Foundation conversion joint for tower crane

Abstract

The utility model discloses a foundation conversion joint for a tower crane, which comprises a main component, the main component consists of a first main component and a second main component, the lower sides of the end parts of the first main component and the second main component are connected with a lower bottom plate, and the lower bottom plate is provided with a first connecting hole used for being connected with a concrete foundation; upper panels are arranged on the upper sides of the ends of the first main component and the second main component, and second connecting holes used for being connected with the tower crane are formed in the upper panels. Compared with the prior art, the utility model has the beneficial effects that the conversion joint construction operation is portable and simple; the field installation is labor-saving, labor-saving and time-saving, the flexibility is obviously improved, and the loading and unloading cost is low; the original tower crane foundation is not damaged, so that the construction period is greatly shortened; the original tower crane foundation can be utilized, and the conversion joint can be recycled when the tower crane is dismounted, so that the economic benefit is greatly improved, and the material, labor, machinery and other costs are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting machinery, in particular to a foundation conversion section for a tower crane. Background Technique

[0002] With the increasing development of transportation machinery and the rapid progress of science and technology, the technical requirements for transportation and hoisting machinery are also getting higher and higher. At the construction site, the vertical transportation of materials and components basically relies on tower cranes. When installing a tower crane, usually the foundation section of the tower crane is installed and connected to a pre-cast embedded bolt type or fixed leg type concrete foundation. For a tower crane that needs to lift large materials, a base needs to be installed on the concrete foundation, and the lower part of the foundation section of the tower crane is connected to the concrete foundation through the base to increase the stability of the tower crane. If for some reason the model of the tower crane needs to be changed, the traditional method is to demolish the original tower crane foundation and then re-make a foundation that matches the new tower crane model for installation, which is time-consuming, costly, and affects the construction progress. Content of the Utility Model

[0003] In order to solve the above technical problems, the utility model provides a foundation conversion section for a tower crane, which is used to connect the original tower crane foundation and the new tower crane to be installed, so that the new tower crane and the original foundation are connected as a whole, without demolishing the original crane foundation, reducing the labor intensity of workers and lowering the construction cost.

[0004] To achieve this technical purpose, the utility model adopts the following scheme:

[0005] A foundation conversion section for a tower crane includes a main member, which is composed of a first main member and a second main member. The lower sides of the ends of the first main member and the second main member are connected with a lower bottom plate, and the lower bottom plate is provided with first connection holes for connecting with the concrete foundation. The upper sides of the ends of the first main member and the second main member are provided with an upper panel, and the upper panel is provided with second connection holes for connecting with the tower crane.

[0006] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0007] ① The conversion section can be designed and manufactured by a qualified processing factory, and the construction operation is light, simple and convenient;

[0008] ② The on-site installation saves labor, time and effort, and the flexibility is significantly improved, and the loading and unloading cost is low;

[0009] ③ There is no need to damage the original tower crane foundation and re-make the foundation, which greatly shortens the construction period and reduces the time for processes such as damaging the foundation, making the foundation, and curing the concrete;

[0010] ④ It is possible to utilize the existing tower crane foundation and recycle the conversion section when demolishing the tower crane, which greatly improves economic efficiency and saves costs such as materials, labor, and machinery.

[0011] Further, the first main member and the second main member are channel steel or I-beam steel.

[0012] Further, the first main member and the second main member are fixedly connected, and a connecting plate is arranged at the connection part of the first main member and the second main member.

[0013] Further, reinforcing plates are arranged on the side surfaces of the ends of the first main member and the second main member.

[0014] Further, end plates are arranged at the ends of the first main member and the second main member, and the end plates are respectively connected to the lower bottom plate and the upper top plate.

[0015] Further, a first support plate and a second support plate are arranged between the lower bottom plate and the upper top plate, and the first support plate and the second support plate are arranged perpendicular to each other and connected to the end plates. Description of the Drawings

[0016] Figure 1 Schematic diagram of the foundation conversion section for the tower crane in the embodiment of the present utility model;

[0017] Figure 2 is Figure 1 View A-A in

[0018] The marks in the figure are: 1, lower bottom plate; 101, first connection hole; 2, reinforcing plate; 3, upper top plate; 301, second connection hole; 4, first support plate; 5, second support plate; 6, end plate; 7, connecting plate; 8, first main member; 9, second main member. Specific Embodiments

[0019] To fully understand the purpose, features, and effects of the present utility model, the following specific embodiments are used to make a detailed description of the present utility model, but the present utility model is not limited thereto.

[0020] It should be noted that when an element is referred to as being "fixed to" or "arranged on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" or "laid on" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0021] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" and "several" is two or more, unless otherwise specifically defined.

[0023] See Figure 1 and Figure 2 As shown in and, the present utility model provides a foundation conversion section for a tower crane, which includes a main member. The main member is composed of a first main member 8 and a second main member 9. The first main member 8 and the second main member 9 are fixedly connected. A connecting plate 7 is provided at the connection between the first main member 8 and the second main member 9 to further ensure the stability of the connection between the first main member 8 and the second main member 9. Reinforcing plates 2 are provided on the side surfaces of the ends of the first main member 8 and the second main member 9. End plates 6 are provided at the ends of the first main member 8 and the second main member 9. A lower bottom plate 1 is connected to the lower side of the end plate 6. First connection holes 101 for connecting to a concrete foundation are provided on the lower bottom plate 1. An upper panel 3 is provided on the upper side of the end plate 6. Second connection holes 301 for connecting to a tower crane are provided on the upper panel 3. A first support plate 4 and a second support plate 5 are provided between the lower bottom plate 1 and the upper panel 3. The first support plate 4 and the second support plate 5 are perpendicularly arranged and connected to the end plate 6.

