Easily repaired steel-structure beam-column node

Abstract

The invention relates to an easily repaired steel-structure beam-column node, in particular to an easily repaired steel-structure beam-column node which is applied in the field of structural engineering and particularly used in high-intensity earthquake-proof areas. The node comprises an upright H-shaped steel column and an H-shaped steel beam of which the end part is vertically connected on a side wing plate of the H-shaped steel column, and is characterized in that: connecting ends of a belly plate of the H-shaped steel beam and the side wing plate of the H-shaped steel column are connected by a reinforced connecting plate closely contacted with the belly plate of the H-shaped steel beam and high-strength bolts penetrating the reinforced connecting plate, the reinforced connecting plate is in welding connection with the side wing plate of the H-shaped steel column, and both sides of the connecting end of a bottom side wing plate of the H-shaped steel beam are in locked connection with the H-shaped steel column by a T-shaped connecting plate and penetrating high-strength bolts respectively; and the T-shaped connecting plate is transversely arranged, upper and lower ends of the T-shaped connecting plate in the vertical direction are in locked connection with the side wing plate of the H-shaped steel column by a washer and the penetrating high-strength bolts respectively, a transverse plate of the T-shaped connecting plate is supported on the lower part of the bottom side wing plate of the H-shaped steel beam and locked by the penetrating high-strength bolts. The structure can effectively avoid brittle failure, has good ductile fracture characteristic, and can be widely applied to structures of earthquake areas, particularly the high-intensity earthquake-proof areas; and the easily repaired steel-structure beam-column node of the invention also has the advantages of convenient construction and convenient after-earthquake repairing.

Description

technical field [0001] The invention relates to a beam-column joint of an easily repairable steel structure, in particular to an easily repairable beam-column joint of a steel structure applied in the technical field of structural engineering and especially suitable for high-intensity fortification earthquake areas. Background technique [0002] Steel structure has a series of advantages such as high strength, light weight, good seismic performance, fast construction speed, low foundation cost, small occupied area, high degree of industrialization, beautiful appearance, etc. Compared with concrete structure, it is environmentally friendly and can be reused It is also a structure that is easy to industrialize. The connection node between the beam and the column is a key component to ensure that the beam and the column work together to form a structural whole. In the multi-story steel structure frame, the typical beam-column connection is butt welding between the beam flange ...

AI Technical Summary

Problems solved by technology

The repair of bolted joints with full strength connections after damage is similar to that of welded joints, which is relatively difficult

The repair workload of partial-strength bolted connections differs depending on the connection used: due to the welding of the end plate and the beam end, it is difficult to repair the joints using the end plate connection; Bolted connection, connection replacement is relatively easy after node failure

However, since the connectors on the upper flange of the beam are buried in concrete, it is still necessary to remove the reinforced concrete near the connectors when replacing them.

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