Narrow space beam form installation and reinforcement device and method of operation

Abstract

This invention discloses a beam formwork installation and reinforcement device for confined spaces, comprising a disc-lock frame. An aluminum alloy beam bottom horizontal plate is mounted on top of the disc-lock frame, and a beam bottom support formwork is installed above it. A first timber beam is installed between the two. The inner side of the formwork is a concrete beam with integrated columns. Irregularly shaped metal rods with steel plates and clearance grooves are installed on the outer sides of the formwork on both sides of the columns. These irregularly shaped metal rods are connected by a connecting assembly. A second timber beam is installed between the two columns, with both ends contacting small channel steel. L-shaped fixing clips are fixed to the small channel steel. The connecting assembly replaces the original first nut with an end assembly, which includes a magnetic end plate, a square-section threaded sleeve, and a limiting nut. This invention adapts to confined space layouts through a modular aluminum alloy beam bottom horizontal plate and achieves precise reinforcement of the beam formwork while being suitable for operation in confined spaces using irregularly shaped metal rods with clearance grooves and a connecting assembly containing end assemblies.

Description

Technical Field

[0001] This invention relates to the field of formwork support technology in building construction, and in particular to a device and method for reinforcing beam formwork installation in confined spaces. Background Technology

[0002] In building construction, the integrated beam and column pouring in confined spaces such as equipment rooms, pipe gallery mezzanines, and elevator shaft perimeters presents a significant challenge for formwork support. These areas are characterized by limited space and small working surfaces, demanding extremely high adaptability of formwork installation and overall stability of reinforcement. The quality of formwork support directly determines the forming accuracy of the concrete beams and columns. Inadequate reinforcement can easily lead to problems such as formwork bulging, grout leakage, and formwork concavity, affecting not only the structural appearance but also reducing the structural strength of the beams and columns.

[0003] The current traditional methods for installing and reinforcing beam formwork in confined spaces have the following key drawbacks: Poor adaptability of support structure: Traditional beam bottom support mostly uses wooden square frames or fixed-specification steel supports. Wooden square frames have low strength and are easy to deform. Steel support structures are fixed and cannot be flexibly adjusted in height, making it difficult to adapt to the construction needs of beams and columns of different elevations and sizes in narrow spaces. In addition, frame-type supports are difficult to arrange in narrow spaces. Ineffective formwork reinforcement: The traditional reinforcement method of tie rods combined with ordinary steel sheets has poor fit with the beam side formwork, resulting in uneven stress. During concrete pouring, problems such as formwork bulging and running out are likely to occur. In addition, there is a lack of effective lateral support between the columns, and the formwork is easily affected by lateral pressure and will dent, leading to deviations in the beam and column forming dimensions. The installation and operation are cumbersome: the operating surface is limited in the narrow space, and traditional template reinforcement requires the use of multiple connectors to splice and fix them. There are many steps to assemble and debug each component, resulting in low construction efficiency. Moreover, the splices are prone to loosening, which increases the construction safety hazards. Insufficient strength of the formwork structure: The load-bearing plates of the beam bottom formwork are mostly single wooden boards with weak compressive and deformation resistance. They are prone to sinking under the lateral pressure and gravity of the concrete pouring, affecting the elevation accuracy of the beam. At the same time, the steel components that reinforce the beam side lack auxiliary support and are prone to displacement after being stressed, further reducing the reinforcement effect.

[0004] In addition, the first nut used in traditional reinforcement structures is inconvenient to install and operate in a confined space. The engagement and positioning of the nut requires sufficient operating space. In a confined space, the field of vision is limited and the operating tools cannot be used freely, resulting in low nut installation efficiency and difficulty in ensuring the tightening effect, which further restricts the construction progress and reinforcement quality.

[0005] Therefore, it is necessary to provide a device and method for installing and reinforcing beam formwork in confined spaces to solve the above-mentioned technical problems. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention provides a beam formwork installation and reinforcement device and operation method in confined spaces.

[0007] This invention provides a beam formwork installation and reinforcement device and operation method in confined spaces. By improving the structure of the irregular metal rod and connecting components, and replacing the original first nut with an end component adapted to operation in confined spaces, the problem of inconvenient installation of connecting parts in confined spaces is solved. At the same time, the original modular and adjustable core advantages are retained, further improving construction efficiency and reinforcement stability.

[0008] This invention provides a beam formwork installation and reinforcement device for confined spaces, comprising a disc-lock frame, an aluminum alloy beam bottom horizontal plate installed on the top of the disc-lock frame, a beam bottom support formwork above the aluminum alloy beam bottom horizontal plate, a first wooden beam installed between the beam bottom support formwork and the aluminum alloy beam bottom horizontal plate, concrete inside the beam bottom support formwork, the concrete including the beam body and a first column and a second column integrally set at the bottom of the beam body, irregular metal rods are provided on the outer sides of the beam bottom support formwork on both sides of the first column and the outer sides of the beam bottom support formwork on both sides of the second column, and the irregular metal rods on both sides of the first column and the second column are connected by connecting components.

