A detachable and reusable tower crane steel-concrete composite foundation device
By combining the design of bridge abutments and steel structure welded components, the problem of installing and dismantling tower cranes in steep mountain cliff terrain has been solved, achieving convenient, safe, and efficient construction and environmentally friendly reuse.
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
- 2026-07-07
AI Technical Summary
In existing technologies, the reinforced concrete spread foundations of tower cranes are not suitable for steep cliff terrain in mountainous areas. The demolition work is extensive and the foundations cannot be reused, resulting in high costs and significant environmental impact.
The design combines bridge abutments and welded steel structures, using high-strength bolts to connect and fix the welded steel structures to the bridge abutments. No foundation platform is required, and the embedded parts can be reused. Combined with anti-torsion members and height-adjustable benches, the tower crane can be stably installed and dismantled.
It enables convenient installation and dismantling of tower cranes in steep cliff terrain, meets stress requirements, reduces construction costs, minimizes environmental impact, and allows for the reuse of steel structures.
Smart Images
Figure CN224468239U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge construction technology, and in particular to a detachable and reusable steel-concrete composite foundation device for tower cranes. Background Technology
[0002] The construction of high bridge piers generally uses tower cranes as lifting equipment, and their foundations are generally reinforced concrete spread foundations. The disadvantages are: it requires a spread foundation bearing platform that meets the bearing capacity requirements, which is subject to many terrain limitations. It is not suitable for mountainous areas with steep cliffs where a foundation platform cannot be provided. Furthermore, the demolition of reinforced concrete spread foundations involves a large amount of work, cannot be recycled and reused, has high costs, and affects the ecological environment. Utility Model Content
[0003] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a detachable and reusable steel-concrete composite foundation device for tower cranes. This device uses a bridge abutment and steel structure welded components to jointly design the tower crane foundation in bridge construction in steep cliff terrain in mountainous areas. It does not require a foundation platform. The steel structure welded components are connected and fixed to the bridge abutment by high-strength bolts, eliminating the need for aerial welding. It is convenient to install and dismantle, and the steel structure welded components, including the embedded parts, can be reused for the next foundation after removal. The foundation meets the stress requirements and is safe, efficient and environmentally friendly.
[0004] To achieve the above-mentioned technical features, the purpose of this utility model is as follows: a detachable and reusable steel-concrete composite foundation device for a tower crane, including a bridge abutment, with multiple pairs of pre-embedded assembly parts fixed on one side of the outer wall of the bridge abutment, steel structure welded parts fixedly installed on the pre-embedded assembly parts, anti-torsion rods fixed between the steel structure welded parts and the bridge abutment, a foundation height adjustment bench fixed on the top of the steel structure welded parts, and a tower crane fixedly installed on the top of the bridge abutment and the foundation height adjustment bench.
[0005] Preferably, the bridge abutment is pre-embedded and fixed to the top of the steep cliff via pile foundation.
[0006] Preferably, the top of the bridge abutment is cast to form a bridge pier, and the bridge pier is fixedly connected to the tower crane by a continuous beam.
[0007] Preferably, the pre-embedded assembly includes a tapered nut, which is pre-embedded and cast inside the bridge abutment. A high-strength bolt is fixedly installed at the location of the tapered nut, and the steel structure welded component is fixedly connected to the high-strength bolt through an anchor plate.
[0008] Preferably, the steel structure welded component includes a support bracket that is horizontally and vertically fixedly connected to the pre-embedded assembly. The bottom of the support bracket is fixed with an inclined support leg, and anchor plates are welded to the ends of the support bracket and the inclined support leg that mate with the pre-embedded assembly.
[0009] Preferably, the tower crane is fixedly connected to the bridge abutment by anchor bolts, and the tower crane is fixedly connected to the foundation height adjustment bench by anchor bolts.
[0010] Preferably, the base height adjustable bench includes a base plate, and a top plate is fixed to the top of the base plate by a vertical plate. Anchor bolt through holes are respectively provided on the base plate and the top plate for passing through the anchor bolts. The connection between the base height adjustable bench and the steel structure welded component is fixedly connected by a wedge plate.
[0011] Preferably, the anti-torsion member includes a horizontal bar fixed between adjacent supporting brackets, an inner diagonal bar between the horizontal bar and the supporting bracket, and an outer diagonal bar fixed between the outer wall of the supporting bracket and the outer wall of the bridge abutment.
