METHOD FOR CONSTRUCTING BASE-ISOLATED BUILDING BY INVERTED CONSTRUCTION METHOD

摘要

PPROBLEM TO BE SOLVED: To provide a method for constructing a base-isolated building by an inverted construction method, which dispenses with a jack for temporary support, despite the adoption of construction procedures of installation of a base-isolating device after the erection of a temporary steel column, and which enables the operation of installing the base-isolating device to be performed in a wide space with an opened upper section. PSOLUTION: When the base-isolated building, wherein a base-isolated layer is formed underground, is constructed by the inverted construction method, the temporary steel column 3 for directly transferring a load of an upper building frame, constructed above the base-isolated layer A, to a pile 2 is erected in a position not to interfere with the base-isolating device 4 which is installed in the base-isolated layer; the base-isolating device is installed on the top surface of a lower building frame 7a positioned directly below the base-isolated layer; subsequently, the upper building frame 7b, which is positioned directly above the base-isolated layer, is constructed while being supported on the temporary steel column; and after that, the temporary steel column is cut off in a part of the base-isolated layer, so that the upper skeleton constructed above the base-isolated layer is supported by the base-isolating device. PCOPYRIGHT: (C)2010,JPO&INPIT