[0009] As a further improvement to the above scheme, the bottom horizontal plate of the aluminum alloy beam includes two long aluminum alloy rectangular tubes and two short aluminum alloy rectangular tubes. The two short aluminum alloy rectangular tubes are welded to the two ends of the two long aluminum alloy rectangular tubes to form a frame structure. The aluminum alloy material has high strength and light weight, which is suitable for hoisting and arrangement in narrow spaces. The frame structure can improve the load-bearing capacity of the bottom of the beam and prevent subsidence during pouring.

[0010] As a further improvement to the above solution, the irregular metal rod includes two small channel steels and three short galvanized rectangular tubes. The short galvanized rectangular tubes are welded to the ends and middle of the two small channel steels, respectively, so that a space is formed between the two small channel steels that allows the connecting components to pass through. A steel plate is fixed to one side of the small channel steel, and an avoidance groove is formed between the two steel plates. The channel structure of the channel steel fits tightly with the steel plate and the outer side of the beam side template, improving the uniformity of stress. The avoidance groove provides installation space for the limit nut of the end component. The reserved space facilitates the insertion and fixing of the connecting components and simplifies the operation steps in a narrow space.

[0011] As a further improvement to the above solution, the connecting assembly includes a through-beam PVC sleeve inserted into the concrete. A through-beam tie rod is installed inside the through-beam PVC sleeve. Both ends of the through-beam tie rod pass through the formwork template at the bottom of the beam. An end assembly is installed at one end of the through-beam tie rod. The end assembly includes a threaded sleeve, a limiting nut, and an end plate positioned between two small channel steels. The outer contour of the threaded sleeve's cross-section is square to prevent rotation during screwing. Both ends of the threaded sleeve are connected to the limiting nut via threads. The end of the threaded sleeve is equipped with a magnetic end plate that can attract the small channel steels, enabling rapid positioning of the end assembly. This facilitates adjustment of the end assembly's position in confined spaces or under conditions of limited visibility. The end plate contacts the small channel steels, limiting... The nut contacts the small channel steel and is located within the clearance groove. One end of the through-beam tie rod is threadedly connected to the threaded sleeve. The inner entrance of the threaded sleeve near the through-beam tie rod has a chamfer to facilitate precise insertion of the through-beam tie rod even in the absence of a clear view. The other end of the through-beam tie rod is fitted with a U-shaped clamp. A second nut is installed on the through-beam tie rod to limit the position of the U-shaped clamp. Steel pipes are installed in both grooves of the U-shaped clamp, and the steel pipes contact the small channel steel. The end of the through-beam tie rod near the U-shaped clamp has a wrench groove for easy wrench rotation, allowing the rod to be tightened without a large wrench, making it suitable for operation in confined spaces. Through the cooperation of the end assembly, U-shaped clamp, steel pipe, and second nut, bidirectional fastening of the irregular metal rod is achieved, ensuring a tight fit between the irregular metal rod and the beam side formwork, effectively preventing formwork bulging during concrete pouring. At the same time, all connectors are adapted to the operational requirements of confined spaces, significantly improving installation efficiency.

[0012] As a further improvement to the above solution, the disc-lock frame includes several uprights and several horizontal bars connected to the uprights. The uprights and horizontal bars are interlocked to form a grid-like support frame. The disc-lock interlocking structure is easy to install, requires no additional connectors, and is suitable for rapid erection in narrow spaces. The grid-like frame can improve the overall stability of the support.

[0013] As a further improvement to the above solution, the disc-lock scaffold also includes an adjustable support. The adjustable support is embedded in the top of the upright and has a fastening ring connected to it by threads. The fastening ring contacts the top of the upright. By rotating the adjustable support, the support height can be flexibly adjusted to meet the construction needs of beams at different elevations. The fastening ring can lock the adjustable support at a preset height to prevent the support from slipping during the pouring process and causing deviations in the bottom elevation of the beam.

[0014] As a further improvement to the above scheme, several second timbers are provided between the second column and the first column, and the two ends of the second timbers are in contact with the outer side of the corresponding small channel steel. The second timbers provide lateral support for the formwork between the columns, effectively preventing the formwork from being concave due to lateral pressure during concrete pouring, and further ensuring the forming accuracy of the beam and column.

[0015] As a further improvement to the above solution, L-shaped fixing clips are fixed on the small channel steel to support it. The L-shaped fixing clips can provide dual vertical and horizontal support for the small channel steel, preventing it from shifting due to the fastening force and the lateral pressure of the pouring, thus enhancing the reinforcement stability of the irregular metal rod and ensuring the consistency of the stress on the overall reinforcement structure.