[0012] Preferably, the anchor plate is machined with multiple sets of bolt through holes for high-strength bolts to pass through.
[0013] Preferably, the supporting bracket is an I-beam supporting bracket.
[0014] The present invention has the following beneficial effects:
[0015] 1. This utility model device adopts a joint design of bridge abutment and steel structure welded components for tower crane foundation in bridge construction in steep cliff terrain in mountainous areas. It eliminates the need to provide a foundation platform. The steel structure welded components are connected and fixed to the bridge abutment by high-strength bolts, eliminating the need for aerial welding. It is convenient to install and dismantle. Moreover, the steel structure welded components, including the embedded parts, can be reused for the next foundation after removal. The foundation meets the stress requirements and is safe, efficient and environmentally friendly.
[0016] 2. The continuous beams described above enable a reliable connection between the tower crane and the bridge piers, thereby ensuring the stability and reliability of the tower crane.
[0017] 3. The aforementioned pre-embedded assembly components can provide an installation foundation for the steel structure welded components, thereby ensuring the reliability of the installation and fixation of the steel structure welded components.
[0018] 4. The above-mentioned steel structure welded components can provide an installation foundation for the entire tower crane and ensure the structural strength and stability of its installation.
[0019] 5. The tower crane can be reliably fixed by the above-mentioned anchor bolts and ground bolts.
[0020] 6. The aforementioned anti-torsion members enhance the stability and reliability of the welded steel structure components, ensuring their installation strength. 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 overall layout diagram of the tower crane of this utility model.
[0023] Figure 2 This is a basic side view of the present invention.
[0024] Figure 3 This is the basic elevation view of this utility model.
[0025] Figure 4 This is the basic plan view of this utility model.
[0026] Figure 5 This is a structural diagram of the basic height-adjustable bench of this utility model.
[0027] Figure 6 This is a structural diagram of the wedge-shaped plate of this utility model.
[0028] Figure 7 This is a structural diagram of the tapered nut anchoring installation of this utility model.
[0029] Figure 8 This is the front view of the anchor plate of this utility model.
[0030] Figure 9 This is a structural diagram of the anchor plate fixing structure of this utility model.
[0031] In the diagram: 1. Steel structure welded components; 2. Embedded assembly components; 3. Support brackets; 4. Anti-torsion members; 5. Foundation height adjustment benches; 6. Anchor bolts; 7. Wedge plates; 8. Anchor bolts; 9. Conical nuts; 10. Anchor plates; 11. High-strength bolts; 12. Tower crane; 13. Bridge abutment; 14. Steep cliff; 15. Pile foundation; 16. Bridge piers; 17. Continuous beams; 18. Diagonal support legs.
[0032] Horizontal bar 401, inner diagonal bar 402, outer diagonal bar 403;
[0033] Top plate 501, vertical plate 502, bottom plate 503, anchor bolt through hole 504;
[0034] Bolt through hole 1001. Detailed Implementation
[0035] The embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0036] See Figure 1-9A detachable and reusable steel-concrete composite foundation device for tower cranes includes a bridge abutment 13. Multiple pairs of pre-embedded assemblies 2 are fixed to the outer wall of one side of the bridge abutment 13. Steel structural welded components 1 are fixedly installed on the pre-embedded assemblies 2. Anti-torsion members 4 are fixed between the steel structural welded components 1 and the bridge abutment 13. A foundation height adjustment bench 5 is fixed to the top of the steel structural welded components 1. A tower crane 12 is fixedly installed on the foundation height adjustment bench 5 and the top of the bridge abutment 13. This foundation device, by combining the bridge abutment and steel structural welded components in the design of a tower crane foundation for bridge construction in steep cliff terrain in mountainous areas, eliminates the need for a foundation platform. The steel structural welded components are connected and fixed to the bridge abutment with high-strength bolts, eliminating the need for aerial welding. Installation and dismantling are convenient, and the steel structural welded components, including the pre-embedded components, can be reused for the next foundation after removal. The foundation meets the stress requirements and is safe, efficient, and environmentally friendly. During the specific construction process, the pre-embedded assembly 2 is pre-cast inside the bridge abutment 13, and the steel structure welded component 1 is fixed on the pre-embedded assembly 2. The tower crane 12 is fixed to the bridge abutment 13 by the foundation height adjustment bench 5 on the top of the steel structure welded component 1.
