Assembled steel truss floor deck with support and installation method thereof

Abstract

The present invention discloses an assembled, supported steel truss floor deck, comprising a panel body and a truss body fixed to the top of the panel body. The panel body is provided with a rectangular opening at its end edge near a steel structure column. Supporting devices are provided at the bottoms of two adjacent sides of the rectangular opening, each with a support surface arranged along the corresponding edge of the rectangular opening and movable perpendicularly to the corresponding edge of the rectangular opening. The present invention also discloses a method for installing the assembled, supported steel truss floor deck. The present invention is convenient, efficient, and cost-effective, and can be widely applied to construction technology.

Description

Technical Field

[0001] The present invention relates to building construction technology, in particular to an assembled reinforced steel truss floor deck with support and an installation method thereof. Background Art

[0002] Prefabricated steel truss floor decking is a new type of building component. Composed of corrugated steel sheets and steel trusses welded together into a single structure, this decking offers advantages such as eliminating the need for on-site formwork support, high construction quality, and rapid construction. It significantly reduces on-site rebar tying, speeds up construction progress, enhances safety, and promotes civilized construction. Furthermore, prefabricated formwork and connectors are easily assembled and disassembled, can be reused multiple times, conserves steel, and meets national energy conservation and environmental protection requirements.

[0003] During installation, the steel truss floor decking is hoisted to the floor where it needs to be installed using hoisting equipment, and the floor slab is laid in one direction. When installing the side formwork that contacts the corners of the steel structure columns, it is necessary to first weld a supporting steel plate on the surface of the steel structure, and then fit the contact corner surface of the side formwork with the column and place it on the supporting steel plate. This method requires additional welding time and welding materials, resulting in low efficiency during the installation of the side formwork of the floor decking, which increases costs. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned background technology and provide an assembled steel truss floor deck with support and an installation method thereof, so that it can be convenient, fast, efficient and low-cost.

[0005] The present invention provides an assembled reinforced steel truss floor deck with support, comprising a plate body and a truss body fixed to the top of the plate body, wherein the end edge of the plate body close to the steel structure column is provided with a rectangular opening, and the bottoms of the two adjacent sides of the rectangular opening of the plate body are respectively provided with support surfaces arranged along the corresponding edges of the rectangular opening and support devices that can move perpendicular to the corresponding edges of the rectangular opening.

[0006] In the above technical solution, the supporting device has a rotating shaft located at the top of the plate body and passing through the plate body to rotate with the plate body. The bottom of the rotating shaft is provided with a gear located below the plate body and coaxially arranged with the rotating shaft. The adjacent two sides of the rectangular opening of the plate body are respectively provided with groove plates arranged along the corresponding edges. Next to the tooth surface of the gear are respectively provided with a first tooth plate and a second tooth plate that meshes with it and whose tooth surfaces are perpendicular to each other. The back side of the tooth surface of the first tooth plate is vertically connected to the end of one of the groove plates. The second tooth plate is an overall "C"-shaped structure. One end of the second tooth plate is provided with a tooth surface meshing with the gear, and the other end is vertically connected to the end of the other groove plate.

[0007] In the above technical solution, a "T"-shaped structure is provided on the top of the first tooth plate and arranged in the same direction, and a "T"-shaped structure is provided on the top of the second tooth plate and arranged in the same direction. The top of the first tooth plate and the top of the second tooth plate are respectively provided with T-shaped grooves matching the "T"-shaped structure. The T-shaped groove corresponding to the first tooth plate is perpendicular to the groove plate connected to the first tooth plate, and the T-shaped groove corresponding to the second tooth plate is perpendicular to the groove plate connected to the second tooth plate.