[0016] Operation method of a beam formwork installation and reinforcement device in a confined space Includes the following steps: S1. Preliminary Preparations Based on the design dimensions of the beams and integrated columns in the confined space, cut the beam bottom formwork template, customize the aluminum alloy beam bottom horizontal plate and special-shaped metal rods of the appropriate size, process and manufacture L-shaped fixing clips, prepare accessories such as disc buckle frames, connecting components, first timber, second timber, etc., and clear the debris in the construction area, and plan the erection position of the disc buckle frames and the layout direction of the special-shaped metal rods. S2, Scaffolding erection Erect uprights at equal intervals along the length of the beam, and connect the horizontal bars and uprights with disc buckles to form a grid-like support frame; embed the adjustable brackets into the top of the uprights, rotate the adjustable brackets to adjust them to the design elevation of the bottom of the beam, and tighten the fastening rings to lock the brackets, ensuring that the tops of all adjustable brackets are on the same horizontal plane. S3, Beam bottom formwork installation The bottom horizontal plate of the aluminum alloy beam is hoisted to the top of the adjustable support. The position is adjusted so that the horizontal plate is aligned with the direction of the beam. Multiple horizontal plates are spliced ​​together using snap-fit ​​connections. The first wooden beam is laid at equal intervals on the top of the bottom horizontal plate of the aluminum alloy beam. Then, the cut beam bottom formwork template is laid on top of the first wooden beam. The joints of the template are sealed to prevent grout leakage during pouring. S4, Arrangement of irregular metal rods and L-shaped fixing clips Irregular metal rods are attached to the outside of the formwork at the bottom of the beams on both sides of the first and second columns. The placement angle of the irregular metal rods is adjusted according to the position of the formwork to ensure that the steel plate is tightly attached to the formwork. L-shaped fixing clips are welded to the preset position of the small channel steel to ensure that the bottom of the L-shaped fixing clips is in close contact with the construction ground, thus completing the auxiliary support and fixing of the small channel steel. S5, Second Timber Arrangement A second timber is laid at equal vertical intervals at a predetermined position between the first and second columns. The position of the second timber is adjusted so that its two ends are in close contact with the outer side of the corresponding small channel steel, providing lateral support for the formwork between the columns. S6. Installation of connecting components and reinforcement of templates Insert the PVC sleeve through the beam into the beam-column area where concrete is to be poured, ensuring the sleeve position matches the design requirements. Insert the tie rod through the beam into the PVC sleeve, extending both ends to the outside of the irregular metal rod. Screw the end assembly onto one end of the tie rod, using the magnetism of the end plate to attract the end assembly to the preset position on the small channel steel, causing the limit nut to engage in the clearance groove. The threaded sleeve has a chamfer at the inner entrance of the same end as the limit nut to facilitate the insertion of the tie rod. Align the tie rod and threaded sleeve when there is no visual connection, and use a wrench to rotate the tie rod along the wrench groove to complete the threaded engagement and locking connection between the tie rod and the threaded sleeve. Fit the other end with a U-shaped clip, install the steel pipe in the groove of the U-shaped clip, screw on the second nut and tighten it to ensure close contact between the steel pipe and the small channel steel, completing the fastening of a single connection assembly. All connection assemblies are operated in this manner to ensure uniform reinforcement and consistent stress on the formwork. S7, Concrete Pouring Check the stability of the formwork reinforcement, the sealing of the joints, and the firmness of the installation of the second timber and L-shaped fixing clips. After confirming that everything is correct, pour concrete into the inner side of the formwork at the bottom of the beam. During the pouring process, control the pouring speed and pouring volume, and pour and vibrate in layers to avoid excessive lateral pressure that could cause the formwork to deform or shift. S8. Post-dismantling and maintenance After the concrete reaches the design strength, first loosen the second nut, and then use a wrench to rotate the through-beam tie rod in the opposite direction along the wrench groove to completely separate the through-beam tie rod from the threaded sleeve of the end assembly. Remove the U-shaped clip, steel pipe, and through-beam tie rod, and then remove the irregular metal rod, L-shaped fixing clip, and second timber. Subsequently, remove the beam bottom formwork template, the first timber, and the aluminum alloy beam bottom cross plate in sequence, and finally remove the disc buckle frame. Remove rust and paint all dismantled metal parts, clean and repair the timber and formwork, and replace damaged parts in time for future reuse.

[0017] Compared with related technologies, the present invention provides the following beneficial effects: This invention achieves high-strength support for the bottom of beams by using a frame-type aluminum alloy beam bottom horizontal plate in conjunction with a disc buckle frame. The aluminum alloy material is lightweight and high-strength, making it suitable for hoisting and arrangement in confined spaces. The snap-fit ​​structure of the disc buckle frame enables rapid erection, solving the problems of cumbersome installation and poor adaptability of traditional support structures, and greatly improving construction efficiency in confined spaces. Steel plates and clearance grooves are added to irregularly shaped metal rods. The original first nut of the connecting component is replaced with an end component. The magnetic end plate of the end component enables rapid positioning without a field of vision. The chamfer of the threaded sleeve facilitates the precise insertion of the screw. The wrench groove is suitable for operation with small tools. The structure solves the technical problem of inconvenient installation of connecting parts in narrow spaces. At the same time, the channel structure of the channel steel and the steel plate fit tightly against the outside of the template. The two-way fastening structure of the connecting component makes the force evenly distributed, effectively preventing the problems of formwork bulging and grout leakage during concrete pouring, and improving the forming quality of beams and columns. The adjustable support at the top of the upright of the disc-lock scaffold, together with the fastening ring, can flexibly adjust the support height and achieve precise locking, adapting to the construction needs of beams at different elevations, avoiding the problem of inconvenient height adjustment of traditional scaffolds. At the same time, the grid-like disc-lock scaffold frame improves the overall stability of the support and reduces the safety hazards of construction in confined spaces. The second timber beam set between the two columns provides lateral support for the formwork, effectively preventing the formwork from concave due to the lateral pressure of the pouring. The L-shaped fixing clips on the small channel steel can prevent the irregular metal rods from shifting under force. The combination of the two further enhances the overall stability of the reinforced structure and fundamentally solves the structural defects of traditional reinforcement methods. Each component is a modular structure, which can be flexibly combined according to the size of the beam and column, and can be reused after disassembly, reducing construction costs. At the same time, the PVC sleeve through the beam can prevent the tie rod from sticking to the concrete, which facilitates the removal of the tie rod and the sealing of the sleeve later. The end assembly is an integrated structure with no loose parts, making it easy to disassemble and reassemble and reuse. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the irregular metal rod structure of the present invention; Figure 3 This is a schematic diagram of the aluminum alloy beam bottom horizontal plate structure of the present invention; Figure 4 This is a schematic diagram of the connection component structure of the present invention; Figure 5 This is a schematic diagram of the end assembly structure of the present invention.

