Corrosion-resistant building steel structure

Abstract

The utility model discloses a corrosion-resistant building steel structure, and belongs to the technical field of building steel structures. Comprising a plurality of groups of bolt assemblies and nut assemblies which are used for fixing two steel columns, each bolt assembly comprises a bolt and an outer sleeve, each bolt comprises a head, each nut assembly comprises a nut and an outer sleeve part, the outer sleeves are fixed to the heads, gaps are reserved between the outer sleeves and the heads, and gaps are reserved between the nuts and the outer sleeve parts; the bolt penetrates through the two steel columns, then the nut is connected to the bolt in a threaded mode, at the moment, the outer sleeve abuts against the outer surface of one steel column, the outer sleeve piece abuts against the outer surface of the other steel column, at the moment, the bolt and the nut are covered with the outer sleeve and the outer sleeve piece, and then corrosion of the bolt and the nut can be relieved; and external moisture can be greatly reduced from entering the open hole of the steel column through a connection gap between the bolt and the nut, and corrosion of the inner wall of the open hole of the steel column is relieved.

Description

Technical Field

[0001] The present application relates to the technical field of building steel structures, and more specifically, to a corrosion-resistant building steel structure. Background Art

[0002] Steel structure building is a new type of building system. Compared with traditional concrete buildings, steel structure buildings use steel plates or steel sections instead of reinforced concrete, which has higher strength and better earthquake resistance. And because the components can be factory-made and installed on-site, the construction period is greatly reduced. Since steel can be reused, it can greatly reduce construction waste and is more environmentally friendly. Therefore, it is widely adopted by countries around the world and used in industrial and civil buildings. Most of the existing building steel structures are welded from pure steel, which is easily corroded in the long-term wind and sun, affecting the service life of steel structure buildings. Therefore, the building steel structure needs to strengthen anti-corrosion to solve this problem. There are many journals and documents on the research of steel structure buildings in the prior art. Among them, there is a patent application with patent number CN201520095942.2, which provides an anti-corrosion steel structure column. The gaps of the aluminum-magnesium alloy metal coating are sealed by providing a closed primer layer. The aluminum-magnesium alloy metal coating in the anti-corrosion coating can achieve the effect of anti-corrosion protection for the steel structure. However, this type of steel structure anti-corrosion layer is prone to cracking after a long period of wind and sun exposure. The poor anti-corrosion effect affects the utilization rate of steel structure buildings. In particular, the connection between the components of the steel structure is generally carried out by welding or bolting. When the length of the component is not enough or it needs to be changed, it is necessary to reconnect a section for welding and lengthening or re-welding, which not only increases the construction difficulty and labor time, but also affects the aesthetics.

[0003] The document with the prior art publication number CN 208803563 U provides a corrosion-resistant building steel structure. The device can be made into stainless steel by plating a certain amount of alloy elements such as chromium, nickel, titanium, etc. into the steel structure, so that it can improve the rust resistance of the steel. The purpose of increasing the corrosion resistance of the steel structure is achieved by rubbing a plastic coating of uniform thickness. The isolation coating has an efficient isolation function, so that it can block the direct contact between the outside and the metal substrate, thereby eliminating the source of corrosion. Spraying a certain amount of isolation coating on the building steel structure can seal the anti-corrosion coating, so that it can greatly extend the service life of the coating, thereby solving the problem that the anti-corrosion layer of the steel structure is easy to crack after a long period of wind and sun, and the poor anti-corrosion effect affects the utilization rate of the steel structure building. The position of the connecting part and the main body of the building steel structure can be adjusted by the fastening plate, and the fastening plate is limited by the limit column, so that the steels at different positions and heights that need to be connected are connected, which reduces the difficulty of construction, thereby solving the problem that when the length of the component is not enough or the position needs to be changed, it is necessary to reconnect a section for welding extension or re-welding.

[0004] Although the above-mentioned prior art solution can achieve the relevant beneficial effects through the structure of the prior art, it still has the following defects: when the connecting parts in the device are connected through the bolt and nut group, it is necessary to open a hole in the steel structure. After the bolt and nut group is installed, the bolt and nut group is exposed to the outside world for a long time. The combined action of moisture and oxygen in the air will cause oxidation corrosion of the bolt and nut group, reducing the service life of the bolt and nut group. At the same time, when the corrosion is severe, the fixing reliability is also reduced. After the anti-corrosion layer on the inner wall of the hole of the steel structure after the hole is opened is damaged, it is also very easy to corrode.

[0005] With respect to the above-mentioned related technologies, the inventors believe that when the connecting parts in the device are connected by bolt and nut groups, it is necessary to drill holes in the steel structure. After the bolt and nut groups are installed, the bolt and nut groups are exposed to the outside world for a long time. The combined action of moisture and oxygen in the air will cause oxidation corrosion of the bolt and nut groups, thereby reducing the service life of the bolt and nut groups. At the same time, when the corrosion is severe, the fixing reliability is also reduced. Moreover, after the anti-corrosion layer on the inner wall of the hole of the steel structure after the hole is drilled is damaged, it is also very easy to corrode.