[0008] In the above technical solution, the slot plate is provided with a through slot with two open sides along its axial direction, and a rectangular slot is provided on the side of the slot plate facing the steel structure column, and a rubber plate and a limit slot are provided in the through slot, and the side of the rubber plate facing away from the steel structure column is inserted into the limit slot, and the other side passes through the rectangular slot and faces the steel structure column, and an octahedral column composed of a square column and a trapezoidal column is provided on the side of the through slot facing away from the steel structure column, and the middle thickness of the octahedral column is greater than the thickness at both ends, and the middle and both ends of the octahedral column are respectively connected by inclined surfaces. The octagonal column is connected, and the inclined surfaces in the middle and at both ends are located in the sliding groove opposite to the rectangular groove. A round rod is provided on the middle side of the octagonal column, and a cylinder is provided on the outer sleeve of the round rod for sliding cooperation with the octagonal column. One end of the cylinder is provided with two rotating rods symmetrically hinged to the cylinder at one end, and the other end of each rotating rod is provided with an abutment groove which is sleeved with the end of the octagonal column. Limiting guide grooves are provided on both sides of the through groove in the same direction as the through groove and connected to the through groove. Cards are respectively provided on both sides of the abutment groove of each rotating rod for being stuck in the limiting guide groove.

[0009] In the above technical solution, a plurality of horizontally arranged rubber rods evenly distributed from top to bottom are provided on the side of the rubber plate facing the steel structure column.

[0010] In the above technical solution, a ratchet ring is coaxially provided on the rotating shaft between the gear and the plate body, a gear rod is provided on the bottom surface of the plate body next to the ratchet ring and is hingedly connected to the gear rod, the gear rod is engaged with the ratchet ring, and a rectangular block with one side facing the gear rod is provided next to the side of the gear rod facing away from the ratchet ring, and the rectangular block and the gear rod are connected by a spring.

[0011] In the above technical solution, a protective device covering the supporting device is provided at the bottom of the rectangular opening of the plate body. The protective device includes a baffle with an overall "L"-shaped structure. Two support rods are fixed on the top of the baffle, and each support rod is provided with a rubber block that can be inserted into the T-shaped slot.

[0012] In the above technical solution, the back sides of the tooth surfaces of the first tooth plate and the second tooth plate are provided with a positioning block connected to the top surface and the bottom surface of the plate body; an inclined rod is respectively provided between the first tooth plate and the second tooth plate and the corresponding slot plate, wherein one end of an inclined rod is connected to the back side of the tooth surface of the first tooth plate, and the other end is connected to the corresponding slot plate, and one end of the other inclined rod is connected to one end connected to the second tooth plate and the corresponding slot plate, and the other end is connected to the corresponding slot plate; the tooth surface of the ratchet ring is provided with a first protrusion on the side facing the gear rod, and the gear rod is provided with a second protrusion on the side facing the ratchet ring, and the first protrusion and the second protrusion cooperate with each other; a handle is provided on the top of the rotating shaft, and several vertical protrusions are provided on the side walls of the handle; baffles are respectively provided on both sides of the side of the rectangular block facing the gear rod; a convex ring is provided on one end of the cylinder facing the slot plate, and the rotating rod is hingedly connected to the convex ring; a groove is provided at the bottom of the baffle, and a pull rope is provided at the edge of the groove.

[0013] The present invention also provides a method for installing an assembled steel truss floor deck with support, which comprises the following steps: S1, fitting the rectangular opening at the edge of the plate body to the edge corner of the steel structure column through a hoisting device, and placing the truss body steel bars protruding from both ends of the plate body on the two side surfaces of the steel structure column; S2, rotating the top end edge shaft of the plate body to control the rotation of the gear, driving the top ends of the first tooth plate and the second tooth plate to move axially on the inner wall of the T-slot respectively, driving the slot plates on one side of the first tooth plate and the second tooth plate to move toward the steel structure column, and when the two slot plates move, the round rods are driven to slide on the inner wall of the cylinder toward the slot plates; S3, the two slot plates are driven to slide on the inner wall of the cylinder toward the slot plates; The end of the rotating rod where the abutment groove is located moves toward the steel structure column, and the end of the rotating rod hinged to the cylinder rotates relatively, and the two abutment grooves move closer along the two inclined surfaces of the octahedral column and push the octahedral column to move in the direction of the rubber plate in the slide groove. The rubber plate is deformed and pushes the rubber rod out of the rectangular groove of the groove plate; S4, the convex teeth of the ratchet ring contact the gear rod, pushing the gear rod to rotate and compressing the spring. When the rotating shaft stops rotating, the spring returns to its original shape and pushes the gear rod to fit into the tooth surface of the ratchet ring, supporting the contact between the rectangular opening of the plate body and the steel structure column, and placing the subsequent floor decking plates on the surface of the steel structure column, and welding the floor decking plates to the steel structure column.

