Steel Column easy to repair foot shock shaped columns latter

Easy Repair shaped column structures steel stub latter earthquake, since the reset pin stub prestressing force to optimize the performance of the column and the horizontal axis at the bottom of the column through the reinforcing plate, sheet buckling is mainly used to dissipate seismic energy , the clipboard is to prevent excessive shear cause local yielding a column bottom; the key member is prestressed prestressing stub lever rod role is to provide a pre-pressure to the column and the beam column tight connection, so that the column approximate rigidly connected to a bending moment when the foot is small, and it has the ability to self-reset after the earthquake.