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狭小な敷地に最大限の容積を確保した鉄骨造3階建て耐火構造のビル。1階に事務所、2階に水回りと休憩スペース、3階はヨガのオンライン講座の配信、収録のためのスタジオが入る。
屋内側からの固定可能な50ｍｍ厚のALC板を耐火構造の外壁として採用することで、壁面ラインを隣地境界側に近づけ、立面においても、天空率計算により前面道路からの斜線制限を超えた最大の長方形ファサードとなるよう計画し、建物内部の有効容積を大きく確保することを考えた。
また、隣地建物に囲まれて直接採光が期待できない建物西側に、鉄骨階段の吹き抜けを計画することで、3階南面からの光を建物西側1階まで引き込むことを考えた。
A steel-framed, three-storey, fire-rated building with maximum volume on a narrow site, housing offices on the ground floor, water and rest areas on the second floor and a studio for delivering and recording online yoga classes on the third floor.
The building was designed to have a rectangular facade with the wall line closer to the neighbouring site boundary by using 50mm thick ALC panels, which can be fixed from the inside, as the fire-rated external walls, and to have the maximum rectangular facade on the elevation, exceeding the diagonal restriction from the front road by calculating the sky coverage ratio, thereby ensuring a large effective volume for the building's interior.
The building is surrounded by neighbouring buildings on the west side, where no direct light is expected, and a steel staircase is planned to direct light from the south side of the third floor to the first floor on the west side of the building.
