Overhanging supporting system and construction method thereof

Abstract

The invention discloses a cantilever supporting system and a construction method thereof, and relates to the technical field of building construction. The overhanging supporting system comprises a wall-attached support, a combined steel beam, a top connecting piece, a vertical supporting rod, a bottom connecting piece, an inclined supporting rod, a steel pipe connecting piece, a steel pipe, a longitudinal combined steel beam, a wood keel, a connecting screw rod, a connecting pulling piece, an adjustable base, a heavy load combined support, an adjustable bracket, a formwork and a handrail. According to the overhanging supporting system and the construction method thereof, the defects that overhanging steel beams are complex in construction, slow in assembly and disassembly, large in safety risk, high in construction cost, limited in application range and the like are overcome, the construction problem of a scaffold on the periphery of a wall is solved, holes do not need to be reserved in a shear wall for installing the steel beams, and the later outer wall water seepage risk is reduced. All components of the overhanging supporting system are standard steel components, the repeated utilization rate is high, and storage and transportation are convenient.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a cantilever support system and a construction method thereof. Background Art

[0002] With the rapid development of my country's economy, the continuous application of new processes, technologies and materials, there are more and more super-high-rise buildings. In order to pursue novel and beautiful facades, steel structures have the advantages of high strength, light weight and high rigidity, and steel structures are often used as roof structures. However, the construction of eaves steel structures is very dangerous and requires an operating platform for workers. The traditional operating platform is to use cantilever scaffolding. When constructing the main structure, U-bolts need to be reserved on the floor slab. When encountering shear walls, openings need to be reserved for the later installation of I-beams. However, it is difficult to seal them later and there is a greater risk of water seepage. It is not suitable for shear wall systems with compact space layout, and its scope of use is limited. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the present invention provides a cantilever support system to solve the problems existing in the prior art.

[0005] (II) Technical solution

[0006] To achieve the above purpose, the present invention is implemented through the following technical solutions: a cantilever support system, including a wall-attached support, a composite steel beam, a top connector, a vertical support rod, a bottom connector, a diagonal support rod, a steel pipe connector, a steel pipe, a longitudinal composite steel beam, a wooden keel, a connecting screw, a connecting pull tab, an adjustable base, a heavy-load composite support, an adjustable support, a template, and a railing;

[0007] The wall-attached support is composed of a support base, a base connecting rod, a conical bolt sleeve, and a connecting rod;

[0008] The composite steel beam is composed of U120 steel beam, M20 high-strength bolts, φ26 bolt sleeves, and connecting plates;

[0009] The railing is composed of a railing connecting base, a railing upright, a railing hook, a railing horizontal rod, a skirting board and a skirting board connecting rod.

[0010] Before pouring concrete, the support base, support connecting rod and conical bolt sleeve are embedded in advance. The end of the composite steel beam is provided with an end cover plate, which is connected to the conical sleeve through a connecting rod, a pin and a cotter pin. The top connector is connected to the composite steel beam and the vertical support rod through an M20 high-strength bolt. A bottom connector is provided at the bottom of the vertical support rod. A horizontal support rod is provided at the bottom connector. After installation, the shear wall is tightened to adjust the verticality of the vertical support rod of the cantilever support. One end of the diagonal support rod is connected to the vertical support rod through a bottom connector and an M20 high-strength bolt, and the other end is connected to the composite steel beam through an M20 high-strength bolt. A steel pipe connector is provided on the inside of the diagonal support rod for installing and connecting steel pipes to connect each cantilever support system into a whole. The longitudinal composite steel beam is connected to the composite steel beam of the cantilever support system through a connecting screw to prevent the longitudinal composite steel beam from sliding. The wooden keel is connected to the longitudinal composite steel beam through a connecting pull tab. A wooden formwork is laid on the upper part of the longitudinal composite steel beam to form an operating platform.

[0011] An adjustable base is installed on the operating wooden keel. A reserved hole is provided on the bottom plate of the adjustable base for installing U-shaped connectors to connect the wooden keel, install the heavy-load combined support frame, adjustable support, longitudinal and transverse wooden keels and templates, and form an upper operating platform for hoisting the roof steel truss construction;

[0012] It effectively overcomes the defects of cantilever steel beams, such as complex construction, slow installation and disassembly, high safety risks, high construction costs, and limited scope of application. It solves the construction difficulties of scaffolding outside the wall. There is no need to reserve holes in the shear wall for installing steel beams, which reduces the risk of water seepage in the exterior wall in the later stage. All components of the cantilever support system are standard steel components with a high reuse rate, which is convenient for storage and transportation, saving construction costs, and having significant technical and economic benefits.

