Overhead cantilever steel bar truss floor support plate hanging formwork and construction method thereof

Abstract

The invention relates to the field of assembly type steel structure floor support plate installation technologies, in particular to a high-altitude overhanging steel bar truss floor support plate hanging formwork and a construction method thereof.The high-altitude overhanging steel bar truss floor support plate hanging formwork comprises a section steel column and a hanging device, and the hanging device comprises supporting I-shaped steel, a plurality of fixing assemblies, a plurality of hanging I-shaped steel, a plurality of limiting I-shaped steel and a plurality of hanging assemblies; the supporting I-shaped steel is connected to the surface of the section steel column, the fixing assemblies are connected with the hanging I-shaped steel in a one-to-one correspondence mode, the limiting I-shaped steel is connected to the surface, facing the supporting I-shaped steel, of the hanging I-shaped steel at intervals, and the hanging assemblies are connected to the surface, facing the supporting I-shaped steel, of the limiting I-shaped steel at intervals. The suspension assembly can bind and suspend lower chord steel bars on the two sides of the steel bar truss floor support plate to form a support. Through the arrangement of the hanging assembly, the construction efficiency of the hanging steel bar truss floor support plate is improved, the construction period of the hanging steel bar truss floor support plate is shortened, and therefore the construction cost of the hanging steel bar truss floor support plate is reduced.

Description

Technical Field

[0001] This application relates to the field of the installation technology of prefabricated steel structure floor bearing plates, and particularly relates to an overhead cantilevered steel bar truss floor bearing plate suspended formwork and a construction method thereof. Background Technique

[0002] The steel bar truss floor bearing plate is a combined building formwork system, which is welded by prefabricated steel bar trusses and galvanized profiled steel sheets. During the construction stage, it serves as a formwork to bear concrete and construction loads, and forms an integral stress-bearing floor slab with the concrete after pouring.

[0003] For the installation of the cantilevered steel bar truss floor bearing plate, the construction method of lower ground support is mainly adopted to prevent the deformation of the steel bar truss floor bearing plate from exceeding the limit under the action of load; however, when the height of the cantilevered steel bar truss floor bearing plate from the existing natural ground is relatively high, the height ratio of the lower ground support frame exceeds the limit, and coupled with the adverse effect of wind load, there are great safety risks, high construction costs, and it is not conducive to the construction period control. Summary of the Invention

[0004] In order to improve the problem of the construction cost of the cantilevered steel bar truss floor bearing plate, this application provides an overhead cantilevered steel bar truss floor bearing plate suspended formwork and a construction method thereof.

[0005] In a first aspect, an overhead cantilevered steel bar truss floor bearing plate suspended formwork provided by this application adopts the following technical scheme: An overhead cantilevered steel bar truss floor bearing plate suspended formwork includes a steel column and a suspension device. The bottom of the steel column can be fixed on the ground. The suspension device includes a support I-beam, a plurality of fixing components, a plurality of suspension I-beams, a plurality of limiting I-beams and a plurality of suspension components. The support I-beam is connected to the surface of the steel column. The length direction of the support I-beam is perpendicular to the length direction of the steel column. The fixing components are in one-to-one correspondence with the suspension I-beams and are connected. A plurality of the suspension I-beams are connected to the surface of the support I-beam at intervals through the fixing components. The arrangement direction of the suspension I-beams is parallel to the length direction of the support I-beam. The length direction of the suspension I-beams is perpendicular to the length direction of the support I-beam, and the length direction of the suspension I-beams is perpendicular to the length direction of the steel column. A plurality of the limiting I-beams are connected to the surface of the suspension I-beams facing the support I-beam at intervals. The arrangement direction of the limiting I-beams is parallel to the length direction of the suspension I-beams, and the length direction of the limiting I-beams is parallel to the length direction of the support I-beam. A plurality of the suspension components are connected to the surface of the limiting I-beams facing the support I-beam at intervals. The suspension components can tie and lift the lower chord steel bars on both sides of the suspended steel bar truss floor bearing plate to form a support.

[0006] By adopting the above technical solution, the bottom of the profiled steel column is fixed on the ground, the supporting I-beam is fixed on the surface of the profiled steel column, the supporting I-beam supports the hanging I-beam through the fixing component, and at the same time, a plurality of limiting I-beams are connected to the surface of the hanging I-beam at intervals, and the hanging I-beam provides support for the limiting I-beams; at the same time, a plurality of hanging components are connected to the surface of the limiting I-beam facing the supporting I-beam at intervals, and the hanging components can tie and lift the lower chord steel bars on both sides of the hanging steel bar truss floor slab to form support. The supporting I-beam is welded on the profiled steel column to provide a construction platform for the hanging I-beam, which not only does not affect the construction of the non-hanging steel bar truss floor slab, but also provides a hanging support for the construction of the hanging section of the steel bar truss floor slab, improves the construction efficiency of the hanging steel bar truss floor slab, shortens the construction period of the hanging steel bar truss floor slab, and thus reduces the construction cost of the hanging steel bar truss floor slab.

[0007] Optionally, the hanging device further includes a force-applying I-beam, the force-applying I-beam is connected to the surface of the profiled steel column, the force-applying I-beam is located on the side of the hanging I-beam away from the limiting I-beam, the length direction of the force-applying I-beam is parallel to the length direction of the supporting I-beam, and the surface of the force-applying I-beam facing the hanging I-beam is for placing the hanging steel bar truss floor slab. The hanging component includes a rotating rod, a first elastic member, a steel wire rope and a fixing block. The rotating rod is rotatably connected to the surface of the limiting I-beam, the axis of the rotating rod is parallel to the length direction of the profiled steel column, one end of the steel wire rope is wound around the outer peripheral surface of the rotating rod, the other end of the steel wire rope is fixed to the fixing block, a fixing groove for the end of the fixing block to be embedded is formed on the surface of the limiting I-beam, one end of the first elastic member in the direction of the elastic force is connected to the surface of the rotating shaft of the rotating rod, and the other end of the first elastic member in the direction of the elastic force is connected to the surface of the limiting I-beam. The first elastic member has an elastic force to drive the rotating rod to rotate and the tendency for the steel wire rope to be wound around the outer peripheral surface of the rotating rod. When the end of the steel wire rope with the fixing block penetrates through the lower chord steel bars on both sides of the hanging steel bar truss floor slab and drives the end of the fixing block to be embedded in the fixing groove, the outer peripheral surface of the fixing block abuts against the inner wall of the fixing groove to form a limit, the first elastic member drives the rotating rod to rotate, and the steel wire rope connected between the rotating rod and the fixing block is in a taut state.

