An assembly formwork reinforcement and support system for high-altitude independent beams and its construction method

Abstract

The present invention discloses an assembly type formwork reinforcement and support system for high-altitude independent beams and its construction method, which includes independent beams. Four groups of U-shaped steel bars are preset in the independent beams, and two groups of I-beams are installed at the top of the independent beams. The four groups of U-shaped steel bars are respectively installed on both sides of the two groups of I-beams. Connecting holes are provided on the I-beams, and the connecting holes are adapted to the U-shaped steel bars. Fixed nuts are threadedly connected to the U-shaped steel bars. An adjustable positioning rod is installed at the top of the I-beam, and the top of the positioning rod is connected to a formwork support. A top support is fixedly connected to the top of the formwork support, and another independent beam is arranged at the top of the top support. Side forms are installed on both sides of the independent beam. This assembly type formwork reinforcement and support system for high-altitude independent beams and its construction method solve the problem in the prior art that holes need to be drilled in the independent beams to fix the inclined struts, which affects the structure of the independent beams, by setting reinforcement members and presetting U-shaped steel bars on the independent beams.

Description

Technical Field

[0001] The present invention relates to the technical field of independent beam assembled formwork reinforcement, and specifically to an aerial independent beam assembled formwork reinforcement and support system and its construction method. Background Technique

[0002] In recent years, the pace of urbanization construction in China has accelerated, and high-rise and super high-rise buildings have been increasing continuously. In order to meet the requirements of beautiful building facade shape or structural safety, etc., independent beams are often designed on the facade.

[0003] Currently, for the aerial independent beam formwork support system, if the traditional floor scaffold is adopted, a large amount of materials need to be invested due to the large number of building floors. At the same time, the large building height will lead to poor safety of the formwork support. And according to a kind of aerial large-span inter-story independent beam formwork support system and its construction method disclosed in Patent No. 202111617426.8, the way to support and reinforce the formwork is as follows: inclined braces are adopted, and the lower end of the inclined brace is fixedly connected with the independent beam through expansion bolts. The expansion bolts need to drill holes on the side of the beam, so to a certain extent, the beam structure is damaged and the construction is inconvenient. For this reason, we propose an aerial independent beam assembled formwork reinforcement and support system and its construction method. Summary of the Invention

[0004] The purpose of the present invention is to provide an aerial independent beam assembled formwork reinforcement and support system and its construction method to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An aerial independent beam assembled formwork reinforcement and support system, including an independent beam. Four groups of U-shaped steel bars are preset in the independent beam, and two groups of I-beams are installed at the top of the independent beam. The four groups of U-shaped steel bars are respectively installed on both sides of the two groups of I-beams. Connection holes are opened on the I-beams, and the connection holes are adapted to the U-shaped steel bars. And fixing nuts are threadedly connected to the U-shaped steel bars. And an adjustable positioning rod is installed at the top of the I-beam. The top of the positioning rod is connected with a formwork support. The top of the formwork support is fixedly connected with a jack. Another group of the independent beam is arranged at the top of the jack. Side forms are installed on both sides of the independent beam. A bottom form in contact with the independent beam is installed at the bottom of the side form. Reinforcement members are installed on the outer sides of the side form and the bottom form. And extension members are connected to both ends of the I-beam.

[0006] Preferably, the reinforcement member includes two sets of first racks, the two sets of first racks are respectively installed on the outer sides of the two sets of side molds, and a first driving member is meshed and connected to the first rack. A second rack is connected to the first driving member. The bottom ends of the two sets of second racks are fixedly connected with third racks. A second driving member is connected between the two sets of third racks. One ends of the first rack, the second rack and the third rack are all provided with first bumps, and pressing members are installed at the tops of the two sets of first racks. Second bumps are arranged at the ends of the two sets of third racks.

[0007] Preferably, the pressing member includes a fixed shaft fixedly connected to the first rack. A pressing piece in contact with the side mold is rotatably connected to the fixed shaft. An upper pressing piece rotatably connected to the fixed shaft is installed at the top end of the pressing piece. The upper pressing piece is in contact with the I-beam.

