Connecting structure of steel structure overhaul layer

Abstract

The utility model provides a connecting structure of a steel structure overhaul layer, which comprises a platform steel davit, a cantilever beam, a connecting steel beam and a positioning connecting assembly, the other end of the cantilever beam abuts against the connecting steel beam and is fixedly connected with the connecting steel beam through the positioning connecting assembly. The cantilever beam can be welded to the platform steel davit in advance, the welding quality between the cantilever beam and the platform steel davit is improved, residual stress is reduced, meanwhile, the most unfavorable stress area is avoided, the safety risk of a hoisting platform is eliminated, and meanwhile the welding amount in the field hoisting construction process is reduced; due to the fact that the cantilever beam is arranged between the connecting steel beam and the platform steel davit, the distance between the connecting steel beam and the platform steel davit is long, hoisting is more convenient, the construction efficiency is improved, positioning is provided for butt joint and installation of the connecting steel beam through the positioning connecting assembly, and the construction efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the field of maintenance platform hoisting, in particular to a connection structure of a steel structure maintenance layer. Background Art

[0002] At present, the steel structure maintenance floor of conventional indoor large space usually has a small cross-sectional specification of structural components because the structural load is not large, and the components are directly connected by on-site welding. This conventional method has three significant defects: first, the steel structure platform is generally operated at high altitude, the amount of on-site welding is large, and the construction efficiency is low; second, the steel structure components are often thin-walled, and on-site welding is concentrated at the beam-column joints, which can easily cause component deformation and generate large residual stress, which is not conducive to structural stress and poses a greater safety risk; third, the beam-column connection nodes are all located on the side of the column, which will become a weak area of ​​the connection itself, and the installation tolerance is weak. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model proposes a connection structure for a steel structure maintenance layer to solve the above problems.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A connection structure of a steel structure maintenance layer, comprising a platform steel hanging column, a cantilever beam, a connecting steel beam and a positioning connection assembly, wherein one end of the cantilever beam is fixedly installed on the side of the platform steel hanging column, and the other end of the cantilever beam is abutted against the connecting steel beam and fixedly connected to the connecting steel beam through the positioning connection assembly.

[0006] Preferably, at least one cantilever beam is provided, and the cantilever beam is welded and fixed to the surface of the platform steel sling in a circular array along the axis of the platform steel sling.

[0007] Preferably, the platform steel suspension column is in the shape of a hollow cylinder, and a transverse partition is provided inside the platform steel suspension column.

[0008] Preferably, the positioning and connecting assembly includes a steel beam connecting plate, which is provided with a plurality of positioning holes; the cantilever beam is provided with a first through hole matching the positioning hole at one end close to the connecting steel beam, and is bolted to the steel beam connecting plate through the positioning hole and the first through hole; the connecting steel beam is provided with a second through hole matching the positioning hole at one end close to the cantilever beam, and is bolted to the steel beam connecting plate through the positioning hole and the second through hole.

[0009] Preferably, steel beam connecting plates are symmetrically provided on both sides of the cantilever beam.

[0010] Preferably, clamping plates are symmetrically welded at the top and bottom of the connection between the cantilever beam and the connecting steel beam.

[0011] Compared with the prior art, the utility model has the following advantages: the cantilever beam is pre-welded to the platform steel column, which is beneficial to improving the welding quality between the cantilever beam and the platform steel column and reducing residual stress, while avoiding the most unfavorable stress area, eliminating the safety risk of the lifting platform, and reducing the amount of welding during on-site lifting construction; since there is a cantilever beam between the connecting steel beam and the platform steel column, the distance between the connecting steel beam and the platform steel column is farther, making lifting more convenient and improving construction efficiency, and providing positioning for the connecting steel beam docking and installation through the positioning connection assembly, which further improves the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 This is a top view structural diagram of a connection structure of a steel structure maintenance layer of the utility model;

[0014] Figure 2 It is a front cross-sectional view of a connection structure of a steel structure maintenance layer of the utility model;

[0015] Figure 3 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0016] Figure 4 This is a schematic diagram of the installation of the card board;

[0017] Figure identification: 1-platform steel hanging column, 11-cross partition, 2-cantilever beam, 21-first through hole, 22-clamping plate, 3-connecting steel beam, 31-second through hole, 4-positioning connection assembly, 41-steel beam connecting plate, 42-positioning hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", "fourth", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] This embodiment proposes a connection structure of a steel structure maintenance layer, such as Figure 1 As shown, it includes a platform steel column 1, a cantilever beam 2, a connecting steel beam 3 and a positioning connection component 4. One end of the cantilever beam 2 is fixedly installed on the side of the platform steel column 1, and the other end of the cantilever beam 2 is abutted against the connecting steel beam 3 and fixedly connected to the connecting steel beam 3 through the positioning connection component 4, so that the connecting steel beam 3 and the platform steel column 1 are fixedly connected through the cooperation of the positioning connection component 4 and the cantilever beam 2. Among them, by pre-welding the cantilever beam 2 to the platform steel column 1, it is beneficial to reduce the residual stress between the cantilever beam 2 and the platform steel column 1, while avoiding the most unfavorable stress area, and can also reduce the amount of welding during the on-site lifting construction process, thereby improving the construction efficiency. In addition, the positioning connection component 4 is used to provide positioning for the docking and installation of the connecting steel beam 3, which further improves the construction efficiency.

