Butt joint of section of steel structure shaped like Chinese character'ri '

Abstract

The invention relates to a butt joint node of a section of a steel structure shaped like a Chinese character'ri ', which belongs to the technical field of steel structure connection and comprises two pieces of square steel and a connecting piece arranged between the two pieces of square steel. According to the butt joint node for the section of the steel structure shaped like the Chinese character'ri ', by arranging the connecting pieces, the adjacent square steel is preliminarily connected and positioned, the reinforcing transverse plates are inserted into the clamping grooves, the square steel on the two sides can be preliminarily positioned, and a gap existing between the square steel which is in butt joint is embedded, butt-jointed and fixed through the two limiting pieces; the square steel can be limited to play a role in mutual restriction by the aid of the limiting blocks, the number of bolts can be reduced, the mounting efficiency is improved, the transverse supporting plates and the vertical supporting plates inserted into the square steel form an I-shaped structure, the inner wall of the square steel is supported, the structural strength of the square steel is enhanced, and the service life of the square steel is prolonged. And then the limiting plates penetrate through the limiting insertion openings to be connected with the reinforcing transverse plates in a clamped mode, and the connection firmness is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure connection, and specifically to a butt joint node for a Japanese-character-shaped steel structure cross-section. Background Art

[0002] The Japanese-character-shaped steel structure is a steel member with a complex cross-sectional shape, usually used in large and extra-large complex steel structure projects. This structure is named because its shape is similar to the Chinese character 'Ri' and is widely used in fields such as architecture and bridges. In bridge construction, the Japanese-character-shaped steel structure can be used in key parts such as bridge decks and main girders to provide good structural stability and durability.

[0003] Currently, the common steel structure connection methods are welding, bolt connection, or riveting, etc. Although the welding method has a firm connection, the operation and construction difficulty of welding are large, increasing the difficulty of steel structure installation. The high-strength bolt connection method has good plasticity and toughness and reliable force transmission, but bolt connection requires multiple holes to be drilled on the plate members, with a large amount of bolts used, increasing the manufacturing workload and precision requirements. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides a butt joint node for a Japanese-character-shaped steel structure cross-section, which has the advantages of convenient installation, reduced bolt usage, and firmness guarantee.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the present invention provides the following technical solution: A butt joint node for a Japanese-character-shaped steel structure cross-section includes two square steels and a connecting member. The connecting member is arranged between the two square steels. There is a gap between the two square steels, and a limiting member is arranged outside the connecting member at the gap.

[0008] The connecting member includes a support vertical plate, and support horizontal plates are fixedly connected to both the top and bottom of the support vertical plate. A limiting chute is opened on the side of the support horizontal plate away from the support vertical plate.

[0009] The limiting member includes a U-shaped plate. Limiting slide bars are fixedly connected to the upper and lower inner side walls of the U-shaped plate. The limiting slide bars are adapted to the limiting chutes. Side baffles are arranged on the side walls of the U-shaped plate, and two limiting plates are arranged on the side of the side baffle close to the U-shaped plate.

[0010] Preferably, a reinforcing horizontal plate is integrally fixed inside the square steel, and the square steel and the reinforcing horizontal plate form a Japanese-character-shaped structure.

[0011] Preferably, clamping grooves are opened on both sides of the support vertical plate, and the clamping grooves are adapted to the reinforcing horizontal plates.

[0012] Preferably, a U-shaped groove is formed on one side of the limiting plate away from the side baffle, and the U-shaped groove is matched with the thickness of the reinforcing cross plate.

[0013] Preferably, the supporting vertical plates and the supporting cross plates on the upper and lower sides form an "I"-shaped structure, and the supporting cross plates are attached to the inner wall of the square steel.

[0014] Preferably, limiting sockets are formed on the front and rear side walls, and one end of the limiting plate penetrates through the limiting socket and extends into the square steel.

[0015] Preferably, the upper and lower sides of the limiting plate are abutted between the two supporting cross plates, and the side baffle is attached to the side wall of the square steel.

[0016] Preferably, connecting convex plates are integrally fixed on the upper and lower side walls of the U-shaped plate, and mounting holes are formed inside the connecting convex plates.

[0017] Advantageous Effects

[0018] Compared with the prior art, the present invention provides a butt joint node for a Japanese character-shaped steel structure section, which has the following

[0019] advantageous effects:

[0020] 1. For the butt joint node of the Japanese character-shaped steel structure section, by arranging the connecting piece to initially connect and position adjacent square steels, and inserting the reinforcing cross plate into the clamping groove, the square steels on both sides can be initially positioned. Then, the gaps between the butted square steels are embedded and fixed by two limiting pieces, so as to limit the square steels and achieve the effect of mutual restraint. This not only reduces the usage amount of bolts, but also improves the installation efficiency.

