CONSTRUCTION METHOD FOR BASE-ISOLATED BUILDING, AND BASE-ISOLATED BUILDING

摘要

PROBLEM TO BE SOLVED: To improve the flexibility in design of ground stories by relaxing restrictions of building specifications of the ground story resulting from a seismic isolator, in a construction for case-isolated building.

SOLUTION: There is provided a method of constructing the base-isolated building using the underground skeleton of an existent building having underground stories. The method includes: a ground skeleton demolition process of demolishing the ground skeleton of the existent building; an underground skeleton alteration process of altering the underground skeleton by demolishing a part of an upper part of the underground skeleton while leaving and using at least one underground story of the underground skeleton of the existent building; a seismic isolator installation process of supporting the seismic isolator by the underground skeleton while arranging the seismic isolator in an underground space formed by demolishing the part of the upper part; and a ground-side skeleton forming process of forming a ground-side skeleton having at least the ground stories and supported by the underground skeleton in a base-isolated state through the seismic isolator.

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