CN204079316U - A kind of harmless circular steel tube concrete post tower crane attachment anchor ear device - Google Patents

Abstract

The utility model discloses a non-destructive circular steel pipe concrete column tower crane attachment hoop device, which comprises a tower crane attachment rod (1) and an attachment device (2), and is characterized in that: the attachment device (2) is spliced by bolts (7) into a hoop; the attachment device (2) and the outer frame circular steel pipe column (4) are fixed with a connecting ear plate (5); the attachment device (2) is also provided with an attachment plate (6) and a stiffening plate (8). The non-destructive circular steel tube concrete column tower crane attachment hoop device can greatly reduce the construction difficulty of tower crane attachment, speed up the construction progress of attachment, save the construction period and reduce labor costs, and the attachment device is easy to install and disassemble, and can be used repeatedly. It greatly reduces the construction risk and construction cost, and brings great economic benefits to the project. This device is suitable for projects where the tower crane needs to be attached to the circular steel pipe column.

Description

A non-destructive circular steel tube concrete column tower crane attachment hoop device

technical field

The utility model relates to a building tower crane, in particular to a hoop attachment device for a non-destructive circular steel pipe concrete column tower crane, which belongs to the field of building construction.

Background technique

With the development of the construction industry, there are more and more high-rise buildings, most of which are built with a reinforced concrete core tube as the inner frame tube and a steel structure, rigid structure or reinforced concrete structure as the external frame. Considering the use function of the building itself, the use function of the inner frame of the reinforced concrete core tube is mostly various tube wells, machine rooms, stairs and elevator rooms, and the use function of the outer frame of the steel structure, stiff structure or reinforced concrete structure is mostly office Room. In order to pursue a large office space, the distance between the outer edge of the outer frame and the inner core tube is relatively large, most of which are more than 15m.

Because tower cranes are mainly used for material lifting and structural component hoisting, in order to facilitate installation, use, jacking and dismantling, most tower cranes of high-rise buildings are located outside the external frame, which makes the distance between the tower crane and the reinforced concrete core tube relatively long, traditional The method of attaching the tower crane to the reinforced concrete core tube needs to lengthen the attachment rod of the tower crane, which is not conducive to the force of the attachment rod, and the attachment rod will hinder the lifting of materials, which brings hidden dangers to the safe use of the tower crane. Therefore, it is the most ideal method to attach the tower crane to the steel pipe column of the outer frame, and the design of its attachment node becomes a big problem.

Utility model content

The problem to be solved by the utility model is to provide a construction tower crane, especially to provide a non-destructive circular steel tube concrete column tower crane attachment hoop device, which overcomes the above-mentioned problem that the traditional high-rise building tower crane is installed outside the outer frame and is difficult to attach.

The technical problem to be solved by the utility model is achieved by the following methods:

A non-destructive circular steel pipe concrete column tower crane attachment hoop device, comprising a tower crane attachment rod and an attachment device, the attachment device is spliced into a hoop through bolts; the attachment device and the outer frame circular steel pipe column are fixed with connecting lugs , to prevent the hoop from rotating on the circular steel pipe column of the outer frame, which will adversely affect the stress on the attachment rod of the tower crane; the attachment device is also provided with an attachment plate and a stiffening plate.

The tower crane attachment rod is connected to the attachment device, and is fixed up and down by two attachment plates.

Stiffening plates are respectively fixed under the upper attachment plate and the lower attachment plate to make the attachment more firm.

The ear plates are 5 welded ear plates.

The attachment device is arranged outside the circular steel pipe column of the outer frame.

The attachment device is connected with the tower crane through the tower crane attachment rod.

The bolts are high-strength bolts.

The attachment plate has three different connection modes on the attachment device.

The utility model adopts the above-mentioned technical scheme and has the following beneficial effects:

The non-destructive circular steel tube concrete column tower crane attachment hoop device can greatly reduce the construction difficulty of tower crane attachment, speed up the construction progress of attachment, save the construction period, reduce labor costs, and the attachment device is easy to install and disassemble, and can be used repeatedly. It greatly reduces the construction risk and construction cost, and brings great economic benefits to the project. This device is suitable for projects where the tower crane needs to be attached to the circular steel pipe column.

Attached content

Figure 1-1 is a side view of the front structure of the attachment device of the present invention

Figure 1-2 is a top view of Figure 1-1

Figure 1-3 is the front view of Figure 1-1

Figure 2-1 is a side view of the reverse structure of the attachment device of the present invention

Figure 2-2 is a top view of Figure 2-1

Figure 3-1 is a side view of another front structure of the attachment device of the present invention

Figure 3-2 is a top view of Figure 3-1

Figure 3-3 is the front view of Figure 3-1

Figure 4 is a large sample of the ear plate

Figure 5 is a schematic diagram of the attachment plate in Figure 1-3

Figure 6 is a schematic diagram of the attachment plate in Figure 3-3

Figure 7 is a schematic diagram of the overall structure of the utility model

In the figure, 1-tower crane attachment rod, 2-attachment device, 3-bolt, 4-outer frame circular steel pipe column, 5-ear plate, 6-attachment plate, 7-bolt, 8-stiffening plate.