[0021] 2. For the butt joint node of the Japanese character-shaped steel structure section, the "I"-shaped structure formed by the supporting cross plates and the supporting vertical plates inserted into the square steel plays a role in supporting the inner wall of the square steel, strengthening the structural strength of the square steel. Then, the limiting plate passes through the limiting socket and is mutually clamped with the reinforcing cross plate, improving the connection firmness. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of a butt joint node for a Japanese character-shaped steel structure section proposed by the present invention;

[0023] Figure 2 is proposed by the present invention Figure 1 top view;

[0024] Figure 3 is a three-dimensional view of the square steel proposed by the present invention;

[0025] Figure 4Isometric view of the connector proposed by the present invention;

[0026] Figure 5 Isometric view of the limiting member proposed by the present invention.

[0027] In the figure: 1, square steel; 101, limiting socket; 2, reinforcing cross plate; 3, limiting member; 301, U-shaped plate; 302, side baffle; 303, limiting plate; 304, U-shaped groove; 305, limiting slide bar; 306, connecting convex plate; 307, mounting hole; 4, connector; 401, supporting vertical plate; 402, supporting cross plate; 403, clamping groove; 404, limiting slide groove; 5, high-strength bolt. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figure 1-5 , the "day"-shaped steel structure butt joint node in this embodiment includes two square steels 1 and a connector 4. The connector 4 is arranged between the two square steels 1. A reinforcing cross plate 2 is integrally fixed inside the square steel 1. The square steel 1 and the reinforcing cross plate 2 form a "day"-shaped structure. There is a gap between the two square steels 1. A limiting member 3 is arranged outside the connector 4 at the gap. The connector 4 includes a supporting vertical plate 401. Supporting cross plates 402 are fixedly connected to both the top and bottom of the supporting vertical plate 401. A limiting slide groove 404 is opened on the side of the supporting cross plate 402 away from the supporting vertical plate 401.

[0030] Please refer to Figure 1 , Figure 4 , clamping grooves 403 are opened on both sides of the supporting vertical plate 401. The clamping grooves 403 are adapted to the reinforcing cross plate 2. The supporting vertical plate 401 and the upper and lower supporting cross plates 402 form an "I"-shaped structure. The supporting cross plate 402 is attached to the inner wall of the square steel 1.

[0031] Through the "I"-shaped structure formed by the supporting cross plate 402 and the supporting vertical plate 401 inserted into the square steel 1, the inner wall of the square steel 1 is supported, the structural strength of the square steel 1 is enhanced, and then the limiting plate 303 passes through the limiting socket 101 and is mutually clamped with the reinforcing cross plate 2, improving the firmness of the connection.

[0032] At the same time, the supporting vertical plate 401 and the reinforcing cross plate 2 are mutually clamped, which plays a role in initially positioning and connecting the two side square steels 1, facilitating subsequent further reinforcement operations.

[0033] See also Figure 5 The limiting member 3 includes a U-shaped plate 301, and a limiting slide bar 305 is fixedly connected to the upper and lower inner side walls of the U-shaped plate 301. The limiting slide bar 305 is adapted to the limiting slide groove 404. The side wall of the U-shaped plate 301 is provided with a side baffle plate 302, and two limiting plates 303 are provided on the side of the side baffle plate 302 close to the U-shaped plate 301.

[0034] Preferably, a U-shaped groove 304 is formed on a side of the limiting plate 303 away from the side baffle 302 , and the U-shaped groove 304 matches the thickness of the reinforcing transverse plate 2 .

[0035] See also Figure 1 , Figure 2 , Figure 3 In this embodiment, the front and rear side walls of 1 are both provided with limit sockets 101, one end of the limit plate 303 passes through the limit socket 101 and extends to the inside of the square steel 1, the upper and lower sides of the limit plate 303 abut between the two supporting horizontal plates 402, and the side baffle plate 302 is attached to the side wall of the square steel 1.

[0036] The upper and lower side walls of the U-shaped plate 301 are integrally fixed with connecting protruding plates 306 , the interior of the connecting protruding plates 306 is provided with mounting holes 307 , and the interior of the mounting holes 307 is inserted with high-strength bolts 5 .

[0037] It can be understood that by providing the connecting piece 4 to preliminarily connect and position the adjacent square steels 1, the reinforcing cross plate 2 is inserted into the inside of the clamping groove 403, and the square steels 1 on both sides can be preliminarily positioned, so that the gap between the square steels 1 butted together is inserted and fixed by two limiting pieces 3, so that the square steels 1 can be limited to play a mutual restraining effect, which can not only reduce the amount of bolts, but also improve the efficiency of installation.

