Building W type keel

The utility model discloses a keel used in the architecture, comprising the long strip-shaped first and second lateral wings that parallel to each other. The utility model is characterized in that the keel also comprises a first and second vibration damping winds that vertically expand from the opposite directions of the same side of the first and second lateral wings and a concave vibration damping part that is connected between the adjacent sides of the first and second vibration damping winds. The keel of the utility model, and a light partition made from plasterboard and rock wool plate, etc, have remarkably better sound insulation effect than that of the wall body used a 'C'-typed keel.