[0013] Preferably, each of the three cantilever support systems is connected into a hoisting unit using longitudinal composite steel beams and steel pipes, and hoisted as a whole in batches.

[0014] A construction method of a cantilever support system, the specific operations are as follows:

[0015] After the shear wall reinforcement is tied, the embedded support base, base connecting rod and conical bolt sleeve are located according to the measurement, and they are firmly tied to the steel bars with wire, the shear wall formwork is installed, and concrete is poured.

[0016] Assemble the cantilever support frame, connect the composite steel beam to the vertical support rod through the top connector and M20 high-strength bolts, connect the bottom connector to the bottom of the vertical support rod through M20 high-strength bolts, set a horizontal support rod on one side of the bottom connector, and tighten the shear wall after installation to adjust the verticality of the cantilever support vertical support rod. One end of the diagonal support rod is connected to the vertical support rod through the bottom connector and M20 high-strength bolts, and the other end is connected to the composite steel beam through M20 high-strength bolts.

[0017] Install the bottom operating platform. According to the above method, assemble other cantilever support frames. Connect every 3 cantilever support frames into a lifting unit. Install the longitudinal composite steel beam. Connect the longitudinal composite steel beam to the composite steel beam through connecting screws. Install wooden keels on the top of the longitudinal composite steel beams. The wooden keels and the longitudinal composite steel beams are firmly connected through connecting pull tabs. Then lay wooden formwork on the wooden keels to form the bottom operating platform. Set steel pipe connectors on the oblique struts. Use steel pipes to connect the cantilever support frames into a whole to increase their stability.

[0018] Install the guardrail of the bottom operating platform. The guardrail connecting base is connected to the wooden keel through a pin shaft. The guardrail upright is connected to the guardrail connecting base by a socket method. A guardrail hook is set on the outside of the guardrail upright, a guardrail horizontal bar is set inside the guardrail hook, and a skirting board is set at the bottom. The skirting board and the guardrail hook are firmly connected through the skirting board connecting rod.

[0019] For the hoisting cantilever support system, a steel beam end cover plate is set at the end of the composite steel beam, which is connected with the conical bolt sleeve through the connecting rod, and the pin shaft and the cotter pin are inserted to prevent the connecting rod from loosening.

[0020] Set up a heavy-load combined support frame, set reserved holes on the adjustable base bottom plate, connect it to the wooden keel with U-bolts, and install the heavy-load combined support frame, adjustable support, longitudinal and transverse wooden keels, formwork and top-level operating platform guardrails in sequence.

[0021] (III) Beneficial effects

[0022] The present invention provides a cantilever support system having the following beneficial effects:

[0023] The cantilever support system and its construction method overcome the defects of cantilever steel beams, such as complex construction, slow installation and disassembly, high safety risks, high construction costs, and limited scope of application. It solves the construction difficulties of scaffolding outside the wall, and does not require reserved holes on the shear wall for installing steel beams, reducing the risk of water seepage in the exterior wall in the later stage. In addition, all components of the cantilever support system are standard steel components, with high reuse rate, easy storage and transportation, saving construction costs, and significant technical and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a working principle diagram of the present invention.

[0025] Figure 2 This is a schematic diagram of the wall support connection.

[0026] Figure 3 It is a schematic diagram of a composite steel beam.

[0027] Figure 4 It is an AA cross-section view.

[0028] Figure 5 It is a schematic diagram of the vertical support rod.

[0029] Figure 6 It is a schematic diagram of the diagonal brace.

[0030] Figure 7 is a schematic diagram of an adjustable base.

[0031] Figure 8 Schematic diagram of the connecting screw.

[0032] Fig. 9 Schematic diagram of connecting pull tabs.

[0033] Fig.10 This is a schematic diagram of a wooden keel.

[0034] Fig.11 It is a schematic diagram of the railing.

