Crossed column base node with additional lateral-resistance and buckling-resistance shearing wall and functions recoverable after earthquake

The invention relates to a crossed column base node with an additional lateral-resistance and buckling-resistance shearing wall and functions recoverable after an earthquake, and belongs to the fieldof structural engineering. The node is composed of a square steel column, a crossed hinge base and replaceable slotted lateral-resistance energy-consumption devices which are arranged on the two sides. According to the node, designing concepts of damage control, replaceable energy-consumption members, moment modification, vertical bearing, horizontal lateral-resistance separation and the like areapplied, and the advantages of traditional rigid connection columns and traditional hinge columns are combined. Shape memory alloy is taken as the material of a column bottom supporting seat to improve the force bearing performance of the node and prolonging the service life. The moment modification is achieved through reasonable designing to reduce on-column bending moment, so that the node is protected from damaging, pri