Cantilever construction frame for cantilever long eave board outside concrete bin

By installing a cantilevered construction frame on the silo body and connecting it with a tripod and pre-embedded bolts, the problems of large workload and safety hazards in the construction of the cantilevered eaves were solved, and the costs were reduced and the construction efficiency was improved.

CN224200236UActive Publication Date: 2026-05-05CHINA RAILWAY NO 5 ENG GRP BUILDING ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY NO 5 ENG GRP BUILDING ENG
Filing Date
2025-05-26
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

In existing technologies, the construction of cantilevered eaves requires the erection of a support frame on the ground, resulting in a large workload, uneconomical operation, and significant safety hazards.

Method used

The cantilevered construction frame, consisting of silo units and cantilever units, utilizes components such as tripods, reduced-diameter steel pipe ends, protective uprights, and support templates. These components are connected to the silo body via pre-embedded bolts to form a stable construction frame, avoiding ground-based construction.

Benefits of technology

It significantly reduces construction costs, shortens the construction period, improves construction efficiency, and ensures safety through a multi-layered protection system, achieving a safe and controllable construction process.

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Abstract

The utility model discloses a cantilever construction frame for a cantilever long eave board outside a concrete bin, which comprises a silo unit, a cantilever unit, a cantilever unit, a cantilever unit and a cantilever unit, wherein the silo unit comprises a silo body and an eave board arranged at the top of the silo body; the overhanging unit comprises tripods, reducing steel pipe heads, protective vertical rods, supporting formworks, supporting vertical rods, protective horizontal rods and battens, the tripods are installed on the silo body at intervals in the circumferential direction, the supporting formworks are horizontally installed on the tops of the tripods, and the protective vertical rods are installed on the outer sides of the tops of the tripods through the reducing steel pipe heads; the protective vertical rod is arranged on the inner side of the supporting formwork and extends upwards to the position above the outer side of the eave board, the supporting vertical rod is arranged on the inner side of the supporting formwork and extends upwards to the position below the bottom face of the eave board, the two ends of the protective horizontal rod are connected with the protective vertical rod and the supporting vertical rod through fasteners respectively, and a first batten is arranged between the protective horizontal rod located below the eave board and the eave board. By adopting the mode that the cantilever units are installed outside the silo body, consumption of a large number of materials and manpower for erecting a supporting frame body on the traditional ground is avoided, and the construction cost is remarkably reduced.
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Description

Technical Field

[0001] This utility model relates to a cantilever construction frame for a long eaves panel of a concrete silo, belonging to the field of building main structure construction technology. Background Technology

[0002] The warehousing and logistics project of China Grain Reserves Corporation (Sinograin) Daye Branch includes 25 independent reinforced concrete silos, each with an inner diameter of 25m and a wall thickness of 280mm. At the top of the silos (elevation 28.65m), there is a 700mm long overhanging eaves panel. The project plans to use slipform construction to complete the lower silo wall construction. For the overhanging eaves panel construction, if a support frame is directly erected from the ground, it would not only be a large and uneconomical undertaking, but also would pose a significant safety hazard due to the inability to connect the frame to the silo walls. Utility Model Content

[0003] Based on the above, this utility model provides a cantilever construction frame for a long eaves panel outside a concrete silo to overcome the shortcomings of the prior art.

[0004] The technical solution of this utility model is: a cantilever construction frame for a long eaves slab of a concrete silo, comprising:

[0005] A silo unit, comprising a silo body and an eaves panel disposed on the top of the silo body;

[0006] The cantilever unit includes a tripod, a reduced-diameter steel pipe end, a protective upright, a support template, a support upright, a support horizontal bar, and a timber beam. The tripod is installed circumferentially on the silo body at intervals. The reduced-diameter steel pipe end is installed on the top outer side of the tripod. The support template is horizontally installed on the top of the tripod. The protective upright is installed on the reduced-diameter steel pipe end and extends upward to the upper outer side of the eaves board. The support upright is located on the inner side of the support template and extends upward to the lower bottom surface of the eaves board. The two ends of the support horizontal bar are connected to the protective upright and the support upright respectively by fasteners. A timber beam is provided between the support horizontal bar located below the eaves board and the eaves board.

