High-altitude large-span overhanging structure supporting system
By combining cantilevered frames and supporting scaffolding, the problems of insufficient load-bearing capacity and safety hazards of high-altitude cantilevered structures are solved, achieving efficient and safe construction results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR FOURTH ENG DIV CORP LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-19
AI Technical Summary
Existing technologies for high-altitude cantilever structures suffer from insufficient load-bearing capacity, the need for edge work which poses safety hazards, high material consumption, and labor-intensive installation.
The structure employs cantilevered scaffolding and supporting scaffolding. By combining cantilevered beams, diagonal braces, supporting beams, and reinforcing rods, and using anchoring components to fix the structure inside the building, an efficient support system is formed, avoiding work near the edge.
It improves the load-bearing capacity of the cantilever structure, enhances construction safety, reduces material usage, and improves construction efficiency and safety.
Smart Images
Figure CN224259833U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction equipment technology, and more specifically to a high-altitude, large-span cantilever structure support system. Background Technology
[0002] In recent years, with the rapid development of the construction industry, the facades of high-rise and super high-rise buildings have become increasingly diverse and innovative to meet people's demands for both aesthetics and functionality. With the continuous increase in high-altitude, multi-story, cantilevered spatial structures, how to safely and efficiently complete the construction of such structures has become a key research focus for construction companies, requiring technical research and optimization. In particular, the length and height of high-altitude cantilever structures pose significant construction safety hazards, greatly impacting the acceptance of the cantilever structure and the smooth progress of subsequent construction processes.
[0003] Traditional ground-mounted support structures require a large number of uprights, crossbars, and other materials, especially in high-altitude cantilever structures where the main load-bearing members of the support system are closely spaced, resulting in a large amount of material consumption. On-site erection and dismantling procedures are cumbersome, requiring layer-by-layer construction. The dense arrangement of uprights makes indoor passage and material transportation difficult, affecting construction efficiency, extending the construction period, requiring a large amount of high-altitude installation work, and exposing personnel to dangerous environments near edges, posing significant safety hazards.
[0004] An existing invention patent with application number CN202010225653.5 discloses a diagonal cantilever beam support system for scaffolding. The steel beam is fixed to the outer facade of the floor slab via embedded parts. The upper part is connected to the embedded parts on the outer facade of the upper floor slab via diagonal tie rods, and the lower part is connected to the embedded parts on the outer facade of the lower floor slab via inclined struts, thereby enhancing the supporting load of the steel beam. However, this solution requires construction workers to work near the edge to fix the various structures and embedded parts, resulting in a high operational risk and potential safety hazards.
[0005] Another invention patent with application number CN201610185798.0 discloses a cantilever beam anchoring component and a cantilever beam anchoring construction method in cantilever scaffolding. The cantilever beam anchoring component fixes the inner end of the cantilever beam to the floor slab, and the other end of the cantilever beam is fixed to the upper reinforced concrete beam by a safety rope. This structure has weak cantilever beam load-bearing capacity. To enhance the support, a large number of cantilever beams need to be erected, which is time-consuming, labor-intensive, and consumes a large amount of materials, increasing costs.
[0006] Therefore, how to provide a cantilever beam steel structure support system that is easy to install, has strong load-bearing capacity, and is highly safe is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0007] In view of this, the present invention aims to provide a high-altitude multi-layer cantilever support structure to at least partially solve the technical problems in the prior art, such as insufficient load-bearing capacity or strong load-bearing capacity but requiring edge work, posing safety hazards or consuming a lot of materials, and being laborious and costly to install.
[0008] To achieve the above objectives, the present invention adopts the following technical solution:
[0009] A high-altitude, long-span cantilever structure support system includes a cantilever frame and supporting scaffolding installed on top of the cantilever frame; the cantilever frame includes multiple cantilever support structures arranged in parallel, each cantilever support structure comprising:
[0010] A cantilever beam, one end of which is fixed to the top of the middle floor slab by a first anchoring component, and the other end extends outside the middle floor slab;
[0011] Diagonal brace, one end of which is fixed to the bottom of the other end of the cantilever beam, and the other end is inclined toward the lower floor slab;
[0012] A support beam is provided, one end of which is fixed to the top of the lower floor slab by a second anchoring component, and the other end is connected to the other end of the diagonal brace.
[0013] The beneficial effects that this utility model can achieve are: This cantilever support structure has strong load-bearing capacity, and both ends are connected and fixed by anchoring components inside the building, eliminating the need for edge work and enhancing safety during construction.