[0014] In the above technical solution, in step S1, before hoisting the board body, the pull ropes on both sides of the bottom end of the board body are pulled to pull the rubber block on the top end of the round rod out from the inside of the T-shaped slot to remove the baffle.

[0015] The assembled reinforced steel truss floor deck with support and the installation method thereof of the present invention have the following beneficial effects:

[0016] 1) By setting up a supporting device, the groove plate and the octahedral column are controlled to move by rotating the rotating shaft, and the rubber plate is deformed to make the groove plate and the rubber rod of the protruding rectangular groove press against the surface of the steel structure column, thereby limiting the relative position and angle between the rectangular opening of the plate body and the steel structure column, and supporting the contact between the rectangular opening of the plate body and the steel structure column. There is no need to support the lower side formwork by welding the supporting steel plate on the surface of the steel structure column, which increases the convenience of using the floor deck and saves construction costs.

[0017] 2) By setting up two sets of protective devices on both sides of the bottom end of the panel, when transporting and stacking the floor decking, rubber blocks can be inserted into the ends of the round rods at the T-shaped grooves at the ends of the panels, and the baffles can be fixed under the supporting devices at the bottom ends of the panels to protect the supporting devices and avoid as much as possible the supporting devices from being damaged by collisions when transporting the floor decking.

[0018] 3) By providing the first protrusion and the second protrusion, the first protrusion on the protruding teeth on the outer surface of the ratchet ring and the second protrusion on the outer surface of the gear rod can more easily push the gear rod to rotate when they contact each other, and are not likely to get stuck with each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a top view of the overall structure of the assembled reinforced steel truss floor deck with support of the present invention;

[0020] Figure 2 This is a bottom view of the overall structure of the assembled reinforced steel truss floor deck with support of the present invention;

[0021] Figure 3 This is a schematic diagram of the overall structure of the plate body and the supporting device in Example 1 of the assembled reinforced steel truss floor deck with support of the present invention;

[0022] Figure 4 for Figure 3 A magnified view of the structure at point A;

[0023] Figure 5 This is a schematic diagram of the structure of various devices on the bottom surface of the panel in Example 1 of the assembled reinforced steel truss floor deck with support of the present invention;

[0024] Figure 6 for Figure 5 A magnified view of the structure at B in the middle;

[0025] Figure 7 This is a front view of the exterior structure of the channel plate and accompanying components in Example 1 of the assembled reinforced steel truss floor deck with support of the present invention;

[0026] Figure 8 This is a rear view of the exterior structure of the channel plate and accompanying components in Example 1 of the prefabricated reinforced steel truss floor deck with support of the present invention;

[0027] Figure 9 This is a rear view of the internal structure of the channel plate and accompanying components in Example 1 of the prefabricated reinforced steel truss floor deck with support of the present invention;

[0028] Figure 10 for Figure 5 A magnified view of the structure at C in the middle;

[0029] Figure 11 This is a schematic structural diagram of the first tooth plate and the diagonal rod in Example 1 of the assembled reinforced steel truss floor deck with support of the present invention;

[0030] Figure 12 This is a schematic structural diagram of the baffle in Example 2 of the assembled reinforced steel truss floor deck with support of the present invention;

[0031] Figure 13 The present invention discloses a method for installing an assembled reinforced steel truss floor deck with support. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and examples, but the examples should not be construed as limiting the present invention.

[0033] Reference Figure 1-2 As shown, the present invention provides an assembled supported steel truss floor decking, including a plate body 1, which is the edge formwork in the steel truss floor decking, and a plurality of truss bodies 4 are arranged on the top of the plate body 1, and the truss bodies 4 are made of steel bars as upper chords, lower chords and webs, and are connected by resistance spot welding, and the truss bodies 4 and the plate body 1 are fixedly connected by welding, and the end edge of the plate body 1 close to the steel structure column is provided with a rectangular opening, and the rectangular opening of the plate body 1 is provided with two groups of supporting devices 2, and the two groups of supporting devices 2 are respectively located below the rectangular opening of the plate body 1. When installing the steel truss floor decking, the rectangular opening of the plate body 1 is fitted onto the edge corners of the steel structure column (not shown in the figure), so that the truss bodies 4 protruding from both ends of the plate body 1 are placed on the surface of the steel structure on both sides of the column, and then the subsequent floor decking is placed on the surface of the steel structure column in turn, and the floor decking is fixed to the steel structure column by welding.

