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1. (WO2014203367) SEISMIC ISOLATION FLOOR STRUCTURE

Pub. No.:    WO/2014/203367    International Application No.:    PCT/JP2013/066925
Publication Date: Thu Dec 25 00:59:59 CET 2014 International Filing Date: Fri Jun 21 01:59:59 CEST 2013
IPC: F16F 15/02
F16F 15/04
Applicants: HITACHIMETALSTECHNO,LTD
日立機材株式会社
Inventors: OHSHIMA Takashi
大嶋 貴
HOSAKA Shinpei
保坂 晋平
Title: SEISMIC ISOLATION FLOOR STRUCTURE
Abstract:
Provided is a seismic isolation floor structure that can prevent seismic isolation performance reduction, due to a rolling body separating from a portion of a seismic isolation structural body, even if portions of a floor surface have irregularities formed therein or uplift occurs in a seismic frame due to an earthquake or the like. A seismic isolation floor structure (40) has a seismic isolation frame (42) provided with a plurality of frames (46, 48), and a plurality of seismic isolation support sections (44) for supporting the seismic isolation frame (42), wherein the seismic isolation support sections (44) comprise the following: a seismic isolation structural body (60) that has a plurality of rolling bodies (70) and that is installed above a floor surface (43a) so as to be horizontally movable; a connection member (54) that is disposed above the seismic isolation structural body (60) and that is connected to the seismic isolation frame (42); an elastic plate-shaped member (64) that is disposed between the connection member (54) and the seismic isolation structural body (60); and a rod-shaped member (56) one end of which extends downward and is fixed to the seismic isolation structural body (60) and the other end of which extends upward and passes through, with play, a through hole (54c) formed in the connection member (54).