[0014] Preferably, the angle between the diagonal brace and the cantilever beam is 45-50°.
[0015] Preferably, it also includes a reinforcing rod, which is arranged perpendicular to the supporting beam and has its upper side fixed to the end of the supporting beam away from the second anchoring component, and its lower side abutting against the outer surface of the lower floor slab.
[0016] Preferably, the connection points between the cantilever beam and the diagonal brace, the connection points between the diagonal brace and the supporting beam, and the connection points between the supporting beam and the reinforcing rod are all welded and fixed.
[0017] Preferably, it also includes an end support assembly, which includes multiple pre-embedded steel bars and wedges. The multiple pre-embedded steel bars are arranged at intervals along a direction perpendicular to the support beam and fixed to the top of the lower floor slab. The wedges are inserted between the multiple pre-embedded steel bars and the end wall of the support beam.
[0018] Preferably, it also includes a cable tie assembly, which includes an upper hanging ring, a cable tie, and a lower hanging ring. The upper hanging ring is fixed to the outer surface of the upper floor slab, and the top end of the cable tie is connected to the upper hanging ring. One end of the lower hanging ring is fixedly connected to the bottom end of the cable tie, and the other end is connected to the side of the cantilever beam away from the first anchoring assembly.
[0019] Preferably, the two ends of the stay cable pass through the upper and lower hanging rings respectively, then fold back and are fixed by fastening rope clamps and observation rope clamps in sequence, and the folded-back end of the stay cable is provided with an observation bend corresponding to the fastening rope clamp and the observation rope clamp.
[0020] Preferably, a pressure beam assembly is also provided, the pressure beam assembly including a lower pressure plate, an upright, and an upper top plate. The lower pressure plate is pressed onto the top of the cantilever beam near the first anchoring assembly. The upright is arranged perpendicular to the cantilever beam, and its bottom is fixedly connected to the lower pressure plate. The bottom of the upper top plate is fixedly connected to the top of the upright, and its top is supported on the bottom surface of the upper floor slab.
[0021] Preferably, the first anchoring assembly includes a plurality of first U-bolt anchors that are spaced apart along the length of the cantilever beam and pre-embedded in the intermediate floor slab.
[0022] Preferably, the second anchoring assembly includes a plurality of second U-bolt anchors that are spaced apart along the length of the supporting beam and pre-embedded in the lower floor slab.
[0023] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a high-altitude, large-span cantilever structure support system, which has the following beneficial effects:
[0024] 1. This structure is lightweight, has strong bending resistance, and high load-bearing capacity, making it suitable for scenarios with large loads.
[0025] 2. This structure can be pre-assembled and then fixed to the floor where it will be installed, improving on-site assembly and disassembly efficiency and enhancing safety. It is especially suitable for standardized construction or reusable use scenarios, greatly improving construction efficiency and ensuring construction safety.
[0026] 3. This structure can be fixed inside the building during installation, eliminating the need for construction outside the building or at the edge, effectively avoiding potential safety hazards. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0028] Figure 1 A schematic diagram of the support system structure for a high-altitude, long-span cantilever structure provided by this utility model.
[0029] Figure 2 A schematic diagram of the cantilever support structure provided by this utility model.
[0030] Figure 3 for Figure 2 Enlarged structural diagram of section A.
[0031] Figure 4 A schematic diagram of the connection structure between the stay cable and the upper hanging ring provided by this utility model.
[0032] In the diagram: 1. Cantilever beam, 2. First anchoring assembly, 3. Diagonal brace, 4. Support beam, 5. Second anchoring assembly, 6. Reinforcing rod, 7. End support assembly, 71. Embedded steel bar, 72. Wedge block, 8. Diagonal tie assembly, 81. Upper lifting ring, 82. Diagonal cable, 821. Observation bend, 83. Fastening rope clamp, 84. Observation rope clamp, 9. Pressure beam assembly, 100. Lower floor slab, 200. Middle floor slab, 300. Upper floor slab. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0036] Please see Figures 1-4 This utility model discloses a high-altitude, long-span cantilever structure support system, including a cantilever frame and supporting scaffolding installed on top of the cantilever frame; characterized in that the cantilever frame includes multiple cantilever support structures arranged longitudinally in parallel, each cantilever support structure including:
[0037] The cantilever beam 1 has one end fixed to the top of the middle floor slab 200 by the first anchoring component 2, and the other end extends to the outside of the middle floor slab 200; scaffold boards and scaffolding are erected on the cantilever beam 1.