[0008] By adopting the above technical solution, the hanging steel bar truss floor slab is placed on the surface of the force-applying I-beam facing the hanging I-beam. The force-applying I-beam provides support for the hanging steel bar truss floor slab. At the same time, the end of the steel wire rope with the fixing block penetrates through the lower chord steel bars on both sides of the steel bar truss floor slab and embeds the fixing block into the fixing groove. The outer peripheral surface of the fixing block abuts against the inner wall of the fixing groove to form a limit. At the same time, the first elastic member drives the rotating rod to rotate, the steel wire rope is wound around the outer peripheral surface of the rotating rod, and the steel wire rope between the fixing block and the rotating rod is in a taut state, realizing the positioning of the hanging steel bar truss floor slab, making the hanging steel bar truss floor slab not easy to shift on the force-applying I-beam, and thus improving the positioning stability of the hanging steel bar truss floor slab on the force-applying I-beam.

[0009] Optionally, the suspension assembly further includes a slider, a second elastic member, a ratchet wheel, and a pawl. The ratchet wheel is coaxially connected to the rotating rod. A chute for the slider to slide is formed on the surface of the limiting I-beam. The pawl is rotatably connected to the surface of the slider. The axis of the pawl and the axis of the rotating rod are parallel to each other. One end of the second elastic member in the direction of its elastic force is connected to the rotating shaft of the pawl, and the other end of the second elastic member in the direction of its elastic force is connected to the surface of the slider. The second elastic member has an elastic force to drive the pawl to rotate towards the ratchet wheel. The end of the pawl is embedded in the ratchet tooth ring to form an engagement, and the rotation of the rotating rod is limited. Moreover, the steel wire rope between the fixed block and the rotating rod is in a tendency of being in a taut state. When the slider slides along the inner wall of the chute away from the ratchet wheel, the end of the pawl disengages from the ratchet tooth ring, and the limiting effect of the pawl on the rotating rod disappears.

[0010] By adopting the above technical solution, when the end of the steel wire rope with the fixed block penetrates through the lower chord steel bars on both sides of the steel bar truss floor slab and the fixed block is embedded in the fixed groove, it drives the slider to slide along the inner wall of the chute towards the ratchet wheel. The elastic force of the second elastic member drives the pawl to rotate towards the ratchet wheel. The end of the pawl is embedded in the ratchet tooth ring to form an engagement, and the rotation of the rotating rod is limited, so that the steel wire rope between the rotating rod and the fixed block always remains in a taut state, thereby improving the positioning stability of the suspended steel bar truss floor slab.

[0011] Optionally, the suspension assembly further includes a power piston and a third elastic member. The end of the power piston is connected to the surface of the slider away from the ratchet wheel. A power flow channel for the power piston to slide is formed on the inner wall of the chute. The power flow channel communicates with the fixed groove. One end of the third elastic member in the direction of its elastic force is connected to the inner wall of the power flow channel, and the other end of the third elastic member in the direction of its elastic force is connected to the surface of the power piston. The third elastic member has an elastic force to drive the power piston to slide towards the power flow channel, and there is a tendency for the end of the pawl to disengage from the ratchet tooth ring.

[0012] By adopting the above technical solution, the elastic force of the third elastic member drives the power piston to slide towards the power flow channel, and the end of the pawl disengages from the ratchet tooth ring, and the limiting effect of the pawl on the ratchet wheel disappears. When the end of the steel wire rope with the fixed block penetrates through the lower chord steel bars on both sides of the steel bar truss floor slab and the fixed block is embedded in the fixed groove, the fixed groove communicates with the power flow channel, and the air in the fixed groove enters the power flow channel and impacts the surface of the power piston, driving the power piston to slide along the inner wall of the power flow channel towards the chute. The elastic force of the second elastic member drives the pawl to rotate towards the ratchet wheel. The end of the pawl is embedded in the ratchet tooth ring to form an engagement, realizing the directional limitation of the rotating rod, without the need for the staff to slide the slider, thereby improving the simplicity of using the suspended formwork of the steel bar truss floor slab at high altitude.

[0013] Optionally, the suspension assembly also includes a limit bar, the inner wall of the fixed groove is provided with a limit cavity for the limit bar to slide, and the surface of the fixed block is provided with a limit groove for the end of the limit bar to be embedded in. When the end of the fixed block is embedded in the fixed groove, the limit groove is connected to the limit cavity, driving the limit bar to slide and embed in the direction close to the limit groove, and the outer wall of the limit bar presses against the inner wall of the limit groove to form a limit.

[0014] By adopting the above technical solution, when the end of the fixed block is embedded in the fixed groove, the limit groove is connected to the fixed groove, driving the limit bar to slide along the inner wall of the limit cavity toward the limit groove, and the end of the limit bar is embedded in the limit groove, and the outer wall of the limit bar is pressed against the inner wall of the limit groove to form a limit, so that the fixed block is not easy to separate from the fixed groove, thereby improving the limiting stability of the fixed block in the fixed groove.

[0015] Optionally, the suspension assembly further includes an elastic member four, a magnetic block, an electromagnet and a contact switch, wherein one end of the elastic member four in the elastic force direction is connected to the inner wall of the limit cavity, and the other end of the elastic member four in the elastic force direction is connected to the surface of the limit bar, the elastic member four has an elastic force driving the limit bar to slide in the direction away from the limit groove, and the surface of the limit bar tends to be flush with the inner wall of the fixed groove, the electromagnet is connected to the inner wall of the limit cavity away from the fixed groove, the magnetic block is connected to the surface of the limit bar facing the electromagnet, the contact switch is connected to the inner wall of the slide groove close to the ratchet, the contact switch is electrically connected to the electromagnet, and the magnetic force of the electromagnet is greater than the elastic force of the elastic member four, when the slider slides along the inner wall of the slide groove toward the ratchet, the contact switch abuts against the surface of the slider and is turned on, the electromagnet is energized and has magnetic force, the electromagnet and the magnetic block repel each other with the same poles and drive the limit bar to slide in the direction close to the limit groove, and the end of the limit bar is embedded in the limit groove to form a limit.

[0016] By adopting the above technical scheme, when the fixed block is embedded in the fixed groove, the limit groove is connected to the limit cavity, and the air in the fixed groove enters the power flow channel and squeezes the surface of the power piston, driving the power piston to slide in the direction close to the slide groove, and the contact switch abuts the surface of the slider and is turned on, the electromagnet is energized and has magnetic force, and the electromagnet and the magnetic block repel each other with the same poles, driving the limit strip to overcome the elastic force of the elastic part and slide in the direction close to the limit groove, and the end of the limit strip is embedded in the limit groove, thereby realizing the directional sliding of the limit strip, and there is no need for the staff to manually control the sliding of the limit strip, thereby further improving the convenience of using the hanging formwork of the high-altitude cantilever steel truss floor deck.

