Reamed steel structure beam-column joint connected via end plate and construction method for same

Abstract

The invention relates to a reamed steel structure beam-column joint connected via an end plate and a construction method for the same. The reamed steel structure beam-column joint connected via an end plate comprises a steel column and an H-section steel beam, which is characterized in that: a steel column flange is connected with the end plate via a friction-type high-strength bolt; the end plate is connected with a steel beam web via a steel beam web connection plate; the end plate is connected with an upper steel beam flange and a lower steel beam flange via a steel beam flange connection plate; the steel beam web connection plate and the steel beam flange connection plate are welded on the end plate via groove full penetration welds; oblong holes are disposed on the steel beam web connection plate and the steel beam flange connection plate; the steel beam web connection plate and the steel beam flange connection plate are connected with the steel beam web and the steel beam flange via friction-type high-strength bolts; and the steel column flange is provided with a shear-resisting support plate on the bottom of the end plate. The reamed steel structure beam-column joint connected via an end plate and the construction method for the same disclosed by the invention can remarkably enhance the ductile deformability and energy dissipation capability of the joint under the function of a rare earthquake, and have the advantages of being convenient in construction, easy to repair after an earthquake etc.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a beam-column node of a reamed steel structure connected by an end plate and a construction method thereof. Background technique [0002] Good ductility is the key factor to ensure that the structure does not collapse under strong earthquakes, and the ductility of joints is a key factor affecting the overall ductility of the structure. Before the Northridge (Northridge) earthquake in the United States in 1994, bolted and welded connections (flange welding, web bolted connections) were commonly used forms of beam-to-column connections in steel frame structures. However, in the Northridge (Northridge) earthquake in the United States in 1994 and the Hanshin earthquake in Japan in 1995, the steel frame that was once considered to have good seismic performance suffered a lot of damage, most of which were caused by beam-column bolted joints. Brittle fracture (that is, brittl...

AI Technical Summary

Problems solved by technology

The oblong hole of this node is set at the joint of the steel beam flange and the web, and the connection between the steel beam root and the steel column is still connected by a weld. Therefore, under the action of a rare earthquake, when the rotation range of the steel beam joint exceeds its At the limit of rotation capacity, it is still possible to cause welding brittle failure at the root of the steel beam and the steel column

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