[0034] Example 1

[0035] Reference Figure 3-11 As shown, the support device 2 includes a rotating shaft 21, a first tooth plate 24 and a second tooth plate 25. The outer surface of the rotating shaft 21 is rotatably connected to the inner wall of the plate body 1. In one or more embodiments, the rotatable connection is a clearance fit or a bearing connection; see Figures 4 to 6The top of the first tooth plate 24 is provided with a "T"-shaped structure arranged in the same direction, and the top of the second tooth plate 25 is provided with a "T"-shaped structure arranged in the same direction. The top of the first tooth plate 24 and the top of the tooth surface of the second tooth plate 25 are respectively provided with T-shaped grooves 23 that match the "T"-shaped structure. The bottom end of the rotating shaft 21 is fixedly connected to the gear 22. The two T-shaped grooves 23 respectively opened in the rectangular opening of the plate body 1 are perpendicular to each other. The two T-shaped grooves 23 located on one side of the bottom end of the plate body 1 are perpendicular to each other. The tops of the first tooth plate 24 and the second tooth plate 25 are respectively provided with T-shaped grooves 23 that match the "T"-shaped structure. The ends slide on the inner walls of two mutually perpendicular T-shaped grooves 23, and the tooth surface of the gear 22 meshes with one side of the first tooth plate 24 and the second tooth plate 25. One end of the first tooth plate 24 and the second tooth plate 25 are respectively fixedly connected with a groove plate 26, wherein the back of the tooth surface of the first tooth plate 24 is vertically connected to the end of one of the groove plates 26. The second tooth plate 25 is a "C"-shaped structure as a whole. One end of the second tooth plate 25 is provided with a tooth surface meshing with the gear 22, and the other end is vertically connected to the end of the other groove plate 26. Figures 6 to 9 The outer surface of the groove plate 26 is provided with a rectangular groove 27, the inner wall of the groove plate 26 is fixedly connected with a rubber plate 28, the upper and lower ends of the rubber plate 28 are fixedly connected to the inner wall of the groove plate 26, the side of the rubber plate 28 facing the steel structure column is fixedly connected with a plurality of rubber rods 29, the side of the groove plate 26 facing the steel structure column is provided with a slide 210, the inner wall of the slide 210 is slidably connected with an octahedral column 211, one end of the octahedral column 211 is fixedly connected with a round rod 212, the plate body 1 Two cylinders 213 are fixedly connected to the adjacent sides of the rectangular opening, and the outer surface of the round rod 212 slides on the inner wall of the cylinder 213. Two rotating rods 214 are symmetrically provided on the outer edge of one end of the cylinder 213, and the cylinder 213 is provided with a convex ring on the end facing the groove plate 26. The rotating rod 214 is hingedly connected to the convex ring. The end of the rotating rod 214 away from the cylinder 213 slides on the inner wall of the groove plate 26. One end of the rotating rod 214 is provided with an abutment groove 215. Figure 4 、 Figure 6 and Figure 10The middle part of the rotating shaft 21 is coaxially fixedly connected with a ratchet ring 216, and the ratchet ring 216 is located between the gear 22 and the plate body 1. The bottom end of the plate body 1 next to the ratchet ring 216 is fixedly connected with a rectangular block 218 and a rotatable gear rod 217. A spring 219 is provided on one side of the rectangular block 218. The two ends of the spring 219 are respectively fixedly connected to one side of the rectangular block 218 and one side of the gear rod 217. By providing a slot plate 26, the rectangular opening of the plate body 1 is clamped on the surface corner of the steel structure column. After processing, the rotating shaft 21 can be rotated on both sides of the top of the plate body 1, and the gear 22 is controlled to rotate by the rotating shaft 21, so that the gear 22 drives the first The bottom ends of the tooth plate 24 and the second tooth plate 25 slide on the inner walls of the two mutually perpendicular T-shaped grooves 23 respectively, thereby driving the groove plate 26 on one side of the first tooth plate 24 and the second tooth plate 25 to move toward the rectangular opening of the plate body 1 and the steel structure column. When the two groove plates 26 move, they will drive the round rod 212 at one end of the octagonal column 211 to move along the inner wall of the cylinder 213 toward the groove plate 26. At this time, the two rotating rods 214 at one end of the cylinder 213 connected to the octagonal column 211 will slide in the limiting guide groove in the groove plate 26 and the end connected to the convex ring will rotate, so that the two rotating rods 214 move closer to each other. The abutment groove 215 connected to the octagonal column 211 will gradually contact the two inclined surfaces at one end of the octagonal column 211 and push the octagonal column 211 to slide along the inner wall of the slide groove 210 toward the rubber plate 28. After one side of the octagonal column 211 contacts one side of the rubber plate 28, continuing to move will push the rubber plate 28 to deform, causing several rubber rods 29 on one side of the rubber plate 28 to protrude from the rectangular groove 27 on the outer surface of the groove plate 26. During the rotation of the rotating shaft 21, the convex teeth on the tooth surface of the ratchet ring 216 contact the gear rod 217 and push the gear rod 217 to rotate and compress the spring 219. When the rotating shaft 21 stops rotating, the spring 219 will return to its original shape and push the gear rod 217. A convex tooth is stuck in the tooth surface of the ratchet ring 216, so that the ratchet ring 216 and the rotating shaft 21 cannot rotate independently. By setting the supporting device 2, the groove plate 26 and the octahedral column 211 are controlled to move by rotating the rotating shaft 21, so that the rubber plate 28 is deformed and the rubber rod 29 is pushed out of the rectangular groove 27 of the groove plate 26, thereby limiting the relative position and angle between the rectangular opening of the plate body 1 and the steel structure column, and supporting the contact between the adjacent two sides of the rectangular opening of the plate body 1 and the steel structure column. There is no need to support the bottom of the opposite side template by welding the support steel plate on the surface of the steel structure column, which increases the convenience of using the floor deck and saves construction costs.

