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Mount Fuji

House toward Tateyama . Toyama

Mount Fuji .  House toward Tateyama . Toyama  (2)

Mount Fuji Architects Studio . photos: © Ryota Atarashi

The site, which overlooks the rice fields and the Tateyama peaks, is located in Toyama Prefecture of the Hokuriku region.
Here, the client wanted to build a house for a family of four.
We searched for a composition that integrates spaces with two distinct qualities: one that is free and expansive, and opens toward the rich environment; and another that is enclosed to nurture intimate relationships between the family members..
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The idea was achieved by placing a wooden, introverted space of a moderate scale over a RC structure that was arranged discretely to freely extend toward the rich surroundings. The resultant composition integrates two separate systems with different baselines over a single plane. The baseline, therefore, does not continue throughout the plan, creating a design which would have been impossible to achieve in the past. However, this forces the upper and lower spaces to cross over each other, causing multiple connections and light interferences, and breathing life into the house as a dynamic phenomenon.

In terms of construction, “liberation from the baseline” is made possible by the large-section laminated timber with 2,100 mm height that holds the upper wooden structure. This gigantic vertical section achieves enough flexural strength to secure the entire floor height at once. Furthermore, it provides enough vertical stance and forms a perfect wooden rigid joint in this direction, making it possible to easily support the structurally “illogical” problems caused as a result of having different baseline on the top and bottom layers.

Although I just wrote “illogical”, when I look at the surrounding environment, there aren’t many examples of purely logical structures (setting principle aside). The peaks of Tateyama, for example, have rocks that overhang in one place and soar in another, which is a form of nature created by having enough quantities of matter. The interest generated by generous wood or concrete mass that exist freely and independently from the baseline is similar to the one we feel when we observe the peaks of Tateyama.
Until now, the baseline had been an absolute limitation in architecture. By liberating architecture from the baseline, we shall see it advance into a new phase, both in terms of space and existence.

(Masahiro Harada)
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principal use:private residence
site area:1467.51m2
building area:243.98m2
total floor area:192.91m2
number of stories:1 story
structure:reinforced concrete. partly wood frame
design:2012.9 – 2013.11
construction:2015.9 – 2016.7

立山連峰を稲田越しの正面に見晴らす、北陸富山の敷地。
 ここに家族四人が暮らす住宅を、という依頼だった。
 その恵まれた周辺環境へと閉かれた伸びやかな空問と家族の親密な繋がりを育むように程よく閉じた空問。その性格の異なる2種類の空問が重なるような平面構成を求めた。
 それは豊かな周辺へと伸び行くよう離散的に配されたRC壁造による解放的な空間の上層に、これとは無関係に木壁造による内向的で程よいスケールの空間をストンとのせることで現実化されたが、これは一枚の平面に2種類の異なる"通り芯"の体系が重ねられたことを意味している。"通り芯"が"通っていない"という、これまでの建築ではありえなかつたことが起こるわけだが、これによって、質の異なる上下の空間は跨ぎあい始め、複数の結びつきや光の干捗が生じ,単調ではない豊かな現象が発生することになった。
 この建築の"通り芯からの解放"は、構築的には上層の木壁造を成立させる梁成2,100ミリの大断面集成材によるところが大きい。その階高を一息に確保してしまう程に巨大な縦断面が十分な曲げ強度を獲得し、さらにそれが接合部鉛直方向の十分なスタンスとなることでこの方向については完全な木造剛接合が実現するため、上下の通り芯がずれることで生じる力学上の不合理を、余裕を持って受け入れることが可能になったのである。
 不合理と今ぼくは書いたが、しかし、土地を見渡せば,力学上純粋な合理的形状を表すものはそう多くはない(原理は別だが)。たとえば、正面の立山の峰々も,その岩塊は時にオ一バーハングし、また時には吃立するが、これも十分な物質の"量"が可能にする、ありうべき"自然の形"である。木の、或いはコンクリ一トのたっぷりとした質量が、通り芯から自由に、自律的に存在することで生じる感興は,立山の峰々を見る時のそれに近いように思う。

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