling, the force of the two groups of clamping rods 72 pressing against the pressure sensor 71 will gradually increase. When the value monitored by the pressure sensor 71 reaches a preset value, the pressure sensor 71 transmits the data to the external terminal. The external terminal receives the data and controls the prompt light 73 to turn on, reminding personnel that the connection strength of the left and right groups of base plates 1 meets the standard, thereby ensuring the connection effect of the left and right groups of floor decking plates and preventing the insufficient connection strength between the left and right groups of base plates 1 from affecting the building quality.

[0029] refer to Figure 1-Figure 4 As shown, a snap-fit ​​strip 11 is connected to the middle of the left side of the bottom plate 1, and a snap-fit ​​slot 12 is provided in the middle of the right side of the bottom plate 1, so that the snap-fit ​​strip 11 at the left end of the bottom plate 1 on the right side is snapped into the snap-fit ​​slot 12 at the right end of the bottom plate 1 on the left side, thereby completing the preliminary fixation between the left and right groups of bottom plates 1.

[0030] Working principle: Use positioning bolts to connect and fix the positioning plate 44 to the bottom plate 1, so as to complete the assembly of the inverted V frame 41, and respectively pass the upper chord steel bar 2 and the lower chord steel bar 3 through the primary circular hole 42 and the secondary circular hole 43, set the column 51 on the top of the bottom plate 1, and make the end of the upper chord steel bar 2 in the primary groove 53 and the end of the lower chord steel bar 3 in the secondary groove 54, use positioning bolts to fix the cross plate 52 to the bottom plate 1, so as to fix the column 51, and then fix the left and right bottom plates. When connecting the two bottom plates 1, the snap-fit ​​strip 11 at the left end of the bottom plate 1 on the right side is snapped into the snap-fit ​​notch 12 at the right end of the bottom plate 1 on the left side, thereby completing the preliminary fixation between the left and right bottom plates 1. Then, the monitoring module 7 is set, that is, the collar 75 is set on the column 51, the lifting module 6 is set above the two bottom plates 1, and the first-level assembly plate 64 is fixed to the cross plate 52 and the connecting plate 610 is fixed to the bottom plate 1 using the positioning bolts. Then, the positioning bolts are used to fix the first-level assembly plate 64 to the cross plate 52 and the connecting plate 610 to the bottom plate 1. The bolts connect and fix the mounting plate 65 and the primary assembly plate 64, complete the setting of the round rod 61, hang the hook 62 on the round rod 61, rotate the rotating sleeve 68, make the threaded rod 69 shrink into the rotating sleeve 68, thereby pulling the pull rope 63, and finally tightening the primary assembly plate 64 and the secondary assembly plate 67, and the lifting module 6 is divided into two cross-set groups of primary assembly plates 64, mounting plates 65, limit plates 66, secondary assembly plates 67, rotating sleeves 68, screws The grooved rod 69, the connecting plate 610, the pull rope 63, the hook 62 and the round rod 61 ensure that the left and right groups of bottom plates 1 can pull each other. When pulling, the force of the two groups of pressing rods 72 pressing against the pressure sensor 71 will gradually increase. When the value monitored by the pressure sensor 71 reaches a preset value, the pressure sensor 71 transmits the data to the external terminal. The external terminal receives the data and controls the prompt light 73 to turn on, reminding personnel that the connection strength of the left and right groups of bottom plates 1 meets the standard, thereby ensuring the connection effect of the left and right groups of floor decking.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An assembled formwork-free steel truss floor deck, comprising a bottom plate (1), an upper chord steel bar (2) and a lower chord steel bar (3), characterized in that: The upper chord steel bars (2) are equidistantly arranged above the bottom plate (1), the lower chord steel bars (3) are symmetrically arranged below the upper chord steel bars (2), the top of the bottom plate (1) is provided with a support module (4) in an array, the support module (4) comprises an inverted V frame (41), the inverted V frame (41) is arranged on the top of the bottom plate (1), the top of the bottom plate (1) is symmetrically and equidistantly provided with a stabilizing module (5), the stabilizing module (5) comprises a column (51) and a cross plate (52), the column (51) is symmetrically arranged on both sides of the upper chord steel bars (2), the cross plate (52) is symmetrically connected to the bottom of both sides of the column (51), and the cross plate (52) is fixedly connected to the bottom plate (1) by positioning bolts, and the two groups A lifting module (6) is equidistantly connected above the bottom plates (1), and the lifting module (6) is connected between the left and right groups of stabilizing modules (5). The lifting module (6) comprises a round rod (61), a hook (62), and a pull rope (63). The round rod (61) is respectively arranged on the front side of the column (51) located on the left and the rear side of the column (51) located on the right. The hook (62) is hung on the outer wall of the round rod (61). The pull rope (63) is connected to one side of the hook (62). A monitoring module (7) is arranged above the lifting module (6) located in the middle. The monitoring module (7) comprises a pressure sensor (71). The pressure sensor (71) is located in the middle above the lifting module (6). The monitoring module (7) further comprises a pressing rod (72), a warning light (73), an arc-shaped plate (74) and a collar (75); the pressing rod (72) is symmetrically connected to both sides of the pressure sensor (71); the warning light (73) is connected to the top end of the pressing rod (72) located on the left side; the arc-shaped plate (74) is connected to the end of the pressing rod (72) opposite to the pressure sensor (71); the inner wall of the arc-shaped plate (74) is in contact with the column (51); the collar (75) is connected to the top end of the arc-shaped plate (74); and the collar (75) is sleeved on the outer wall of the column (51); The stabilizing module (5) further comprises a primary groove (53) and a secondary groove (54), wherein the primary groove (53) is provided on a side of the column (51) opposite to the upper chord steel bar (2), and the end of the upper chord steel bar (2) is arranged in the primary groove (53), and the secondary groove (54) is provided on a side of the transverse plate (52) opposite to the lower chord steel bar (3), and the end of the lower chord steel bar (3) is arranged in the secondary groove (54); The lifting module (6) further comprises a primary assembly plate (64), a mounting plate (65) and a limiting plate (66); the mounting plate (65) is symmetrically connected to both sides of the round rod (61) in a front-to-back manner; the primary assembly plate (64) is arranged between the two groups of mounting plates (65); the mounting plate (65) is fixedly connected to the primary assembly plate (64) by means of positioning bolts; the primary assembly plate (64) is in an L-shaped structure; the primary assembly plate (64) is fixedly connected to the cross plate (52) by means of positioning bolts; the limiting plate (66) is symmetrically connected to both sides of the primary assembly plate (64) in a front-to-back manner; the limiting plate (66) is in an L-shaped structure; the limiting plate (66) is located at the bottom of the mounting plate (65); The lifting module (6) further comprises a secondary assembly plate (67), a rotating sleeve (68), a threaded rod (69) and a connecting plate (610), wherein the threaded rod (69) is connected to the end of the pull rope (63) opposite to the hook (62), the rotating sleeve (68) is sleeved on the outer wall of the threaded rod (69), and the outer wall of the threaded rod (69) is threadedly connected to the rotating sleeve (68) via an external thread, the secondary assembly plate (67) is bearing-connected to the end of the rotating sleeve (68) opposite to the threaded rod (69), and the secondary assembly plate (67) is respectively fitted with the cross plate (52) and the bottom plate (1), the connecting plate (610) is symmetrically connected to the bottom ends of both sides of the secondary assembly plate (67), and the connecting plate (610) is fixedly connected to the bottom plate (1) via positioning bolts.