[0017] Optionally, the suspension device also includes a plurality of locking components, the locking components corresponding to the limit I-beams one by one, the locking component including a locking rod and a locking plate, the surface of the limit I-beam is provided with a locking cavity for the locking rod to slide, the sliding direction of the locking rod and the length direction of the steel column are parallel to each other, the locking cavity passes through the surface of the limit I-beam in a direction close to the suspension I-beam, the surface of the suspension I-beam toward the limit I-beam is provided with a locking groove for the end of the locking rod to be embedded, the surface of the suspension I-beam is provided with a sliding cavity for the locking plate to slide, the sliding direction of the locking plate and the sliding direction of the locking rod are perpendicular to each other, the sliding cavity is connected to the locking groove, and the surface of the locking rod toward the sliding cavity is provided with an embedding groove for the end of the locking plate to be embedded. When the end of the locking rod is embedded in the locking groove, the embedding groove is connected to the sliding cavity, the locking plate slides along the inner wall of the sliding cavity in a direction close to the embedding groove, the end of the locking plate is embedded in the embedding groove, and the plate surface of the locking plate is pressed against the inner wall of the embedding groove to form a limit.

[0018] By adopting the above technical scheme, when a plurality of limiting I-beams are placed at intervals on the surface of the hanging I-beam facing the supporting I-beam, the locking cavity corresponds to the locking groove one by one, the end of the locking rod passes through the locking cavity and is embedded in the locking groove, the outer wall of the locking rod is pressed against the inner wall of the locking groove to form a limit, and at the same time the sliding cavity is connected to the embedded groove, driving the locking plate to slide along the inner wall of the sliding cavity toward the embedded groove, the end of the locking plate is embedded in the embedded groove, and the locking plate surface is pressed against the inner wall of the embedded groove to form a limit, so that the locking rod is not easy to deviate on the inner wall of the locking cavity, thereby improving the limiting stability of the locking rod in the locking cavity.

[0019] Optionally, the locking assembly also includes an elastic member five, one end of the elastic member five in the elastic force direction is connected to the locking plate surface, and the other end of the elastic member five in the elastic force direction is connected to the inner wall of the sliding cavity. The elastic member five has an elastic force that drives the locking plate to slide toward the direction close to the embedding groove, and the end of the locking plate tends to be embedded in the embedding groove.

[0020] By adopting the above technical solution, when the end of the locking rod passes through the locking cavity and is embedded in the locking groove, the sliding cavity is connected to the embedding groove, and the elastic force of the elastic member drives the locking plate to slide along the inner wall of the sliding cavity toward the embedding groove. The end of the locking plate is embedded in the embedding groove, and the outer wall of the locking plate is pressed against the inner wall of the embedding groove to form a limit, so that the end of the locking plate is not easy to separate from the embedding groove, thereby improving the limit stability of the locking rod in the locking cavity.

[0021] Optionally, the fixing assembly includes a square steel tube diagonal brace, an iron wire and a lifting ring, wherein one end of the square steel tube diagonal brace is connected to one end of the supporting I-beam in the width direction, and the other end of the square steel tube diagonal brace is connected to one end of the hanging I-beam in the length direction, and the lifting ring is connected to the end surface of the hanging I-beam away from the square steel tube diagonal brace, one end of the iron wire is connected to the surface of the supporting I-beam away from the square steel tube diagonal brace, and the other end of the iron wire is connected to the lifting ring.

[0022] By adopting the above technical solution, one end of the square steel pipe brace and one end of the iron wire are correspondingly connected to the two ends in the length direction of the suspended I-beam, and the other end of the square steel pipe brace and the other end of the iron wire are correspondingly connected to the two ends in the width direction of the supporting I-beam, so as to form a stable triangular structure among the four, and they bear force together, thereby ensuring the safety of the structure.

[0023] In the second aspect, a construction method for the suspended formwork of the high-altitude cantilevered steel bar truss floor slab provided by the present application adopts the following technical solution: The construction method for the suspended formwork of the high-altitude cantilevered steel bar truss floor slab is used for processing the suspended formwork of the high-altitude cantilevered steel bar truss floor slab, and includes the following steps: Installation of the supporting I-beam, and the supporting I-beam is fixed on the surface of the section steel column by welding to form a fixation; Installation of the suspended I-beam, and a plurality of suspended I-beams are sequentially and spacedly fixed on the surface of the supporting I-beam through the fixing assembly; Installation of the limiting I-beam, and a plurality of limiting I-beams are sequentially and spacedly fixed on the surface of the suspended I-beam; Installation of the suspension assembly, and a plurality of suspension assemblies are spacedly fixed on the surface of the limiting I-beam; Suspension of the suspended steel bar truss floor slab, and the suspension assembly binds and hoists the lower chord steel bars on both sides of the suspended steel bar truss floor slab to form a support.

[0024] By adopting the above technical solution, the suspended I-beam provides support for the limiting I-beam; at the same time, a plurality of suspension assemblies are spacedly connected to the surface of the limiting I-beam facing the supporting I-beam, and the suspension assembly can bind and hoist the lower chord steel bars on both sides of the suspended steel bar truss floor slab to form a support. Welding the supporting I-beam on the section steel column provides a construction platform for the suspended I-beam, which not only does not affect the construction of the non-suspended steel bar truss floor slab, but also provides a hanging support for the construction of the suspended section of the steel bar truss floor slab, improves the construction efficiency of the suspended steel bar truss floor slab, shortens the construction period of the suspended steel bar truss floor slab, and thus reduces the construction cost of the suspended steel bar truss floor slab.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. The setting of the suspension assembly not only does not affect the construction of the non-suspended steel bar truss floor slab, but also provides a hanging support for the construction of the suspended section of the steel bar truss floor slab, improves the construction efficiency of the suspended steel bar truss floor slab, shortens the construction period of the suspended steel bar truss floor slab, and thus reduces the construction cost of the suspended steel bar truss floor slab; 2. The setting of the rotating rod, the first elastic member, the steel wire rope and the fixing block realizes the positioning of the suspended steel bar truss floor slab, so that the suspended steel bar truss floor slab is not easy to shift on the force-applying I-beam, thereby improving the positioning stability of the suspended steel bar truss floor slab on the force-applying I-beam; 3. The arrangement of the slider, the second elastic member, the ratchet wheel and the pawl keeps the steel wire rope between the rotating rod and the fixed block in a taut state all the time, thereby improving the positioning stability of the suspended steel bar truss floor formwork. Description of the Drawings

[0026] Figure 1 is the schematic diagram of the overall structure in the embodiment of the present application.