[0038] Diagonal brace 3, one end of which is fixed to the bottom of the other end of the cantilever beam 1, and the other end is inclined towards the lower floor slab 100; the diagonal brace 3 serves to support the cantilever beam 1 from below and enhance its load-bearing capacity.
[0039] The supporting beam 4 is fixed at one end to the top of the lower floor slab 100 via the second anchoring component 5, and the other end is connected to the other end of the diagonal brace 3. The supporting beam 4 is installed on the top of the lower floor slab 100, eliminating the need for work outside the building or near the edge, thus improving installation convenience and safety.
[0040] In one specific embodiment, the angle between the diagonal brace 3 and the cantilever beam 1 is 45-50°.
[0041] In one specific embodiment, a reinforcing rod 6 is also included. The reinforcing rod 6 is arranged perpendicularly to the supporting beam 4, and its upper end is fixed to the end of the supporting beam 4 away from the second anchoring component 5. The upper end may also be provided with an inclined surface with the same inclination as the diagonal brace 3 for reinforcement support, and its lower end abuts against the exterior facade of the lower floor slab 100. The cantilever beam 1, diagonal brace 3, supporting beam 4, and reinforcing rod 6 are all made of I-beams. The reinforcing rod 6 forms a right-angle support with the supporting beam 4, which enhances the load-bearing capacity and prevents the supporting beam 4 from slipping laterally.
[0042] In one specific embodiment, the connections between the cantilever beam 1 and the diagonal brace 3, the diagonal brace 3 and the supporting beam 4, and the supporting beam 4 and the reinforcing rod 6 are all fixed by welding. Welding makes the connections less prone to breakage and enhances the supporting force.
[0043] In one specific embodiment, an end support assembly 7 is also included. The end support assembly 7 includes multiple embedded steel bars 71 and wedges 72. The multiple embedded steel bars 71 are arranged longitudinally at intervals and fixed to the top of the lower floor slab 100. The wedges 72 are inserted between the multiple embedded steel bars 71 and the ends of the support beam 4. This strengthens the connection strength of the support beam 4, ensures the support beam 4 is securely installed, and prevents the support beam 4 from slipping.
[0044] In one specific embodiment, a cable tie assembly 8 is also provided. The cable tie assembly 8 includes an upper hanging ring 81, a cable tie 82, and a lower hanging ring. The upper hanging ring 81 is fixed to the outer facade of the upper floor slab 300 by anchor bolts, and the tail end of the anchor bolts is fixed by double nuts. The top end of the cable tie 82 is connected to the upper hanging ring 81. One end of the lower hanging ring is fixedly connected to the bottom end of the cable tie 82, and the other end is connected to the side of the cantilever beam 1 away from the first anchor assembly 2. The other end of the lower hanging ring is preferably fixed to the middle of the portion of the cantilever beam 1 extending to the outer side of the floor slab.
[0045] In one specific embodiment, the two ends of the stay cable 82 pass through the upper hanging ring 81 and the lower hanging ring respectively, then fold back and are fixed by the fastening rope clamp 83 and the observation rope clamp 84 in sequence, and the folded end of the stay cable 82 is provided with an observation bend 821 corresponding to the fastening rope clamp 83 and the observation rope clamp 84.
[0046] In one specific embodiment, a pressure beam assembly 9 is also provided. The pressure beam assembly 9 includes a lower pressure plate, an upright, and an upper top plate. The lower pressure plate is pressed onto the top of the cantilever beam 1 on the side near the first anchoring assembly 2. The upright is arranged perpendicular to the cantilever beam 1, and its bottom is fixedly connected to the lower pressure plate. The bottom of the upper top plate is fixedly connected to the top of the upright, and its top is supported on the bottom surface of the upper floor slab.
[0047] In one specific embodiment, the first anchoring component 2 includes a plurality of first U-bolt anchors pre-embedded in the intermediate floor slab 200 at intervals along the length of the cantilever beam 1. At least two first U-bolt anchors are provided.
[0048] In one specific embodiment, the second anchoring assembly 5 includes a plurality of second U-bolt anchors arranged at intervals along the length of the supporting beam 4 and pre-embedded in the lower floor slab 100. At least two second U-bolt anchors are provided. The first and second U-bolt anchors can be any form of U-bolt anchor in the prior art.