Detailed ways

Figure 1-1, Figure 1-2, Figure 1-3, Figure 2-1, Figure 2-2, Figure 3-1, Figure 3-2, Figure 3-3, Figure 4, Figure 5, Figure 6 , a non-destructive circular steel pipe concrete column tower crane attachment hoop device shown in Figure 7, including tower crane attachment rod 1, attachment device 2, latch 3, outer frame circular steel pipe column 4, lug plate 5, attachment plate 6, bolts 7. Stiffening plate 8.

In actual installation, the tower crane attachment requires three tower crane attachment rods 1 to connect with the outer frame circular steel pipe column 4, two of the tower crane attachment rods 1 are attached to the same outer frame circular steel pipe column 4, and the other tower crane attachment rod 1 is attached to another frame circular steel pipe column 4. The attachment device 2 needs to open 3 holes on the attachment plate 6 for connecting with the attachment rod, 2 holes are opened on one attachment plate 6 , and 1 hole is opened on the other attachment plate 6 . The attachment device 2 is spliced by two semicircles, as shown in Fig. 1-1 is a half front view, 1-2 is a top view, Fig. 1-1 and Fig. 1-2 both have a single hole for the attachment plate 6 , is the front of the semicircle; Figure 3-1 is a half front view, 3-2 is a top view, both Figure 3-1 and Figure 3-2 are double-hole attachment plate 6, which is also a semicircle front; Figure 2-1 It is the front view of the other half, and 2-2 is the top view of the other half, and what this figure represents is the opposite side of the semicircle. This part is independent of the number of holes on the attachment plate 6, that is to say universal.

In this project, since the 1# tower crane and the 3# tower crane are located far away from the core tube, about 30m, it is difficult to achieve safe attachment to the core tube and the attachment is difficult. The circular steel pipe column 4 of the outer frame, but considering the influence of the force attached to the circular steel pipe column 4 of the outer frame and the steel frame, the attachment device 2 attached to the plane straight wall is improved and innovated, and the high-strength bolt 7 is used to The attachment device 2 is spliced into the form of a hoop. In order to prevent the attachment device 2 from rotating, each attachment device 2 is welded with 5 ear plates 5, and a part of the ear plate 5 is welded on the circular steel pipe column 4 of the outer frame. A part is welded on the attachment device 2 . Finally, the tower crane attachment rod 1 is connected and fixed with the attachment device 2, which effectively avoids welding on the steel pipe column and cutting during later disassembly, and achieves the effect of non-destructive attachment.

The diameter of the steel pipe column at the attachment point of the tower crane in this project is 1200mm, the distance between the tower crane and the attachment point is about 12.0m, and the maximum attachment rod length is 13.65m. According to the instruction manual of the tower crane, the analysis of the force state of the attachment device 2 under various working conditions of the tower crane shows that the maximum force of the attachment rod is about 61.3t. ETABS and PKPM are used for modeling and calculation respectively, and the two are finally used for calculation. The maximum value is analyzed, and the attachment device can be processed according to the processing drawing of the attachment device to meet the force requirements, and it will not affect the stability of the completed CFST columns and steel beams.

After on-site implementation, the attachment device has been successfully applied to the 1# tower crane and the 3# tower crane in this project. After testing the force and the displacement detection during the use of the tower crane, the tower crane after using the attachment device fully meets the use specifications.

It should be noted that the above-mentioned embodiments are only one of the selected specific implementation modes of the present utility model, rather than limiting the implementation modes. For those skilled in the art, other changes in different forms can also be made on the basis of the above description. The obvious changes and substitutions derived therefrom shall be included in the protection scope of the present utility model.

Claims (8)

1. A non-destructive circular steel tube concrete column tower crane attachment hoop device, comprising a tower crane attachment rod (1) and an attachment device (2), characterized in that: the attachment device (2) is spliced into a hoop by bolts (7) ; The attachment device (2) and the outer frame circular steel pipe column (4) are fixed with a connecting ear plate (5); the attachment device (2) is also provided with an attachment plate (6) and a stiffening plate (8) up and down . 2. The non-destructive circular steel tube concrete column tower crane attachment hoop device according to claim 1, characterized in that: the tower crane attachment rod (1) is connected to the attachment device (2), and the upper and lower parts are attached by two pieces The plate (6) is fixed. 3. The non-destructive circular steel tube concrete column tower crane attachment hoop device according to claim 1, characterized in that: the upper attachment plate (6) and the lower attachment plate (6) are respectively fixed with stiffening plates (8) . 4. The non-destructive circular steel tube concrete column tower crane attachment hoop device according to claim 1, characterized in that: the lugs (5) are 5 welded lugs. 5. The non-destructive circular steel pipe concrete column tower crane attachment hoop device according to claim 1, characterized in that: the attachment device (2) is arranged outside the outer frame circular steel pipe column (4). 6. The attachment hoop device for the tower crane of the non-destructive round concrete-filled steel tube column according to claim 1, characterized in that: the attachment device (2) is connected to the tower crane through the tower crane attachment rod (1). 7. The non-destructive circular concrete-filled steel tube tower crane attachment hoop device according to claim 1, characterized in that: the bolts (7) are high-strength bolts. 8. The attachment hoop device of the non-destructive circular steel pipe concrete column tower crane according to claim 1, characterized in that: the attachment plate (6) has three different connection modes on the attachment device (2).