[0036] Reference Figure 10 As shown, one side of the rectangular block 218 is fixedly connected to two baffles 220, which are respectively located on the left and right sides of the spring 219. By setting the baffles 220, the outer surface shape of the spring 219 can be reinforced to avoid the distortion of the spring 219 when it is deformed as much as possible, which affects the normal use. Figure 6One side of the first tooth plate 24 and the second tooth plate 25 is respectively fixedly connected with a positioning block 221, and one side of the positioning block 221 slides on one side of the plate body 1. The rotating shaft 21 controls the gear 22 to drive the first tooth plate 24 and the second tooth plate 25 to move so that the positioning blocks 221 on the back side of the tooth surface of the first tooth plate 24 and the second tooth plate 25 slide on the bottom surface of the plate body 1, further limiting the angle between the first tooth plate 24 and the second tooth plate 25 and the plate body 1, and avoiding the angle of the first tooth plate 24 and the second tooth plate 25 from deflecting when moving as much as possible.

[0037] Reference Figure 11 As shown, the back of the tooth surface of the first tooth plate 24 is fixedly connected to an inclined rod 222, and the inclined rod 222 connected to the first tooth plate 24 is fixedly connected to one side of the corresponding slot plate 26, and another inclined rod 222 is fixedly connected between one end of the second tooth plate 25 connected to the corresponding slot plate 26 and the slot plate 26. By providing the inclined rod 222, the connection between the slot plate 26 and the first tooth plate 24 or the second tooth plate 25 can be reinforced, and bending deformation of the connection between the slot plate 26 and the first tooth plate 24 or the second tooth plate 25 can be avoided as much as possible when one side of the slot plate 26 is subjected to force. Figure 10 , a plurality of first protrusions 223 are fixedly connected to the side of the tooth surface of the ratchet ring 216 facing the gear rod 217, and a second protrusion 224 is fixedly connected to the side of the gear rod 217 facing the ratchet ring 216. The edges of the first protrusions 223 and the second protrusions 224 are arc-shaped. The first protrusions 223 and the second protrusions 224 cooperate with each other. By arranging the first protrusions 223 and the second protrusions 224, it is easier to push the gear rod 217 to rotate when the first protrusions 223 on the outer surface of the ratchet ring 216 contact the second protrusions 224 on the outer surface of the gear rod 217, and it is not easy to get stuck with each other. Figure 4 The top of the rotating shaft 21 is fixedly connected with a handle 225, and the side wall of the handle 225 is fixedly connected with a plurality of vertical protrusions. By holding the protrusions on the side wall of the handle 225, the handle 225 can be pushed more conveniently to control the rotation of the rotating shaft 21.

