Cantilever profile steel lower supporting device

Abstract

The utility model discloses a cantilever profile steel lower supporting device, and belongs to the technical field of building engineering construction. The device comprises overhanging profile steel and lower supporting profile steel. The overhanging profile steel is horizontally fixed on a main body structure of the overhanging layer and partially extends out of a structure edge beam of the overhanging layer; one end of the lower supporting profile steel is fixedly connected with one end of the cantilever profile steel extending out of the cantilever layer structure edge beam, and the other end of the lower supporting profile steel is fixedly connected with the angle steel located on the supporting layer main body structure; the supporting layer is located on the lower layer of the cantilever layer. A wood wedge is inserted into the bottom of the end, connected with the angle steel, of the lower supporting profile steel and fixed to the main body structure of the supporting layer. The overall stability of the overhanging structure and the overhanging layer is guaranteed, main materials are convenient to select, economical and environmentally friendly, and lower supporting construction is convenient, fast, time-saving and labor-saving.

Description

Technical Field

[0001] The utility model belongs to the technical field of building engineering construction, and specifically relates to a cantilever steel lower support device. Background Art

[0002] During the construction process, the cantilever steel is commonly used as external scaffolding, isolation protection layer, cantilever platform and other cantilever components. In order to ensure the overall stability of the structure, the on-site pull-up method is used to ensure the safety of the cantilever components. The pull-up method requires the steel wire rope or steel to be tied to the structure of the upper layer of the cantilever layer; when the main structure of the upper layer of the cantilever steel is not completed or does not meet the tie-up force conditions, the pull-up method cannot be implemented.

[0003] When the upward pull cannot be achieved, the lower support steel is used, that is, the steel triangle support is installed on the lower structure of the cantilever layer. If the vertical components (walls, columns) at the connection between the cantilever steel and the main structure are non-concrete structures, there is no effective support point between the steel triangle support and the vertical components of the main structure. The lower support point needs to be placed on the side beam of the lower structure to ensure the force safety of the cantilever structure. This practice results in a large amount of steel waste.

[0004] Therefore, it is urgent to provide a new cantilever steel lower support device. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects in the prior art and provide a cantilever steel support device, which solves the problem of cantilever steel without tie conditions under the condition of ensuring the overall stability of the cantilever structure and the cantilever layer, and avoids the waste of steel caused by the lack of effective fulcrum points on the vertical components of the main structure of the building due to the triangular support of the cantilever steel. At the same time, the device structure and its support components can be processed and manufactured from steel scraps on the construction site, which is economical and environmentally friendly, and the support construction is convenient, saving time and effort.

[0006] The specific technical solutions adopted by this utility model are as follows:

[0007] The utility model provides a cantilever steel lower support device, comprising a cantilever steel and a lower support steel; the cantilever steel is horizontally fixed on the main structure of the cantilever layer, and partially extends out of the structural side beam of the cantilever layer; one end of the lower support steel is fixedly connected to one end of the cantilever steel extending out of the structural side beam of the cantilever layer, and the other end is fixedly connected to an angle steel located on the main structure of the supporting layer; the supporting layer is located below the cantilever layer; a wooden wedge is inserted into the bottom of one end of the lower support steel connected to the angle steel, and the wooden wedge is fixed to the main structure of the supporting layer.

[0008] Preferably, the lower support steel is fixedly connected to the cantilever steel by connecting bolts.

[0009] Preferably, the angle steel is connected to the structural side beam of the next layer located at the cantilever layer through expansion bolts.

[0010] Preferably, the lower support steel is welded to the angle steel.

[0011] Preferably, the wooden wedges are fixed to the supporting layer by cement nails.

[0012] Preferably, the cantilever steel is connected to the main structure of the cantilever layer by anchoring or pre-embedding.

[0013] Preferably, the lower support steel is square steel, channel steel or H-shaped steel.

[0014] Preferably, two lower support steel sections are provided in parallel and are located on both sides of the cantilever steel section respectively.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model provides a cantilever steel lower support device, which ensures the overall stability of the cantilever structure and the cantilever layer. The main material selection is convenient, economical and environmentally friendly, and the lower support construction is convenient, saving time and labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the front and side structure of a cantilever steel lower support device;

[0018] Figure 2 It is a schematic diagram of the reverse side structure of a cantilever steel lower support device;

[0019] Figure 3 It is a front structural schematic diagram of a cantilever steel lower support device (including two lower support steels);

[0020] Figure 4 It is a front structural schematic diagram of a cantilever steel lower support device (including a lower support steel);

[0021] Figure 5 Schematic diagram of the structure of (a) cantilever steel, (b) lower support steel and (c) angle steel (left is the front view, right is the side view);

[0022] The reference numerals in the figure are: cantilever steel 1, lower support steel 2, connecting bolts 3, expansion bolts 4, angle steel 5, wooden wedges 6, and cement nails 7. DETAILED DESCRIPTION

[0023] The present invention is further described and illustrated below in conjunction with the accompanying drawings and specific implementations. The technical features of each implementation of the present invention can be combined accordingly without conflicting with each other.

[0024] like Figures 1 to 4 As shown, a cantilever steel lower support device provided by the utility model is provided, and the device mainly comprises a cantilever steel 1 and a lower support steel 2.