[0008] Preferably, the first driving member and the second driving member both include outer sheaths. The three outer sheaths are respectively installed on the outer sides of the first rack, the second rack and the third rack and are slidably connected thereto. A rotating shaft is rotatably connected to the outer sheath. One end of the rotating shaft is fixedly connected with an adjusting knob, and the other end of the rotating shaft is fixedly connected with a spur gear. The two spur gears are respectively installed on one side of the two sets of side molds and are meshed and connected to the first rack and the second rack respectively. The remaining set of spur gear is located at the bottom end of the bottom mold and is meshed and connected to the two sets of third racks.

[0009] Preferably, an electric hoist is also slidably connected to one end of the I-beam. A limit pin is fixedly connected to the I-beam on one side of the electric hoist. A steel wire rope is connected to the electric hoist. The bottom end of the steel wire rope is connected with a hook. A hanging basket is connected to the hook.

[0010] Preferably, the extension member includes double-channel steel extension pieces movably installed at both ends of the I-beam. Fixing holes are formed in both the I-beam and the double-channel steel extension pieces. Fixing bolts are connected in the fixing holes. The double-channel steel extension pieces are fixedly connected to the I-beam through the fixing bolts.

[0011] Preferably, a horizontal bubble is arranged on one side of the third rack.

[0012] A construction method for an aerial independent beam assembled formwork reinforcement and support system includes the following steps:

[0013] S1: After the formwork support of the lower-layer independent beam is completed, erect the formwork of the independent beam. Reinforce the bottom formwork and side formwork of the beam by rotating the knob of the adjustable beam formwork reinforcement. First, rotate the pressing plate steel plate at the upper opening of the formwork reinforcement, buckle it on the upper edge of the side formwork of the beam, and then tighten the two side knobs of the beam for vertical reinforcement. Observe the horizontal bubble on the bottom formwork reinforcement of the beam. Ensure it is horizontal, and finally rotate the bottom knob of the beam for transverse reinforcement;

[0014] S2: Bind the steel bars of the independent beam and embed the U-shaped steel bars for fixing the steel platform. Two U-shaped steel bars need to be embedded for one I-beam, and 4 holes are pre-drilled on the lower flange of the I-beam;

[0015] S3: Pour the concrete of the independent beam. At the same time, according to the number of vertical poles of the formwork support, pre-sleeve several adjustable vertical pole positioning rods onto the I-beam of the steel platform, and tighten the bolts to fix the adjustable vertical pole positioning rods according to the vertical pole spacing;

[0016] S4: After the concrete reaches final setting, the I-beam of the steel platform can be hoisted by the tower crane (usually standard parts can be used. If the formwork support erection height is large, two extension parts can be connected to both sides of the standard parts by bolts to lengthen the platform and meet the requirements of the formwork support height-width ratio). Align the pre-drilled holes of the I-beam of the steel platform with the embedded U-shaped steel bars and pass through them, and tighten and fix them with nuts. Rotate the upper pressing plate steel plate at the upper opening of the beam formwork reinforcement and buckle it on the lower flange of the I-beam of the steel platform;

[0017] S5: Remove the side vertical poles of the formwork support of the lower-layer independent beam. If the extension parts of the I-beam of the steel platform are used, they should also be removed, and keep the bottom vertical poles;

[0018] S6: Erect the formwork support of the upper-layer independent beam, and repeat steps ①-⑤;

[0019] S7: After the concrete strength of the independent beam reaches 100%, install an electric winch on the I-beam and hang a material stacking basket below. Open a hole at the end of the I-beam and put a limit pin in it. The construction workers can remotely control the rotation of the electric winch to adjust the height of the stacking basket. The construction workers put the removed materials into the basket, use the tower crane for hoisting and upward turnover. The demolition sequence is as follows: 1) Adjust the adjustable jack and remove the beam formwork reinforcement; 2) Remove the beam formwork; 3) Remove the formwork support; 4) Remove the I-beam platform.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The present invention is provided with reinforcement members and pre - embedded U - shaped steel bars on the independent beam. Therefore, after the formwork support of the lower - layer independent beam is completed, the independent beam formwork is erected. The beam bottom formwork and side formwork are reinforced by rotating the knob of the adjustable beam formwork reinforcement member. First, rotate the pressing piece on the upper mouth of the pressing member and buckle it on the upper edge of the beam side formwork. Then, tighten the two beam side knobs, which drives the rotation of two groups of rotating shafts, further drives the rotation of two groups of spur gears, and then drives the reverse movement of two groups of first racks and two groups of second racks, so as to vertically reinforce the formwork through the reverse movement of the first rack and the second rack. Observe the level bubble on the third rack at the bottom end of the beam bottom formwork to ensure it is level. Finally, rotate the beam bottom knob, which drives the rotation of the rotating shaft, further drives the rotation of the spur gear, and thus drives the reverse movement of two groups of third racks, so as to horizontally reinforce the formwork. The I - beam is fixed by pre - embedding U - shaped steel bars on the beam. At the same time, the assembled adjustable beam formwork reinforcement system forms an integral whole, without the need to punch holes on the beam side using expansion bolts, reducing the impact on the beam structure. Therefore, it solves the problem in the prior art that holes need to be drilled on the independent beam to fix the inclined strut, which affects the structure of the independent beam.