[0035] In the figure: 1. Support base; 2. Base connecting rod; 3. Conical bolt sleeve; 4. Connecting rod; 5. Steel beam end cover plate; 6. Pin; 7. Split pin; 8. Combined steel beam; 9. U120 steel beam; 10. M20 high-strength bolts and φ26 bolt sleeves; 11. Connecting plate; 12. Top connecting piece; 13. Vertical support rod; 14. M20 high-strength bolts; 15. Bottom connecting piece; 16. Diagonal support rod; 17. Steel pipe connecting piece; 18. Steel pipe; 19. Longitudinal combined steel beam; 20. Wooden keel; 21. Connecting screw; 22. Connecting pull tab; 23. Adjustable base; 24. Heavy-load combined support frame; 25. Adjustable support; 26. Formwork; 27. Railing connecting base; 28. Railing uprights; 29. ​​Railing hook; 30. Railing horizontal bar; 32. Skirting board; 33. Skirting board connecting rod. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-11 The present invention provides a technical solution: a cantilever support system, including a wall-attached support, a composite steel beam, a top connector, a vertical support rod, a bottom connector, a diagonal support rod, a steel pipe connector, a steel pipe, a longitudinal composite steel beam, a wooden keel, a connecting screw, a connecting pull tab, an adjustable base, a heavy-load composite support, an adjustable support, a template, and a railing;

[0038] The wall-attached support is composed of a support base, a base connecting rod, a conical bolt sleeve, and a connecting rod;

[0039] The composite steel beam is composed of U120 steel beam, M20 high-strength bolts, φ26 bolt sleeves, and connecting plates;

[0040] The railing is composed of a railing connecting base, a railing upright, a railing hook, a railing horizontal rod, a skirting board and a skirting board connecting rod.

[0041] Before pouring concrete, the support base, support connecting rod and conical bolt sleeve are embedded in advance. The end of the composite steel beam is provided with an end cover plate, which is connected to the conical sleeve through a connecting rod, a pin and a cotter pin. The top connector is connected to the composite steel beam and the vertical support rod through an M20 high-strength bolt. A bottom connector is provided at the bottom of the vertical support rod. A horizontal support rod is provided at the bottom connector. After installation, the shear wall is tightened to adjust the verticality of the vertical support rod of the cantilever support. One end of the diagonal support rod is connected to the vertical support rod through a bottom connector and an M20 high-strength bolt, and the other end is connected to the composite steel beam through an M20 high-strength bolt. A steel pipe connector is provided on the inside of the diagonal support rod for installing and connecting steel pipes to connect each cantilever support system into a whole. The longitudinal composite steel beam is connected to the composite steel beam of the cantilever support system through a connecting screw to prevent the longitudinal composite steel beam from sliding. The wooden keel is connected to the longitudinal composite steel beam through a connecting pull tab. A wooden formwork is laid on the upper part of the longitudinal composite steel beam to form an operating platform.

[0042] An adjustable base is installed on the operating wooden keel. A reserved hole is provided on the bottom plate of the adjustable base for installing U-shaped connectors to connect the wooden keel, install the heavy-load combined support frame, adjustable support, longitudinal and transverse wooden keels and templates, and form an upper operating platform for hoisting the roof steel truss construction;

[0043] It effectively overcomes the defects of cantilever steel beams, such as complex construction, slow installation and disassembly, high safety risks, high construction costs, and limited scope of application. It solves the construction difficulties of scaffolding outside the wall. There is no need to reserve holes in the shear wall for installing steel beams, which reduces the risk of water seepage in the exterior wall in the later stage. All components of the cantilever support system are standard steel components with a high reuse rate, which is convenient for storage and transportation, saving construction costs, and having significant technical and economic benefits.

[0044] Each of the three cantilever support systems is connected into a hoisting unit by longitudinal composite steel beams and steel pipes, and hoisted as a whole in batches.

[0045] A construction method of a cantilever support system, the specific operations are as follows:

[0046] After the shear wall reinforcement is tied, the embedded support base, base connecting rod and conical bolt sleeve are located according to the measurement, and they are firmly tied to the steel bars with wire, the shear wall formwork is installed, and concrete is poured.

[0047] Assemble the cantilever support frame, connect the composite steel beam to the vertical support rod through the top connector and M20 high-strength bolts, connect the bottom connector to the bottom of the vertical support rod through M20 high-strength bolts, set a horizontal support rod on one side of the bottom connector, and tighten the shear wall after installation to adjust the verticality of the cantilever support vertical support rod. One end of the diagonal support rod is connected to the vertical support rod through the bottom connector and M20 high-strength bolts, and the other end is connected to the composite steel beam through M20 high-strength bolts.

[0048] Install the bottom operating platform. According to the above method, assemble other cantilever support frames. Connect every 3 cantilever support frames into a lifting unit. Install the longitudinal composite steel beam. Connect the longitudinal composite steel beam to the composite steel beam through connecting screws. Install wooden keels on the top of the longitudinal composite steel beams. The wooden keels and the longitudinal composite steel beams are firmly connected through connecting pull tabs. Then lay wooden formwork on the wooden keels to form the bottom operating platform. Set steel pipe connectors on the oblique struts. Use steel pipes to connect the cantilever support frames into a whole to increase their stability.