[0007] In one example, the tripod includes a vertical angle steel, a diagonal angle steel, and a horizontal channel steel. The vertical angle steel is disposed on the outside of the silo body, the horizontal channel steel is connected to the top of the vertical angle steel, and the diagonal angle steel is fixed between the bottom of the horizontal channel steel and the vertical angle steel.

[0008] In one example, the shear wall or lower structural beam of the silo body is provided with pre-embedded bolts, and the vertical angle steel is fixed to the silo body by connecting with the pre-embedded bolts.

[0009] In one example, a second wooden beam is provided at the top of the tripod, and the support template is installed on the second wooden beam.

[0010] In one example, a protective horizontal bar is provided between the protective uprights.

[0011] In one example, a plurality of the supporting horizontal bars are installed at intervals from bottom to top between the protective upright and the supporting upright.

[0012] The beneficial effects of this utility model are:

[0013] 1. By installing cantilever units outside the silo, the large amount of materials and labor consumed by traditional ground-based support structures is avoided, significantly reducing construction costs. Tripods and other parts can be pre-customized in the factory and quickly assembled on-site, further shortening the construction period and improving overall construction efficiency.

[0014] 2. The tripod is securely connected to the silo body via pre-embedded bolts. Its structural design (vertical angle steel, diagonal angle steel, and horizontal channel steel) has undergone mechanical calculations to ensure that the load-bearing capacity meets the requirements. The combination of protective uprights, protective horizontal bars, supporting uprights, and timber forms a multi-layered protection system, effectively ensuring the safety of high-altitude operations.

[0015] 3. When erecting the frame, tripods can be installed one by one in the lower structure of the silo, and the frame can be connected into a whole by protective uprights, protective horizontal bars and supporting uprights. When dismantling, it can also be dismantled through the lower structure or by hanging a suspended basket. It is safe and controllable, facilitates quality control and on-site implementation, improves construction efficiency and saves construction time. Attached Figure Description

[0016] Figure 1 A schematic diagram of a cantilevered construction scaffold for a long eaves panel outside a concrete storage area;

[0017] Figure 2 This is the front view of the tripod;

[0018] Figure 3 This is a side view of the tripod;

[0019] Explanation of reference numerals in the attached figures:

[0020] Silo unit: 11 Silo body, 12 Roofing board, 13 Embedded bolts;

[0021] Cantilever Unit: 21 Triangular Frame, 211 Vertical Angle Steel, 212 Diagonal Angle Steel, 213 Horizontal Channel Steel, 214 Connecting Bolt, 22 Reduced Diameter Steel Pipe Head, 23 Protective Upright, 24 Support Template, 25 Support Upright, 26 Support Horizontal Bar, 27 Protective Horizontal Bar, 28 Timber Frame 1, 29 Timber Frame 2. Detailed Implementation

[0022] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0023] Please see Figures 1 to 3 This embodiment describes a cantilever construction frame for a concrete silo with an extended eaves, comprising a silo unit and a cantilever unit.

[0024] The silo unit includes a silo body 11 and a roof panel 12 installed on top of the silo body 11. During the pouring and construction of the silo body 11, pre-embedded bolts 13 are installed in the shear walls or lower structural beams of the main structure.

[0025] The cantilever unit includes a tripod 21, a reduced-diameter steel pipe end 22, a protective upright 23, a support template 24, a support upright 25, a support horizontal bar 26, and timber. The tripod 21 is installed on the silo body 11 at circumferential intervals using pre-embedded bolts 13. The reduced-diameter steel pipe end 22 is welded to the top outer side of the tripod 21. The support template 24 is horizontally installed on the top of the tripod 21. The protective upright 23 is fitted onto the reduced-diameter steel pipe end 22 and extends upward to the outer side above the eaves board 12. Between the protective uprights 23... A horizontal support bar 26 is installed, and a vertical support bar 25 is installed inside the support template 24. Its bottom rests against the support template 24, and its top extends upward to below the bottom surface of the eaves board 12. Multiple horizontal support bars 26 are installed at intervals from bottom to top between the protective vertical bar 23 and the vertical support bar 25. Their two ends are connected to the protective vertical bar 23 and the vertical support bar 25 respectively by fasteners. Multiple wooden blocks 28 are installed at intervals between the section of the horizontal support bar 26 located below the eaves board 12 and the eaves board 12.

