Turnbuckle overhanging scaffold

Abstract

The utility model discloses a turn buckle overhanging scaffold, which relates to the technical field of building construction and comprises an overhanging main beam, a scaffold body structure and a pull rod assembly, the overhanging main beam comprises I-shaped steel, one end of the I-shaped steel is anchored on an overhanging layer through a high-strength bolt, the other end of the I-shaped steel is provided with a lifting lug plate, and the pull rod assembly comprises a turn buckle and a steel pull rod. The steel pull rods are connected with the lifting lug plates and the pull rod layer embedded lifting rings through turn buckles to form an adjustable triangular stress system, one end of the frame body structure is erected on the triangular stress system, and the other end of the frame body structure is connected with a wall through the wall connecting piece. The cantilever main beam, the pull rod assembly and the frame body structure form an adjustable triangular stress system, dynamic adjustment of the length of the pull rod and balanced load distribution are achieved through thread adjustment of the turn buckles, and the anti-overturning capacity and the anti-fatigue performance of the cantilever structure are improved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a turnbuckle cantilever scaffold. Background Technology

[0002] In the modern construction industry, with the continuous increase in building height and the growing complexity of architectural shapes, the demand for external scaffolding is also increasing. As an indispensable temporary support and working platform structure in the construction process, the performance and safety of external scaffolding directly affect the lives of construction workers and the smooth progress of the project. Cantilevered scaffolding, because it can provide a working platform for exterior facade construction without occupying the building's internal space, is widely used in the construction of high-rise buildings and some special building structures.

[0003] The connection methods between cantilever beams and the main structure of traditional cantilever scaffolding often have shortcomings. For example, some methods that use simple pre-embedded bolts or welding connections are prone to loosening, deformation, or even breakage under long-term construction loads and external forces such as wind loads and seismic loads. This not only affects the overall stability of the scaffolding but may also lead to safety accidents.

[0004] When conducting construction in areas with strong winds, the wind resistance of existing cantilevered scaffolding often fails to meet requirements. Under wind loads, traditional structures may experience significant swaying and deformation due to limitations in their structural form and connection methods. This swaying and deformation not only affects the normal work of construction workers but may also subject scaffolding components to additional fatigue loads, shortening their service life and increasing safety hazards. Utility Model Content

[0005] The purpose of this utility model is to provide a turnbuckle cantilever scaffold. The device consists of a cantilever main beam, a frame structure, and a tie rod assembly. One end of the cantilever main beam is anchored to the cantilever layer with high-strength bolts, and the other end is equipped with a lifting lug plate. The tie rod assembly connects the steel tie rods to the lifting lug plate and the pre-embedded lifting rings via turnbuckles, forming an adjustable triangular force-bearing system. This system allows for adjustment of the tie rod length and distribution of loads. One end of the frame structure is supported by the triangular system, and the other end is connected to the wall via wall ties, forming a double-stabilized structure. This effectively transfers loads, enhances anti-overturning capacity, and ensures construction safety and platform stability.

[0006] This utility model is achieved through the following technical solution:

[0007] A turnbuckle cantilever scaffold includes a cantilever main beam, a frame structure, and a tie rod assembly. The cantilever main beam includes an I-beam, one end of which is anchored to the cantilever layer by a high-strength bolt, and the other end of which is provided with a lifting lug plate.

[0008] The tie rod assembly includes turnbuckles and steel tie rods. The steel tie rods are connected to the lug plate and the pre-embedded lifting rings in the tie rod layer via the turnbuckles, forming an adjustable triangular force-bearing system.

[0009] One end of the frame structure is supported on the triangular force-bearing system, and the other end of the frame structure is connected to the wall through a wall tie.

[0010] In this scheme, one end of the cantilever main beam is anchored to the main structural beam of the cantilever layer using high-strength bolts, while the other end is equipped with a lug plate to provide a tie rod connection node, ensuring the anchoring strength and stability of the cantilever foundation. The tie rod assembly connects the steel tie rod to the lug plate and the upper-level pre-embedded lifting ring through turnbuckles, forming an adjustable triangular force system. The length of the tie rod can be adjusted by loosening or loosening the turnbuckles, realizing dynamic adjustment of the stress state of the cantilever beam, dispersing the effects of construction loads and wind loads on the cantilever structure, and improving the overall anti-overturning capacity. One end of the scaffold structure is supported by the triangular force system, making the cantilever beam and tie rod form a stable support point, while the other end is rigidly connected to the wall through wall ties, forming a dual stable structure of "cantilever support + rigid tie". This not only utilizes the triangular mechanical principle to enhance the stiffness of the cantilever end, but also effectively transfers the horizontal load of the scaffold to the main structure through the wall ties, ensuring that the scaffold remains stable when subjected to vertical and horizontal loads during construction, preventing overturning, instability and deformation.