[0049] Install the guardrail of the bottom operating platform. The guardrail connecting base is connected to the wooden keel through a pin shaft. The guardrail upright is connected to the guardrail connecting base by a socket method. A guardrail hook is set on the outside of the guardrail upright, a guardrail horizontal bar is set inside the guardrail hook, and a skirting board is set at the bottom. The skirting board and the guardrail hook are firmly connected through the skirting board connecting rod.

[0050] For the hoisting cantilever support system, a steel beam end cover plate is set at the end of the composite steel beam, which is connected with the conical bolt sleeve through the connecting rod, and the pin shaft and the cotter pin are inserted to prevent the connecting rod from loosening.

[0051] Set up a heavy-load combined support frame, set reserved holes on the adjustable base bottom plate, connect it to the wooden keel with U-bolts, and install the heavy-load combined support frame, adjustable support, longitudinal and transverse wooden keels, formwork and top-level operating platform guardrails in sequence.

[0052] Example:

[0053] Depend on Figure 1-11 It can be seen that the installation steps of a cantilever support system are as follows:

[0054] After the shear wall reinforcement is tied, the embedded support base ①, base connecting rod ② and tapered bolt sleeve ③ are located according to the measurement, and they are firmly tied with wire and reinforcement. The shear wall formwork is installed and concrete is poured.

[0055] Assemble the cantilever support frame, combine the steel beam⑧ and the vertical support rod Through the top connector M20 high strength bolts Make connections, bottom connector Through M20 high strength bolts With vertical support rod Connect at the bottom. A horizontal support rod is set on one side of the bottom connector. After installation, it is pressed against the shear wall and used to adjust the vertical support rod of the cantilever support. Verticality. Diagonal braces One end through the bottom connector M20 high strength bolts With vertical support rod Connect with M20 high strength bolt at one end Connect with composite steel beam⑧.

[0056] Install the bottom operating platform, assemble other cantilever support frames according to the above method, connect every 3 cantilever support frames into a hoisting unit, and install the longitudinal composite steel beam Longitudinal composite steel beam By connecting screw Connect with the composite steel beam⑧, and connect the composite steel beam in the longitudinal direction Top installation of wooden keel Wooden keel Combined with longitudinal steel beam By connecting the pull tab The connection is firm, and then on the wooden keel Lay wooden formwork on Then form the bottom operating platform, the oblique support rod Set up steel pipe connectors Steel pipe Connect each cantilever support frame into a whole to increase its stability.

[0057] Install the bottom operating platform guardrail and connect the guardrail to the base With wooden keel Connected by pin ⑥, railing uprights Connecting base with railing The railing is connected by socket and splice. Railing hooks are installed on the outside Hook on railing Internal railing horizontal bar Set the skirting board at the bottom Skirting Boards Hook to railing Connecting rod via skirting board The connection is secure.

[0058] For the cantilever support system, a steel beam end sealing plate ⑤ is provided at the end of the composite steel beam ⑧, which is connected with the conical bolt sleeve ③ through the connecting rod ④, and a pin shaft ⑥ and a cotter pin ⑦ are inserted to prevent the connecting rod ④ from loosening.

[0059] Set up heavy-duty combined support frame with adjustable base The bottom plate is equipped with reserved holes, and U-bolts and wooden keels are used. Connect and install the heavy-load combined support frame in sequence Adjustable support Vertical and horizontal wooden keel template And top operating platform protective railings.

[0060] In summary, the cantilever support system and its construction method overcome the defects of cantilever steel beams, such as complex construction, slow installation and disassembly, high safety risks, high construction costs, and limited scope of application. It solves the construction difficulties of scaffolding outside the wall, and does not require reserved holes on the shear wall for installing steel beams, reducing the risk of water seepage in the exterior wall in the later stage. In addition, all components of the cantilever support system are standard steel components, with high reuse rates, easy storage and transportation, saving construction costs, and significant technical and economic benefits.