[0038] It should be noted that there are two groups of limit members 3. By inserting two front-to-back symmetrical limit members 3 into the gap between the square steels 1, the integrity of the connection can be ensured. At the same time, the butt-jointed 306 are connected and fixed by high-strength bolts 5 in combination with nuts. The two groups of limit members 3 are connected and fixed, and the limit plates 303 inserted into the interior of the square steels 1 have a limiting effect on the direction of the steels 1 on both sides. At the same time, the limit plates 303 can also support the two ends of the supporting cross plate 402, thereby further improving the stability.

[0039] In summary, when installing the Japanese-shaped steel structure cross-section docking node, first insert the two ends of the connecting piece 4 into the inner part from the ports of the adjacent square steels 1, so that the supporting cross plate 402 can be fitted on the inner wall of the square steel 1, and the reinforcing cross plate 2 will be inserted into the inside of the clamping groove 403, which plays a role in preliminary positioning and connecting the square steels 1 on both sides. After that, the two U-shaped plates 301 are respectively inserted into the gap between the two square steels 1 and docked together, so that the limit slide 305 can slide into the limit slide groove 4. 04, the U-shaped plate 301 can be used to seal the gap at the connection of the square steel 1. At the same time, the limiting plate 303 will be inserted into the interior of the square steel 1 from the limiting socket 101, and the reinforcing cross plate 2 will be inserted into the interior of the U-shaped groove 304, which can limit the square steels 1 on both sides. After that, the high-strength bolts 5 are passed through the connecting convex plate 306 after docking, and the nuts are screwed on to fix it. This installation method is not only easy to operate, but also reduces the amount of bolts used, thereby improving the efficiency of installation.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The H-shaped steel structure butt joint node includes two square steels (1) and a connecting piece (4). It is characterized in that: The connecting piece (4) is arranged between the two square steels (1), there is a gap between the two square steels (1), and a limiting piece (3) located at the gap is arranged outside the connecting piece (4); The connecting piece (4) includes a supporting vertical plate (401), and supporting horizontal plates (402) are fixedly connected to both the top and the bottom of the supporting vertical plate (401), and a limiting sliding groove (404) is opened on one side of the supporting horizontal plate (402) away from the supporting vertical plate (401); The limiting piece (3) includes a U-shaped plate (301), limiting sliding strips (305) are fixedly connected to the upper and lower inner side walls of the U-shaped plate (301), the limiting sliding strips (305) are adapted to the limiting sliding grooves (404), side baffles (302) are arranged on the side walls of the U-shaped plate (301), and two limiting plates (303) are arranged on one side of the side baffle (302) close to the U-shaped plate (301).

2. The H-shaped steel structure butt joint node according to claim 1, It is characterized in that: A reinforcing horizontal plate (2) is integrally fixed inside the square steel (1), and the square steel (1) and the reinforcing horizontal plate (2) form an "H" - shaped structure.

3. The H-shaped steel structure butt joint node according to claim 2, It is characterized in that: Clamping grooves (403) are opened on both sides of the supporting vertical plate (401), and the clamping grooves (403) are adapted to the reinforcing horizontal plate (2).

4. The H-shaped steel structure butt joint node according to claim 2, It is characterized in that: A U-shaped groove (304) is opened on one side of the limiting plate (303) away from the side baffle (302), and the U-shaped groove (304) matches the thickness of the reinforcing horizontal plate (2).

5. The H-shaped steel structure butt joint node according to claim 1, It is characterized in that: The supporting vertical plate (401) and the upper and lower supporting horizontal plates (402) form an "I" - shaped structure, and the supporting horizontal plates (402) are attached to the inner walls of the square steels (1).

6. The H-shaped steel structure butt joint node according to claim 1, It is characterized in that: Limiting sockets (101) are opened on the front and rear side walls of the (1), and one end of the limiting plate (303) penetrates through the limiting socket (101) and extends into the square steel (1).

7. The H-shaped steel structure butt joint node according to claim 1, It is characterized in that: The upper and lower sides of the limiting plate (303) are abutted between the two supporting horizontal plates (402), and the side baffle (302) is attached to the side wall of the square steel (1).

8. The H-shaped steel structure butt joint node according to claim 1, It is characterized in that: Connecting convex plates (306) are integrally fixed on both the upper and lower side walls of the U-shaped plate (301), and mounting holes (307) are opened inside the connecting convex plates (306).

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