A detachable and reusable construction hoist foundation device for mountainous areas
The construction hoist foundation, designed with bridge piers and welded steel structure components, utilizes tapered nuts and high-strength bolts to connect triangular support frames, solving the problem of reinforced concrete enlarged foundations in mountainous construction. This enables convenient installation and reuse, reducing costs and environmental impact.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA GEZHOUBA GROUP NO 5 ENG
- Filing Date
- 2025-07-02
- Publication Date
- 2026-07-14
AI Technical Summary
In existing bridge construction, reinforced concrete spread foundations cannot provide a platform in steep cliff terrain in mountainous areas, resulting in construction difficulties, large demolition workload, high costs, and impact on the ecological environment.
The construction hoist foundation, designed with bridge piers and welded steel structures, uses conical nuts and high-strength bolts to connect triangular support frames. The members are connected by bolts, eliminating the need for a foundation platform and aerial welding. The embedded parts can be reused.
It enables convenient installation of construction hoists in steep mountainous terrain, ensuring safety and efficiency, reducing construction costs, minimizing environmental impact, and allowing for the reuse of poles.
Smart Images

Figure CN224495195U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge construction technology, and in particular to a construction hoist foundation device that can be disassembled and reused in mountainous areas. Background Technology
[0002] Construction of high bridge piers typically uses construction hoists as access for personnel. The foundations are usually reinforced concrete spread foundations. The disadvantages are: a platform for the spread foundation needs to be provided, and the bearing capacity of the platform foundation must meet the design requirements. It is subject to many terrain limitations and is not suitable for steep cliffs in mountainous areas where a platform cannot be provided. Furthermore, the demolition of reinforced concrete spread foundations involves a large amount of work and is not recyclable, resulting in high costs and impacting the ecological environment. Utility Model Content
[0003] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a construction hoist foundation device that can be disassembled and reused in mountainous areas. This device adopts a joint design of bridge piers and steel structure welded components for the construction hoist foundation. There is no need to provide a foundation platform. All members are connected by bolts, eliminating the need for aerial welding. After disassembly, all members, including embedded parts, can be reused. It is convenient to install and disassemble, safe, efficient and environmentally friendly.
[0004] To achieve the above-mentioned technical features, the purpose of this utility model is as follows: a construction hoist foundation device that can be disassembled and reused in mountainous areas includes a bridge pier. Multiple sets of conical nuts are fixed at different heights on one side of the bridge pier. Multiple sets of parallel triangular support frames are fixed between the conical nuts at different heights by high-strength bolt assemblies. Multiple sets of horizontally arranged top beams are fixed to the top of the triangular support frames. A top platform is fixed to the top of the top beams. The foundation segment of the construction hoist is fixed to the top of the top platform by anchor bolts. A platform fence is fixed to the periphery of the top platform.
[0005] Preferably, the conical nut is pre-embedded and cast into the interior of the bridge pier column.
[0006] Preferably, the high-strength bolt assembly includes a long screw rod, which is threadedly connected to the inside of a tapered nut, and a locking nut for fixing a triangular support frame is fixedly installed at the end of the long screw rod.
[0007] Preferably, the triangular support frame includes a first horizontal bar, one end of which is fixed with an anchor plate. The anchor plate is fixedly connected to the upper conical nut by a high-strength bolt assembly. The bottom end of the first horizontal bar is fixed with a diagonal brace, and the other end of the diagonal brace is fixed with an anchor plate. The anchor plate is fixedly connected to the lower conical nut by a high-strength bolt assembly.
[0008] Preferably, the anchor plate is fixed to the first horizontal bar and the diagonal brace by welding.
[0009] Preferably, the diagonal braces of adjacent triangular support frames are fixed with a reinforcing structure using ordinary bolts.
[0010] Preferably, the reinforcing structure includes multiple sets of second horizontal bars fixed horizontally to the outer wall of the diagonal brace, with diagonal reinforcing bars fixed between the second horizontal bars.
[0011] Preferably, the anchor plate is machined with a plurality of bolt through holes for passing through the long screw.
[0012] Preferably, the first horizontal bar, the diagonal brace, and the top beam are all cut from I-beams.
[0013] Preferably, the second horizontal bar and the diagonal reinforcing bar are both cut from steel profiles.
[0014] The present invention has the following beneficial effects:
[0015] 1. In bridge construction in steep mountainous terrain, this utility model device adopts a joint design of bridge piers and steel structure welded components to construct the elevator foundation. It does not require a foundation platform. All components are bolted together, eliminating the need for aerial welding. After dismantling, all components, including embedded parts, can be reused. It is convenient to install and dismantle, safe, efficient, and environmentally friendly.
[0016] 2. The above-mentioned pre-embedded casting method can ensure that the conical nut is reliably fixed inside the bridge pier column, so as to provide installation contact for the subsequent installation of the triangular support frame.
[0017] 3. The high-strength bolt assembly described above facilitates a reliable fixed connection to the triangular support frame, thereby ensuring that the triangular support frame has sufficient load-bearing capacity and ultimately achieving fixed support for the entire construction hoist.