[0027] Figure 2 is the partial structural sectional view in the embodiment of the present application, mainly showing the locking assembly.

[0028] Figure 3 is Figure 1 the enlarged view of A in

[0029] Figure 4 the partial sectional view of the limit I-beam in the embodiment of the present application, mainly showing the suspension assembly.

[0030] Description of the reference numerals: 1, section steel column; 2, suspension device; 21, support I-beam; 22, force-applying I-beam; 23, fixed I-beam; 24, locking assembly; 241, locking rod; 2411, slot; 242, locking plate; 243, fifth elastic member; 25, fixing assembly; 251, square steel pipe diagonal brace; 252, iron wire; 253, lifting ring; 26, suspension I-beam; 261, locking groove; 262, sliding cavity; 27, limit I-beam; 271, locking cavity; 272, fixing groove; 273, sliding groove; 274, power flow channel; 275, limit cavity; 28, suspension assembly; 281, rotating rod; 282, first elastic member; 283, steel wire rope; 284, fixed block; 2841, limit groove; 285, slider; 286, second elastic member; 287, ratchet wheel; 288, pawl; 289, power piston; 2810, third elastic member; 2811, limit bar; 2812, fourth elastic member; 2813, magnetic block; 2814, electromagnet; 2815, contact switch; 3, suspended steel bar truss floor formwork. Detailed Description of the Invention

[0031] The following further describes the present application in detail Figures 1-4 with reference to the accompanying drawings.

[0032] The embodiment of the present application discloses a suspended formwork for a high-altitude cantilevered steel bar truss floor formwork. Refer to Figure 1, the suspended formwork for the high-altitude cantilevered steel bar truss floor slab includes steel columns 1 and a suspension device 2. The number of steel columns 1 can be one, two, or more. In the embodiment of the present application, the number of steel columns 1 is multiple. The bottoms of the multiple steel columns 1 are fixedly spaced on the ground to form a support. The suspension device 2 is installed between the multiple steel columns 1. The suspension device 2 can hook and suspend the steel bar truss floor slab 3 to form a support, which not only does not affect the construction of the non-suspended steel bar truss floor slab 3, but also provides a hanging support for the construction of the suspended section of the steel bar truss floor slab, improves the construction efficiency of the suspended steel bar truss floor slab 3, shortens the construction period of the suspended steel bar truss floor slab 3, and thus reduces the construction cost of the suspended steel bar truss floor slab 3.

[0033] Refer to Figure 1 , the suspension device 2 includes a support I-beam 21, a fixed I-beam 23, a force-applying I-beam 22, multiple locking components 24, multiple fixing components 25, multiple suspension I-beams 26, multiple limiting I-beams 27, and multiple suspension components 28. The end faces of the multiple steel columns 1 away from the ground are fixedly welded at intervals on the surface of the support I-beam 21. The length direction of the support I-beam 21 is parallel to the arrangement direction of the steel columns 1. The surfaces of the multiple steel columns 1 are fixedly welded at intervals on the surface of the fixed I-beam 23. The length direction of the fixed I-beam 23 is parallel to the length direction of the support I-beam 21. The fixed I-beam 23 is located on the side of the support I-beam 21 close to the ground. The multiple suspension I-beams 26 are fixedly welded at intervals on the surface of the fixed I-beam 23 facing the support I-beam 21. The arrangement direction of the suspension I-beams 26 is parallel to the length direction of the fixed I-beam 23. The length direction of the suspension I-beams 26 is perpendicular to the length direction of the support I-beam 21, and the length direction of the suspension I-beams 26 is perpendicular to the length direction of the steel columns 1.

[0034] Refer to Figure 1 , the fixing component 25 corresponds to the suspension I-beam 26 one by one and is connected between the suspension I-beam 26 and the support I-beam 21 to increase the fixing stability of the suspension I-beam 26 on the fixed I-beam 23; the fixing component 25 includes a square steel pipe brace 251, a wire 252, and a lifting ring 253. One end of the square steel pipe brace 251 is connected to one end of the support I-beam 21 in the width direction. The other end of the square steel pipe brace 251 is at one end of the suspension I-beam 26 in the length direction. The lifting ring 253 is fixedly welded to the end of the suspension I-beam 26 away from the square steel pipe brace 251 in the length direction. One end of the wire 252 is fixed to the end face of the support I-beam 21 away from the square steel pipe brace 251, and the other end of the wire 252 is fixed to the lifting ring 253. A stable triangular structure is formed among the suspension I-beam 26, the square steel pipe brace 251, the wire 252, and the support I-beam 21 to share the force together, thereby ensuring the safety of using the suspended formwork for the high-altitude cantilevered steel bar truss floor slab.

[0035] Refer to Figure 1 andFigure 2 , a plurality of limiting I-beams 27 are placed at intervals on the surface of the hanging I-beam 26 facing the supporting I-beam 21. The arrangement direction of the limiting I-beams 27 is parallel to the length direction of the hanging I-beam 26, and the length direction of the limiting I-beams 27 is parallel to the length direction of the supporting I-beam 21. The locking assemblies 24 correspond to the limiting I-beams 27 one by one and are connected between the limiting I-beams 27 and the hanging I-beam 26. The locking assemblies 24 can detachably connect the limiting I-beams 27 to the hanging I-beam 26. The locking assemblies 24 include locking rods 241, locking plates 242 and fifth elastic members 243. The fifth elastic members 243 can be compression springs or tension springs. In the embodiment of the present application, the fifth elastic members 243 are compression springs and have a certain deformation ability. A locking cavity 271 for the locking rod 241 to slide is formed on the surface of the limiting I-beam 27. The sliding direction of the locking rod 241 is parallel to the length direction of the profiled steel column 1. The locking cavity 271 penetrates the surface of the limiting I-beam 27 in the direction close to the hanging I-beam 26. A locking groove 261 for the end of the locking rod 241 to be inserted is formed on the surface of the hanging I-beam 26 facing the locking cavity 271. A sliding cavity 262 for the locking plate 242 to slide is formed on the surface of the hanging I-beam 26. The sliding direction of the locking plate 242 is parallel to the length direction of the limiting I-beam 27. The sliding cavity 262 communicates with the locking groove 261, and a slot 2411 for the end of the locking plate 242 to be inserted is formed on the surface of the locking rod 241 facing the sliding cavity 262.