[0025] The structure and connection method of each component will be described in detail below.

[0026] In the present invention, the cantilever steel 1 is horizontally fixed to the main structure of the cantilever layer, and an effective connection is achieved between the two. A part of the cantilever steel 1 extends out of the structural side beam of the cantilever layer, such as Figure 1 and 2 shown.

[0027] As a preferred embodiment of the present invention, the cantilever steel 1 is effectively connected to the main structure of the cantilever layer by means of shelving + anchoring or pre-embedding.

[0028] In the present invention, one end of the lower support steel 2 is fixedly connected to one end of the cantilever steel 1 extending out of the cantilever layer structure side beam, and the other end is fixedly connected to the angle steel 5 located on the main structure of the support layer. The support layer is located below the cantilever layer, such as Figure 1 shown.

[0029] As a preferred embodiment of the utility model, the lower support steel 2 is fixedly connected to the cantilever steel 1 by connecting bolts 3 (i.e., ordinary bolts), the angle steel 5 is connected to the side beam of the structure of the next layer located at the cantilever layer by expansion bolts 4, and the lower support steel 2 is welded to the angle steel 5. The structure of the cantilever steel, the lower support steel and the angle steel in this embodiment is as follows: Figure 5 As shown, of course, the structure of each component can be adjusted as needed without affecting the use effect.

[0030] As a preferred embodiment of the present invention, the main material of the lower support steel 2 can be square steel, channel steel or H-shaped steel, etc., and the steel selected is the waste steel from the construction site. In general scenarios, a lower support steel is often used to support the cantilever steel, such as Figure 4 However, if the cantilever steel is subjected to heavy forces and one lower support steel cannot guarantee its stability, two lower support steels are used for support, such as Figure 3 As shown, two lower support steels 2 are arranged in parallel on both sides of the cantilever steel 1.

[0031] As a preferred embodiment of the utility model, the lower support steel and the cantilever steel are both provided with small holes at their cantilevered ends, the diameter of the small holes is slightly larger than the diameter of the connecting bolts, and the connecting bolts are used to insert the connecting bolts to achieve the fixation of the lower support steel and the cantilever steel. The angle steel is provided with two small holes, the diameter of the small holes is slightly larger than the expansion bolts, and the expansion bolts are used to insert the expansion bolts to connect with the structural side beams of the supporting layer.

[0032] In the present invention, a wooden wedge 6 is inserted into the bottom of one end of the lower support steel 2 connected to the angle steel 5, that is, a wooden wedge is inserted into the connection between the lower support steel and the main structure. The wooden wedge 6 is fixed to the main structure of the supporting layer and can be fixed to the supporting layer by cement nails 7.

[0033] As a preferred embodiment of the utility model, the wooden wedge is made of leftover wood from the construction site, and is inserted into the connection between the lower support steel and the main structure after the welding of the lower support steel and the angle steel is completed.

[0034] The utility model solves the problem of cantilever steel without tie conditions while ensuring the overall stability of the cantilever structure and cantilever layer, and avoids the waste of steel caused by the lack of effective fulcrum points on the vertical components of the main structure of the building due to the triangular support of the lower support steel. At the same time, the device structure and its supporting components can be processed and manufactured from steel scraps on the construction site, which is economical and environmentally friendly, and the lower support construction is convenient, saving time and effort.

[0035] The above-described embodiment is only a preferred solution of the present invention, but it is not intended to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present invention.

Claims

1. A cantilever steel support device, characterized in that: It comprises a cantilever steel (1) and a lower support steel (2); the cantilever steel (1) is horizontally fixed on the main structure of the cantilever layer, and partially extends out of the structural side beam of the cantilever layer; one end of the lower support steel (2) is fixedly connected to one end of the cantilever steel (1) extending out of the structural side beam of the cantilever layer, and the other end is fixedly connected to an angle steel (5) located on the main structure of the support layer; the support layer is located at the lower layer of the cantilever layer; a wooden wedge (6) is inserted into the bottom of the end of the lower support steel (2) connected to the angle steel (5), and the wooden wedge (6) is fixed to the main structure of the support layer.

2. A cantilever steel support device according to claim 1, characterized in that: The lower support steel (2) is fixedly connected to the cantilever steel (1) via connecting bolts (3).

3. The cantilever steel support device according to claim 1, characterized in that: The angle steel (5) is connected to the structural side beam of the next layer located on the cantilever layer through expansion bolts (4).

4. The cantilever steel support device according to claim 1, characterized in that: The lower support steel (2) is connected to the angle steel (5) by welding.

5. The cantilever steel support device according to claim 1, characterized in that: The wooden wedges (6) are fixed on the supporting layer by cement nails (7).

6. The cantilever steel support device according to claim 1, characterized in that: The cantilever steel (1) is connected to the main structure of the cantilever layer by anchoring or pre-embedding.

7. The cantilever steel support device according to claim 1, characterized in that: The lower support steel (2) is square steel, channel steel or H-shaped steel.

8. The cantilever steel support device according to claim 1, characterized in that: Two lower support steel sections (2) are arranged in parallel and are respectively located on both sides of the cantilever steel section (1).

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