Super high-rise building tower crane attachment device free of hanging basket dismantling

Abstract

The utility model discloses a tower crane attachment device for a super high-rise building without dismounting a hanging basket, which comprises a back plate, a panel, an attachment lug plate, a screw rod and a screw cap, a bolt sleeve penetrating through a wall is pre-embedded during the construction of a main body structure, the panel and the back plate are connected with a building wall body through bolts, the attachment lug plate is welded on the panel, and the screw rod is welded on the back plate. The attaching lug plate is used for being connected with an attaching rod of a tower crane, the nut is fixed to the panel, a penetrating hole is formed in the panel, and the screw penetrates through the nut and the penetrating hole and then is connected with a bolt sleeve in a wall. When the tower crane is used for dismantling, the attachment device is synchronously dismantled, the nut and the back plate are dismantled in the floor, and the attachment rod of the tower crane and the attachment device are hoisted to the ground together by the tower crane and then dismantled, so that by means of the tower crane attachment device, the dismantling work can be completed in the floor, the dismantling efficiency is improved, and the high-altitude operation risk existing in the dismantling work is reduced; meanwhile, when the tower crane attachment device is dismantled, a hanging basket does not need to be additionally erected to serve as a dismantling operation tool, and the cost for leasing and installing the hanging basket is saved.

Description

A tower crane attachment device for super high-rise buildings that eliminates the need for scaffold dismantling. Technical Field

[0001] This utility model belongs to the field of building construction, and in particular relates to a tower crane attachment device for super high-rise buildings that does not require the removal of the suspended platform. Background Technology

[0002] Due to site layout limitations, many tower cranes need to be attached to the building's gable walls. Currently, the tower crane attachment devices at the gable walls require separate suspended platforms for dismantling, increasing the workload and safety hazards.

[0003] Therefore, it is necessary to develop a tower crane attachment device that does not require a suspended platform for dismantling, so as to achieve the removal of the tower crane attachment device at the gable wall without a suspended platform, thereby reducing the workload of dismantling the tower crane attachment device and the risks of high-altitude operations during the dismantling process. Summary of the Invention

[0004] The purpose of this utility model is to provide a tower crane attachment device for super high-rise buildings that can be dismantled without a suspended platform. This device can achieve the dismantling of the tower crane attachment device at the gable wall location without a suspended platform, thereby reducing the workload of dismantling the tower crane attachment device and the risks of high-altitude operations during the dismantling process.

[0005] This utility model is implemented as follows: a tower crane attachment device for super high-rise buildings that does not require the removal of the suspended platform includes a back plate, a front plate, attachment ear plates, a screw rod, and a nut. The front plate is connected to the back plate and the building wall by bolts. The attachment ear plates are welded to the front plate and are used to connect with the attachment rod of the tower crane. The nut is fixed to the front plate. The front plate has a through hole. The screw rod passes through the nut and the through hole and is connected to a bolt sleeve embedded in the wall.

[0006] In a preferred embodiment, the panel has a hexagonal recess for securing the nut.

[0007] In a preferred embodiment, limiting plates are provided on opposite sides of the hexagonal recess, the limiting plates being used to restrict the rotation of the nut.

[0008] In a preferred embodiment, the tower crane attachment device further includes a stiffening plate, the bottom surface of which is welded to the panel, and one side of which is welded to the attachment lug. The stiffening plate is used to strengthen the connection between the attachment lug and the panel.

[0009] In a preferred embodiment, the panel is provided with two sets of fixing units, which are arranged at intervals relative to each other and form a space between them for the attachment rod to extend into; each set of fixing units includes an attachment ear plate, two stiffening plates, two screws and two nuts.

[0010] In a preferred embodiment, the attachment lug has a connecting hole extending through its thickness, and the attachment lug is connected to the tower crane's attachment rod by inserting bolts into the connecting hole.

[0011] In a preferred embodiment, the bottom side of the stiffener has a triangular chamfer for accommodating solder, thereby enhancing the connection strength with the panel.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] The tower crane attachment device provided by this utility model includes a back plate, a front plate, attachment ear plates, a bolt, and a nut. During the construction of the main structure, through-wall bolt sleeves are pre-embedded. The front plate and back plate are connected to the building wall by bolts. The attachment ear plates are welded to the front plate and are used to connect with the tower crane's attachment rod. The nut is fixed to the front plate, which has through holes. The bolt passes through the nut and through the holes and connects to the bolt sleeves pre-embedded in the gable wall. During tower crane dismantling, the attachment device is dismantled simultaneously with the standard section. The back plate of the attachment device is dismantled within the floor, while the tower crane's attachment rod is lifted to the ground along with the attachment device and then dismantled. Therefore, by using the above-mentioned tower crane attachment device, dismantling work can be completed within the floor, improving dismantling efficiency and reducing the risks of high-altitude operations. Furthermore, this tower crane attachment device eliminates the need for additional suspended platforms as dismantling tools, saving on the cost of renting and installing suspended platforms. Attached Figure Description

[0014] Figure 1 is a front view of a tower crane attachment device for super high-rise buildings that does not require the removal of the suspended platform, provided in this embodiment.