[0022] In this embodiment, the cantilever beam 2 is provided with at least one Figure 1 As shown, there are four cantilever beams 2 , which are welded and fixed to the surface of the platform steel sling 1 in a circular array along the axis of the platform steel sling 1 .

[0023] In this embodiment, if Figure 2 As shown, the platform steel sling 1 is a hollow cylinder, and a transverse partition 11 is arranged inside the platform steel sling 1 to improve the strength and rigidity of the platform steel sling 1 and to increase the service life.

[0024] In this embodiment, if Figure 3As shown, the positioning connection component 4 includes a steel beam connecting plate 41, on which a plurality of positioning holes 42 are opened, and the cantilever beam 2 is provided with a first through hole 21 adapted to the positioning hole 42 at one end close to the connecting steel beam 3, and is bolted to the steel beam connecting plate 41 through the positioning hole 42 and the first through hole 21; the connecting steel beam 3 is provided with a second through hole 31 adapted to the positioning hole 42 at one end close to the cantilever beam 2, and is bolted to the second through hole 31 through the positioning hole 42, that is, through the preset positioning holes and the connecting holes (the first through hole 21 and the second through hole 31), the construction efficiency can be effectively improved compared with the current welding operation for fixing.

[0025] In this embodiment, steel beam connecting plates 41 are symmetrically provided on both sides of the cantilever beam 2 , so that the steel beam connecting plates 41 can provide fixation and support on both sides of the cantilever beam 2 .

[0026] In this embodiment, if Figure 4 As shown, the top and bottom of the connection between the cantilever beam 2 and the connecting steel beam 3 are symmetrically welded with clamping plates 22. During the installation process, the connecting steel beam 3 is first clamped between the clamping plates 22 to achieve limited fixation with the cantilever beam 2.

[0027] Working principle: The cantilever beam 2 can be pre-welded to the platform steel suspension column 1 in the factory, thus avoiding high-altitude welding operations on site, and also helping to reduce residual stress. At the same time, it avoids the most unfavorable stress area and facilitates on-site lifting. Subsequently, after the platform steel suspension column 1 is lifted on site, the connecting steel beam 3 is lifted so that the connecting steel beam 3 and the cantilever beam 2 are abutted through the clamping plate 22, and then the cantilever beam 2 and the connecting steel beam 3 are installed and fixed by bolt connection through the positioning effect of the steel beam connecting plate 41, thereby realizing the installation and fixation of the connecting steel beam 3, which facilitates lifting and improves construction efficiency.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A connection structure for a steel structure maintenance layer, characterized in that: The invention comprises a platform steel suspension column (1), a cantilever beam (2), a connecting steel beam (3) and a positioning connection assembly (4); one end of the cantilever beam (2) is fixedly installed on the side of the platform steel suspension column (1), and the other end of the cantilever beam (2) is abutted against the connecting steel beam (3) and fixedly connected to the connecting steel beam (3) through the positioning connection assembly (4); the top and bottom of the connection between the cantilever beam (2) and the connecting steel beam (3) are symmetrically welded with a clamping plate (22).

2. The connection structure of the steel structure maintenance layer according to claim 1 is characterized in that: At least one cantilever beam (2) is provided, and the cantilever beam (2) is welded and fixed to the surface of the platform steel sling (1) in a circular array along the axis of the platform steel sling (1).

3. The connection structure of the steel structure maintenance layer according to claim 1 is characterized in that: The platform steel suspension column (1) is in the shape of a hollow cylinder, and a transverse partition plate (11) is arranged inside the platform steel suspension column (1).

4. The connection structure of the steel structure maintenance layer according to claim 1 is characterized in that: The positioning connection assembly (4) comprises a steel beam connection plate (41), on which a plurality of positioning holes (42) are provided; one end of the cantilever beam (2) close to the connecting steel beam (3) is provided with a first through hole (21) adapted to the positioning hole (42), and is bolted to the steel beam connection plate (41) via the positioning hole (42) and the first through hole (21); and one end of the connecting steel beam (3) close to the cantilever beam (2) is provided with a second through hole (31) adapted to the positioning hole (42), and is bolted to the second through hole (31) via the positioning hole (42).

5. The connection structure of the steel structure maintenance layer according to claim 4 is characterized in that: Steel beam connecting plates (41) are symmetrically provided on both sides of the cantilever beam (2).

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