[0022] 2. It circumvents the deficiencies of traditional floor scaffolds, with obvious economic and safety benefits.

[0023] 3. The assembled adjustable beam formwork reinforcement system is adopted, without the need for tie rods, reducing the impact on the beam structure. And the standard components are applicable to rectangular beams of different sizes. The knob - adjustable design is convenient for installation and disassembly, and has strong applicability for turnover between projects.

[0024] 4. The assembled beam formwork reinforcement system and the steel platform on the beam are integrated to form an assembled beam formwork support system. This system can be installed and used without removing the beam side formwork after the beam concrete is poured. The construction period is short. At the same time, by rotating the upper pressing plate steel plate on the upper mouth of the formwork reinforcement member, the formwork reinforcement member can be buckled on the lower flange of the I - beam of the steel platform, forming an integral whole, with good anti - overturning performance and high safety.

[0025] 5. The length of the I - beam is adjustable. Usually, standard I - beams are used. When the erection height is large to meet the height - width ratio, extension I - beams can be installed at both ends of the standard I - beam to increase the erection width of the formwork support.

[0026] 6. The adjustable vertical rod positioning member is adopted. According to the required number of vertical rods to be erected, several adjustable vertical rod positioning members can be sleeved on the upper flange of the main I - beam of the steel platform. It can be adjusted left and right to adapt to different vertical rod spacings, and the number can be changed flexibly. And there is a vertical rod limit, with high safety.

[0027] 7. After the I-beam of the upper steel platform is erected, the side uprights of the beam of the next independent beam formwork and the I-beam extension of the steel platform can be removed to speed up the turnover of materials. At the same time, in order to meet the needs of removing the formwork of the bottom uprights of the beam of the next independent beam formwork, a small material stacking basket can be installed on the I-beam of the steel platform, and it has an electric winch device to control the height of the stacking basket. After the materials are removed, they are placed in the stacking basket, which can be lifted by a tower crane to realize flexible and convenient cleaning of high-altitude materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0030] Figure 3 For the present invention Figure 2 Schematic diagram of the structure of the middle A area;

[0031] Figure 4 This is a schematic diagram of the I-beam structure of the present invention;

[0032] Figure 5 This is a schematic diagram of the independent beam template reinforcement structure of the present invention;

[0033] Figure 6 It is a schematic diagram of the local structure of the reinforcement support system of the present invention;

[0034] Figure 7 For the present invention Figure 6 Schematic diagram of the structure of the middle B area;

[0035] Figure 8 It is a schematic diagram of the connection structure between the reinforcement member and the side mold and the bottom mold of the present invention;

[0036] Figure 9 This is a schematic diagram of the structure of the reinforcement member of the present invention;

[0037] Figure 10 For the present invention Figure 9 Schematic diagram of the structure of the middle C area;

[0038] Figure 11 This is a schematic diagram of the connection structure between the electric winch and the I-beam of the present invention;

[0039] Figure 12 For the present invention Figure 11 Schematic diagram of the structure of the middle D area;

[0040] Figure 13 This is a schematic diagram of the electric winch connected to the hanging basket structure of the present invention.

