設計單位? Takeshi Hirobe Architects

項目地點? 日本長野（Karuizawa City, Nagano）

完成時間? 2022年9月

建筑面積? 205.53平方米

本文英文原文由Takeshi Hirobe Architects提供，由有方編譯。

這座住宅專為一位從城市遷居至鄉村高地、計劃遠程工作的客戶設計。場地呈平緩斜坡狀，西側臨路，向東延伸后陡然下降。一條小溪在下方流淌，形成一處幽靜的山谷。因此，住宅與最近的房屋（位于山谷對面）相距甚遠。這一側的景致由層層疊疊、密集生長的樹木構成，從山坡向下延伸。為充分利用這周圍環境，住宅的東南角設計了一個大型觀景窗。

This residence was designed for a client who relocated from the city to a rural highland area with the intention to work remotely. The site is characterized by a gentle slope that runs from the west side, which faces a road, to the east before dropping sharply. A small stream flows below, forming a modest valley. As a result, there is a significant distance between the residence and the nearest house, located across the valley, and the view on this side is marked by trees that cascade down the slope in a dense, layered arrangement. To make the most of these surroundings, the southeast corner of the residence was designed to accommodate a large picture window.

長野輕井澤以涼爽宜人的夏季聞名，但冬季卻異常寒冷，氣溫可降至零下10攝氏度以下。因此，此地的住宅地基必須建在凍土深度以下。雖然當地房屋地基有時會獨立于主體結構進行挖掘，但本設計中，結構本身也位于凍土深度以下，這部分空間被有效利用。應客戶要求，在地下部分安裝了一張標準尺寸的臺球桌，作為提升住宅價值的亮點融入了整體設計。

The town of Karuizawa is known for its cool and refreshing summers, but the winters can be harsh, with temperatures dropping below -10°C. Because of this, the foundations of homes here must be built below the frost depth. While parts of home foundations here are sometimes dug independently from their main structures, the structure itself, in this case, also lies below the frost depth, and this portion of the house was utilized effectively: at the request of the client, a full-size billiard table was installed in this belowground section, which was incorporated into the design of the residence as a value-adding enhancement.

為抵御冬季嚴寒，住宅地板下方安裝了水基熱能儲存系統。該系統吸收一天中的溫度變化，創造熱穩定性，同時兩臺熱泵空調確保24小時氣候控制。還配備了一個燃木火爐作為熱源。在引入室外空氣最為舒適的時候，熱能儲存系統則專門用于調節溫度波動。上文提及的凍土層以下的地基也構成了該熱能儲存系統的一部分。

To combat the winter cold, the house features a water-based thermal-energy storage system beneath the floor. This system absorbs temperature changes throughout the day, creating thermal stability, while two heat pump air conditioners ensure 24-hour climate control. There is also a wood-burning stove for use as a heat source, and at times when letting in outside air is the most comfortable option, the thermal storage system is used solely for regulating temperature fluctuations. The foundation below the frost depth (as explained above) also functions as part of the thermal storage system.

建筑中部附近設有一道木桁架剪力墻。該墻體采用60毫米厚的材料，以方形網格布置，并用45毫米的對角構件加固。這些對角構件同時起到抵抗水平荷載的支撐作用，并進一步由更小的30毫米對角構件加強。這種漸進式加固顯著提高了墻體的抗屈曲強度。除了功能性作用，這種結構元素通過對空間尺度的感知產生影響，也為室內美學做出了微妙而富有動感的貢獻。

Near the center of the building is a wood-truss shear wall, created using 60-millimeter-thick material laid out on a square grid and reinforced by 45-millimeter diagonal members. These diagonal members also function as bracing for horizontal loads and are further reinforced by smaller 30-millimeter diagonal members. This progressive reinforcement enhances the wall’s buckling strength. In addition to serving a functional role, this structural element makes a subtle yet dynamic contribution to the interior aesthetic by influencing the perception of scale within the space.

住宅的剖面結構比較復雜，雖然技術上是一座兩層建筑，但設計將空間劃分為多個不同的層級，同時保持了整個內部空間的統一感。這種空間平衡由六個精心界定的樓層支撐，每個樓層都根據特定區域的需求量身定制。通過這種方式，設計過程不僅回應了土地的地形，也在建筑內部創造了一片獨特的新“地形”。

The cross-sectional composition of the residence is quite complex. Although it is technically a two-story building, the design divides the space into multiple distinct levels while at the same time maintaining a unified feel throughout the whole interior. This spatial balance is supported by six carefully defined floor levels, each tailored to the needs specific to each area. In this way, the design process involved not only responding to the land’s topography but also creating a distinctive new “terrain" within the architecture itself.

完整項目信息

項目名稱：YMK

建成時間：2022.9

項目地址：日本長野縣輕井澤市（Karuizawa City, Nagano）

設計時間：2020.9—2021.10

建設時間：2021.10—2022.9

用地面積：1841.74平方米

建筑面積：205.53平方米
設計單位：Takeshi Hirobe Architects

設計團隊：Takeshi Hirobe、Risa Makino

結構工程師： Mika Araki / Mika Araki Structural Engineers

總承包商：Happia design

攝影：Koichi Torimura

設計單位信息：

Takeshi Hirobe Architects

1-13-2 Suwa Takatsu-ku, Kawasaki-shi Kanagwa 213-0004Japan

Phone: +81 44 833 9798

E-mail : info@hirobe.net

URL : www.hirobe.net

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