H-shaped steel beam and square tubular column fabricated joint and construction method

Abstract

The invention discloses an H-shaped steel beam and square pipe column assembly type node which comprises a square pipe column, four H-shaped steel beams and a connecting piece, the connecting piece comprises a steel rectangular frame, an L-shaped plate and an L-shaped block, the two ends of the L-shaped block are provided with lug plates connected into a whole, the node end faces of the H-shaped steel beams are welded with end plates, and the four H-shaped steel beams are arranged on the four side faces of the square pipe column respectively. The steel rectangular frames are welded to the outer side wall of the square pipe column, the two steel rectangular frames are arranged on the upper side and the lower side of the H-shaped steel beam correspondingly, L-shaped grooves connected with the steel rectangular frames in a clamped mode are formed in the inner side walls of the L-shaped blocks, two lug plates at the same ends of the two L-shaped blocks are connected through first high-strength bolts, and the surfaces of upper flange plates and lower flange plates of the H-shaped steel beam are tightly attached to the L-shaped blocks on the upper side and the lower side. The L-shaped plates are connected with the side faces of the L-shaped blocks and flange plates of the H-shaped steel beams through second high-strength bolts correspondingly. The invention further discloses a construction method of the fabricated joint. The connecting structure is reasonable in structural stress, stable in connection, high in horizontal wind resistance and resistance, good in stress performance, easy to assemble and convenient to install.

Description

technical field [0001] The invention relates to the technical field of steel structure construction, in particular to an assembled node of an H-shaped steel beam and a square pipe column and a construction method. Background technique [0002] The prefabricated steel structure has become a hot spot in the development of the construction industry due to its advantages of light weight, high strength, good seismic performance, fast construction, short cycle, reusable use, and less pollution, especially the modular characteristics, which are more in line with my country's industrialization Development requirements, with good application prospects and market potential. [0003] Square steel pipe is the main vertical force member often used in steel structures, and "H" shaped steel is also the most commonly used transverse force member. The connection between the two is a common structure. Most of them are welded structures, which are inconvenient for on-site construction, and som...

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Problems solved by technology

[0003] Square steel pipe is the main vertical force member often used in steel structures, and "H" shaped steel is also the most commonly used transverse force member. The connection between the two is a common structure. Most of them are welded structures, which are inconvenient for on-site construction, and some of them are connected by assembled bolts, such as the Y-shaped double-eared square pipe column and H-shaped steel beam-column joints, connectors and construction methods disclosed in Patent No. CN201710250156.9 , the assembly structure has zero welding on site and is convenient for construction. However, the structure of the connectors in this structure is complex, which is not convenient for production, and it is set separately from the Y-shaped connectors welded by the square pipe column. Multiple points need to be welded and it is difficult to ensure four Y-shaped joints. Type connectors are welded on the same horizontal plane, which may easily lead to uneven stress on the H-shaped steel, and the second connector is welded to the end of the H-shaped steel beam. In the actual structure, the horizontal wind resistance of the H-shaped steel beam is weak

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