[0041] In the figure: 1 - independent beam; 2 - U-shaped steel bar; 3 - I-beam; 4 - connection hole; 5 - fixing nut; 6 - positioning rod; 7 - formwork support; 8 - jack; 9 - bottom formwork; 10 - side formwork; 11 - reinforcement member; 12 - extension member; 13 - first rack; 14 - first driving member; 15 - second rack; 16 - first convex block; 17 - pressing member; 18 - third rack; 19 - second convex block; 20 - fixed shaft; 21 - lower pressing piece; 22 - upper pressing piece; 23 - outer sheath; 24 - rotating shaft; 25 - knob; 26 - spur gear; 27 - electric hoist; 28 - limit pin; 29 - steel wire rope; 30 - hook; 31 - hanging basket; 32 - double-channel steel extension piece; 33 - fixing hole; 34 - fixing bolt; 35 - level bubble; 36 - second driving member. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] Please refer to Figure 1-13 , the present invention provides a technical solution: a high-altitude independent beam assembled formwork reinforcement and support system, including an independent beam 1, four groups of U-shaped steel bars 2 are preset in the independent beam 1, and two groups of I-beams 3 are installed at the top end of the independent beam 1. The four groups of U-shaped steel bars 2 are respectively installed on both sides of the two groups of I-beams 3. Connection holes 4 are opened on the I-beams 3, the connection holes 4 are adapted to the U-shaped steel bars 2, and fixing nuts 5 are threadedly connected to the U-shaped steel bars 2. An adjustable positioning rod 6 is installed at the top end of the I-beam 3, the top end of the positioning rod 6 is connected to a formwork support 7, the top end of the formwork support 7 is fixedly connected to a jack 8, another independent beam 1 is arranged at the top end of the jack 8, side formworks 10 are installed on both sides of the independent beam 1, a bottom formwork 9 in contact with the independent beam 1 is installed at the bottom end of the side formwork 10, reinforcement members 11 are installed on the outer sides of the side formwork 10 and the bottom formwork 9, and extension members 12 are connected to both ends of the I-beam 3;

[0044] Through the action of the extension member 12, it is convenient to adjust the length of the I-beam 3. The extension member 12 includes a double-channel steel extension piece 32 movably installed at both ends of the I-beam 3. Fixing holes 33 are opened on both the I-beam 3 and the double-channel steel extension piece 32, and fixing bolts 34 are connected in the fixing holes 33. The double-channel steel extension piece 32 is fixedly connected to the I-beam 3 through the fixing bolts 34.

[0045] When the bottom formwork 9 and the side formwork 10 support the concrete, the side formwork 10 and the bottom formwork 9 are reinforced by the action of the reinforcement member 11. The reinforcement member 11 includes two groups of first racks 13, and the two groups of first racks 13 are respectively installed on the outer sides of the two groups of side formworks 10. A first driving member 14 is meshed and connected to the first rack 13, a second rack 15 is connected to the first driving member 14, the bottoms of the two groups of second racks 15 are fixedly connected with third racks 18, a second driving member 36 is connected between the two groups of third racks 18, and a first convex block 16 is arranged at one end of each of the first rack 13, the second rack 15 and the third rack 18. Compressing members 17 are installed at the tops of the two groups of first racks 13, and a horizontal bubble 35 is arranged on one side of the third rack 18.

[0046] The compressing member 17 includes a fixed shaft 20 fixedly connected to the first rack 13. A pressing piece 21 in contact with the side formwork 10 is rotatably connected to the fixed shaft 20. An upper pressing piece 22 rotatably connected to the fixed shaft 20 is installed at the top of the pressing piece 21, and the upper pressing piece 22 is in contact with the I-beam 3.

[0047] The first driving member 14 and the second driving member 36 both include outer sheaths 23. The three groups of outer sheaths 23 are respectively installed on the outer sides of the first rack 13, the second rack 15 and the third rack 18 and are slidably connected thereto. A rotating shaft 24 is rotatably connected to the outer sheath 23. One end of the rotating shaft 24 is fixedly connected with an adjusting knob 25, and the other end of the rotating shaft 24 is fixedly connected with a spur gear 26. The two groups of spur gears 26 are respectively installed on one side of the two groups of side formworks 10 and are meshed and connected to the first rack 13 and the second rack 15 respectively. The remaining group of spur gears 26 is located at the bottom end of the bottom formwork 9 and is meshed and connected to the two groups of third racks 18.

[0048] An electric hoist 27 is also slidably connected to one end of the I-beam 3. A limit pin 28 is fixedly connected to the I-beam 3 on one side of the electric hoist 27. A steel wire rope 29 is connected to the electric hoist 27, a hanging hook 30 is connected to the bottom end of the steel wire rope 29, and a hanging basket 31 is connected to the hanging hook 30.

