To provide a base isolation structure 1 capable of securing a work space in a space 22 under a hoistway 40 by not providing a base isolation support at a lower end of the hoistway 40.SOLUTION: A base isolation structure 1 includes: a lower structure 20; an upper structure 10 supported on the lower structure 20 via a base isolation device 30; and a hoistway 40 of reinforced concrete construction having an upper end fixed to the upper structure 10 and extending downward inside the lower structure 20. The hoistway 40 includes: a wall portion 44 for forming an internal space 43 in which an elevator car 42 ascends and descends; a bottom portion 46 closing the internal space 43 at a lower end of the wall portion 44; and a plurality of first tendons 51 and second tendons 52 extending in the wall portion 44 from the upper structure 10 toward the bottom portion 46. The wall portion 44 has a prestressed concrete structure in which tensile force is applied to the plurality of first tendons 51 and second tendons 52.SELECTED DRAWING: Figure 4

    【課題】本発明は、昇降路40の下端に免震支承を設けないことにより、昇降路40の下の空間22に作業空間を確保できる免震構造物1を提供する。【解決手段】免震構造物1は、下部構造体20と、下部構造体20の上に免震装置30を介して支持される上部構造体10と、上部構造体10に上端が固定され、かつ、下部構造体20の中を下方へ延びる鉄筋コンクリート造の昇降路40と、を備える。昇降路40は、エレベータかご42が昇降する内部空間43を形成するための壁部44と、壁部44の下端で内部空間43を閉塞する底部46と、壁部44内を上部構造体10から底部46へ向かって延びる複数の第1緊張材51及び第2緊張材52と、を含む。壁部44は、複数の第1緊張材51及び第2緊張材52に引張力が付与されたプレストレストコンクリート構造である。【選択図】図4


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    Title :

    BASE ISOLATION STRUCTURE


    Additional title:

    免震構造物


    Contributors:

    Publication date :

    2023-08-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    E04H Gebäude oder ähnliche Bauwerke für besondere Zwecke , BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES / B66B Aufzüge , ELEVATORS / E04B Allgemeine Baukonstruktionen , GENERAL BUILDING CONSTRUCTIONS



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