[0038] Example 2

[0039] Example 2 is basically the same as Example 1, except that:

[0040] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 12As shown, two sets of protective devices 3 are provided at the bottom of the rectangular opening of the plate body 1. The protective device 3 includes a baffle 31 with an overall "L"-shaped structure. The top of the baffle 31 is fixedly connected to two support rods 32. The two support rods 32 are fixedly connected to a rubber block 33 at one end away from the plate body 1. When transporting and stacking the floor decking, the rubber blocks 33 at one end of the two support rods 32 at the bottom end of the plate body 1 can be inserted into the T-grooves 23 at the two T-grooves 23 on both sides of the bottom end of the plate body 1, and the baffle 31 is fixed under the supporting device 2 at the bottom end of the plate body 1 to protect the supporting device 2 and avoid as much as possible the supporting device 2 from being affected by collision when transporting the floor decking and affecting normal use.

[0041] Reference Figure 2 、 Figure 3 and Figure 12 As shown, a pull rope 34 is fixedly connected to the bottom end of the baffle 31. The pull rope 34 is an elastic rope with a certain elasticity. When installing the floor deck, the pull rope 34 can be pulled to facilitate the control of the baffle 31 to pull out the rubber block 33 at one end of the round rod 212 from the inside of the T-shaped slot 23. A groove 35 is provided at the bottom end of the baffle 31. The two ends of the pull rope 34 are located inside the groove 35. After the protective device 3 is removed, the pull rope 34 can be stuffed into the groove 35 to facilitate the storage of the baffle 31.

[0042] Example 3

[0043] See also Figure 13 The method for installing the assembled reinforced steel truss floor deck with support of the present invention (i.e., the operating principle of the present invention) comprises the following steps:

[0044] S1. Pull the ropes 34 on both sides of the bottom end of the plate body 1 to pull the rubber block 33 on the top of the round rod 212 out from the inside of the T-shaped slot 23, remove the baffle 31, and use the lifting equipment to fit the rectangular opening at the end edge of the plate body 1 to the edge corner of the steel structure column. Place the truss body 4 steel bars protruding from both ends of the plate body 1 on the two side surfaces of the steel structure column;

[0045] S2. The rotating shaft 21 at the top edge of the rotating plate 1 controls the gear 22 to rotate, driving the top ends of the first tooth plate 24 and the second tooth plate 25 to move axially on the inner wall of the T-shaped slot 23, respectively, driving the slot plates 26 on one side of the first tooth plate 24 and the second tooth plate 25 to move toward the steel structure column. When the two slot plates 26 move, they drive the round rod 212 to slide on the inner wall of the cylinder 213 toward the slot plates 26;

[0046] S3. The ends of the two rotating rods 214 where the grooves 215 are located move toward the steel structure column. The ends of the rotating rods 214 and the cylinder 213 that are hinged rotate relative to each other. The two abutting grooves 215 move closer along the two inclined surfaces of the octahedral column 211 and push the octahedral column 211 to move in the sliding groove 210 toward the rubber plate 28. The rubber plate 28 deforms and pushes the rubber rod 29 out of the rectangular groove 27 of the groove plate 26.

[0047] S4. The protruding teeth of the ratchet ring 216 contact the gear rod 217, pushing the gear rod 217 to rotate and compressing the spring 219. When the rotating shaft 21 stops rotating, the spring 219 returns to its original shape and pushes the gear rod 217 to engage the tooth surface of the ratchet ring 216, so that the ratchet ring 216 and the rotating shaft 21 cannot rotate independently, restricting the relative position and angle between the rectangular opening of the plate body 1 and the steel structure column, supporting the contact between the rectangular opening of the plate body 1 and the steel structure column, placing the subsequent floor decking plates on the surface of the steel structure column, and welding the floor decking plates to the steel structure column.