[0037] Furthermore, the bridge abutment 13 is pre-embedded and fixed to the top of the steep cliff 14 via pile foundation 15. Through the aforementioned fixing structure, reliable fixation of the bridge abutment 13 can be achieved.
[0038] Furthermore, the top of the bridge abutment 13 is cast to form a bridge pier 16, and the bridge pier 16 is fixedly connected to the tower crane 12 by a continuous beam 17. The continuous beam 17 enables a reliable connection between the tower crane 12 and the bridge pier 16, thereby ensuring the fixed installation and reliability of the tower crane 12.
[0039] Furthermore, the pre-embedded assembly 2 includes a conical nut 9, which is pre-embedded and cast inside the bridge abutment 13. A high-strength bolt 11 is fixedly installed at the location of the conical nut 9, and the steel structure welded component 1 is fixedly connected to the high-strength bolt 11 via an anchor plate 10. The pre-embedded assembly 2 provides an installation foundation for the steel structure welded component 1, thereby ensuring the reliability of the installation and fixation of the steel structure welded component 1. The pre-embedded assembly 2 is pre-embedded and cast during the casting process of the bridge abutment 13.
[0040] Furthermore, the steel structure welded assembly 1 includes a support bracket 3 that is horizontally and vertically fixedly connected to the pre-embedded assembly 2. An inclined support leg 18 is fixed to the bottom of the support bracket 3, and anchor plates 10 are welded to the mating ends of the support bracket 3 and the inclined support leg 18 that mate with the pre-embedded assembly 2. The aforementioned steel structure welded assembly 1 provides an installation foundation for the entire tower crane 12 and ensures the structural strength and stability of its installation.
[0041] Furthermore, the tower crane 12 is fixedly connected to the bridge abutment 13 by anchor bolts 8, and the tower crane 12 is fixedly connected to the foundation height adjustment bench 5 by anchor bolts 6. The anchor bolts 8 and anchor bolts 6 ensure reliable fixation of the tower crane 12.
[0042] Furthermore, the foundation height adjusting bench 5 includes a base plate 503, and a top plate 501 is fixed to the top of the base plate 503 via a vertical plate 502. Anchor bolt through holes 504 are respectively provided on the base plate 503 and the top plate 501, for anchor bolts 6 to pass through. The connection between the foundation height adjusting bench 5 and the steel structure welded assembly 1 is fixedly connected by a wedge plate 7. The foundation height adjusting bench 5 facilitates subsequent customization according to the specific installation height, thereby achieving reliable support and fixation for the tower crane 12.
[0043] Furthermore, the anti-torsion member 4 includes a horizontal bar 401 fixed between adjacent supporting brackets 3, an inner diagonal bar 402 provided between the horizontal bar 401 and the supporting bracket 3, and an outer diagonal bar 403 fixed between the outer wall of the supporting bracket 3 and the outer wall of the bridge abutment 13. The aforementioned anti-torsion member 4 enhances the stability and reliability between the steel structure welded components 1, ensuring their installation strength.
[0044] Furthermore, the anchor plate 10 is machined with multiple sets of bolt through holes 1001 for high-strength bolts 11 to pass through. The anchor plate 10 described above enables a reliable connection between the steel structure welded component 1 and the bridge abutment 13.
[0045] Furthermore, the supporting bracket 3 is made of I-beam steel. The use of I-beam steel supports ensures the strength of the supporting structure.
[0046] The specific construction process and principle of this utility model are as follows:
[0047] In the specific work process, the bridge abutment 13 is located on a steep cliff 14. During the construction of the bridge abutment 13, anchor bolts 8 and tapered nuts 9 in the pre-embedded assembly 2 are pre-embedded. After the construction of the bridge abutment 13 is completed, the anchor plate 10 is connected and fixed to the bridge abutment 13 by high-strength bolts 11 and the previously pre-embedded tapered nuts 9. The support bracket 3 in the steel structure welded assembly 1 is welded to the anchor plate 10 as a vertical support component for the tower crane. To resist the torsion of the tower crane, welding is done on the support bracket 3. The anti-torsion member 4, based on the bottom elevation of the tower crane 12, has its foundation height adjustment bench 5 installed on top of the supporting bracket 3. The tower crane 12 is hoisted so that its two bottom legs are inserted into the anchor bolts 8 and anchored. Anchor bolts 6 are then passed from top to bottom through the other two bottom legs of the tower crane 12, the height adjustment bench 5, and the top of the supporting bracket 3. A wedge plate 7 is placed under the I-beam flange to anchor the other two legs of the tower crane to the steel structure welded assembly 1. Through the anchor bolts 8 to the bridge abutment 13 and through the anchor bolts 6 to the steel structure welded assembly 1, the bridge abutment 13 and the steel structure welded assembly 1 are combined to form the foundation of the tower crane. When dismantling the foundation, the anchor bolts 6, anchor bolts 8, and high-strength bolts 11 are loosened. The entire steel structure welded assembly 1 is then lifted away from the bridge abutment 13. Finally, the conical nut 9 is rotated until it is unscrewed from the abutment. The steel structure can be reused for the next foundation.