[0049] This utility model's high-altitude cantilever support structure allows for the pre-welding of the cantilever beam 1, diagonal brace 3, support beam 4, and reinforcing rod 6. These components are then hoisted to the installation position using lifting equipment and secured using the first anchoring component 2 and the second anchoring component 5. Once securely fixed, scaffold boards can be laid according to design requirements, the inclined cables 82 can be connected, and the supporting scaffolding can be erected. This structure enhances the load-bearing capacity of the cantilever beams, enabling each beam to withstand several tons of load. This allows for a greater spacing between adjacent cantilever support structures, reducing material consumption, improving erection efficiency, and saving on erection costs.
[0050] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.
[0051] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A high-altitude, long-span cantilever structure support system, comprising a cantilever frame and a supporting scaffold (10) installed on top of the cantilever frame; characterized in that, The cantilever frame includes multiple cantilever support structures arranged in parallel, each cantilever support structure comprising: A cantilever beam (1), one end of which is fixed to the top of the intermediate floor slab (200) by a first anchoring component (2), and the other end extends to the outside of the intermediate floor slab (200); Diagonal brace (3), one end of which is fixed to the bottom of the other end of the cantilever beam (1), and the other end is inclined toward the lower floor slab (100); A support beam (4) is provided, one end of which is fixed to the top of the lower floor slab (100) by a second anchoring component (5), and the other end is connected to the other end of the diagonal brace (3).
2. The high-altitude, long-span cantilever structure support system according to claim 1, characterized in that, The angle between the diagonal brace (3) and the cantilever beam (1) is 45-50°.
3. The high-altitude, long-span cantilever structure support system according to claim 1, characterized in that, It also includes a reinforcing rod (6), which is arranged perpendicular to the supporting beam (4) and has its upper side fixed to one end of the supporting beam (4) away from the second anchoring component (5), and its lower side abutting against the outer facade of the lower floor slab (100).
4. The high-altitude, long-span cantilever structure support system according to claim 3, characterized in that, The connection points between the cantilever beam (1) and the diagonal brace (3), the connection points between the diagonal brace (3) and the supporting beam (4), and the connection points between the supporting beam (4) and the reinforcing rod (6) are all fixed by welding.
5. The high-altitude, long-span cantilever structure support system according to claim 1, characterized in that, It also includes an end support assembly (7), which includes multiple embedded steel bars (71) and wedges (72). The multiple embedded steel bars (71) are arranged at intervals along the direction perpendicular to the support beam (4) and fixed to the top of the lower floor slab (100). The wedges (72) are inserted between the multiple embedded steel bars (71) and the end wall of the support beam (4).
6. The high-altitude, long-span cantilever structure support system according to claim 1, characterized in that, It also includes a cable tie assembly (8), which includes an upper hanging ring (81), a cable tie (82) and a lower hanging ring. The upper hanging ring (81) is fixed to the outer facade of the upper floor slab (300), and the top end of the cable tie (82) is connected to the upper hanging ring (81). One end of the lower hanging ring is fixedly connected to the bottom end of the cable tie (82), and the other end is connected to the side of the cantilever beam (1) away from the first anchoring assembly (2).
7. A high-altitude, long-span cantilever structure support system according to claim 6, characterized in that, The two ends of the cable (82) pass through the upper ring (81) and the lower ring respectively, then fold back and are fixed by the fastening rope clamp (83) and the observation rope clamp (84) in sequence. The folded end of the cable (82) is provided with an observation bend (821) corresponding to the fastening rope clamp (83) and the observation rope clamp (84).
8. The high-altitude, long-span cantilever structure support system according to claim 1, characterized in that, The assembly also includes a pressure beam assembly (9), which includes a lower pressure plate, a vertical pole and an upper top plate. The lower pressure plate is pressed onto the top of the cantilever beam (1) on the side close to the first anchoring assembly (2). The vertical pole is arranged perpendicular to the cantilever beam (1) and its bottom is fixedly connected to the lower pressure plate. The bottom of the upper top plate is fixedly connected to the top of the vertical pole and its top is supported on the bottom surface of the upper floor slab.
9. A high-altitude, long-span cantilever structure support system according to any one of claims 1-8, characterized in that, The first anchoring assembly (2) includes a plurality of first U-bolt anchors arranged at intervals along the length of the cantilever beam (1) and embedded in the middle floor slab (200).
10. A high-altitude, long-span cantilever structure support system according to claim 9, characterized in that, The second anchoring assembly (5) includes a plurality of second U-bolt anchors that are spaced apart along the length of the supporting beam (4) and embedded in the lower floor slab (100).