How to build a base isolation system and the base-isolated structure

摘要

PROBLEM TO BE SOLVED: To provide a base isolation device and a construction method of a base isolation structure for realizing a high performance and inexpensive small-scale base isolation building in a short construction period.;SOLUTION: A reinforced concrete plate-like foundation board is constructed on the ground, and its upper surface is horizontally finished. At this time, a sliding plate is driven in a flush shape in an upper surface of foundation board concrete. The base isolation device fixed to the concrete upper board side and bar arrangement of an upper board are performed on the upper surface, and concrete of the upper board is placed. When rotating an upper part of the base isolation device after hardening the concrete, a base isolation device body is formed as a screw structure, and thereby gradually projects to the foundation board side, and becomes the base isolation structure by pushing up the upper board.;COPYRIGHT: (C)2004,JPO&NCIPI