[0015] Figure 2 is a top view of the tower crane attachment device shown in Figure 1;

[0016] Figure 3 is a side view of the tower crane attachment device shown in Figure 1;

[0017] Figure 4 is a structural schematic diagram of the back plate of a tower crane attachment device provided in this embodiment. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0020] Referring to Figures 1 to 4, this embodiment provides a tower crane attachment device for super high-rise buildings that does not require the removal of the suspended platform. The device includes a back plate, a front panel 1, attachment ear plates 2, screws, and nuts. The front panel 1 is connected to the back plate and the building wall by bolts. The attachment ear plates 2 are welded to the front panel 1. The attachment ear plates 2 have connecting holes 21 that penetrate their thickness direction. The attachment ear plates 2 are connected to the tower crane's attachment rod by inserting bolts into the connecting holes 21.

[0021] The nut is fixed on the panel 1, and the panel 1 has a through hole 11. The screw passes through the nut and the through hole 11 and is connected to the bolt sleeve embedded in the wall.

[0022] To secure the nut and prevent it from rotating when the screw is turned, a hexagonal recess 12 is provided on the panel 1 for securing the nut. The shape and size of the hexagonal recess 12 match the nut so that the nut can be perfectly inserted into the hexagonal recess 12. Furthermore, limiting plates 3 are provided on opposite sides of the hexagonal recess 12. These limiting plates 3 can spatially interfere with the sides of the nut, thereby restricting the rotation of the nut.

[0023] Furthermore, to enhance the connection strength between the attachment ear plate 2 and the panel 1, the attachment device in this embodiment also includes a stiffener 4. The bottom surface of the stiffener 4 is welded to the panel 1, and one side of the stiffener 4 is welded to the attachment ear plate 2. Preferably, the bottom of one side of the stiffener 4 is provided with a triangular chamfer for accommodating solder, so as to enhance the connection strength with the panel 1.

[0024] In this embodiment, the panel 1 is provided with two sets of fixing units, which are arranged at intervals relative to each other and form a space between them for the attachment rod to extend into; each set of fixing units includes an attachment ear plate 2, two stiffening plates 4, two screws and two nuts.

[0025] In the above welding methods, CO2 gas shielded automatic welding is used. Before welding, the flatness of all long plates after cutting should not exceed 1 / 1000. The double-sided fillet welds of the 30mm thick attached ear plate 2 and the panel 1 are all 21mm thick, and the double-sided fillet welds of the stiffening plate 5 are all 12mm thick. The remaining fillet welds are 10mm thick. The welds must be flat and full; there must be no defects such as cracks, slag inclusions, porosity, undercut, or arc craters. There should be no spatter residue in the welding area; all φ60 holes must be precision drilled.

[0026] During the construction of the main structure, high-strength bolt sleeves that penetrate the wall are pre-embedded according to the attachment position of the tower crane. The position is checked simultaneously during the pre-embedding process to ensure accurate positioning.

[0027] When the concrete strength reaches 75% of the design strength, the tower crane attachment device is installed using an attached lifting scaffold. Four M36 single-headed high-strength bolts with a strength grade of 10.9 and high-strength nuts of grade 10H are used, along with matching high-strength bolt washers. Each bolt is equipped with a double nut and the effective length of the bolt is 600mm.

[0028] When dismantling the tower crane, the attachment device is removed simultaneously with the standard section. The back plate of the attachment device is removed within the floor, while the tower crane's attachment rod is lifted to the ground along with the attachment device and then dismantled. It can be seen that by using the above-mentioned tower crane attachment device, the dismantling work can be completed within the floor, improving dismantling efficiency and reducing the risks of high-altitude operations during dismantling. In addition, the tower crane attachment device does not require the additional erection of a suspended platform as a dismantling tool, saving the cost of renting and installing a suspended platform.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tower crane attachment device for super high-rise buildings that eliminates the need for scaffolding dismantling, characterized in that, It includes a back plate, a front plate, attachment ear plates, a screw rod, and a nut. The front plate is connected to the back plate and the building wall by bolts. The attachment ear plates are welded to the front plate and are used to connect to the attachment rod of the tower crane. The nut is fixed to the front plate. The front plate has a through hole. The screw rod passes through the nut and the through hole and is connected to a bolt sleeve embedded in the wall.

2. The tower crane attachment device according to claim 1, characterized in that, The panel has a hexagonal recess for fixing the nut.

3. The tower crane attachment device according to claim 2, characterized in that, Limiting plates are provided on the opposite two sides of the hexagonal recess, and the limiting plates are used to restrict the rotation of the nut.

4. The tower crane attachment device according to claim 1, characterized in that, It also includes a stiffening plate, the bottom surface of which is welded to the panel, and one side of which is welded to the attachment ear plate. The stiffening plate is used to strengthen the connection between the attachment ear plate and the panel.

5. The tower crane attachment device according to claim 4, characterized in that, The panel is provided with two sets of fixing units, which are arranged at intervals relative to each other and form a space between them for the attachment rod to extend into; each set of fixing units includes an attachment ear plate, two stiffening plates, two screws and two nuts.

6. The tower crane attachment device according to any one of claims 1 to 5, characterized in that, The attachment lug is provided with a connecting hole that extends through its thickness direction. The attachment lug is connected to the attachment rod of the tower crane by inserting bolts into the connecting hole.

7. The tower crane attachment device according to claim 5, characterized in that, The bottom side of the stiffener has a triangular chamfer for accommodating solder, which strengthens the connection with the panel.

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