[0006] In view of this, we propose a corrosion-resistant building steel structure. Utility Model Content

[0007] 1. Technical problems to be solved

[0008] The purpose of this application is to provide a corrosion-resistant building steel structure, which solves the technical problems in the above-mentioned background technology and achieves the technical effects of slowing down the corrosion of the steel structure joints, increasing the service life, and ensuring the connection strength.

[0009] 2. Technical solution

[0010] The technical solution of the present application provides a corrosion-resistant building steel structure, including: multiple groups of bolt assemblies and nut assemblies for fixing two steel columns, the bolt assembly includes a bolt and an outer sleeve, the bolt includes a head, the nut assembly includes a nut and an outer sleeve, the outer sleeve is fixed to the head, and gaps are reserved between the outer sleeve and the head, and between the nut and the outer sleeve.

[0011] By adopting the above technical solution, the bolts are passed through the two steel columns, and then the nuts are threadedly connected to the bolts. At this time, the outer sleeve is against the outer surface of one steel column, and the outer sleeve is against the outer surface of the other steel column. At this time, the bolts and nuts are covered by the outer sleeve and the outer sleeve, thereby slowing down the corrosion of the bolts and nuts, and greatly reducing the external moisture that enters the opening of the steel column through the connection gap between the bolts and the nuts, thereby slowing down the corrosion of the inner wall of the steel column opening.

[0012] As an optional solution of the technical solution of the present application document, the outer sleeve is connected through a telescopic cylinder made of rubber material.

[0013] By adopting the above technical solution, the telescopic tube is coaxially fixed with the outer sleeve, and the telescopic tube can be telescopically adjusted. When the nut is threadedly connected with the bolt, the protruding length of the nut after being screwed into the bolt can be adapted through the extension adjustment of the telescopic tube, thereby ensuring that the outer sleeve can adapt to bolts with different protruding lengths under the action of the telescopic tube.

[0014] As an optional solution of the technical solution of the present application document, a desiccant storage box with adsorption holes is fixedly installed inside the telescopic cylinder and the outer sleeve.

[0015] By adopting the above technical solution, by filling the desiccant storage box with desiccant, moisture in the telescopic cylinder and the outer sleeve can be adsorbed in a closed state, thereby ensuring the dryness of the space inside the bolt and the nut.

[0016] As an optional solution of the technical solution of this application document, rubber rings are arranged between the head and the steel column, between the nut and the steel column, and rubber pads are arranged between the steel columns.

[0017] By adopting the above technical solution, the sealing between the bolt and the steel column, between the head and the steel column can be improved by the rubber ring, and the sealing between the two steel columns can be improved by the rubber pad.

[0018] As an optional solution of the technical solution of the present application document, the outer sleeve is fixedly connected to the nut, and the outer sleeve is a hexagonal column structure.

[0019] By adopting the above technical solution, the outer sleeve and the nut are integrally formed, and the hexagonal prism structure of the outer sleeve can drive the rotation of the nut through the outer sleeve.

[0020] 3. Beneficial effects

[0021] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0022] 1. The present application passes a bolt through two steel columns, and then threads a nut on the bolt. At this time, the outer sleeve abuts against the outer surface of one steel column, and the outer sleeve abuts against the outer surface of another steel column. At this time, the bolt and nut are covered by the outer sleeve and the outer sleeve, thereby slowing down the corrosion of the bolt and nut, and greatly reducing the external moisture from entering the opening of the steel column through the connection gap between the bolt and the nut, thereby slowing down the corrosion of the inner wall of the opening of the steel column;

[0023] 2. The present application is coaxially fixed with the outer sleeve by a telescopic tube, and the telescopic tube is telescopically adjustable, so that when the nut is threadedly connected with the bolt, the protruding length of the nut after being screwed into the bolt can be adapted by the extension adjustment of the telescopic tube, so as to ensure that the outer sleeve can adapt to bolts of different protruding lengths under the action of the telescopic tube;

[0024] 3. The present application fills the desiccant storage box with desiccant to absorb moisture in the telescopic cylinder and the outer sleeve when in a closed state, thereby ensuring the dryness of the space inside the bolt and the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall fixed state structure of a corrosion-resistant building steel structure disclosed in a preferred embodiment of the present application;

[0026] Figure 2 A schematic diagram of the bolt assembly and nut assembly structure of a corrosion-resistant building steel structure disclosed in a preferred embodiment of the present application;

[0027] Figure 3 This is a schematic cross-sectional structure diagram of a bolt assembly of a corrosion-resistant building steel structure disclosed in a preferred embodiment of the present application;

[0028] Figure 4 A schematic diagram of a nut assembly structure of a corrosion-resistant building steel structure disclosed in a preferred embodiment of the present application;

[0029] Figure 5 A schematic diagram of the internal structure of a telescopic cylinder of a corrosion-resistant building steel structure disclosed in a preferred embodiment of the present application;

[0030] Explanation of the numbers in the figure: 1. Steel column; 2. Bolt assembly; 201. Bolt; 202. Head; 203. Outer sleeve; 3. Nut assembly; 301. Nut; 302. Outer sleeve; 303. Telescopic cylinder; 4. Desiccant storage box; 5. Rubber pad; 6. Rubber ring. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with the accompanying drawings.