[0019] Labels in the diagram: 1. Concrete; 2. Beam bottom formwork; 3. First timber; 4. Through-beam PVC sleeve; 5. Through-beam tie rod; 51. Wrench groove; 6. Aluminum alloy beam bottom horizontal plate; 61. Long aluminum alloy rectangular tube; 62. Short aluminum alloy rectangular tube; 7. Irregular metal rod; 71. Small channel steel; 72. Short galvanized rectangular tube; 73. Steel plate; 74. Clearance groove; 8. U-shaped clip; 9. Steel pipe; 10. Second nut; 12. Adjustable support; 13. Fastening ring; 14. Upright; 15. Horizontal bar; 17. Disc buckle frame; 18. Beam body; 19. First column; 20. Second column; 21. Connecting assembly; 22. End assembly; 221. Threaded sleeve; 222. Limiting nut; 223. End plate; 23. Second timber; 24. L-shaped fixing clip. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figures 1 to 5 A beam formwork installation and reinforcement device for confined spaces is used to install and reinforce the formwork for the pouring of integrated beam-column structures in confined spaces during building construction. Through modular structure, flexible height adjustment, precise fastening and reinforcement, and multiple auxiliary supports, it improves construction efficiency and concrete forming quality. It is suitable for the construction needs of beams and integrated columns in confined spaces such as equipment rooms, pipe gallery mezzanines, and elevator shafts, and in particular, it solves the technical problem of inconvenient installation and operation of connectors in confined spaces.

[0022] Specifically, the beam formwork installation and reinforcement device in confined spaces includes core components such as: disc buckle frame 17, aluminum alloy beam bottom horizontal plate 6, beam bottom support formwork 2, first timber 3, special-shaped metal rod 7, connecting component 21, second timber 23, and L-shaped fixing clip 24. These components work together to achieve stable support, precise reinforcement, and anti-displacement and anti-concavity effects for the beam formwork. Among them, the end component 22 in the connecting component 21 is a core improved component, adapted to the operation requirements in confined spaces.

[0023] The disc-lock frame 17 serves as the load-bearing foundation for the overall support, comprising several uprights 14, several horizontal bars 15, adjustable supports 12, and fastening rings 13. The uprights 14 are arranged at equal intervals along the vertical direction, with a spacing of 80-100cm. The horizontal bars 15 are connected to the uprights 14 along the horizontal direction via disc-lock fasteners, forming a grid-like support frame. This fastener structure eliminates the need for bolts or other connectors, allowing for rapid erection in confined spaces and improving construction efficiency. The uprights 14 are made of Q235 steel, and the horizontal bars 15 are made of DN48 galvanized steel pipe, both possessing excellent compressive and deformation resistance. The adjustable support 12 is embedded in the top of the upright 14. Its outer side wall is provided with external threads. By rotating the adjustable support 12, the vertical height can be finely adjusted. The adjustment range is 0-20cm, which can adapt to the construction needs of beams at different elevations. The fastening ring 13 is engaged with the external threads of the adjustable support 12. Tightening the fastening ring 13 so that its bottom abuts against the top of the upright 14 can lock the adjustable support 12 at the preset height and prevent the support from slipping during the concrete pouring process, which would cause the bottom of the beam to sink.

[0024] The aluminum alloy beam bottom horizontal plate 6 is installed on top of the adjustable support 12. It includes two long aluminum alloy rectangular tubes 61 and two short aluminum alloy rectangular tubes 62. The two short aluminum alloy rectangular tubes 62 are welded to the two ends of the two long aluminum alloy rectangular tubes 61, forming a rectangular frame structure. The load-bearing capacity of the frame structure is much higher than that of a single plate, which can effectively distribute the weight of the concrete pouring and prevent the bottom of the beam from settling. The aluminum alloy beam bottom horizontal plate 6 is made of 6061 aluminum alloy, which is high in strength and lightweight. The weight of a single horizontal plate does not exceed 20kg, which is convenient for manual hoisting and placement in confined spaces. Its top abuts against the bottom of the first timber 3. The first timber 3 is made of solid wood with a specification of 50*100mm, which is evenly arranged along the length of the beam with a spacing of 20-30cm. It is used to distribute the stress on the beam bottom formwork 2 and avoid local stress concentration damage to the formwork.

[0025] The bottom formwork 2 is laid on top of the first timber 3. It is made of multi-layer plywood with a thickness of 18mm. The inside of the formwork is the concrete 1 to be poured. The concrete 1 includes the beam body 18 and the first column 19 and the second column 20, which are integrally set at the bottom of the beam body 18. The bottom formwork 2 is cut according to the outline of the beam-column integrated structure to fit tightly with the concrete pouring surface. The joints of the formwork are sealed with sealant to prevent grout leakage during pouring.

