Large-span tower crane channel

Abstract

The utility model provides a large-span tower crane channel, which relates to the technical field of tower crane channels and comprises a channel body, the channel body is connected with a concrete bearing platform of a tower crane through a steel tube ladder stand, and steel tube protections are arranged on two sides of the channel body and the steel tube ladder stand. A steel channel bracket is arranged between the bottom of the steel pipe ladder stand and a latticed column of the tower crane, and a scaffold board is arranged on the upper surface of the channel body. The device is simple, convenient and feasible, facilitates on-site safety management and ensures the safety of a tower crane rope worker.

Description

Technical Field

[0001] The utility model relates to the technical field of tower crane passages, in particular to a large-span tower crane passage. Background Art

[0002] With the continuous development of my country's construction industry, technological advancements, and accelerated urbanization, underground space is receiving increasing attention. With the continuous excavation of underground space, deep foundation pit projects are becoming increasingly common in existing engineering fields. During deep foundation pit construction, tower crane foundations often utilize crane piles and lattice columns, with concrete caps cast atop the lattice columns. This allows for faster crane installation, improves site service, and enhances labor efficiency. Depending on the crane layout, model, and site construction requirements, the crane may be positioned close to the trestle deck or further away from the trestle in the middle of the pit, even exceeding 10 meters. When the crane is close to the trestle, a simple access route can be constructed using steel pipes to facilitate safe access for crane operators. When the crane is further away from the trestle, a protective round steel ladder can be used, attached from the excavation face to the top of the crane foundation. The excavation face is dynamic, and this access route requires dynamic management, which is challenging when working with multiple tower cranes. Summary of the Invention

[0003] In view of the above-mentioned prior art, the present invention proposes a large-span tower crane channel.

[0004] The utility model provides a large-span tower crane channel, comprising a channel body, wherein the channel body is connected to the concrete base of the tower crane through a steel pipe ladder, steel pipe protections are provided on both sides of the channel body and the steel pipe ladder, a channel steel corbel is provided between the bottom of the steel pipe ladder and the lattice column of the tower crane, and a scaffolding board is provided on the upper surface of the channel body.

[0005] Preferably, the channel body includes two channel steel longitudinal beams, and the two channel steel longitudinal beams are connected by a plurality of channel steel cross beams.

[0006] Preferably, a plurality of longitudinal steel pipe cores are provided on the plurality of channel steel beams.

[0007] Preferably, a bottom plate is provided at the lower end of the lattice column.

[0008] Preferably, a cross brace is provided at the lower end of the base plate.

[0009] Compared with the existing technology, the beneficial effects of the present invention are: the present invention proposes a large-span tower crane channel, which is simple, convenient and feasible, facilitates on-site safety management and ensures the safety of tower crane operators, and can save manpower and be used in a turnover manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1It is a schematic elevation view of a large-span tower crane passage in an embodiment of the present utility model.

[0011] Figure 2 It is a bottom schematic diagram of a large-span tower crane channel in an embodiment of the present utility model.

[0012] In the figure, 1. Steel pipe ladder; 2. Steel pipe protection; 3. Channel steel corbel; 4. Channel body; 5. Concrete pedestal; 6. Lattice column; 7. Bottom plate; 8. Cross brace; 9. Steel pipe core filling; 10. Channel steel cross beam; 11. Channel steel longitudinal beam. DETAILED DESCRIPTION

[0013] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0014] Example: Figure 1-Figure 2 As shown, a large-span tower crane access structure includes a access structure 4 connected to the crane's concrete pedestal 5 via a steel tube ladder 1. The steel tube ladder 1 facilitates rigging operators ascending and descending the crane. Steel tube guards 2 are installed on both sides of the access structure 4 and the steel tube ladder 1. Channel steel brackets 3 are installed between the bottom of the steel tube ladder 1 and the crane's lattice columns 6. Scaffolding is provided on the upper surface of the access structure 4. The access structure 4 includes two channel steel longitudinal beams 11, which are connected by several channel steel cross beams 10. Several longitudinal steel tube cores 9 are installed on these channel steel cross beams 10. A base plate 7 is provided at the lower end of the lattice columns 6, and a cross brace 8 is provided at the lower end of the base plate 7.

[0015] Based on force calculations, the channel body 4 utilizes Q235-strength 20b channel steel as longitudinal beams, with a 20b channel steel crossbeam connecting the two longitudinal beams. The crossbeams are spaced 1200mm apart. One side of the channel body 4 rests on the trestle, while the other side is welded to the lattice column 6. Rebar heads are welded to the channel steel longitudinal beam 11 to facilitate the later installation of the steel pipe guard 2. The steel pipe guard 2 is equipped with horizontal bars no less than 1.2m high, and a safety net is installed outside the horizontal bars. After the frame construction of the channel body 4 is completed, longitudinal steel pipes are placed on the channel steel crossbeams 10, ensuring that the spacing between the steel pipes is less than 400mm. The scaffolding is constructed of 50mm-thick fir or pine wood planks, 2-6m long and 200mm wide. The material should comply with the Class II material requirements of the current national standard "Structural Design Code." Two 8# lead wire hoops are used at each end to ensure the scaffolding is not loose.

[0016] The above is only an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent scheme made using the contents of the present invention specification, directly or indirectly used in other related technical fields, is also within the patent protection scope of the present invention.

Claims

1. A large-span tower crane channel, characterized in that: It includes a channel body, which is connected to the concrete base of the tower crane through a steel pipe ladder. Steel pipe protection is provided on both sides of the channel body and the steel pipe ladder. A channel steel corbel is provided between the bottom of the steel pipe ladder and the lattice column of the tower crane. A scaffolding board is provided on the upper surface of the channel body.

2. The long-span tower crane channel according to claim 1, characterized in that: The channel body includes two channel steel longitudinal beams, and the two channel steel longitudinal beams are connected by a plurality of channel steel cross beams.

3. The long-span tower crane channel according to claim 2, characterized in that: A plurality of longitudinal steel pipe cores are provided on the plurality of channel steel beams.

4. The long-span tower crane channel according to any one of claims 1 to 3, characterized in that: A bottom plate is provided at the lower end of the lattice column.

5. The long-span tower crane passage according to claim 4, characterized in that: A cross brace is provided at the lower end of the base plate.

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