[0036] Refer to Figure 1 and Figure 2 , one end of the fifth elastic member 243 in the direction of the elastic force is connected to the inner wall of the sliding cavity 262, and the other end of the fifth elastic member 243 in the direction of the elastic force is connected to the plate surface of the locking plate 242. The fifth elastic member 243 has an elastic force to drive the locking plate 242 to slide along the inner wall of the sliding cavity 262 in the direction close to the slot 2411, and there is a tendency for the end of the locking plate 242 to be inserted into the slot 2411.

[0037] Refer to Figure 1 and Figure 2, when the limit I-beam 27 is placed on the surface of the hanging I-beam 26, the locking grooves 261 and the locking cavities 271 correspond to each other and communicate one by one. The locking plate 242 is driven to slide along the inner wall of the sliding cavity 262 away from the locking groove 261 against the elastic force of the fifth elastic member 243. The plate surface of the locking plate 242 is flush with the inner wall of the locking groove 261. The end of the locking rod 241 is driven to pass through the locking cavity 271 and embed into the locking groove 261. The outer peripheral surface of the locking rod 241 abuts against the inner wall of the locking groove 261 to form a limit, so that the limit I-beam 27 is not easily displaced on the hanging I-beam 26, realizing the limit of the limit I-beam 27 on the hanging I-beam 26; at the same time, the locking plate 242 is released, and the elastic force of the fifth elastic member 243 drives the locking plate 242 to slide along the inner wall of the sliding cavity 262 towards the direction close to the embedding groove 2411. The end of the locking plate 242 is embedded into the embedding groove 2411, and the plate surface of the locking plate 242 abuts against the inner wall of the embedding groove 2411 to form a limit, so that the locking rod 241 is not easily displaced on the inner wall of the locking cavity 271, thereby improving the limit stability of the locking rod 241 on the limit I-beam 27.

[0038] Referring to Figure 1 and Figure 2 , the force-applying I-beam 22 is welded and fixed on the surface of the section steel column 1 close to the ground. The force-applying I-beam 22 is located on one side of the fixed I-beam 23 close to the ground. The length direction of the force-applying I-beam 22 and the length direction of the supporting I-beam 21 are parallel to each other. The end face of the force-applying I-beam 22 facing the fixed I-beam 23 is for placing the suspended steel bar truss floor formwork 3. A plurality of suspension assemblies 28 are connected to the surface of the limit I-beam 27 facing the supporting I-beam 21 at intervals. The arrangement direction of the suspension assemblies 28 and the length direction of the limit I-beam 27 are parallel to each other. The suspension assemblies 28 can bind and lift the lower chord steel bars on both sides of the suspended steel bar truss floor formwork 3 to form a support, so that the suspended steel bar truss floor formwork 3 is not easily displaced on the surface of the force-applying I-beam 22, thereby improving the construction efficiency of the suspended steel bar truss floor formwork 3.

[0039] Referring to Figure 3 and Figure 4, the suspension assembly 28 includes a rotating rod 281, a first elastic member 282, a steel wire rope 283, a fixing block 284, a slider 285, a second elastic member 286, a ratchet wheel 287, a pawl 288, a power piston 289, a third elastic member 2810, a limiting strip 2811, a fourth elastic member 2812, a magnetic block 2813, an electromagnet 2814 and a contact switch 2815. The end of the rotating rod 281 is rotatably connected to the surface of the limiting I-beam 27 facing the supporting I-beam 21. The axis of the rotating rod 281 is parallel to the length direction of the steel section column 1. One end of the steel wire rope 283 is wound around the outer peripheral surface of the rotating rod 281, and the other end of the steel wire rope 283 is fixed to the fixing block 284. A fixing groove 272 for the end of the fixing block 284 to be inserted is formed on the surface of the limiting I-beam 27 facing the supporting I-beam 21. The inner wall of the fixing groove 272 can abut against the outer peripheral surface of the fixing block 284 to form a limit. The first elastic member 282 can be a disc spring or a tension spring. In the embodiment of the present application, the first elastic member 282 is a disc spring and has a certain deformation ability. One end in the elastic force direction of the first elastic member 282 is connected to the surface of the rotating rod 281, and the other end in the elastic force direction of the first elastic member 282 is connected to the surface of the limiting I-beam 27. The first elastic member 282 has an elastic force to drive the rotating rod 281 to rotate. The steel wire rope 283 is wound around the outer peripheral surface of the rotating rod 281, and the steel wire rope 283 between the fixing block 284 and the rotating rod 281 tends to be in a taut state.

[0040] Referring to Figure 3 and Figure 4 , the ratchet wheel 287 is coaxially fixed to the outer peripheral surface of the rotating shaft. A sliding groove 273 for the slider 285 to slide is formed on the surface of the limiting I-beam 27. The sliding direction of the slider 285 is parallel to the length direction of the suspension I-beam 26. The pawl 288 is rotatably connected to the surface of the slider 285. The axis of the pawl 288 is parallel to the axis of the ratchet wheel 287. The second elastic member 286 can be a tension spring or a torsion spring. In the embodiment of the present application, the second elastic member 286 is a torsion spring and has a certain deformation ability. One end in the elastic force direction of the second elastic member 286 is connected to the surface of the slider 285, and the other end in the elastic force direction of the second elastic member 286 is connected to the rotating shaft of the pawl 288. The second elastic member 286 has an elastic force to drive the pawl 288 to rotate towards the ratchet wheel 287, and the end of the pawl 288 tends to be engaged with the tooth ring of the ratchet wheel 287.

[0041] Referring to Figure 3 and Figure 4, the material of the power piston 289 can be rubber or silica gel. In the embodiment of the present application, the material of the power piston 289 is rubber, which has a certain deformation ability. The end of the power piston 289 is connected to the surface of the slider 285 facing the fixed groove 272. A power flow channel 274 for the power piston 289 to slide is provided on the inner wall of the chute 273, and the power flow channel 274 communicates with the fixed groove 272. The third elastic member 2810 can be a compression spring or a tension spring. In the embodiment of the present application, the third elastic member 2810 is a compression spring, which has a certain deformation ability. One end in the direction of the elastic force of the third elastic member 2810 is connected to the inner wall of the power flow channel 274, and the other end in the direction of the elastic force of the third elastic member 2810 is connected to the surface of the power piston 289. The third elastic member 2810 has an elastic force to drive the power piston 289 to slide away from the chute 273, and the tendency for the end of the pawl 288 to disengage from the tooth ring of the ratchet 287.

