每时每刻都在变化的灯光天花板
这个项目是位于日本长野的一个生殖医疗中心。采用自然调整身体周期的医学理念，诊所的天花板由木质桁架和半透明的天花板层组成，根据自然阳光的供应情况，每时每刻都在改变其外观。内部空间几乎没有柱子，横跨整个建筑的木质桁架允许自由规划。中间最长的跨度桁架最大高度为1.7米，并根据每个跨度的长度逐渐减少。承载各种空气量的柱廊空间成为一个光池，根据一天中的时间、天气和一年中的季节而变化。半透明的天花板层促进了光线的扩散和反射。

A light ceiling that changes in every moment
This project is a reproductive medical center in Nagano, Japan. Adopting the medical philosophy of adjusting the body cycle naturally, the clinic is layered with a light ceiling that is made of wooden trusses and a translucent ceiling layer that changes its appearance every moment according to the provision of natural sunlight. Almost no column is plotted in the internal space, the wooden trusses that span across the building allow free planning. The longest span truss in the center is at a maximum height of 1.7m and gradually decreases according to the length of each span. The plenum space which carries various air volumes becomes a light pool that changes depending on the time of day, weather, and season of the year. The translucent ceiling layer promotes diffusion and reflection of light.

形状和轴线
米布河流向场地的南部，南阿尔卑斯山山脉远在东南方向。场地的形状类似于一个平行四边形，而建筑是沿着它铺设的。从结构上看，将龙门桁架的轴线设置在对角线形状的短边上，并将空间的视线引向东南方向，是比较有效的。拉长形状的墙体根据视线的变化而改变其可视面积，同时创造出开放性和封闭性。

Shape and Axis
The Mibu River flows to the south of the site, and the Southern Alps mountain range is far to the southeast. The shape of the site is similar to a parallelogram, and the building is laid along to it. Structurally, it is more efficient to set the axis of the gantry trusses to the short side of the diagonal shape and direct the view of the spaces to the southeast. The elongated shape wall changes its visible area depending on the line of sight, creating both openness and closure at the same time.

一个放松的等待区被放置在面向东南视线的宽大的钝角空间，而需要更多封闭的医疗项目室则位于西北方向。由于办公空间是诊所运作的核心，它位于建筑的中心，以便有效和更简单地移动到每个房间。通过根据场地的形状来扭曲建筑，它在内部创造了所需的空间，并保证了室外所需的停车位数量。

A relaxing waiting area is placed at the wide obtuse-angled space facing the southeastern view while the medical program rooms which required more enclosed closure are located on the northwest. Since the office space is the core of the clinic operation, it is located in the center of the building for efficient and simpler movement to each room. By distorting the building according to the shape of the site, it creates spaces at the required size internally and secures the number of parking spaces required outdoor.

从长远考虑供应链的木制建筑
场地所在城市的80%被森林覆盖。使用当地的木材不仅很重要，而且，我们还考虑了如何由当地工匠组装结构部件。为了达到这个目的，我们设计了一个简单的结构形式，可以用当地市场上的标准木材来制作，并尽可能避免使用特殊加工的层压木材。这座建筑的木质桁架是通过将90毫米宽的木材劈成两半，然后用90毫米的木柱将其夹在一起而简单制成。然后，用最小的螺栓固定，用漂移销连接。自COVID-19以来，木材冲击已经袭击了日本，木制建筑应从长远考虑其供应链。

Wooden Architecture that considered the supply chain in the long term
80% of the city where the site is located is covered by forest. It is not only important to use the local timber but, we also considered how the structure parts can be assembled by local craftsmen. To achieve that, we designed a simple structural form that is possible to be made by standard lumber that is available on the local market and avoids using special processed laminated lumber where possible. The wooden trusses of this building are simply made by splitting the 90mm width lumber into half and sandwiching them together with 90mm wood posts. Then, fastened by minimal bolts and jointed with drift pins. Wood shock has hit Japan since COVID-19, wooden architecture shall consider its supply chain in the long term.

Architects: Kubota Construction, OTA Archistudio
Area: 447 m²
Year: 2020
Photographs: Shota Kikuchi
Manufacturers: K.I.N., LIXIL　, Mitsui Home Components
Construction: KUBOTA CONSTRUCTION CORP.
Structural Design: Megumi Tamura Structural Factory, Megumi Tamura
Lighting Design: Sugio Lighting Design Office, Atsushi Sugio
Chief Architect:Takehiro Ota
Project Designer:Dai Chiba
Soundscape Design:Taisuke Kimura
Plan Execution:Nagahisa Kubota
Architects:OTA Archistudio, OTA Archistudio
City:Nagano
Country:Japan