[0018] 4. The aforementioned triangular support frame serves as the installation foundation for the entire construction hoist, ensuring the strength and stability of the entire structure.
[0019] 5. The above-mentioned reinforced structure ensures the connection strength and stability between the triangular support frames, thereby ensuring the subsequent support strength of the triangular support frames and guaranteeing safety.
[0020] 6. By using I-beams as the main structure, the stability and reliability of the entire elevator foundation device are ensured. Attached Figure Description
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Figure 1 This is the front view of the present utility model.
[0023] Figure 2 This is a top view of the present invention.
[0024] Figure 3 This is a side view of the present invention.
[0025] Figure 4 This is a pre-embedded structural diagram of the conical nut of this utility model.
[0026] Figure 5 This is the front view of the anchor plate of this utility model.
[0027] Figure 6 The main view of the anchor plate installation of this utility model.
[0028] In the diagram: 1. First horizontal bar; 2. Tapered nut; 3. High-strength bolt assembly; 4. Anchor plate; 5. Reinforcing structure; 6. Ordinary bolt; 7. Anchor bolt; 8. Foundation segment; 9. Construction hoist; 10. Bridge pier; 11. Diagonal brace; 12. Top platform; 13. Top beam; 14. Platform railing.
[0029] Locking nut 301, long screw 302;
[0030] 401 bolt through hole;
[0031] Second horizontal bar 501, diagonal reinforcing bar 502. Detailed Implementation
[0032] The embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0033] See Figure 1-6 A detachable and reusable construction hoist foundation device for mountainous areas includes a bridge pier 10. Multiple sets of conical nuts 2 are fixed at different heights on one side of the bridge pier 10. Multiple sets of parallel triangular support frames are fixed between the conical nuts 2 at different heights via high-strength bolt assemblies 3. Multiple sets of horizontally arranged top beams 13 are fixed to the top of the triangular support frames. A top platform 12 is fixed to the top of the top beams 13. The foundation segment 8 of the construction hoist 9 is fixed to the top of the top platform 12 via anchor bolts 7. A platform fence 14 is fixed to the periphery of the top platform 12. By adopting the above device, and by using the bridge pier and steel structure welded components for the joint design of the construction hoist foundation, there is no need to provide a foundation platform. All components are bolted together, eliminating the need for aerial welding. After dismantling, all components, including embedded parts, can be reused. Installation and dismantling are convenient, safe, efficient, and environmentally friendly. In the specific construction process, multiple sets of triangular support frames are fixed to the conical nuts 2 by high-strength bolt assembly 3, thereby realizing the connection between the triangular support frames and the bridge pier 10. Then, the top beam 13 and the top platform 12 are arranged on the top of the triangular support frames, and the foundation segment 8 is fixed and installed through the top platform 12, and finally the construction hoist 9 is installed.
[0034] Furthermore, the tapered nut 2 is pre-embedded inside the bridge pier 10. This pre-embedded method ensures that the tapered nut 2 is reliably fixed inside the bridge pier 10, facilitating subsequent installation contact for the triangular support frame.
[0035] Furthermore, the high-strength bolt assembly 3 includes a long screw 302, which is threadedly connected to the inside of the tapered nut 2. A locking nut 301 for fixing the triangular support frame is fixedly installed at the end of the long screw 302. The high-strength bolt assembly 3 facilitates a reliable fixed connection to the triangular support frame, thereby ensuring that the triangular support frame has sufficient load-bearing capacity and ultimately achieving fixed support for the entire construction hoist.
[0036] Furthermore, the triangular support frame includes a first horizontal bar 1, with an anchor plate 4 fixed to one end. The anchor plate 4 is fixedly connected to the upper conical nut 2 via a high-strength bolt assembly 3. A diagonal brace 11 is fixed to the bottom end of the first horizontal bar 1, and an anchor plate is fixed to the other end of the diagonal brace 11. The anchor plate is fixedly connected to the lower conical nut 2 via the high-strength bolt assembly 3. This triangular support frame serves as the installation foundation for the entire construction hoist, ensuring the strength and stability of the entire structure. Before construction, the first horizontal bar 1 and the diagonal brace 11 are pre-assembled and welded to form the entire triangular support frame. Then, the entire triangular support frame is subsequently fixed to the conical nut 2 via the high-strength bolt assembly 3.
[0037] Furthermore, the anchor plate 4 is fixed to the first horizontal bar 1 and the diagonal brace 11 by welding. This fixing method ensures the connection strength and stability between the first horizontal bar 1 and the diagonal brace 11.
[0038] Furthermore, a reinforcing structure 5 is fixed between the diagonal braces 11 of adjacent triangular support frames using ordinary bolts 6. This reinforcing structure 5 ensures the connection strength and stability between the triangular support frames, thereby guaranteeing the subsequent support strength of the triangular support frames and ensuring safety.
[0039] Furthermore, the reinforcing structure 5 includes multiple sets of second horizontal bars 501 horizontally fixed to the outer wall of the diagonal brace 11, with diagonal reinforcing bars 502 fixed between the second horizontal bars 501. The connection between the second horizontal bars 501 and the diagonal reinforcing bars 502 ensures the structural strength and stability of the entire reinforcing structure 5.