[0042] Refer to Figure 3 and Figure 4 , a limiting cavity 275 for the limiting strip 2811 to slide is provided on the inner wall of the fixed groove 272. A limiting groove 2841 for the end of the limiting strip 2811 to be embedded is provided on the surface of the fixed block 284 facing the limiting cavity 275. The fourth elastic member 2812 can be a compression spring or a tension spring. In the embodiment of the present application, the fourth elastic member 2812 is a compression spring, which has a certain deformation ability. One end in the direction of the elastic force of the fourth elastic member 2812 is connected to the surface of the limiting strip 2811, and the other end in the direction of the elastic force of the fourth elastic member 2812 is connected to the inner wall of the limiting cavity 275. The fourth elastic member 2812 has an elastic force to drive the limiting strip 2811 to slide away from the fixed groove 272, and the tendency for the surface of the limiting strip 2811 to be flush with the inner wall of the fixed groove 272.

[0043] Refer to Figure 3 and Figure 4 , the electromagnet 2814 is connected to the inner wall of the limiting cavity 275 away from the fixed groove 272, the magnetic block 2813 is connected to the surface of the limiting strip 2811 facing the electromagnet 2814, the contact switch 2815 is connected to the inner wall of the chute 273 close to the ratchet 287, the contact switch 2815 is electrically connected to the electromagnet 2814, and the magnetic force of the electromagnet 2814 is greater than the elastic force of the fourth elastic member 2812.

[0044] Refer to Figure 3 and Figure 4When the end of the wire rope 283 with the fixed block 284 passes through the lower chord steel bars on both sides of the steel bar truss floor slab and the fixed block 284 is driven into the fixed groove 272, the outer peripheral surface of the fixed block 284 abuts against the inner wall of the fixed groove 272 to form a limit. The first elastic member 282 drives the rotating rod 281 to rotate, and the wire rope 283 connecting the rotating rod 281 and the fixed block 284 is in a taut state. At the same time, the air in the fixed groove 272 enters the power flow channel 274 and impacts the surface of the power piston 289, pushing the slider 285 to slide along the inner wall of the chute 273 towards the ratchet 287. The second elastic member 286 drives the pawl 288 to rotate towards the ratchet 287, and the end of the pawl 288 is embedded in the tooth ring of the ratchet 287 to form an engagement, and limits the rotation of the rotating rod 281, so as to ensure that the wire rope 283 between the fixed block 284 and the rotating rod 281 is in a taut state, and the contact switch 2815 abuts against the slider 285 and is turned on, and the electromagnet 2814 is energized and has a magnetic force. The electromagnet 2814 and the magnetic block 2813 repel each other with the same pole and push the limiting strip 2811 to slide along the inner wall of the limiting cavity 275 towards the limiting groove 2841. The end of the limiting strip 2811 is embedded in the limiting groove 2841, and the outer peripheral surface of the limiting strip 2811 abuts against the inner wall of the limiting groove 2841 to form a limit, thereby improving the limiting stability of the fixed block 284 in the fixed groove 272.

[0045] The implementation principle of the suspended formwork for the high-altitude cantilevered steel bar truss floor slab in the embodiments of this application is as follows: The suspended steel bar truss floor slab 3 is placed on the surface of the force-applying I-beam 22 facing the suspension I-beam 26. The force-applying I-beam 22 provides support for the suspended steel bar truss floor slab 3. The end of the steel wire rope 283 with the fixing block 284 passes through the lower chord steel bars on both sides of the steel bar truss floor slab and drives the fixing block 284 to be embedded in the fixing groove 272. The outer peripheral surface of the fixing block 284 abuts against the inner wall of the fixing groove 272 to form a limit. The first elastic member 282 drives the rotating rod 281 to rotate, and the steel wire rope 283 connecting the rotating rod 281 and the fixing block 284 is in a taut state. At the same time, the air in the fixing groove 272 enters the power flow channel 274 and impacts the surface of the power piston 289, pushing the slider 285 to slide along the inner wall of the sliding groove 273 towards the direction close to the ratchet wheel 287. The second elastic member 286 drives the pawl 288 to rotate towards the direction close to the ratchet wheel 287. The end of the pawl 288 is embedded in the tooth ring of the ratchet wheel 287 to form an engagement, and limits the rotation of the rotating rod 281, so as to ensure that the steel wire rope 283 between the fixing block 284 and the rotating rod 281 is in a taut state, and the contact switch 2815 abuts against the slider 285 and is turned on. The electromagnet 2814 is energized and has a magnetic force. The electromagnet 2814 and the magnetic block 2813 repel each other with the same pole and push the limiting strip 2811 to slide along the inner wall of the limiting cavity 275 towards the direction close to the limiting groove 2841. The end of the limiting strip 2811 is embedded in the limiting groove 2841. The outer peripheral surface of the limiting strip 2811 abuts against the inner wall of the limiting groove 2841 to form a limit, so as to improve the limiting stability of the fixing block 284 in the fixing groove 272; realizing multiple positioning and fixing of the suspended steel bar truss floor slab 3, making the suspended steel bar truss floor slab 3 not prone to displacement on the force-applying I-beam 22, thereby improving the limiting stability of the suspended steel bar truss floor slab 3 on the force-applying I-beam 22. The supporting I-beam 21 is welded on the steel section column 1 to provide a construction platform for the suspension I-beam 26, which neither affects the construction of the non-suspended steel bar truss floor slab 3 nor provides a hanging support for the construction of the suspended section steel bar truss floor slab, improves the construction efficiency of the suspended steel bar truss floor slab 3, shortens the construction period of the suspended steel bar truss floor slab 3, and thus reduces the construction cost of the suspended steel bar truss floor slab 3.

[0046] The embodiments of this application also disclose a construction method for the suspended formwork of the high-altitude cantilevered steel bar truss floor slab, which is used for processing the suspended formwork of the high-altitude cantilevered steel bar truss floor slab, and includes the following steps: Installation of the supporting I-beam 21. The supporting I-beam 21 is fixed on the surface of the steel section column 1 by welding to form a fixation. Installation of the suspension I-beam 26. A plurality of suspension I-beams 26 are sequentially and fixedly spaced on the surface of the supporting I-beam 21 through the fixing assembly 25. Installation of the limiting I-beam 27. A plurality of limiting I-beams 27 are sequentially and fixedly spaced on the surface of the suspension I-beam 26. The suspension assemblies 28 are installed, and multiple suspension assemblies 28 are fixedly spaced on the surface of the limit I-beam 27; The suspended steel bar truss floor formwork 3 is hung, and the suspension assemblies 28 are tied to suspend the lower chord steel bars on both sides of the suspended steel bar truss floor formwork 3 to form a support.

