Self-resetting frame joint

Abstract

The invention belongs to construction field and relates to a self-resetting frame joint. The self-resetting frame joint comprises a concrete beam (1) and a concrete column (2). The concrete beam (1) and the concrete column (2) are connected through an unbonded low-relaxation prestressed steel strand (3) and an angle steel (9), a third steel pate (8) is disposed at the ends of the concrete beam (1), a first steel plate (5) is disposed on the place of the concrete column (2) near the beam side, a second steel plate (7) is disposed on the place of the concrete column (2) facing away from the beam side, and the unbonded low-relaxation prestressed steel strand (3) passing through the third steel pate (8) of beam ends and the first steel plate (5) of the column side is anchored in the outer side of the second steel plate (7) of the column side through an anchorage (10). The concrete beam (1) and the concrete column (2)are respectively connected with the angle steel (9) through a screw (4) and a nut (5), and the first steel plate (5) contacts with the third steel plate (8). The self-resetting frame joint has the advantages of stable structure under small earthquakes, large deformation structure with no damage under strong earthquakes, and self-resetting structure after earthquakes.

Description

technical field [0001] The invention belongs to the field of construction engineering, and relates to the technology of energy dissipation and shock absorption of building structures, especially a self-resetting structure. technical background [0002] Recoverable functional structure is a new type of shock-absorbing control structure. It can not only protect people's lives and property during earthquakes, but also help people return to normal life as soon as possible after a major earthquake. It is an ideal new structure for seismic design. direction. Restorable structural systems mainly include replaceable structural components, rocking structures, and self-resetting structures. In recent years, studies have shown that the sway of the structure can reduce the seismic action and the ductility design requirements of the structure itself, reduce the earthquake damage, and save the structural cost. Relax the constraints between the structure and the foundation or between the...

AI Technical Summary

Problems solved by technology

[0003] At present, the self-resetting structure belongs to an innovative research field in terms of structural earthquake resistance, and the frame beam-column joints with self-resetting ability need to be researched and developed

Images