[0049] A construction method for a high-altitude independent beam assembled formwork reinforcement and support system includes the following steps:

[0050] S1: After the formwork support for the independent beam on the lower layer is completed, install the formwork for the independent beam. Reinforce the bottom formwork and side formwork of the beam by rotating the knob of the adjustable beam formwork reinforcement. First, rotate the pressing steel plate at the upper opening of the formwork reinforcement, buckle it on the upper edge of the side formwork of the beam, and then tighten the two side knobs of the beam for vertical reinforcement. Observe the horizontal bubble on the formwork reinforcement of the bottom formwork of the beam. Ensure it is horizontal, and finally rotate the bottom knob of the beam for transverse reinforcement;

[0051] S2: Tie the steel bars of the independent beam and embed the U-shaped steel bars for fixing the steel platform. Two U-shaped steel bars need to be embedded for one I-beam, and 4 holes are pre-drilled on the lower flange of the I-beam;

[0052] S3: Pour the concrete of the independent beam. At the same time, pre-sleeve several adjustable vertical rod positioning rods into the I-beam of the steel platform according to the number of vertical rods of the formwork support, and tighten the bolts to fix the adjustable vertical rod positioning rods according to the vertical rod spacing;

[0053] S4: After the concrete has finally set, the I-beam of the steel platform can be hoisted by the tower crane (usually standard parts can be used. If the formwork support is built at a high height, two extension parts can be bolted to both sides of the standard parts to lengthen the platform and meet the requirements of the height-width ratio of the formwork support). Align the pre-drilled holes of the I-beam of the steel platform with the embedded U-shaped steel bars and pass through them, and tighten and fix them with nuts. Rotate the upper pressing steel plate at the upper opening of the beam formwork reinforcement and buckle it on the lower flange of the I-beam of the steel platform;

[0054] S5: Remove the side vertical rods of the formwork support for the independent beam on the lower layer. If the extension parts of the I-beam of the steel platform are also used, remove them, and keep the bottom vertical rods;

[0055] S6: Build the formwork support for the independent beam on the upper layer, and repeat steps ① - ⑤;

[0056] S7: After the concrete strength of the independent beam reaches 100%, install an electric hoist on the I-beam and hang a material stacking basket below. Open a hole at the end of the I-beam and put a limit pin in it. Construction workers can remotely control the rotation of the electric hoist to adjust the height of the stacking basket. Construction workers put the removed materials into the basket, use the tower crane for hoisting and upward turnover. The demolition sequence is: 1) Adjust the adjustable jack and remove the beam formwork reinforcement; 2) Remove the beam formwork; 3) Remove the formwork support; 4) Remove the I-beam platform.