[0047] The implementation principle of the construction method of the suspended steel bar truss floor formwork for high-altitude cantilever in the embodiment of the present application is as follows: the suspension I-beam 26 provides support for the limit I-beam 27; at the same time, multiple suspension assemblies 28 are spaced and connected to the surface of the limit I-beam 27 facing the support I-beam 21, and the suspension assemblies 28 can tie and suspend the lower chord steel bars on both sides of the suspended steel bar truss floor formwork 3 to form a support. The support I-beam 21 is welded on the steel column 1 to provide a construction platform for the suspension I-beam 26, which not only does not affect the construction of the non-suspended steel bar truss floor formwork 3, but also provides a hanging support for the construction of the suspended section of the steel bar truss floor formwork, improves the construction efficiency of the suspended steel bar truss floor formwork 3, shortens the construction period of the suspended steel bar truss floor formwork 3, and thus reduces the construction cost of the suspended steel bar truss floor formwork 3.

[0048] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. The suspended formwork of the high-altitude cantilevered steel bar truss floor slab is characterized in that: It includes a profiled steel column (1) and a suspension device (2). The bottom of the profiled steel column (1) can be fixed on the ground. The suspension device (2) includes a supporting I-beam (21), a plurality of fixing components (25), a plurality of hanging I-beams (26), a plurality of limiting I-beams (27) and a plurality of hanging components (28). The supporting I-beam (21) is connected to the surface of the profiled steel column (1). The length direction of the supporting I-beam (21) is perpendicular to the length direction of the profiled steel column (1). The fixing components (25) are in one-to-one correspondence with the hanging I-beams (26) and are connected. A plurality of the hanging I-beams (26) are spaced and connected to the surface of the supporting I-beam (21) through the fixing components (25). The arrangement direction of the hanging I-beams (26) is parallel to the length direction of the supporting I-beam (21). The length direction of the hanging I-beams (26) is perpendicular to the length direction of the supporting I-beam (21), and the length direction of the hanging I-beams (26) is perpendicular to the length direction of the profiled steel column (1). A plurality of the limiting I-beams (27) are spaced and connected to the surface of the hanging I-beams (26) facing the supporting I-beam (21). The arrangement direction of the limiting I-beams (27) is parallel to the length direction of the hanging I-beams (26), and the length direction of the limiting I-beams (27) is parallel to the length direction of the supporting I-beam (21). A plurality of the hanging components (28) are spaced and connected to the surface of the limiting I-beams (27) facing the supporting I-beam (21). The hanging components (28) can tie and suspend the lower chord steel bars on both sides of the suspended steel bar truss floor slab (3) to form a support.

2. The suspended formwork of the high-altitude cantilevered steel bar truss floor slab according to claim 1, characterized in that: The suspension device (2) further includes a force - applying I - beam (22). The force - applying I - beam (22) is connected to the surface of the section steel column (1). The force - applying I - beam (22) is located on the side of the suspension I - beam (26) away from the limit I - beam (27). The length direction of the force - applying I - beam (22) is parallel to the length direction of the support I - beam (21). And the surface of the force - applying I - beam (22) facing the suspension I - beam (26) is for placing the suspended steel bar truss floor slab (3). The suspension assembly (28) includes a rotating rod (281), a first elastic member (282), a steel wire rope (283) and a fixing block (284). The rotating rod (281) is rotatably connected to the surface of the limit I - beam (27). The axis of the rotating rod (281) is parallel to the length direction of the section steel column (1). One end of the steel wire rope (283) is wound around the outer peripheral surface of the rotating rod (281), and the other end of the steel wire rope (283) is fixed to the fixing block (284). A fixing groove (272) for the end of the fixing block (284) to be inserted is formed on the surface of the limit I - beam (27). One end of the first elastic member (282) in the direction of its elastic force is connected to the surface of the rotating shaft of the rotating rod (281), and the other end of the first elastic member (282) in the direction of its elastic force is connected to the surface of the limit I - beam (27). The first elastic member (282) has an elastic force to drive the rotating rod (281) to rotate and a tendency for the steel wire rope (283) to be wound around the outer peripheral surface of the rotating rod (281). When the end of the steel wire rope (283) with the fixing block (284) passes through the lower chord steel bars on both sides of the suspended steel bar truss floor slab (3) and drives the end of the fixing block (284) to be inserted into the fixing groove (272), the outer peripheral surface of the fixing block (284) abuts against the inner wall of the fixing groove (272) to form a limit. The first elastic member (282) drives the rotating rod (281) to rotate, and the steel wire rope (283) connected between the rotating rod (281) and the fixing block (284) is in a tensioned state.

3. The suspended formwork of the high-altitude cantilevered steel bar truss floor slab according to claim 2, wherein: The suspension assembly (28) further includes a slider (285), a second elastic member (286), a ratchet wheel (287), and a pawl (288). The ratchet wheel (287) is coaxially connected to the rotating rod (281). A sliding groove (273) for the slider (285) to slide is formed on the surface of the limiting I-beam (27). The pawl (288) is rotatably connected to the surface of the slider (285). The axis of the pawl (288) and the axis of the rotating rod (281) are parallel to each other. One end of the second elastic member (286) in the direction of its elastic force is connected to the rotating shaft of the pawl (288), and the other end of the second elastic member (286) in the direction of its elastic force is connected to the surface of the slider (285). The second elastic member (286) has an elastic force to drive the pawl (288) to rotate towards the ratchet wheel (287). The end of the pawl (288) is embedded in the tooth ring of the ratchet wheel (287) to form an engagement and limit the rotation of the rotating rod (281), and the steel wire rope (283) between the fixed block (284) and the rotating rod (281) is in a tendency of being in a taut state; when the slider (285) slides along the inner wall of the sliding groove (273) away from the ratchet wheel (287), the end of the pawl (288) disengages from the tooth ring of the ratchet wheel (287), and the limiting effect of the pawl (288) on the rotating rod (281) disappears.