[0011] As a further solution for cantilevered scaffolding, the anchorage length of the cantilevered main beam is not less than 1.25 times the cantilever length. By increasing the anchorage moment, the overturning moment generated by the load at the cantilever end is resisted, thus forming a mechanical balance. There are no less than two anchor bolts. By distributing the force through multi-point anchoring, the excessive force at a single point is avoided, which may lead to damage to the bolts or concrete structure. At the same time, the connection stiffness between the main beam and the main structure is enhanced, preventing the main beam from shifting or rotating due to insufficient anchorage.

[0012] As a further solution for cantilever scaffolding, the I-beams are connected to the cantilevered layer through beam end plates. The beam end plates serve as load-bearing transition components, increasing the contact area between the I-beams and the main structure. This allows the anchoring force of the high-strength bolts to be evenly transferred to the cantilevered concrete structure through the beam end plates, preventing the I-beams from being directly subjected to force, which could lead to localized stress concentration.

[0013] As a further embodiment of the cantilever scaffolding, the turnbuckle includes a locking end and an elastic element;

[0014] The locking end is hollow inside, and its two ends are respectively connected to the steel tie rod by threads. The hollow locking end is connected to the steel tie rod by threads, which makes it easy to adjust the length of the tie rod by rotation to adapt to the stress requirements under different cantilever conditions. This ensures the installation accuracy and adjustable preload of the triangular force system. The elastic element is located inside the locking end and provides elasticity to the steel tie rods on both sides. It can buffer the stress change of the tie rod caused by construction load or wind load, absorb vibration energy, and reduce the risk of tie rod loosening or breakage caused by load fluctuation.

[0015] As a further solution for cantilever scaffolding, the elastic element is a spring. The elastic energy storage function of the spring can balance the internal forces of the steel tie rods on both sides in real time, reduce the risk of loosening of the turnbuckle locking end, improve the vibration resistance of the connection node, and enable the cantilever scaffolding to maintain force balance under dynamic working conditions.

[0016] As a further embodiment of the cantilevered scaffolding, the scaffolding structure includes uprights with a longitudinal spacing of 1.5m, a transverse spacing of 0.8-1.2m, and a step spacing of 1.8m. By forming a standardized grid structure, the overall rigidity, stability, and ease of construction of the scaffolding are ensured, meeting the requirements of the specifications for load-bearing capacity and safety.

[0017] As a further solution for cantilevered scaffolding, continuous scissor bracing is installed on the outer side of the scaffold structure. The angle between the scissor bracing and the horizontal plane is 45°-60°. The scissor bracing is connected to the scaffold structure by lap joints with an overlap length of not less than 1m and is fixed with no less than 3 swivel couplers to ensure reliable connection of the scissor bracing members and avoid stress concentration at the joints that could lead to breakage. Through continuous arrangement and rigid connection, the uprights and horizontal bars of the scaffold are connected into a whole, enhancing the overall structural integrity and preventing local instability from causing overall collapse.

[0018] As a further solution for cantilever scaffolding, the wall tie has an angle of no more than 15° with the horizontal plane, forming a rigid tie system to ensure the effective transmission of horizontal loads and structural stability of the scaffold. The smaller angle allows the wall tie to mainly bear the horizontal tension or pressure, reducing the adverse effects of the vertical component force on the wall caused by the excessive angle.

[0019] As a further solution for cantilevered scaffolding, the wall ties include short steel pipes, embedded pipes, and right-angle couplers;

[0020] One end of the embedded pipe is connected to the frame structure via the right-angle fastener, and the other end of the embedded pipe passes through the wall and is fixed to the wall via the short steel pipe. The short steel pipes are arranged in pairs and located at both ends of the wall. The arrangement of the paired short steel pipes enhances the pull-out and shear resistance of the connection node, prevents the wall tie from shifting or falling off due to uneven force, and forms a stable force transmission path of "wall-embedded pipe-short steel pipe-frame".

[0021] As a further solution for cantilever scaffolding, wedges are also connected between the short steel pipe and the wall. The elastic compression of the wedges can adapt to the unevenness of the wall surface, so that the short steel pipe fits tightly with the wall, improving the pull-out resistance and shear bearing capacity of the connection node, and preventing the wall tie from slipping due to vibration or load fluctuation.