[0026] For ease of installation, the tripod 21 includes a vertical angle steel 211, a diagonal angle steel 212, and a horizontal channel steel 213. The vertical angle steel 211 is fixed to the silo body 11 by connecting to pre-embedded bolts 13. The horizontal channel steel 213 is connected to the top of the vertical angle steel 211, and the diagonal angle steel 212 is fixed between the bottom of the horizontal channel steel 213 and the vertical angle steel 211 by connecting bolts 214. The tripod 21 can be prefabricated in the factory and transported to the site for installation. Multiple timber beams 29 are installed on the top of the tripod 21, i.e., on the horizontal channel steel 213, and the support template 24 is installed on the timber beams 29.

[0027] The construction method of the above-mentioned concrete silo cantilevered eaves cantilever construction frame is as follows: During the slipform construction of the silo wall 11, bolt sleeves 13 are pre-embedded in the silo wall. After the slipform is completed and the concrete structure of the silo wall meets the requirements, the tripod 21 is installed. When installing the tripod 21, the lower suspended basket of the slipform system can be used for construction. The other parts are constructed in accordance with conventional methods. When dismantling, the cantilevered hanging basket can be used for construction. The entire construction process is safe and controllable, with low pressure on quality and schedule, and high on-site construction efficiency.

[0028] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A cantilever construction scaffold for a concrete silo with an overhanging eaves, characterized in that, include: The silo unit includes a silo body (11) and an eaves panel (12) disposed on the top of the silo body (11). The cantilever unit includes a tripod (21), a reduced-diameter steel pipe end (22), a protective upright (23), a support template (24), a support upright (25), a support horizontal bar (26), and a timber frame (28). The tripod (21) is installed circumferentially on the silo body (11). The reduced-diameter steel pipe end (22) is installed on the top outer side of the tripod (21). The support template (24) is horizontally installed on the top of the tripod (21). The protective upright (23) is installed on the silo body (11). The reduced diameter steel pipe head (22) extends upward to the outside of the eaves board (12). The support pole (25) is set on the inside of the support template (24) and extends upward to the bottom of the eaves board (12). The two ends of the support horizontal bar (26) are connected to the protective pole (23) and the support pole (25) respectively by fasteners. A wooden block (28) is provided between the support horizontal bar (26) below the eaves board (12) and the eaves board (12).

2. The cantilever construction scaffold for the cantilevered eaves of the concrete silo according to claim 1, characterized in that, The tripod (21) includes a vertical angle steel (211), a diagonal angle steel (212), and a horizontal channel steel (213). The vertical angle steel (211) is located on the outside of the silo body (11). The horizontal channel steel (213) is connected to the top of the vertical angle steel (211). The diagonal angle steel (212) is fixed between the bottom of the horizontal channel steel (213) and the vertical angle steel (211).

3. The cantilever construction scaffold for the cantilevered eaves of the concrete silo according to claim 2, characterized in that, The shear wall or lower structural beam of the silo body (11) is provided with embedded bolts (13), and the vertical angle steel (211) is fixed to the silo body (11) by connecting with the embedded bolts (13).

4. The cantilever construction scaffold for the long eaves of the concrete silo according to claim 1, characterized in that, A second wooden block (29) is provided on the top of the tripod (21), and the support template (24) is installed on the second wooden block (29).

5. The cantilever construction scaffold for the cantilevered eaves of the concrete silo according to claim 1, characterized in that, A protective horizontal bar (27) is provided between the protective uprights (23).

6. The cantilever construction scaffold for the cantilevered eaves of the concrete silo according to claim 1, characterized in that, Multiple supporting horizontal bars (26) are installed at intervals from bottom to top between the protective upright (23) and the supporting upright (25).