[0040] Furthermore, the anchor plate 4 is machined with multiple bolt through holes 401 for the long screw 302 to pass through. The anchor plate 4 facilitates the transition connection between the entire triangular support frame and the bridge pier 10.
[0041] Furthermore, the first horizontal bar 1, the diagonal brace 11, and the top beam 13 are all cut from I-beams. By using I-beams as the main structure, the stability and reliability of the entire elevator foundation are ensured. Moreover, the materials used are all conventional materials available on the construction site, which reduces construction costs to a certain extent.
[0042] Furthermore, both the second horizontal bar 501 and the diagonal reinforcing bar 502 are made by cutting steel profiles. By using steel profiles, construction costs are reduced to some extent.
[0043] The specific construction process and principle of this utility model are as follows:
[0044] In the specific work process, during the pouring of the bridge pier 10, the conical nut 2 is pre-embedded and solidifies as the bridge pier 10 is poured; after the conical nut 2 is fixed, the pre-assembled triangular support frame is fixedly connected to the conical nut 2 by the high-strength bolt assembly 3, and the triangular support frames are fixedly connected by the reinforcing structure 5 to form a stable foundation. Then, the top beam 13 is laid on the top of the triangular support frame, and the top platform 12 is fixed on the top of the top beam 13. Finally, the foundation segment 8 is fixed on the top of the top platform 12 by the anchor bolt 7. The corresponding construction hoist 9 is arranged on the foundation segment 8, and the subsequent construction of the bridge is carried out by the construction hoist 9.
[0045] After construction is completed, the high-strength bolt assembly 3, ordinary bolt 6, and anchor bolt 7 are loosened respectively. Then, the triangular support frame, reinforcing structure 5, and foundation segment 8 are disassembled respectively. Finally, the conical nut 2 is rotated until it is unscrewed from the bridge pier column 10, so that all members can be reused next time.
Claims
1. A detachable and reusable construction hoist foundation device for mountainous areas, characterized in that, The bridge pier (10) has multiple sets of conical nuts (2) fixed at different heights on one side of the bridge pier (10). Multiple sets of parallel triangular support frames are fixed between the conical nuts (2) at different heights by high-strength bolt assemblies (3). Multiple sets of horizontally arranged top beams (13) are fixed at the top of the triangular support frames. A top platform (12) is fixed at the top of the top beams (13). The foundation segment (8) of the construction hoist (9) is fixed at the top of the top platform (12) by anchor bolts (7). A platform fence (14) is fixed around the top platform (12).
2. The construction hoist foundation device for mountainous areas that can be disassembled and reused according to claim 1, characterized in that: The conical nut (2) is pre-embedded and cast inside the bridge pier (10).
3. The construction hoist foundation device for mountainous areas that is detachable and reusable, as described in claim 2, is characterized in that: The high-strength bolt assembly (3) includes a long screw (302), which is threadedly connected to the inside of the tapered nut (2). The end of the long screw (302) is fixedly fitted with a locking nut (301) for a fixed triangular support frame.
4. The construction hoist foundation device for mountainous areas that can be disassembled and reused according to claim 3, characterized in that: The triangular support frame includes a first horizontal bar (1), one end of which is fixed with an anchor plate (4), the anchor plate (4) is fixedly connected to the upper conical nut (2) by a high-strength bolt assembly (3), the bottom end of the first horizontal bar (1) is fixed with a diagonal brace (11), the other end of which is fixed with an anchor plate, the anchor plate is fixedly connected to the lower conical nut (2) by a high-strength bolt assembly (3).
5. The construction hoist foundation device for mountainous areas that can be disassembled and reused according to claim 4, characterized in that: The anchor plate (4) is fixed to the first horizontal bar (1) and the diagonal brace (11) by welding.
6. The construction hoist foundation device for mountainous areas that is detachable and reusable according to claim 4, characterized in that: The diagonal braces (11) of adjacent triangular support frames are fixed with a reinforcing structure (5) by ordinary bolts (6).
7. The construction hoist foundation device for mountainous areas that can be disassembled and reused according to claim 6, characterized in that: The reinforcing structure (5) includes multiple sets of second horizontal bars (501) fixed horizontally on the outer wall of the diagonal brace (11), and diagonal reinforcing bars (502) are fixed between the second horizontal bars (501).
8. The construction hoist foundation device for mountainous areas that is detachable and reusable according to claim 4, characterized in that: The anchor plate (4) is machined with multiple bolt through holes (401) for passing through the long screw (302).
9. The construction hoist foundation device for mountainous areas that is detachable and reusable according to claim 4, characterized in that: The first horizontal bar (1), the diagonal brace (11) and the top beam (13) are all cut from I-beams.
10. The construction hoist foundation device for mountainous areas that is detachable and reusable according to claim 7, characterized in that: The second horizontal bar (501) and the diagonal reinforcing bar (502) are both cut from steel profiles.