[0032] A corrosion-resistant building steel structure comprises: a plurality of bolt assemblies 2 and nut assemblies 3 for fixing two steel columns 1, wherein the bolt assembly 2 comprises a bolt 201 and an outer sleeve 203, the bolt 201 comprises a head 202, the nut assembly 3 comprises a nut 301 and an outer sleeve 302, the outer sleeve 203 is fixed to the head 202, and gaps are reserved between the outer sleeve 203 and the head 202, and between the nut 301 and the outer sleeve 302.

[0033] Reference Figure 1-Figure 5, pass the bolt 201 through the two steel columns 1, and then thread the nut 301 onto the bolt 201. At this time, the outer sleeve 203 is against the outer surface of one steel column 1, and the outer sleeve 302 is against the outer surface of the other steel column 1. At this time, the bolt 201 and the nut 301 are covered by the outer sleeve 203 and the outer sleeve 302, thereby slowing down the corrosion of the bolt 201 and the nut 301, and greatly reducing the external moisture entering the opening of the steel column 1 through the connection gap between the bolt 201 and the nut 301, thereby slowing down the corrosion of the inner wall of the opening of the steel column 1.

[0034] The outer sleeve 302 is connected through a telescopic tube 303 made of rubber.

[0035] Reference Figure 2 and Figure 4 The telescopic tube 303 is coaxially fixed with the outer set 302, and the telescopic tube 303 can be telescopically adjusted. When the nut 301 is threadedly connected with the bolt 201, the protruding length of the nut 301 after being screwed into the bolt 201 can be adapted through the extension adjustment of the telescopic tube 303, thereby ensuring that the outer set 302 can adapt to bolts 201 with different protruding lengths under the action of the telescopic tube 303.

[0036] A desiccant storage box 4 with adsorption holes is fixedly installed inside the telescopic cylinder 303 and the outer sleeve 203 .

[0037] Reference Figure 3 and Figure 5 By filling the desiccant storage box 4 with desiccant, the moisture in the telescopic cylinder 303 and the outer sleeve 203 is adsorbed in the closed state, thereby ensuring the dryness of the space inside the bolt 201 and the nut 301.

[0038] A rubber ring 6 is provided between the head 202 and the steel column 1 , and between the nut 301 and the steel column 1 , and a rubber pad 5 is provided between the steel columns 1 .

[0039] Reference Figure 1 The rubber ring 6 can improve the sealing between the bolt 201 and the steel column 1, and between the head 202 and the steel column 1, and the rubber pad 5 can improve the sealing between the two steel columns 1.

[0040] The outer sleeve 302 is fixedly connected to the nut 301 , and the outer sleeve 302 is a hexagonal column structure.

[0041] Reference Figure 4 The outer set 302 and the nut 301 are integrally formed, and the outer set 302 has a hexagonal column structure so that the outer set 302 can drive the nut 301 to rotate.

[0042] Working principle: a plurality of corresponding mounting holes are opened on two steel columns 1, and a rubber pad 5 is arranged between the two steel columns 1. The bolt 201 is inserted into the mounting hole and through the rubber pad 5, and then the rubber ring 6 is sleeved on the bolt 201. Subsequently, the outer sleeve 302 is rotated clockwise with a wrench so that the nut 301 is threadedly connected to the bolt 201, and the head 202 and the outer sleeve 302 are respectively against the rubber ring 6. At this time, the bolt 201 and the nut 301 are placed in a relatively sealed space to avoid corrosion caused by contact between the bolt 201 and the nut 301 and the air, and the desiccant stored in the desiccant storage box 4 absorbs moisture to improve the drying effect.

Claims

1. A corrosion-resistant building steel structure, characterized in that: include: A plurality of sets of bolt assemblies (2) and nut assemblies (3) for fixing two steel columns (1), wherein the bolt assembly (2) comprises a bolt (201) and an outer sleeve (203), the bolt (201) comprises a head (202), the nut assembly (3) comprises a nut (301) and an outer sleeve (302), the outer sleeve (203) is fixed to the head (202), and gaps are reserved between the outer sleeve (203) and the head (202), and between the nut (301) and the outer sleeve (302).

2. A corrosion-resistant building steel structure according to claim 1, characterized in that: The outer sleeve (302) is connected through a telescopic cylinder (303) made of rubber.

3. A corrosion-resistant building steel structure according to claim 2, characterized in that: A desiccant storage box (4) with adsorption holes is fixedly installed inside the telescopic cylinder (303) and the outer sleeve (203).

4. The corrosion-resistant building steel structure according to claim 1, characterized in that: A rubber ring (6) is provided between the head (202) and the steel column (1), and between the nut (301) and the steel column (1), and a rubber pad (5) is provided between the steel columns (1).

5. The corrosion-resistant building steel structure according to claim 1, characterized in that: The outer sleeve (302) is fixedly connected to the nut (301), and the outer sleeve (302) is a hexagonal column structure.

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