[0057] After the formwork support 7 for the independent beam 1 in the lower layer is completed, the formwork for the independent beam 1 is erected. The beam bottom formwork 9 and the side formwork 10 are reinforced by rotating the knob 25 of the adjustable beam formwork reinforcement member 11. First, rotate the pressing piece 21 at the upper opening of the pressing member 17 and buckle it on the upper edge of the beam side formwork 10. Then, by tightening the two beam side knobs 25, the two groups of rotating shafts 24 are driven to rotate, then the two groups of spur gears 26 are driven to rotate, then the two groups of first racks 13 and the two groups of second racks 15 are driven to move in opposite directions, so as to vertically reinforce the formwork through the opposite movement of the first rack 13 and the second rack 15. Observe the horizontal bubble 35 on the third rack 18 at the bottom end of the beam bottom formwork 9. When it is ensured to be horizontal, finally rotate the beam bottom knob 25, thus driving the rotating shaft 24 to rotate, then driving the spur gear 26 to rotate, thus driving the two groups of third racks 18 to move in opposite directions, so as to horizontally reinforce the formwork. Since limiting grooves are provided at the positions where the sides of the first rack 13, the second rack 15 and the third rack 18 contact the outer sheath 23, the outer sheath 23 is limited to prevent it from detaching from the first rack 13, the second rack 15 and the third rack 18. During this process, the first convex block 16 and the second convex block 19 function to limit the first rack 13, the second rack 15 and the third rack 18 to prevent them from falling off. After the reinforcement is completed, the steel bars of the independent beam 1 are tied, and the U-shaped steel bars 2 for fixing the I-beam 3 are embedded. Two U-shaped steel bars 2 need to be embedded for one I-beam 3, and 4 holes are pre-drilled in the lower flange of the I-beam 3. After the steel bars are tied, the concrete is poured into the formwork composed of the side formwork 10 and the bottom formwork 9 to pour the concrete of the independent beam 1. At the same time, according to the number of vertical rods of the formwork support 7, several adjustable vertical rod positioning rods 6 are sleeved on the I-beam 3 of the steel platform, and the adjustable vertical rod positioning rods 6 are fixed by tightening the bolts according to the vertical rod spacing. After a period of time, when the concrete reaches final setting, the I-beam 3 can be hoisted by a tower crane (usually standard parts can be used. If the erection height of the formwork support 7 is large, two extension pieces 12 can be bolted to both sides of the standard parts. The extension piece 12 fixes the double-channel steel extension piece 32 on the I-beam 3 through the fixing bolt 34, thus extending the length of the I-beam 3, and then extending the platform to meet the requirements of the height-width ratio of the formwork support 7). Align the connection holes 4 opened on the I-beam 3 with the embedded U-shaped steel bars 2 and pass through them, and tighten and fix them with the fixing nuts 5. At this time, rotate the pressing piece 22 at the top end of the first rack 13 and buckle it on the lower flange of the I-beam 3. At this time, remove the formwork support vertical rods on the beam side of the formwork support 7 for the independent beam 1 in the lower layer. If the extension piece 12 of the I-beam 3 is also removed, only the formwork support vertical rods at the bottom end of the beam need to be retained. When continuing to erect, just repeat the above steps. The operation is convenient. And after the concrete strength of the independent beam 1 reaches 100%, an electric hoist 27 is installed on the I-beam 3 and a material hanging basket 31 is hung below. And a limit pin 28 is provided at the end of the I-beam 3. The construction personnel can remotely control the rotation of the electric hoist 27 to adjust the height of the hanging basket 31. The construction personnel put the removed materials into the basket.Use a tower crane for hoisting and upward turnover. The order of demolishing materials is as follows: 1) Adjust the adjustable jack 8 and demolish the beam formwork reinforcement 11 (loosen the knob 25); 2) Demolish the beam formwork; 3) Demolish the formwork support 7; 4) Demolish the I-beam 3 platform. (It should be specially noted that each material component is hoisted by a tower crane).

[0058] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0059] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An assembly formwork reinforcement and support system for high-altitude independent beams, characterized in that, it includes: Independent beam (1), four groups of U-shaped steel bars (2) are preset in the independent beam (1), and two groups of I-beams (3) are installed at the top of the independent beam (1). The four groups of U-shaped steel bars (2) are respectively installed on both sides of the two groups of I-beams (3). Connecting holes (4) are provided on the I-beams (3), the connecting holes (4) are adapted to the U-shaped steel bars (2), and fixing nuts (5) are threadedly connected to the U-shaped steel bars (2). An adjustable positioning rod (6) is installed at the top of the I-beam (3), the top of the positioning rod (6) is connected to a formwork support (7), the top of the formwork support (7) is fixedly connected to a jack (8), and the top of the jack (8) is provided with another independent beam (1). Side forms (10) are installed on both sides of the independent beam (1), and a bottom form (9) in contact with the independent beam (1) is installed at the bottom of the side form (10). Reinforcement members (11) are installed on the outer sides of the side form (10) and the bottom form (9), and extension members (12) are connected to both ends of the I-beam (3); The reinforcement member (11) includes two groups of first racks (13), the two groups of first racks (13) are respectively installed on the outer sides of the two groups of side forms (10), and a first driving member (14) is meshed with the first rack (13). A second rack (15) is connected to the first driving member (14). Third racks (18) are fixedly connected to the bottoms of the two groups of second racks (15). A second driving member (36) is connected between the two groups of third racks (18). First bumps (16) are provided at one ends of the first rack (13), the second rack (15), and the third rack (18), and pressing members (17) are installed at the tops of the two groups of first racks (13). Second bumps (19) are provided at the ends of the two groups of third racks (18); The pressing member (17) includes a fixed shaft (20) fixedly connected to the first rack (13), a lower pressing piece (21) in contact with the side form (10) is rotatably connected to the fixed shaft (20), and an upper pressing piece (22) rotatably connected to the fixed shaft (20) is installed at the top of the lower pressing piece (21). The upper pressing piece (22) is in contact with the I-beam (3); The first driving member (14) and the second driving member (36) both include an outer sheath (23). The three groups of outer sheaths (23) are respectively installed on the outer sides of the first rack (13), the second rack (15), and the third rack (18), and are all slidably connected thereto. A rotating shaft (24) is rotatably connected to the outer sheath (23). One end of the rotating shaft (24) is fixedly connected to an adjusting knob (25), and the other end of the rotating shaft (24) is fixedly connected to a spur gear (26). The two spur gears (26) are respectively installed on one side of the two side molds (10), and are respectively meshed with the first rack (13) and the second rack (15). The remaining one spur gear (26) is located at the bottom end of the bottom mold (9), and is meshed with the two third racks (18).