[0026] The irregularly shaped metal rod 7 is arranged on the outside of the beam bottom formwork 2 on both sides of the first column 19 and the second column 20. It is the core reinforcement component of the beam side formwork and includes two small channel steels 71, three short galvanized rectangular tubes 72, and a steel plate 73. The small channel steels 71 are made of No. 8 channel steel, and the short galvanized rectangular tubes 72 are 40*40mm in size. The three short galvanized rectangular tubes 72 are welded to the two ends and the middle of the two small channel steels 71 respectively, so that a reserved space is formed between the two small channel steels 71 to facilitate the insertion and fixing of the connecting component 21. A 5mm thick steel plate 73 is welded to the side of the small channel steel 71 facing the beam bottom formwork 2. A clearance groove 74 with a width adapted to the limit nut 222 is formed between the two steel plates 73. The clearance groove 74 provides installation and stress space for the limit nut 222 of the end component 22. The steel plate 73 and the beam bottom formwork 2 The outer side fits tightly, so that the reinforcement force is evenly transmitted to the template, avoiding local stress concentration that could lead to template damage.

[0027] The connecting component 21 is a fastening component for the irregular metal rod 7, including a through-beam PVC sleeve 4, a through-beam tie rod 5, an end component 22, a mountain-shaped clamp 8, a steel pipe 9, and a second nut 10.

[0028] The PVC sleeve 4 is inserted into the beam and column area of ​​the concrete to be poured 1. Its diameter is 2-4mm larger than the tie rod 5 to prevent the tie rod from sticking to the concrete and to facilitate later removal. The through-beam tie rod 5 is made of M14 high-strength threaded rod and is installed inside the through-beam PVC sleeve 4. Both ends pass through the bottom formwork template 2 of the beam and extend to the outside of the special-shaped metal rod 7. The through-beam tie rod 5 has two wrench grooves 51 symmetrically provided at the end near the mountain-shaped clamp 8. The wrench grooves 51 are rectangular grooves with a depth of 5mm and a width of 10mm, which are suitable for small open-end wrenches. The through-beam tie rod 5 has an external thread at the end near the end assembly 22, which is compatible with the internal thread of the threaded sleeve 221. The end assembly 22 is an improved component that replaces the original first nut. It includes a threaded sleeve 221, a limiting nut 222, and an end plate 223. The outer cross-section of the threaded sleeve 221 is square with a side length of 30mm, which can effectively prevent rotation during screwing. The internal thread of the threaded sleeve 221 is adapted to the external thread of the through-beam tie rod 5. The inner entrance of the end closest to the through-beam tie rod 5 has a 45° chamfer to facilitate insertion of the rod without a visible view. Both ends of the threaded sleeve 221 are screwed with M14 limiting nuts 222. The limiting nuts 222 are inserted into the clearance groove 74 and abut against the outer side of the small channel steel 71. The end plate 223 is welded to the end of the threaded sleeve 221 away from the through-beam tie rod 5. The end plate 223 is a magnetic iron plate with a thickness of 8mm. It can be magnetically attracted to the small channel steel 71 to realize the end assembly 22. The rapid positioning allows for the screw and threaded sleeve to be aligned and engaged without additional fixing. A U-shaped clamp 8 is fitted onto the other end of the through-beam tie rod 5. A DN48 galvanized steel pipe 9 is installed in each of the two grooves of the U-shaped clamp 8. The steel pipe 9 is in close contact with the outer side of the small channel steel 71. A second nut 10 is screwed onto the through-beam tie rod 5. The second nut 10 abuts against the outer side of the U-shaped clamp 8. Tightening the second nut 10 achieves the fastening of the other side.

[0029] The bidirectional fastening structure of the end assembly 22 with the mountain-shaped clamp 8, steel pipe 9, and second nut 10 ensures that the irregular metal rod 7 fits tightly with the template, effectively preventing mold expansion and displacement. Moreover, all operations are adapted to the limited field of vision and tools in confined spaces, greatly improving installation efficiency.

[0030] The second timber 23 is placed between the first column 19 and the second column 20. It is made of 50*100mm solid timber with the same specifications as the first timber 3, and is set at equal intervals along the vertical direction with a spacing of 30-40cm. Its two ends are in close contact with the outer side of the corresponding small channel steel 71 to provide lateral support for the formwork between the two columns, effectively offsetting the lateral pressure during concrete pouring, preventing the formwork from concave, and ensuring the verticality and dimensional accuracy of the column.

[0031] L-shaped fixing clips 24 are fixed to the small channel steel 71. They are made of 30*30mm angle steel and are fixed to the outside of the small channel steel 71 by welding. Several L-shaped fixing clips 24 are evenly spaced along the length of each small channel steel 71, with a spacing of 40-50cm. The bottom of the L-shaped fixing clips 24 contacts the construction ground and the side fits against the small channel steel 71, forming a double support for the small channel steel 71 in both vertical and horizontal directions. This prevents the small channel steel 71 from shifting due to the fastening force of the connecting components and the lateral pressure of the concrete, ensuring the accurate reinforcement position of the irregular metal rod 7 and achieving the consistency of the stress of the overall reinforcement structure.

