The invention discloses a rotational friction energy dissipation-SMA
coupling pseudo-classic building self-resetting steel joint and method. The building friction energy dissipation-SMA
coupling pseudo-classic building self-resetting steel joint comprises a
beam column joint consisting of a circular steel
pipe lower column, a square steel
pipe upper column and a rectangular section steel beam, and a
cornice component is arranged between the joint of the circular steel
pipe lower column and the square steel pipe upper column and the rectangular section steel beam; the
cornice component comprises a lower
cornice component, a cornice component and an upper cornice component, a rotational friction energy dissipater is arranged in the cornice component, the rotational friction energy dissipater is connected with the rectangular section steel beam by being hinged to an upper support in the upper cornice component, and the circular
steel tube lower column and the square
steel tube upper column node are connected through a
shape memory alloy connecting piece in the lower cornice component. According to the joint, energy is consumed through friction plates under the earthquake effect, the damage self-repairing capacity is improved through a
shape memory alloy connecting rod, therefore, damage to a steel structure pseudo-classic building body is reduced, the anti-seismic performance of a pseudo-classic building steel
structure system can be improved, and the attractiveness of the pseudo-classic building steel
structure system is kept.