[0022] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0023] This utility model forms an adjustable triangular force system by means of a cantilevered main beam, tie rod assembly and frame structure. By using the thread adjustment of turnbuckle and stress buffering of elastic elements, the length of the tie rod can be dynamically adjusted and the load can be evenly distributed, thereby improving the overturning resistance and fatigue resistance of the cantilever structure. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a plan view of the double tie rod of this utility model;

[0027] Figure 3 This is a diagram showing the nodes connecting I-beams to a building.

[0028] Figure 4 This is a node diagram showing the connection between the cantilevered main beam and the building structure.

[0029] Figure 5 Diagram of steel tie rod connection nodes;

[0030] Figure 6 This is a schematic diagram of the wall tie structure;

[0031] Figure 7 This is a schematic diagram of the elevation structure of the frame structure;

[0032] Figure 8 This is a schematic diagram of a turnbuckle structure.

[0033] The attached diagram shows the markings and corresponding component names:

[0034] Cantilever main beam, 11-beam end plate, 12-I-beam, 13-lifting lug plate, 14-positioning pile, 15-high-strength bolt, 16-welded end; Frame structure, 21-short steel pipe, 22-wedge, 23-embedded pipe, 25-longitudinal horizontal bar, 24-right-angle coupler, 26-safety mesh net, 28-upright pole, 29-scissor brace; Tie rod assembly, 32-embedded part, 33-double-eared pull ring, 34-steel tie rod, 35-turn bolt, 36-pin, 37-locking end, 38-elastic element. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0036] Example 1

[0037] This embodiment 1 provides a turnbuckle cantilever scaffold, such as Figure 1 As shown, it includes a cantilever main beam 1, a frame structure 2, and a tie rod assembly 3;

[0038] Among them, such as Figures 3-5 As shown, the cantilever main beam 1 includes an I-beam 12 and a beam end plate 11. The I-beam 11 is a No. 16 I-beam and serves as the cantilever main beam. One end of the I-beam 11 is a welded end 16, which is welded to the beam end plate 11 through the welded end 16 using a bevel weld with a weld width of 5mm. Then, no less than two bolt holes are opened on the beam end plate 11, and high-strength bolts 15 are used to anchor the I-beam 12 and the beam end plate 11 to the cantilever layer through the bolt holes. The length of the anchoring end is not less than 1.25 times the cantilever length. By increasing the moment of the anchoring section, the overturning moment generated by the load at the cantilever end is resisted, thus forming a mechanical balance. The other end of the I-beam 11 is connected to two lifting lugs 13 for connecting the tie rod assembly 3.

[0039] Among them, such as Figure 2 As shown, the above-mentioned tie rod assembly 3 includes a pair of turnbuckles 35 and a pair of steel tie rods 34. The steel tie rods 34 are connected to the lug plate 13 and the pre-embedded lifting ring of the tie rod layer respectively through the turnbuckles 35, forming an adjustable triangular force system. In this embodiment, a pre-embedded part 32 is embedded in the tie rod layer. The free end of the pre-embedded part 32 is connected to the double lug ring 33. One end of the steel tie rod 34 is connected to the double lug ring 33, and the other end of the steel tie rod 34 is connected to the lug plate 13 and locked by the pin 36, thereby stabilizing the triangular force system.

[0040] Among them, such as Figures 6-7 As shown, one end of the frame structure 2 is supported on the triangular load-bearing system by positioning piles 14, and the other end of the frame structure 2 is connected to the wall by wall ties.

[0041] Specifically, the frame structure 2 includes uprights 28, which have a longitudinal spacing of 1.5m, a transverse spacing of 0.8-1.2m, and a step spacing of 1.8m. By forming a standardized grid structure, and laying a safety mesh net 26 on the grid structure, the overall rigidity, stability, and ease of construction of the frame are ensured. At the same time, after forming the standardized grid structure, continuous scissor bracing 29 is set on the outside of the frame structure. The angle between the scissor bracing 29 and the horizontal plane is 45°-60°. The scissor bracing 29 is connected to the grid structure by an overlapping connection with an overlap length of not less than 1m, and is fixed with not less than 3 swivel couplers to ensure reliable connection of the scissor bracing members.

[0042] Please refer to the following: Figure 6 As shown, the wall tie has an angle of no more than 15° with the horizontal plane, forming a rigid tie system. Specifically, the wall tie includes a short steel pipe 21, a pre-embedded pipe 23, and a right-angle fastener 24. One end of the pre-embedded pipe 23 is connected to the longitudinal horizontal bar 25 through the right-angle fastener 24, thereby connecting with the grid structure. The other end of the pre-embedded pipe 23 passes through the wall and is fixed to the wall through the short steel pipe 21. The short steel pipes 21 are set in pairs and located at both ends of the wall to form a "pull-off" structure, thereby enhancing the pull-out and shear resistance of the connection node, preventing the wall tie from shifting or falling off due to uneven force, and forming a stable force transmission path of "wall-pre-embedded pipe-short steel pipe-frame".