2. A high-altitude independent beam prefabricated formwork reinforcement and support system according to claim 1, characterized in that: One end of the I-beam (3) is also slidably connected with an electric hoist (27), and a limit pin (28) is fixedly connected to the I-beam (3) on one side of the electric hoist (27). A steel wire rope (29) is connected to the electric hoist (27), and the bottom end of the steel wire rope (29) is connected with a hook (30). A hanging basket (31) is connected to the hook (30).

3. A high-altitude independent beam prefabricated formwork reinforcement and support system according to claim 2, characterized in that: The extension member (12) includes double-channel steel extension pieces (32) movably installed at both ends of the I-beam (3). Fixing holes (33) are formed in both the I-beam (3) and the double-channel steel extension pieces (32). A fixing bolt (34) is connected in the fixing hole (33). The double-channel steel extension piece (32) is fixedly connected to the I-beam (3) through the fixing bolt (34).

4. A high-altitude independent beam prefabricated formwork reinforcement and support system according to claim 3, characterized in that: A horizontal bubble (35) is arranged on one side of the third rack (18).

5. A construction method using the high-altitude independent beam prefabricated formwork reinforcement and support system according to any one of claims 1-4, characterized in that, comprising the following steps: S1: After the formwork support of the lower-layer independent beam is erected, erect the independent beam formwork, and reinforce the bottom formwork and side formwork of the beam by rotating the knob of the adjustable beam formwork reinforcement member. First, rotate the pressing steel plate at the upper opening of the formwork reinforcement member and buckle it on the upper edge of the beam side formwork. Then, tighten the two beam side knobs for vertical reinforcement. Observe the horizontal bubble on the beam bottom formwork reinforcement member to ensure it is horizontal. Finally, rotate the beam bottom knob for horizontal reinforcement; S2: Bind the steel bars of the independent beam, and embed the U-shaped steel bars for fixing the steel platform. Two U-shaped steel bars need to be embedded for one I-beam, and 4 holes are pre-drilled in the lower flange of the I-beam; S3: Pour the concrete of the independent beam. At the same time, according to the number of vertical rods of the formwork support, pre-sleeve a number of adjustable vertical rod positioning rods onto the I-beam of the steel platform, and tighten the bolts according to the vertical rod spacing to fix the adjustable vertical rod positioning rods; S4: After the concrete is finally set, the I-beam of the steel platform can be hoisted by the tower crane, and the pre-opened holes of the I-beam of the steel platform are aligned with the embedded U-shaped steel bars and passed through, and then tightened and fixed by nuts, and the upper pressing steel plate on the upper opening of the rotating beam template reinforcement is buckled on the lower wing plate of the I-beam of the steel platform; S5: Remove the side uprights of the next layer of independent beam formwork. If the steel platform I-beam extension is used, remove it as well, and keep the bottom uprights of the beam; S6: Set up the upper layer of independent beam formwork and repeat steps ①-⑤; S7: After the concrete strength of the independent beam reaches 100%, install an electric winch on the I-beam to hang a material stacking basket, and open a hole at the end of the I-beam to insert a limit pin. The construction workers can control the electric winch to rotate and adjust the height of the stacking basket through remote control. The construction workers put the demolished materials into the basket, use the tower crane to lift it and circulate it for use. The demolition sequence is: 1) adjust the adjustable top support and remove the beam template reinforcement; 2) remove the beam template; 3) remove the formwork frame; 4) remove the I-beam platform.

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