[0048] Innovation

[0049] 1) By setting up the supporting device 2, the groove plate and the octahedral column 211 are controlled to move by rotating the rotating shaft 21, so that the rubber plate 28 is deformed to press the groove plate 26 and the rubber rod 29 with the protruding rectangular groove 27 against the surface of the steel structure column, thereby limiting the relative position and angle between the rectangular opening of the plate body 1 and the steel structure column, and supporting the contact between the rectangular opening of the plate body 1 and the steel structure column. There is no need to support the lower side formwork by welding the supporting steel plate on the surface of the steel structure column, which makes the truss floor deck more convenient to use and saves construction costs.

[0050] 2) By providing two sets of protective devices 3 on both sides of the bottom end of the panel body 1, when transporting and stacking the floor decking, the rubber blocks 33 at one end of the two round rods 212 at the top end of the panel body 1 can be inserted into the two T-shaped grooves 23 on both sides of the bottom end of the panel body 1, and the baffles 31 can be fixed under the supporting device 2 at the bottom end of the panel body 1 to protect the supporting device 2 and avoid as much as possible the supporting device 2 from being affected by collisions when transporting the floor decking and affecting normal use.

[0051] 3) By providing the first protrusion 223 and the second protrusion 224 , the first protrusion 223 on the outer surface of the ratchet ring 216 and the second protrusion 224 on the outer surface of the gear rod 217 can more easily push the gear rod 217 to rotate when they contact each other and are not likely to get stuck.

[0052] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

[0053] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. An assembled reinforced truss floor deck with support, comprising a plate body and a truss body fixed to the top of the plate body, wherein the plate body has a rectangular opening at the end edge close to the steel structure column, characterized in that: The bottoms of the two adjacent sides of the rectangular opening of the plate body are respectively provided with support surfaces arranged along the corresponding edges of the rectangular opening and can move along the corresponding edges of the rectangular opening. The support device has a rotating shaft located at the top of the plate body and passing through the plate body to rotate with the plate body. The bottom of the rotating shaft is provided with a gear located below the plate body and coaxially arranged with the rotating shaft. The two adjacent sides of the rectangular opening of the plate body are respectively provided with slot plates arranged along the corresponding edges. Next to the gear tooth surface, there are respectively provided a first tooth plate and a second tooth plate that mesh with it and the tooth surfaces are perpendicular to each other. The back of the tooth surface of the first tooth plate is perpendicularly connected to the end of one of the slot plates. The second tooth plate has an overall "C"-shaped structure. One end of the second tooth plate is provided with a tooth surface that meshes with the gear, and the other end is perpendicularly connected to the end of the other slot plate. The top of the first tooth plate is provided with a "T"-shaped structure arranged in the same direction, and the top of the second tooth plate is provided with a "T"-shaped structure arranged in the same direction. The top of the first tooth plate and the top of the second tooth plate are respectively provided with T-shaped slots that match the "T"-shaped structure. The T-shaped slot corresponding to the first tooth plate is connected to the slot plate connected to the first tooth plate. The second tooth plate is vertical, and the T-shaped slot corresponding to the second tooth plate is perpendicular to the slot plate connected to the second tooth plate. The slot plate is provided with a through slot with two open sides along its axial direction. The through slot of the slot plate is provided with a rectangular slot on the side facing the steel structure column. A rubber plate and a limit slot are provided in the through slot. The side of the rubber plate facing away from the steel structure column is inserted into the limit slot, and the other side passes through the rectangular slot toward the steel structure column. An octagonal column composed of a square column and a trapezoidal column is provided on the side of the through slot facing away from the steel structure column. The thickness of the middle of the octagonal column is greater than the thickness at both ends. The middle and two ends of the octahedral column are connected by inclined surfaces respectively, and the inclined surfaces in the middle and at both ends of the octahedral column are located in the sliding groove opposite to the rectangular groove. A round rod perpendicular to it is provided on the middle side of the octahedral column, and a cylinder is provided on the outer sleeve of the round rod for sliding cooperation with it. One end of the cylinder is provided with two rotating rods symmetrically hinged to it at one end, and the other end of each rotating rod is provided with an abutment groove which is sleeved with the end part of the octahedral column, and limiting guide grooves arranged in the same direction as it and connected to the through groove are provided on both sides of the through groove, and cards that are inserted into the limiting guide grooves are provided on both sides of the abutment groove of each rotating rod.