[0032] The following describes the operation method of this device in detail with reference to specific usage scenarios. This method is optimized for operation in confined spaces, with a focus on improving the installation and removal steps of the end components to enhance ease of operation: Preliminary preparations Based on the design dimensions of the beam 18 and the integrated column in the confined space, the beam bottom formwork template 2 is cut, and aluminum alloy beam bottom horizontal plates 6 and irregular metal rods 7 with steel plates 73 and clearance grooves 74 are customized to fit the size. L-shaped fixing clips 24 and end components 22 are finely processed and manufactured (ensuring the magnetism of the end plate 223 and the chamfering accuracy of the threaded sleeve 221). Accessories such as disc buckle frame 17, connecting components 21, first timber 3, and second timber 23 are prepared, and debris in the construction area is cleared. The erection position of disc buckle frame 17 and the layout direction of irregular metal rods 7 are planned, and the preset installation position of end components 22 is marked.

[0033] scaffolding erection Erect uprights 14 at equal intervals along the length of the beam to ensure that the uprights 14 are vertical, stable, and regularly spaced; connect the horizontal bars 15 to the uprights 14 with snap fasteners to form a grid-like support frame; insert the adjustable brackets 12 into the top of the uprights 14, rotate the adjustable brackets 12 to adjust to the design elevation of the bottom of the beam, tighten the fastening rings 13 to lock the brackets, and use a level to calibrate to ensure that the tops of all adjustable brackets 12 are on the same horizontal plane.

[0034] Beam bottom formwork installation The aluminum alloy beam bottom horizontal plate 6 is hoisted to the top of the adjustable support 12. The position is adjusted so that the horizontal plate is aligned with the beam. Multiple horizontal plates are spliced ​​together using snap-fit ​​connections to eliminate gaps. The first timber 3 is laid at equal intervals on top of the aluminum alloy beam bottom horizontal plate 6. The timber is arranged straight and the stress is even. Then, the cut beam bottom formwork 2 is laid on top of the first timber 3. The joints of the formwork are sealed with sealant to prevent grout leakage during pouring.

[0035] Arrangement of irregular metal rods and L-shaped fixing clips On the outside of the formwork template 2 at the bottom of the beam on both sides of the first column 19 and the second column 20, irregular metal rods 7 are attached. The placement angle of the irregular metal rods 7 is adjusted according to the position of the template so that the steel plate 73 is tightly attached to the template without gaps. The L-shaped fixing clips 24 are welded to the preset position of the small channel steel 71. After welding, the position of the fixing clips is adjusted so that the bottom of the L-shaped fixing clips 24 is in close contact with the construction ground, thus completing the auxiliary support and fixation of the small channel steel 71.

[0036] Second timber arrangement Second timber 23 is laid vertically at equal intervals at a predetermined position between the first column 19 and the second column 20. Regular and undamaged timber is selected. The position of the second timber 23 is adjusted so that its two ends are in close contact with the outer side of the corresponding small channel steel 71, so as to provide reliable lateral support for the formwork between the columns and prevent the formwork from being compressed and concave.

[0037] Connection component installation and template reinforcement The PVC sleeve 4 is inserted into the beam-column area where concrete is to be poured, ensuring the sleeve position matches the design requirements. Temporary supports are used to secure the sleeve. The tie rod 5 is inserted into the PVC sleeve 4, extending both ends to the outside of the irregular metal rod 7, ensuring the extension length matches the tightening requirements. The end assembly 22 is screwed onto one end of the tie rod 5. The magnetism of the end plate 223 attracts the end assembly 22 to the preset position on the small channel steel 71, allowing the limit nut 222 to precisely engage in the clearance groove 74. The chamfer of the threaded sleeve 221 is used to align the tie rod 5 and the threaded sleeve 221 even without a visual view. A small open-end wrench is inserted into the wrench groove 51 of the tie rod 5, and the wrench is rotated to complete the threaded engagement and lock the tie rod 5 and the threaded sleeve 221, ensuring the end plate 223 and the limit nut 222 are properly engaged. All are in close contact with the small channel steel 71; a mountain-shaped clip 8 is fitted on the other end of the through beam tie rod 5, and a steel pipe 9 is installed in the groove of the mountain-shaped clip 8. The second nut 10 is screwed on and tightened so that the steel pipe 9 is in close contact with the small channel steel 71, thus completing the fastening of a single set of connecting components; all connecting components 21 are operated in this way, and the fastening force is strictly controlled to ensure that the template is reinforced evenly and the force is consistent.

[0038] Concrete pouring Before pouring, a comprehensive quality check is conducted, focusing on the stability of the formwork reinforcement, the sealing of the joints, the firmness of the installation of the second timber and L-shaped fixing clips, and the adsorption and fastening effect of the end components. After confirming that everything is correct, concrete 1 is poured into the inner side of the formwork 2 at the bottom of the beam. During the pouring process, the pouring speed and pouring volume are controlled, and a layered pouring and layered vibration process is adopted. The pouring height of each layer does not exceed 50cm. The vibration time and vibration point are strictly controlled to avoid excessive lateral pressure that could cause the formwork to deform or shift.

