Assembly type friction type energy dissipation connection beam column joint

Abstract

The invention discloses an assembly type friction type energy dissipation connection beam column joint based on a sliding mechanism. A sliding energy dissipation plate is provided with a long circular groove-shaped bolt hole, the sliding phenomenon does not exist in the normal use stage, normal force transmission between spliced beam sections is guaranteed, and loads on beams are transmitted to a joint core area and a frame column; along with the increase of the load, the sliding energy consumption plate starts to slide, a web steel hinge rotates, friction energy consumption is generated, and the bearing capacity of a connecting joint is kept unchanged; the load is continuously increased, bolts are in extrusion contact with the bolt hole walls of connecting plates, the high-strength bolts are converted from a friction type to a pressure-bearing type, the joint bearing capacity is increased, and the connecting plates are subjected to extrusion deformation; and the load is continuously increased, and the sliding energy consumption plate is locally bent or yielded under tension. The energy dissipation capacity and the deformation capacity of the connecting joint are improved based on the sliding mechanism, damage is concentrated on a friction energy dissipation damper, plastic damage of the beams, the columns and the joint can be protected, prefabrication assembly and post-earthquake detachability can be achieved through bolt connection, and good engineering practicability is achieved.

Description

technical field [0001] The invention belongs to the technical field of anti-seismic technology of building structures in civil engineering, and relates to a prefabricated assembled steel structure system, in particular to an assembled friction type energy-dissipating connection beam-column node based on a sliding mechanism. Background technique [0002] As a green building structure with a full life cycle significance, the fabricated steel structure not only has good ductility and seismic performance, but also can realize modular, standardized, industrialized and informationized production. In recent years, with the continuous improvement of prefabricated key technologies and the quality of prefabricated construction projects, the prefabricated construction concept has gradually penetrated into all aspects of the construction industry and has been widely promoted and applied. [0003] Existing earthquake disaster investigations have shown that the collapse of prefabricated...

AI Technical Summary

Problems solved by technology

[0004] The traditional prefabricated frame structure uses the plastic deformation of each component to dissipate energy, resulting in serious plastic damage to the structure, and it is difficult to repair after the earthquake

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