SEISMIC RESPONSE CONTROL COLUMN BASE STRUCTURE AND SEISMIC RESPONSE CONTROL STRUCTURE USING THIS STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a seismic response control column base structure and a seismic response control structure using this structure, for constituting a friction damper in a column base part.;SOLUTION: This column base structure 101 supports a lower end part of a column 10 by a baseplate 22 fixed on base concrete 12 by screw fastening of an anchor bolt 24 and a nut 26, and is constituted to generate frictional force of the predetermined size by mutually pressurizing mutual these contact surfaces 10b and 15d by force in the right-angled direction to these surfaces, by directly or indirectly contacting a side surface 10b of a column lower end part with opposed surfaces of an installation member 15 erected on the baseplate and having the opposed surfaces 15d opposed to a side surface of the column lower end part. The mutually pressurized and contacted opposed surfaces between the the side surface of the column lower end part and the installation member, constitute the friction damper for absorbing energy of external force by mutually frictionally sliding mutual these surfaces when force of the frictional force or more acts between these surfaces when the external force such as an earthquake is inputted.;COPYRIGHT: (C)2006,JPO&NCIPI