Concrete spiral staircase disrupts linear interiors of House in Ashiya
螺旋樓梯打破了這座日本住宅的線性幾何形狀，該住宅由Kazunori Fujimoto Architects＆Associates事務所設計，整座建築幾乎完全由混凝土建造。
這座建築是為一對夫婦及其四個孩子而建造，坐落在Hyōgo最受歡迎的旅遊勝地Mount Rokko。
這座住宅開窗很小，可以阻擋附近道路的噪音，並可以將風景引入室內。
A spiral staircase breaks the linear geometry in a Japanese house designed by Kazunori Fujimoto Architects & Associates, which is made nearly entirely of concrete.
The house is built for a couple and their four children and sits at the base of Mount Rokko, a popular tourist destination, in the Hyōgo prefecture.
The studio designed the home with minimal openings to block out sound from a nearby road and orientate views out to the picturesque scenery.
建築分為兩個立方體、兩個樓層。
旋轉樓梯是走廊盡頭的第一處景觀。它由CNC模具建造，運輸到現場並在現場進行澆鑄，是建築的點睛之處。
The house is split across two floors within two cuboidal volumes.
The spiral staircase is the first feature in view at the end of the corridor. It was formed from a CNC-routed mould, transported to the site and cast in-situ as the house's finishing touch.
Kazunori Fujimoto Architects＆Associates事務所將樓梯定義為建築的精神意義。 在神道教中，該術語應用於一個物體，這個物體會通過物質容器來吸引靈魂。
工作室創始人Kazunori Fujimoto解釋說：“樓梯超出了它的功能，象徵著這座住宅裡整個家庭的團結。”
Designed as the central feature of the home, Kazunori Fujimoto Architects & Associates gave spiritual significance to the staircase as a yorishiro. In the Shinto religion, this term is allocated to an object that will draw spirits in with a physical vessel to occupy.
"The staircase goes beyond its function and becomes the yorishiro, which symbolises the unity of the family in this house," explained Kazunori Fujimoto, founder of his eponymous studio.
建築的內部佈局反映了它的線性外觀，因為建築師選擇了厚重的水平和垂直平面作為壁架和牆壁，以表達“空間的純粹”。
這些部分與樓梯的曲線形成對比，曲線旨在柔化內部的剛度。
The house's internal layout reflects its linear exterior, as the studio opted for thick horizontal and vertical planes for ledges and walls to express "spatial purity".
These are contrasted by the curved lines of the staircase, which aims to soften the rigidity of the interior.
廚房和起居區位於開放空間裡，這個空間與入口和樓梯有著同樣的體量。
完全開放式設計為家庭的六個成員提供了小型聚會空間。
人們可以通過大窗戶上方的鋼梯進入上方夾層。
The kitchen and living area occupies the immediate open space inside the same volume as the entrance and stairs.
Completely open plan, it provides a space for all six members of the family to gather together within the small-sized house.
An upper mezzanine level above the entrance can be accessed up a steel ladder above a large window.
整座建築的窗戶都高高地位於牆體上方，保持家人與鄰居之間的私密性，並將遠處的景觀引入室內。
建築位於弗蘭克·勞埃德·賴特的Yodokō招待所附近，建築師平衡了開窗和圍欄的數量，以阻止來自受歡迎的旅遊景點的噪音。
牆壁和窗戶相對於房間中心具有旋轉對稱性，Fujimoto認為，這在日本是“風車狀”佈局。
他解釋說：“圍牆圍住了私密的起居區，而窗戶則同時打開了它。”
Windows throughout the house were placed high on the house's walls to maintain the family's privacy from their neighbours and replace views with the mountainous scenery.
Located near Frank Lloyd Wright's Yodokō Guest House, the studio balanced the number of openings and enclosures to block out noise from the popular tourist spot.
The walls and windows have rotational symmetry from the room's centre, which according to Fujimoto, is named the "windmill style" layout in Japan.
"The wall surroundings safe living areas while windows make it open at the same time," he explained.
儘管它在建築中很重要，但建築師仍將樓梯設計在拐角處，佔用儘可能少的空間。
這使得螺旋區域下方有流通的空間，這裡可以通向第二個體量中的主臥。
Despite its importance in the house, the studio designed the staircase to take up as little space as possible in the corner.
This decision allowed for connective circulation space underneath the spiral, which leads to the master bedroom in the second volume.
一樓由兩個隔牆分成四個大小相等的臥室。它們位於中心位置，在周圍留出了550毫米的空間，讓孩子們可以通過。
建築設置了三面大開窗，由於這些開窗放置在每面牆的中央，因此兩間臥室可以共享一個開口。
The first floor is divided into four equally sized bedrooms by two partition walls. Standing at the centre of the plan, they leave a 550-millimetre space around the perimeter for the children of the house to snugly pass between.
A large opening perforates three of the volume's facades. As these are placed in the centre of each wall, two bedrooms are able to share one opening.
Fujimoto對精緻的混凝土螺旋樓梯並不陌生，他之前曾在Akitsu住宅中使用過這種樓梯。同時，Hildebrand在瑞士的Hapimag工作室也採用了這一手法。
攝影：Kazunori Fujimoto
Fujimoto is no stranger to delicate concrete spiral staircases, which he employed previously in House in Akitsu. Meanwhile, Hildebrand employed one at a larger scale for the Hapimag office in Switzerland.
Photography is by Kazunori Fujimoto.
項目信息：
建築設計：Kazunori Fujimoto Architect & Associates (Kazunori Fujimoto, Andrea Ferri)
結構工程：Eiken Structural Consultants, Eiichi Tsumura
施工團隊：Yamamoto Koumuten
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