STRUCTURE AND METHOD OF INSTALLING VISCOUS SEISMIC CONTROL WALL ONTO EXISTING SRC CONSTRUCTED BEAM

摘要

PROBLEM TO BE SOLVED: To provide a installing structure having good work executable properties and improved in seismic control performance by making the vertical width of a viscous seismic control wall longer as much as possible in fitting the viscous earthquake restricting wall to an existing SRC constructed beam. SOLUTION: A lower steel frame 6 extending along the longitudinal direction of the beam is bound on the existing SRC constructed beam 1 by an anchor bolt 11 driven in a clearance between an upper flange 9a of a beam steel 9 and a beam main reinforcement 10 and a nut 12 screw-engaged with the anchor bolt. An upper steel frame 7 extending along the longitudinal direction of the beam is bound on an SRC constructed beam 1 of an upper floor through a resin anchor bolt 17 driven in the beam concrete and a nut 18 screw-engaged with the resin anchor bolt. A lower flange of the viscous seismic control wall 2 is joined to the lower steel frame by a bolt, and an upper flange of the viscous seismic control wall is joined to the above steel frame by a bolt.