[0024] Furthermore, the first main member 8 and the second main member 9 are channel steels or I-beams.

[0025] In some embodiments, the foundation conversion section for a tower crane is made of various types of steel plates and channel steels according to the technical solutions, technical requirements, and drawing designs.

[0026] Among them, both the first main member 8 and the second main member 9 are made of Q235B channel steel 18a, and the remaining components are made of Q355B steel plates. The thickness of the lower bottom plate 1 and the upper panel 3 is 30 mm, the thickness of the reinforcing plates 2 and the connecting plate 7 is 8 mm, and the thickness of the first support plate 4, the second support plate 5, and the end plate 6 is 25 mm.

[0027] The first main member 8 consists of two channel steels with a length of 2283 mm, and the second main member 9 consists of four channel steels with a length of 1030 mm. The second main member 9 is perpendicularly connected to the first main member 8, and a connecting plate 7 is welded at the connection to ensure the strength of the main member. The size of the connecting plate 7 is 220 mm × 140 mm.

[0028] Reinforcing plates 2 are arranged on the inner sides of the end channel steels of the first main member 8 and the second main member 9. End plates 6 are connected to the ends of the first main member 8 and the second main member 9. A lower bottom plate 1 and an upper top plate 3 are respectively welded on the upper and lower sides of the end plate 6. A first support plate 4 and a second support plate 5 are installed between the lower bottom plate 1 and the upper top plate 3.

[0029] The diameters of the lower bottom plate 1 and the upper top plate 3 are 450 mm. The size of the reinforcing plate 2 is 135 mm × 400 mm. The size of the first support plate 4 is 180 mm × 336 mm. The size of the second support plate 5 is 180 mm × 146 mm. The size of the end plate 6 is 180 mm × 408 mm. The size of the connecting plate 7 is 220 mm × 140 mm.

[0030] Technical requirements for the production of the conversion section: 1. Strictly ensure the dimensional accuracy requirements of the tolerances and check by measuring the diagonal error; 2. The conversion section frame body shall be square in welding, and the flatness of the four corners shall be less than 2 mm; 3. The welding consumables shall be E50-6, and carbon dioxide gas shielded welding shall be used. The welds shall be full, and defects such as incomplete penetration, slag inclusion, and porosity are not allowed; 4. To ensure the safe and reliable use of the conversion section frame body, in addition to connecting with the original embedded leg bolts, the embedded leg angle steel shall be welded to the lower bottom plate 1 of this conversion section frame body on the site around, and the weld height shall not be less than 13 MM; the upper top plate 3 of this conversion section frame body shall be connected to the lower part of the tower crane to be installed by high-strength bolts of specification M39*160 grade 8.8.

[0031] Technical principle of the design of the present utility model: Due to the differences in the foundation, according to the relevant technical parameters of the tower crane to be installed, that is, the maximum bending moment and the maximum gravity in the non-working state, the maximum single-leg tension, the neutral axis pressure, and the maximum single-leg pressure of the tower crane can be calculated. According to the relevant provisions of the "Tower Crane Design Code" GB / T13752-2017, the allowable stress of the tower crane in the non-working state is known. The material used for the conversion section of the present utility model is Q355B, that is, the allowable stress of the material is also known. Through calculation and comparison, the safety and reliability of this conversion section can be known.

[0032] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0033] ① The conversion section can be designed and manufactured by an external qualified processing factory, and the construction operation is light and simple;

[0034] ②On-site installation saves labor, time, and effort, significantly improves flexibility, and has low loading and unloading costs;

[0035] ③There is no need to damage the original tower crane foundation and re-make the foundation, which greatly shortens the construction period and reduces the time for processes such as damaging the foundation, making the foundation, and curing concrete;

[0036] ④The original tower crane foundation can be utilized, and the conversion section can be recycled when the tower crane is demolished, which greatly improves economic benefits and saves costs for materials, labor, machinery, etc.

[0037] Finally, it should be noted that the above-listed are only the preferred embodiments of the present utility model. Of course, those skilled in the art can make changes and modifications to the present utility model. If these modifications and variations fall within the scope of the claims of the present utility model and its equivalent technologies, they should all be considered within the protection scope of the present utility model.

Claims

1. A foundation conversion section for a tower crane, comprising a main member, the main member being composed of a first main member (8) and a second main member (9), characterized in that, The lower sides of the ends of the first main member (8) and the second main member (9) are connected to a lower bottom plate (1). A first connection hole (101) for connecting to a concrete foundation is provided on the lower bottom plate (1). The upper sides of the ends of the first main member (8) and the second main member (9) are provided with an upper panel (3). A second connection hole (301) for connecting to a tower crane is provided on the upper panel (3).

2. The base conversion section for tower crane according to claim 1, characterized in that, The first main member (8) and the second main member (9) are channel steels or I-beams.

3. The base conversion section for tower crane according to claim 1, characterized in that, The first main member (8) and the second main member (9) are fixedly connected, and a connecting plate (7) is provided at the connection of the first main member (8) and the second main member (9).

4. The base conversion section for tower crane according to claim 1, characterized in that, Reinforcing plates (2) are provided on the side surfaces of the ends of the first main member (8) and the second main member (9).

5. The base conversion section for tower cranes according to claim 1, characterized in that, End plates (6) are provided at the ends of the first main member (8) and the second main member (9), and the end plates (6) are respectively connected to the lower bottom plate (1) and the upper panel (3).

6. The base conversion section for tower cranes according to claim 1, characterized in that, A first support plate (4) and a second support plate (5) are provided between the lower bottom plate (1) and the upper panel (3). The first support plate (4) and the second support plate (5) are perpendicularly arranged and connected to the end plates (6).

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