Large-span cantilever structure supporting base

Abstract

The utility model relates to the technical field of large-span cantilever structure supporting, and particularly discloses a large-span cantilever structure supporting base which comprises four supporting units arranged in parallel in a 2 * 2 rectangular array. A connecting beam is fixedly arranged between every two adjacent supporting units. A fixed beam is arranged between the connecting beams; each supporting unit comprises a plurality of I-shaped steel; and the I-shaped steel is welded into a tian-shaped frame structure. Compared with the prior art, through the arrangement of the four supporting units, the connecting beams and the fixing beams, the load of the large-span cantilever structure can be shared and transmitted to the ground or the low-altitude position, stable supporting of the large-span cantilever structure is achieved, and structural damage to the ground or the low-altitude position is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of large-span cantilever structure supports, and specifically discloses a support base for a large-span cantilever structure. Background Art

[0002] The overall lifting technology of large-span cantilever structures is to prefabricate the cantilever structure on the ground or at low altitude, and then use lifting equipment to lift it as a whole to the designed position, so as to realize the construction of large-span cantilever structures. This technology not only improves the construction efficiency, reduces the risk of high-altitude operations, but also ensures the construction quality and precision. Through the overall lifting, the structural deformation and connection problems that may be brought about by piecemeal or sectional lifting are avoided. It is applicable to various complex large-span cantilever structures, such as high-rise building corridors, large stadium roofs, etc.

[0003] Traditional support methods for cantilever structures usually adopt temporary supports composed of tower crane standard sections or cantilever scaffolding, etc., but these methods have many deficiencies. The cantilever scaffolding has problems such as poor stability and insufficient load-bearing capacity, and it is difficult to meet the construction requirements of large-span cantilever structures. When the tower crane standard section is fixed, it is fixed by pre-buried anchor bolts, and the load of the separately set tower crane standard section is limited, which is likely to cause damage to the structure at the ground or low-altitude position. Summary of the Utility Model

[0004] Aiming at the above deficiencies of the prior art, the utility model provides a support base for a large-span cantilever structure to solve the problem that the load of the separately set tower crane standard section is limited and it is likely to cause damage to the structure at the ground or low-altitude position.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A support base for a large-span cantilever structure includes four support units arranged parallel to each other in a 2×2 rectangular array; a connecting beam is fixedly arranged between adjacent two support units; a fixing beam is arranged between the connecting beams; each support unit includes several I-beams; several I-beams are welded into a cross-shaped frame structure. The settings of the four support units, the connecting beam and the fixing beam can distribute and transfer the load of the large-span cantilever structure to the ground or the low-altitude position, realize the stable support of the large-span cantilever structure, and reduce the damage to the structure at the ground or low-altitude position.

[0007] Preferably, several I-beams include four I-beam frames; the four I-beam frames are welded into a square structure; a connecting I-beam is fixedly arranged between two relatively arranged I-beam frames; both sides of the middle of the connecting I-beam are connected to the middle parts of the remaining two I-beam frames through support I-beams. It can ensure the load sharing of the support unit.

[0008] Preferably, one end of an I-beam frame is welded to the side of the end of another I-beam frame; two through holes are provided on the flange plate at the end of the I-beam frame. The upper flange plate of the I-beam frame uses bolts to pass through the through holes, which is convenient for connecting with the tower crane standard section; the lower flange plate of the I-beam frame uses chemical bolts to pass through the through holes, which is convenient for connecting with the ground or low-altitude positions.

[0009] Preferably, the two through holes are respectively arranged on both sides of the web of the I-beam frame. This ensures stable connection and is conducive to load sharing.

[0010] Preferably, the connecting beam is welded to the middle of the side of the support unit. This ensures the firm structure of the support base of the large-span cantilever structure and is convenient for load sharing.

[0011] Preferably, the fixed beam includes a vertical I-beam and two horizontal I-beams; the two horizontal I-beams are respectively welded and fixed on both sides of the vertical I-beam; the fixed beam is integrally arranged in a cross shape; the end of the fixed beam is welded to the middle of the side of the connecting beam. This further ensures the firm structure of the support base of the large-span cantilever structure and is convenient for load sharing.

[0012] The beneficial effects of the present utility model are as follows: the setting of the four support units, the connecting beam and the fixed beam can distribute and transfer the load of the large-span cantilever structure to the ground or low-altitude positions, realize the stable support of the large-span cantilever structure, and reduce the structural damage to the ground or low-altitude positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a structural schematic diagram of the present utility model;

[0015] Figure 2 It is a front view schematic diagram of the support unit of the present utility model;

[0016] Figure 3 It is a bottom view schematic diagram of the support unit of the present utility model.