Claims
1. A detachable and reusable steel-concrete composite foundation device for tower cranes, characterized in that, The bridge abutment (13) includes multiple pairs of pre-embedded assemblies (2) fixed on one side of the outer wall of the bridge abutment (13). Steel structure welded components (1) are fixedly installed on the pre-embedded assemblies (2). Anti-torsion members (4) are fixed between the steel structure welded components (1) and the bridge abutment (13). A foundation height adjustment bench (5) is fixed on the top of the steel structure welded components (1). A tower crane (12) is fixedly installed on the foundation height adjustment bench (5) and the top of the bridge abutment (13).
2. The detachable and reusable steel-concrete composite foundation device for a tower crane according to claim 1, characterized in that: The bridge abutment (13) is pre-embedded and fixed to the top of the steep cliff (14) by pile foundation (15).
3. The detachable and reusable steel-concrete composite foundation device for a tower crane according to claim 1, characterized in that: The top of the bridge abutment (13) is cast to form a bridge pier (16), and the bridge pier (16) is fixedly connected to the tower crane (12) by a continuous beam (17).
4. The detachable and reusable steel-concrete composite foundation device for a tower crane according to claim 1, characterized in that: The pre-embedded assembly (2) includes a conical nut (9), which is pre-embedded and cast inside the bridge abutment (13). A high-strength bolt (11) is fixedly installed at the location of the conical nut (9). The steel structure welded component (1) is fixedly connected to the high-strength bolt (11) through the anchor plate (10).
5. The detachable and reusable steel-concrete composite foundation device for a tower crane according to claim 4, characterized in that: The steel structure welded component (1) includes a support bracket (3) that is horizontally and vertically fixedly connected to the pre-embedded assembly (2). The bottom of the support bracket (3) is fixed with an inclined support leg (18). The support bracket (3) and the inclined support leg (18) are respectively welded with anchor plates (10) at the ends that cooperate with the pre-embedded assembly (2).
6. The detachable and reusable steel-concrete composite foundation device for a tower crane according to claim 4, characterized in that: The tower crane (12) is fixedly connected to the bridge abutment (13) by anchor bolts (8), and the tower crane (12) is fixedly connected to the foundation height adjustment bench (5) by anchor bolts (6).
7. The detachable and reusable steel-concrete composite foundation device for a tower crane according to claim 6, characterized in that: The base height adjustable bench (5) includes a base plate (503), and a top plate (501) is fixed to the top of the base plate (503) by a vertical plate (502). Anchor bolt through holes (504) are respectively provided on the base plate (503) and the top plate (501). The anchor bolt through holes (504) are used to pass through the anchor bolts (6). The connection between the base height adjustable bench (5) and the steel structure welded component (1) is fixedly connected by a wedge plate (7).
8. The detachable and reusable steel-concrete composite foundation device for a tower crane according to claim 5, characterized in that: The anti-torsion member (4) includes a horizontal bar (401) fixed between adjacent support brackets (3), an inner diagonal bar (402) between the horizontal bar (401) and the support bracket (3), and an outer diagonal bar (403) fixed between the outer wall of the support bracket (3) and the outer wall of the bridge abutment (13).
9. The detachable and reusable steel-concrete composite foundation device for a tower crane according to claim 5, characterized in that: The anchor plate (10) is machined with multiple sets of bolt through holes (1001) for passing through high-strength bolts (11).
10. The detachable and reusable steel-concrete composite foundation device for a tower crane according to claim 5, characterized in that: The supporting bracket (3) is made of I-beam steel.