[0061] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cantilever support system, characterized in that: It includes wall-mounted supports, composite steel beams, top connectors, vertical support rods, bottom connectors, diagonal support rods, steel pipe connectors, steel pipes, longitudinal composite steel beams, wooden keels, connecting screws, connecting pull tabs, adjustable bases, heavy-load composite supports, adjustable braces, templates, and railings. The wall-attached support is composed of a support base, a base connecting rod, a conical bolt sleeve, and a connecting rod; The composite steel beam is composed of U120 steel beam, M20 high-strength bolts, φ26 bolt sleeves, and connecting plates; The railing is composed of a railing connecting base, a railing upright, a railing hook, a railing horizontal rod, a skirting board and a skirting board connecting rod. Before pouring concrete, the support base, support connecting rod and conical bolt sleeve are embedded in advance. The end of the composite steel beam is provided with an end cover plate, which is connected to the conical sleeve through a connecting rod, a pin and a cotter pin. The top connector is connected to the composite steel beam and the vertical support rod through an M20 high-strength bolt. A bottom connector is provided at the bottom of the vertical support rod. A horizontal support rod is provided at the bottom connector. After installation, the shear wall is tightened to adjust the verticality of the vertical support rod of the cantilever support. One end of the diagonal support rod is connected to the vertical support rod through a bottom connector and an M20 high-strength bolt, and the other end is connected to the composite steel beam through an M20 high-strength bolt. A steel pipe connector is provided on the inside of the diagonal support rod for installing and connecting steel pipes to connect each cantilever support system into a whole. The longitudinal composite steel beam is connected to the composite steel beam of the cantilever support system through a connecting screw to prevent the longitudinal composite steel beam from sliding. The wooden keel is connected to the longitudinal composite steel beam through a connecting pull tab. A wooden formwork is laid on the upper part of the longitudinal composite steel beam to form an operating platform. An adjustable base is installed on the operating wooden keel. A reserved hole is provided on the bottom plate of the adjustable base for installing U-shaped connectors to connect the wooden keel, install the heavy-load combined support frame, adjustable support, longitudinal and transverse wooden keels and templates, and form an upper operating platform for hoisting the roof steel truss construction; It effectively overcomes the defects of cantilever steel beams, such as complex construction, slow installation and disassembly, high safety risks, high construction costs, and limited scope of application. It solves the construction difficulties of scaffolding outside the wall. There is no need to reserve holes in the shear wall for installing steel beams, which reduces the risk of water seepage in the exterior wall in the later stage. All components of the cantilever support system are standard steel components with a high reuse rate, which is convenient for storage and transportation, saving construction costs, and having significant technical and economic benefits.

2. The cantilever support system according to claim 1, characterized in that: Each of the three cantilever support systems is connected into a hoisting unit by longitudinal composite steel beams and steel pipes, and hoisted as a whole in batches.

3. A construction method for a cantilever support system, characterized in that: The specific operations are as follows: After the shear wall reinforcement is tied, the embedded support base, base connecting rod and conical bolt sleeve are located according to the measurement, and they are firmly tied to the steel bars with wire, the shear wall formwork is installed, and concrete is poured. Assemble the cantilever support frame, connect the composite steel beam to the vertical support rod through the top connector and M20 high-strength bolts, connect the bottom connector to the bottom of the vertical support rod through M20 high-strength bolts, set a horizontal support rod on one side of the bottom connector, and tighten the shear wall after installation to adjust the verticality of the cantilever support vertical support rod. One end of the diagonal support rod is connected to the vertical support rod through the bottom connector and M20 high-strength bolts, and the other end is connected to the composite steel beam through M20 high-strength bolts. Install the bottom operating platform. According to the above method, assemble other cantilever support frames. Connect every 3 cantilever support frames into a lifting unit. Install the longitudinal composite steel beam. Connect the longitudinal composite steel beam to the composite steel beam through connecting screws. Install wooden keels on the top of the longitudinal composite steel beams. The wooden keels and the longitudinal composite steel beams are firmly connected through connecting pull tabs. Then lay wooden formwork on the wooden keels to form the bottom operating platform. Set steel pipe connectors on the oblique struts. Use steel pipes to connect the cantilever support frames into a whole to increase their stability. Install the guardrail of the bottom operating platform. The guardrail connecting base is connected to the wooden keel through a pin shaft. The guardrail upright is connected to the guardrail connecting base by a socket method. A guardrail hook is set on the outside of the guardrail upright, a guardrail horizontal bar is set inside the guardrail hook, and a skirting board is set at the bottom. The skirting board and the guardrail hook are firmly connected through the skirting board connecting rod. For the hoisting cantilever support system, a steel beam end cover plate is set at the end of the composite steel beam, which is connected with the conical bolt sleeve through the connecting rod, and the pin shaft and the cotter pin are inserted to prevent the connecting rod from loosening. Set up a heavy-load combined support frame, set reserved holes on the adjustable base bottom plate, connect it to the wooden keel with U-bolts, and install the heavy-load combined support frame, adjustable support, longitudinal and transverse wooden keels, formwork and top-level operating platform guardrails in sequence.

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