[0017] Description of the reference numerals:

[0018] 1 - connecting beam, 2 - fixed beam, 3 - I-beam frame, 4 - connecting I-beam, 5 - support I-beam;

[0019] 201 - vertical I-beam, 202 - horizontal I-beam; 301 - through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to enable those skilled in the art to better understand the technical solutions in the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] As Figures 1-3 shown, a support base for a large-span cantilever structure includes four support units arranged in a 2×2 rectangular array and parallel to each other; a connecting beam 1 is fixedly arranged between adjacent two support units; a fixed beam 2 is arranged between the connecting beams 1; each support unit includes a plurality of I-beams; the plurality of I-beams are welded into a square frame structure. The arrangement of the four support units, the connecting beam 1 and the fixed beam 2 can distribute and transfer the load of the large-span cantilever structure to the ground or a low-altitude position, realizing the stable support of the large-span cantilever structure and reducing the structural damage to the ground or a low-altitude position.

[0022] In the above arrangement, the plurality of I-beams include four I-beam frames 3; the four I-beam frames 3 are welded into a square structure; a connecting I-beam 4 is fixedly arranged between two relatively arranged I-beam frames 3; both sides of the middle of the connecting I-beam 4 are connected to the middle parts of the remaining two I-beam frames 3 through support I-beams 5, which can ensure the load sharing of the support unit. One end of an I-beam frame 3 is welded to the side of the end of another I-beam frame 3; two through holes 301 are arranged on the wing plate at the end of the I-beam frame 3. The upper wing plate of the I-beam frame 3 is connected to the tower crane standard section by bolts passing through the through holes 301; the lower wing plate of the I-beam frame 3 is connected to the ground or a low-altitude position by chemical bolts passing through the through holes 301. The two through holes 301 are respectively arranged on both sides of the web of the I-beam frame 3. Ensure the stability of the connection and is conducive to load sharing. The connecting beam 1 is welded to the middle part of the side of the support unit, ensuring the firm structure of the support base of the large-span cantilever structure and facilitating the load sharing.

[0023] Among them, the fixed beam 2 includes a vertical I-beam 201 and two horizontal I-beams 202; the two horizontal I-beams 202 are respectively welded and fixed on both sides of the vertical I-beam 201; the fixed beam 2 is integrally arranged in a cross shape; the end of the fixed beam 2 is welded to the middle part of the side of the connecting beam 1, further ensuring the firm structure of the support base of the large-span cantilever structure and facilitating the load sharing.

[0024] Through the reasonable setting of the support base of the large-span overhanging structure, the load of the large-span overhanging structure is distributed and transferred to the ground or a low-altitude position, and the operation of pre-burying anchor bolts is avoided. The connection with the ground or a low-altitude position can be completed by using chemical bolts, reducing the construction process.

[0025] Although the present utility model has been described in detail by referring to the attached drawings and in combination with the preferred embodiments, the present utility model is not limited thereto. Without departing from the spirit and essence of the present utility model, those of ordinary skill in the art can make various equivalent modifications or substitutions to the embodiments of the present utility model, and these modifications or substitutions should all be within the scope of the present utility model. / Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the said claims.

Claims

1. A support base for a large-span cantilever structure, characterized in that, It includes four support units arranged in parallel in a 2×2 rectangular array; a connecting beam (1) is fixedly arranged between two adjacent support units; a fixed beam (2) is arranged between the connecting beams (1); each support unit includes a number of I-beams; the number of I-beams are welded into a grid-like frame structure.

2. The support base of the long-span cantilever structure according to claim 1, wherein The number of I-beams includes four I-beam frames (3); the four I-beam frames (3) are welded into a square structure; a connecting I-beam (4) is fixedly arranged between two relatively arranged I-beam frames (3); both sides of the middle of the connecting I-beam (4) are connected to the middle of the remaining two I-beam frames (3) through support I-beams (5).

3. The support base of the long-span cantilever structure according to claim 2, characterized in that, One end of an I-beam frame (3) is welded to the side of the end of another I-beam frame (3); two through holes (301) are arranged on the wing plate at the end of the I-beam frame (3).

4. The support base of the long-span cantilever structure according to claim 3, characterized in that The two through holes (301) are respectively arranged on both sides of the web of the I-beam frame (3).

5. The support base of the long-span cantilever structure according to claim 3, characterized in that, The connecting beam (1) is welded to the middle of the side of the support unit.

6. The support base of the long-span cantilever structure according to claim 4, characterized in that The fixed beam (2) includes a vertical I-beam (201) and two horizontal I-beams (202); the two horizontal I-beams (202) are respectively welded and fixed on both sides of the vertical I-beam (201); the fixed beam (2) is integrally arranged in a cross shape; the end of the fixed beam (2) is welded to the middle of the side of the connecting beam (1).

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