2. The assembled formwork-free steel truss floor deck according to claim 1 is characterized in that: The support module (4) further comprises a primary circular hole (42), a secondary circular hole (43) and a positioning plate (44); the primary circular hole (42) is arranged at the upper part of the inverted V frame (41), and the primary circular hole (42) penetrates the inverted V frame (41) from left to right; the upper chord steel bar (2) penetrates the primary circular hole (42); the secondary circular hole (43) is symmetrically arranged at the lower part of the inverted V frame (41) from front to back, and the secondary circular hole (43) penetrates the inverted V frame (41) from left to right; the lower chord steel bar (3) penetrates the secondary circular hole (43); the positioning plate (44) is connected to the bottom of the inverted V frame (41), and the positioning plate (44) is fixedly connected to the bottom plate (1) via positioning bolts.

3. The assembled formwork-free steel truss floor deck according to claim 1 is characterized in that: The inverted V-frame (41) is symmetrically connected to a square plate (45) at the front and rear, and a reinforcing frame plate (46) is connected to the side of the square plate (45) opposite to the inverted V-frame (41), and the bottom surface of the square plate (45) and the bottom surface of the reinforcing frame plate (46) are both in contact with the bottom plate (1).

4. The assembled formwork-free steel truss floor deck according to claim 1 is characterized in that: A snap-fit ​​strip plate (11) is connected to the middle of the left side of the bottom plate (1), and a snap-fit ​​notch (12) is provided in the middle of the right side of the bottom plate (1).

Images