[0043] In some embodiments, to enhance the pull-out resistance and shear bearing capacity of the connection node, a wedge 22 is also connected between the short steel pipe 21 and the wall. The elastic compression of the wedge 22 can adapt to the unevenness of the wall surface, so that the short steel pipe 21 fits tightly against the wall.

[0044] Example 2

[0045] This embodiment 2 provides a turnbuckle cantilever scaffolding based on embodiment 1. Please refer to [link / reference]. Figure 8 As shown, to reduce the risk of loosening or breakage of the tie rod due to load fluctuations, the turnbuckle 35 includes a locking end 37 and an elastic element 38. The locking end 37 is hollow inside, and its two ends are respectively connected to the steel tie rod 34 by threads. The hollow locking end 37 is connected to the steel tie rod 34 by threads, which facilitates the adjustment of the tie rod length by rotation to adapt to the stress requirements under different cantilever conditions, and ensures the installation accuracy and adjustable preload of the triangular force system. The elastic element 38 is located inside the locking end 37 and provides elasticity to the steel tie rods 34 located on both sides, which can buffer the sudden stress change of the tie rod caused by construction load or wind load and absorb vibration energy.

[0046] In this embodiment, the elastic element 38 can be a spring, a metal bellows, or a disc spring, or other components with elastic force.

[0047] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A turnbuckle cantilever scaffold, comprising a cantilever main beam (1), a frame structure (2), and a tie rod assembly (3), characterized in that: The cantilever main beam (1) includes an I-beam (12), one end of which is anchored to the cantilever layer by a high-strength bolt (15), and the other end of which is provided with a lug plate (13). The tie rod assembly (3) includes a turnbuckle (35) and a steel tie rod (34). The steel tie rod (34) is connected to the lug plate (13) and the pre-embedded lifting ring of the tie rod layer through the turnbuckle (35) to form an adjustable triangular force system. One end of the frame structure (2) is mounted on the triangular force-bearing system, and the other end of the frame structure is connected to the wall through a wall tie.

2. The turnbuckle cantilever scaffolding according to claim 1, characterized in that, The anchorage length of the cantilever main beam shall not be less than 1.25 times the cantilever length, and there shall be no less than 2 anchor bolts.

3. A turnbuckle cantilever scaffold according to claim 2, characterized in that... The I-beam (12) is connected to the cantilever layer through the beam end plate (11).

4. The turnbuckle cantilever scaffolding according to claim 1, characterized in that, The turnbuckle (35) includes a locking end (37) and an elastic element (38). The locking end (37) is hollow inside and its two ends are respectively connected to the steel pull rod (34) by threads. The elastic element (38) is located inside the locking end (37) and provides elastic force to the steel pull rod (34) located on both sides.

5. A turnbuckle cantilever scaffold according to claim 4, characterized in that, The elastic element (38) is a spring.

6. A turnbuckle cantilever scaffold according to claim 1, characterized in that, The frame structure (2) includes uprights (28), the uprights (28) having a longitudinal spacing of 1.5m, a transverse spacing of 0.8-1.2m, and a step spacing of 1.8m.

7. A turnbuckle cantilever scaffold according to claim 1, characterized in that, The frame structure (2) is provided with continuous scissor bracing (29) on the outside. The angle between the scissor bracing (29) and the horizontal plane is 45°-60°. The scissor bracing (29) is connected to the frame structure (2) by overlapping connection. The overlap length is not less than 1m and it is fixed with not less than 3 swivel fasteners.

8. A turnbuckle cantilever scaffold according to any one of claims 1-7, characterized in that, The wall ties have an angle of no more than 15° with the horizontal plane, forming a rigid tie system.

9. A turnbuckle cantilever scaffold according to claim 8, characterized in that, The wall connection includes a short steel pipe (21), an embedded pipe (23), and a right-angle fastener (24); One end of the pre-embedded pipe (23) is connected to the frame structure (2) through the right-angle fastener, and the other end of the pre-embedded pipe (23) passes through the wall and is fixed to the wall through the short steel pipe (21). The short steel pipe (21) is set in pairs and located at both ends of the wall.

10. A turnbuckle cantilever scaffold according to claim 9, characterized in that, The short steel pipe (21) is also connected to the wall by a wedge (22).

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