[0039] Post-dismantling and maintenance After the concrete strength reaches the design requirements, the dismantling work is carried out in reverse order: first, the fasteners, then the formwork, and finally the supports. First, loosen the second nut 10, insert the small open-end wrench into the wrench groove 51, and rotate the through-beam tie rod 5 in the opposite direction to completely separate the through-beam tie rod 5 from the threaded sleeve 221 of the end assembly 22. Then, remove the mountain-shaped clip 8, the steel pipe 9, and the through-beam tie rod 5 in sequence. The end assembly 22 can be quickly removed using the magnetism of the end plate 223. Next, remove the irregular metal rod 7, the L-shaped fixing clip 24, and the second timber 23. Then, remove the beam bottom formwork 2, the first timber 3, and the aluminum alloy beam bottom horizontal plate 6 in sequence. Finally, disassemble the disc buckle frame 17. Handle the components and the formed concrete structure with care throughout the dismantling process to avoid bumping and damaging them.

[0040] After dismantling, all metal components were thoroughly cleaned to remove surface concrete residue and rust. End components 22, irregular metal rods 7, and disc buckle frames 17 were rust-removed, painted, and treated for corrosion protection. The magnetism of end plates 223 was checked, and if it weakened, it was remagnetized. Timber, formwork, and other reusable materials were cleaned and repaired. Deformed formwork was leveled, damaged parts were repaired, and severely damaged unusable parts were screened and replaced promptly. All qualified components were categorized and organized, and proper storage and protection were implemented to ensure their reuse in subsequent construction.

[0041] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A beam form installation reinforcement device for tight spaces, characterized by, The system includes a disc buckle frame (17), on the top of which is an aluminum alloy beam bottom plate (6). Above the aluminum alloy beam bottom plate (6) is a beam bottom formwork template (2). A first timber (3) is installed between the beam bottom formwork template (2) and the aluminum alloy beam bottom plate (6). Concrete (1) is provided inside the beam bottom formwork template (2). The concrete (1) includes a beam body (18) and a first column (19) and a second column (20) integrally set at the bottom of the beam body (18). Irregular metal rods (7) are provided on the outer sides of the beam bottom formwork template (2) on both sides of the first column (19) and the outer sides of the beam bottom formwork template (2) on both sides of the second column (20). The irregular metal rods (7) on both sides of the first column (19) and the irregular metal rods (7) on both sides of the second column (20) are connected by connecting components (21).

2. The beam form installation and reinforcement device for tight spaces of claim 1, wherein, The bottom horizontal plate (6) of the aluminum alloy beam includes two long aluminum alloy rectangular tubes (61) and two short aluminum alloy rectangular tubes (62), with the two short aluminum alloy rectangular tubes (62) respectively welded to the ends of the two long aluminum alloy rectangular tubes (61).

3. A beam form installation and reinforcement device for use in tight spaces according to claim 2, wherein, The irregular metal rod (7) includes two small channel steels (71) and three short galvanized rectangular tubes (72). The short galvanized rectangular tubes (72) are welded to the ends and middle of the two small channel steels (71) respectively, so that a space is formed between the two small channel steels (71) that allows the connecting component (21) to pass through. A steel plate (73) is fixed on one side of the small channel steel (71), and an avoidance groove (74) is formed between the two steel plates (73).

4. The beam formwork installation and reinforcement device in a confined space according to claim 3, characterized in that, The connecting assembly (21) includes a through-beam PVC sleeve (4) inserted into the concrete (1). A through-beam tie rod (5) is provided inside the through-beam PVC sleeve (4). Both ends of the through-beam tie rod (5) pass through the beam bottom formwork template (2). An end assembly (22) is installed at one end of the through-beam tie rod (5). The end assembly (22) includes a threaded sleeve (221) disposed between two small channel steels (71). The outer contour of the cross-section of the threaded sleeve (221) is square. Both ends of the threaded sleeve (221) are connected to limit nuts (222) via threads. An end plate (223) is provided at the end of the threaded sleeve (221). The end plate (223) is magnetic and attracts the small channel steels (71), facilitating adjustment of the position of the end assembly (22). The plate (223) contacts the small channel steel (71), and the limiting nut (222) contacts the small channel steel (71). The limiting nut (222) is located in the relief groove (74). One end of the through beam tie rod (5) is connected to the threaded sleeve (221) by thread. The other end of the through beam tie rod (5) is fitted with a mountain-shaped clip (8). A second nut (10) for limiting the position of the mountain-shaped clip (8) is installed on the through beam tie rod (5). Steel pipes (9) are installed in the two grooves of the mountain-shaped clip (8). The steel pipes (9) are in contact with the small channel steel (71). The end of the through beam tie rod (5) near the mountain-shaped clip (8) is provided with a wrench groove (51) for easy wrench rotation.

5. The beam formwork installation and reinforcement device in a confined space according to claim 1, characterized in that, The disc buckle frame (17) includes several uprights (14) and several crossbars (15) connected to the uprights (14).

6. A beam formwork installation and reinforcement device in a confined space according to claim 5, characterized in that, The disc buckle frame (17) also includes an adjustable support (12), which is embedded in the top of the upright (14). A fastening ring (13) is threadedly connected to the adjustable support (12), and the fastening ring (13) contacts the top of the upright (14).