4. The suspended formwork of the high-altitude cantilevered steel bar truss floor slab according to claim 3, wherein: The suspension assembly (28) further includes a power piston (289) and a third elastic member (2810). The end of the power piston (289) is connected to the surface of the slider (285) away from the ratchet wheel (287). A power flow channel (274) for the power piston (289) to slide is formed on the inner wall of the sliding groove (273). The power flow channel (274) communicates with the fixed groove (272). One end of the third elastic member (2810) in the direction of its elastic force is connected to the inner wall of the power flow channel (274), and the other end of the third elastic member (2810) in the direction of its elastic force is connected to the surface of the power piston (289). The third elastic member (2810) has an elastic force to drive the power piston (289) to slide towards the power flow channel (274), and a tendency for the end of the pawl (288) to disengage from the tooth ring of the ratchet wheel (287).

5. The suspended formwork of the high-altitude cantilevered steel bar truss floor slab according to claim 4, wherein: The suspension assembly (28) further includes a limiting strip (2811). A limiting cavity (275) for the limiting strip (2811) to slide is formed on the inner wall of the fixed groove (272). A limiting groove (2841) for the end of the limiting strip (2811) to be embedded is formed on the surface of the fixed block (284). When the end of the fixed block (284) is embedded in the fixed groove (272), the limiting groove (2841) communicates with the limiting cavity (275), driving the limiting strip (2811) to slide towards the limiting groove (2841) and be embedded, and the outer wall of the limiting strip (2811) abuts against the inner wall of the limiting groove (2841) to form a limit.

6. The suspended formwork of the high-altitude cantilevered steel bar truss floor slab according to claim 5, characterized in that: The suspension assembly (28) further includes a fourth elastic member (2812), a magnetic block (2813), an electromagnet (2814), and a contact switch (2815). One end of the fourth elastic member (2812) in the direction of its elastic force is connected to the inner wall of the limiting cavity (275), and the other end of the fourth elastic member (2812) in the direction of its elastic force is connected to the surface of the limiting strip (2811). The fourth elastic member (2812) has an elastic force to drive the limiting strip (2811) to slide in a direction away from the limiting groove (2841), and there is a tendency for the surface of the limiting strip (2811) to be flush with the inner wall of the fixing groove (272). The electromagnet (2814) is connected to the inner wall of the limiting cavity (275) away from the fixing groove (272), the magnetic block (2813) is connected to the surface of the limiting strip (2811) facing the electromagnet (2814), the contact switch (2815) is connected to the inner wall of the sliding groove (273) close to the ratchet wheel (287), the contact switch (2815) is electrically connected to the electromagnet (2814), and the magnetic force of the electromagnet (2814) is greater than the elastic force of the fourth elastic member (2812). When the slider (285) slides along the inner wall of the sliding groove (273) in a direction close to the ratchet wheel (287), the contact switch (2815) abuts against the surface of the slider (285) and is turned on, the electromagnet (2814) is powered on and has a magnetic force. The electromagnet (2814) and the magnetic block (2813) repel each other with the same pole and drive the limiting strip (2811) to slide in a direction close to the limiting groove (2841), and the end of the limiting strip (2811) is embedded in the limiting groove (2841) to form a limit.

7. The suspended formwork of the high-altitude cantilevered steel bar truss floor slab according to claim 1, characterized in that: The suspension device (2) further includes a plurality of locking components (24), and the locking components (24) correspond to the limit I-beams (27) one by one. The locking component (24) includes a locking rod (241) and a locking plate (242). A locking cavity (271) for the locking rod (241) to slide is formed on the surface of the limit I-beam (27). The sliding direction of the locking rod (241) is parallel to the length direction of the steel column (1). The locking cavity (271) penetrates the surface of the limit I-beam (27) towards the direction close to the suspension I-beam (26). A locking groove (261) for the end of the locking rod (241) to be embedded is formed on the surface of the suspension I-beam (26) facing the limit I-beam (27). A sliding cavity (262) for the locking plate (242) to slide is formed on the surface of the suspension I-beam (26). The sliding direction of the locking plate (242) is perpendicular to the sliding direction of the locking rod (241). The sliding cavity (262) communicates with the locking groove (261). A slot (2411) for the end of the locking plate (242) to be embedded is formed on the surface of the locking rod (241) facing the sliding cavity (262). When the end of the locking rod (241) is embedded in the locking groove (261), the slot (2411) communicates with the sliding cavity (262). The locking plate (242) slides along the inner wall of the sliding cavity (262) towards the direction close to the slot (2411), and the end of the locking plate (242) is embedded in the slot (2411). The plate surface of the locking plate (242) abuts against the inner wall of the slot (2411) to form a limit.

8. The suspended formwork of the high-altitude cantilevered steel bar truss floor slab according to claim 7, characterized in that: The locking component (24) further includes a fifth elastic member (243). One end of the fifth elastic member (243) in the direction of the elastic force is connected to the plate surface of the locking plate (242), and the other end of the fifth elastic member (243) in the direction of the elastic force is connected to the inner wall of the sliding cavity (262). The fifth elastic member (243) has an elastic force to drive the locking plate (242) to slide towards the direction close to the slot (2411), and there is a tendency for the end of the locking plate (242) to be embedded in the slot (2411).

9. The suspended formwork of the high-altitude cantilevered steel bar truss floor slab according to claim 1, wherein: The fixing component (25) includes a square steel pipe brace (251), a wire (252) and a lifting ring (253). One end of the square steel pipe brace (251) is connected to one end in the width direction of the supporting I-beam (21), and the other end of the square steel pipe brace (251) is connected to one end in the length direction of the suspension I-beam (26). The lifting ring (253) is connected to the end face of the suspension I-beam (26) far from the square steel pipe brace (251). One end of the wire (252) is connected to the surface of the supporting I-beam (21) facing away from the square steel pipe brace (251), and the other end of the wire (252) is connected to the lifting ring (253).

10. Construction method for suspended formwork of high-altitude cantilevered steel bar truss floor slab, characterized in that: The processing of the suspended formwork of the high-altitude cantilevered steel bar truss floor slab according to any one of claims 1-9 includes the following steps: Installation of the supporting I-beam (21). The supporting I-beam (21) is fixed on the surface of the steel column (1) by welding to form a fixation. Installation of the hanging I-beams (26), multiple hanging I-beams (26) are successively and fixedly spaced on the surface of the supporting I-beam (21) through the fixing components (25); Installation of the limiting I-beams (27), multiple limiting I-beams (27) are successively and fixedly spaced on the surface of the hanging I-beams (26); Installation of the hanging components (28), multiple hanging components (28) are fixedly spaced on the surface of the limiting I-beams (27); Hanging of the suspended steel bar truss floor slab (3), the hanging components (28) are tied to lift the lower chord steel bars on both sides of the suspended steel bar truss floor slab (3) to form a support.

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