2. The assembled reinforced truss floor deck with support according to claim 1 is characterized in that: A plurality of horizontally arranged rubber rods are evenly distributed from top to bottom on one side of the rubber plate facing the steel structure column.

3. The assembled reinforced steel truss floor deck with support according to claim 2 is characterized in that: A ratchet ring is coaxially provided on the rotating shaft between the gear and the plate body, a gear rod is provided on the bottom surface of the plate body next to the ratchet ring and is hingedly connected to the gear rod, the gear rod is meshed with the ratchet ring, and a rectangular block with one side facing the gear rod is provided next to the side of the gear rod facing away from the ratchet ring, and the rectangular block and the gear rod are connected by a spring.

4. The assembled reinforced truss floor deck with support according to claim 3 is characterized in that: A protective device covering the supporting device is provided at the bottom of the rectangular opening of the plate body. The protective device includes a baffle with an overall "L"-shaped structure. Two support rods are fixed on the top of the baffle, and each support rod is provided with a rubber block that can be inserted into the T-shaped slot.

5. The assembled reinforced steel truss floor deck with support according to claim 4 is characterized in that: The back surfaces of the first tooth plate and the second tooth plate are provided with positioning blocks whose top surfaces are connected to the bottom surfaces of the plate bodies; An oblique rod is respectively provided between the first tooth plate and the second tooth plate and the corresponding slot plate, wherein one end of one oblique rod is connected to the back surface of the tooth surface of the first tooth plate, and the other end is connected to the corresponding slot plate, and one end of the other oblique rod is connected to one end of the second tooth plate connected to the corresponding slot plate, and the other end is connected to the corresponding slot plate; A first protrusion is provided on the side of the tooth surface of the ratchet ring facing the gear rod, and a second protrusion is provided on the side of the gear rod facing the ratchet ring, wherein the first protrusion and the second protrusion cooperate with each other; A handle is provided on the top of the rotating shaft, and a plurality of vertical protrusions are provided on the side wall of the handle; The rectangular block is provided with blocking pieces on both sides of the spring on both sides of the side facing the gear rod; The cylinder is provided with a convex ring at one end facing the groove plate, and the rotating rod is hingedly connected to the convex ring; A groove is provided at the bottom of the baffle, and a pull rope is provided at the edge of the groove.

6. The method for installing a prefabricated reinforced truss floor deck with support according to claim 5, characterized in that: The following steps are involved: S1. Use the hoisting equipment to fit the rectangular opening at the end edge of the plate to the edge corner of the steel structure column, and place the truss steel bars protruding from both ends of the plate on the two side surfaces of the steel structure column; S2. The rotating shaft at the top edge of the rotating plate body controls the gear to rotate, driving the top ends of the first and second tooth plates to move axially along the inner wall of the T-slot, driving the slot plates on one side of the first and second tooth plates to move toward the steel structure column. When the two slot plates move, the round rods slide along the inner wall of the cylinder toward the slot plates. S3. The ends of the two rotating rods where the abutment grooves are located move toward the steel structure column. The ends of the rotating rods hinged to the cylinder rotate relative to each other. The two abutment grooves move closer along the two inclined surfaces of the octahedral column and push the octahedral column to move in the sliding groove toward the rubber plate. The rubber plate deforms and pushes the rubber rods out of the rectangular groove of the groove plate. S4. The convex teeth of the ratchet ring contact the gear rod, pushing the gear rod to rotate and compressing the spring. When the shaft stops rotating, the spring returns to its original shape and pushes the gear rod to engage with the tooth surface of the ratchet ring, supporting the contact point between the rectangular opening of the plate body and the steel structure column. The subsequent floor decking plates are placed on the surface of the steel structure column, and the floor decking plates and the steel structure column are welded and fixed.

7. The assembled reinforced steel truss floor deck with support according to claim 6 is characterized in that: In step S1, before hoisting the plate body, the pull ropes on both sides of the bottom end of the plate body are pulled to pull the rubber block on the top end of the round rod out from the inside of the T-shaped slot to remove the baffle.

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