7. A beam formwork installation and reinforcement device in a confined space according to claim 5, characterized in that, Several second timbers (23) are provided between the second column (20) and the first column (19), and the two ends of the second timbers (23) are in contact with the corresponding small channel steels (71).

8. A beam formwork installation and reinforcement device in a confined space according to claim 7, characterized in that, The small channel steel (71) is fixed with an L-shaped fixing clip (24) for supporting the small channel steel (71).

9. A method for operating a beam formwork installation and reinforcement device in a confined space, characterized in that, Includes the following steps: S1. Preliminary Preparations Based on the design dimensions of the beam (18) and the integrated column in the narrow space, cut the beam bottom formwork template (2), customize the aluminum alloy beam bottom horizontal plate (6) and the special metal rod (7) of the appropriate size, process and manufacture L-shaped fixing clips (24), prepare accessories such as disc buckle frame (17), connecting components (21), first timber (3), second timber (23), and clean up the debris in the construction area, plan the erection position of disc buckle frame (17) and the layout direction of special metal rod (7); S2, Scaffolding erection Erect uprights (14) at equal intervals along the length of the beam. Connect the horizontal bars (15) to the uprights (14) with snap fasteners to form a grid-like support frame. Insert the adjustable brackets (12) into the top of the uprights (14), rotate the adjustable brackets (12) to adjust to the design elevation of the bottom of the beam, and tighten the fastening rings (13) to lock the brackets, ensuring that the tops of all adjustable brackets (12) are on the same horizontal plane. S3, Beam bottom formwork installation The aluminum alloy beam bottom horizontal plate (6) is hoisted to the top of the adjustable support (12), and its position is adjusted so that the horizontal plate is aligned with the beam. Multiple horizontal plates are spliced ​​together using snap-fit ​​connections. The first timber (3) is laid at equal intervals on the top of the aluminum alloy beam bottom horizontal plate (6), and then the cut beam bottom formwork template (2) is laid on top of the first timber (3). The template joints are sealed to prevent grout leakage during pouring. S4, Arrangement of irregular metal rods and L-shaped fixing clips On the outside of the formwork template (2) at the bottom of the beam on both sides of the first column (19) and the second column (20), special-shaped metal rods (7) are attached. The placement angle of the special-shaped metal rods (7) is adjusted according to the position of the template so that the steel plate (73) is tightly attached to the template. The L-shaped fixing clip (24) is welded to the preset position of the small channel steel (71) so that the bottom of the L-shaped fixing clip (24) is in close contact with the construction ground, thus completing the auxiliary support and fixing of the small channel steel (71). S5, Second Timber Arrangement Second timber (23) is laid vertically at equal intervals at a predetermined position between the first column (19) and the second column (20). The position of the second timber (23) is adjusted so that its two ends are in close contact with the outer side of the corresponding small channel steel (71) to provide lateral support for the formwork between the columns. S6. Installation of connecting components and reinforcement of templates Insert the PVC sleeve (4) through the beam into the beam-column area where concrete is to be poured, ensuring that the sleeve position is consistent with the design requirements; insert the tie rod (5) through the beam into the PVC sleeve (4), with both ends extending to the outside of the shaped metal rod (7); screw the end assembly (22) into one end of the tie rod (5), and use the magnetism of the end plate (223) to attract the end assembly (22) to the preset position of the small channel steel (71), so that the limiting nut (222) is inserted into the clearance groove (74). The threaded sleeve (221) is located at the same end of the limiting nut (222) with a chamfer at the inner entrance, which facilitates the insertion of the tie rod (5). When the tie rod (5) and the threaded sleeve (221) are not in sight, align them and use a wrench to rotate the tie rod (5) along the wrench groove (51) to complete the tie rod (5). The threaded connection with the threaded sleeve (221) is locked; a mountain-shaped clamp (8) is fitted on the other end, and a steel pipe (9) is installed in the groove of the mountain-shaped clamp (8). The second nut (10) is screwed on and tightened so that the steel pipe (9) is in close contact with the small channel steel (71), thus completing the fastening of a single set of connecting components; all connecting components (21) are operated in this way to ensure that the template is reinforced evenly and the stress is consistent; S7, Concrete Pouring Check the stability of the template reinforcement, the sealing of the joints, and the installation firmness of the second timber (23) and L-shaped fixing clips. After confirming that there are no errors, pour concrete (1) into the inner side of the bottom formwork (2). Control the pouring speed and pouring volume during the pouring process, pour and vibrate in layers to avoid excessive lateral pressure that could cause the template to deform or shift. S8. Post-dismantling and maintenance After the concrete strength reaches the design requirements, first loosen the second nut (10), and use a wrench to rotate the through-beam tie rod (5) in the opposite direction along the wrench groove (51) to completely separate the through-beam tie rod (5) from the threaded sleeve (221) of the end assembly (22). Remove the mountain-shaped clip (8), steel pipe (9) and through-beam tie rod (5), and then remove the special-shaped metal rod (7), L-shaped fixing clip (24) and the second timber (23). Then remove the beam bottom formwork template (2), the first timber (3) and the aluminum alloy beam bottom horizontal plate (6) in sequence. Finally, remove the disc buckle frame (17). Remove rust and paint the dismantled metal parts, clean and repair the timber and template, and replace the damaged parts in time for easy reuse.

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