Repairable and easy-to-replace fabricated steel structure beam-column joint capable of realizing self-resetting

Abstract

The invention provides a repairable and easy-to-replace fabricated steel structure beam-column joint capable of realizing self-resetting. The repairable and easy-to-replace fabricated steel structure beam-column joint comprises a rectangular tubular column, concrete, a supporting plate assembly, an I-shaped beam and an inverted U-shaped cover plate; the supporting plate assembly comprises a horizontal supporting plate and vertical side plates located on the two sides of the horizontal supporting plate; the end part of a lower wing plate of the I-shaped beam is placed on the horizontal supporting plate, the inverted U-shaped cover plate is buckled on the outer sides of the two vertical side plates and the end part of the upper wing plate of the I-shaped beam; a plurality of shape memory alloy vertical ribs are connected between the end part of the lower wing plate and the end part of an upper wing plate of the I-shaped beam, two ends of each shape memory alloy vertical rib are connected with the closed end of the inverted U-shaped cover plate and the horizontal supporting plate through bolt structures; and a plurality of vertical bolt long holes are formed in the vertical side plates and / or the side plates of the inverted-U-shaped cover plates, and the vertical side plates and the side plates of the inverted-U-shaped cover plates are connected through high-strength bolts arranged in the vertical bolt long holes in a penetrating mode.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a repairable, easily replaceable and self-resetting assembled beam-column node of a steel structure. Background technique [0002] At present, the country is vigorously promoting assembly construction technology. Compared with reinforced concrete structures, steel structures are favored for their advantages of light weight, high strength, good toughness, excellent seismic performance, and high degree of assembly. Beam-column joints play an important role in prefabricated steel structures. The characteristics of joints directly affect the safety and reliability of the structure, and their seismic performance determines the extensiveness of their practical applications. [0003] In traditional steel structure buildings, beams and columns are usually connected by welding. Due to factors such as the environment and construction level, it is difficult to control the q...

AI Technical Summary

Problems solved by technology

[0003] In traditional steel structure buildings, beams and columns are usually connected by welding. Due to factors such as the environment and construction level, it is difficult to control the quality of welds stably. Under the action of earthquakes, welds are prone to damage or destruction. Joint assembly The level of urbanization is low, and it is difficult to repair after the earthquake

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