YAMAZAKI KENTARO DESIGN WORKSHOP

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熱海の茶房

Tea house in Atami

熱海 / 茶房

Atami / Tea house

計画は60平米ほどの小さな建築で、仕事をリタイアしたご夫婦が営む茶房である。敷地は、来宮神社から急な坂を登ってしばらくのところにある。斜面地を敷地分だけ削り取られ、その環境は暴力的に感じられた。しかしながら、奥行きの長い敷地には、奥に向かってわずかに勾配があったり、敷地に沿って、心地よいせせらぎの音が聞こえる。このように暴力的な環境から客を守り、周辺に見えがくれする小さな魅力を存分に味わえる建築をイメージした。
細長い敷地の長手方向に崖条例のため、崖上からの土砂崩れに対してコンクリート擁壁、一方崖下からからは安息角の下までの基礎を下げた深基礎になっている。この地面から持ち上げられたL字型のRC造の上に、軽やかな木造の架構をかけた。RC造は客を激しい環境から守り、木架構は柔らかく人包みこむ。この敷地において、最適な構造形式だと考えた。また水平力はRC造が担うので、上部の木造部分には風景の邪魔になるような構造材を設けずに済んだ。天井高さを2,100と低く抑えられた空間で、客はRC造と一体になったベンチに体を預け、軒の先に広がる樹木と小川のせせらぎだけを楽しむことができる。
We were approached by a retired couple to design a tea house, which is a small building of about 60 square meters. The site is located a short walk from Kinomiya Shrine, up a steep slope. The site itself was carved out of this slope, which made for an environment that felt rather violent. However, there is a slight gradient that extends toward the depth of the site, and the pleasant sound of a babbling brook can be heard all along the premises. We imagined architecture that would protect customers from such a violent environment so they could fully savor the small charms that can be seen and heard hidden away from the surroundings.
In the longitudinal direction of the long and narrow site, there is a concrete retaining wall to protect against landslides from the top of the cliff and a deep foundation which has been lowered from the bottom of the cliff to the line of the angle of repose, in compliance with regulations for building near cliffs. The light wooden frames were hung on the L-shaped reinforced concrete structure lifted from the ground. Reinforced concrete construction protects customers from severe environments, and the wooden frame softly wraps the person. We felt this to be the most suitable structure for this site. In addition, since the horizontal force is borne by the concrete structure, it was not necessary to install any structural reinforcements in the upper wooden portion that would obstruct the scenery.
In a space where the ceiling height is kept to 2,100 mm, customers can rest themselves on a bench integrated with the concrete structure and fully enjoy a view of the trees spreading beyond the eaves and the sound of the babbling stream.
所在地

静岡県熱海市

敷地面積

444.04 m2

延床面積

49.93 m2

プログラム

飲食店

構造

RC造(一部木造)

階数

平屋

構造設計 多田脩二構造設計事務所
撮影 黒住 直臣
Location

Atami-shi, Shizuoka, JAPAN

Site Area

444.04 sqm

Floor Area

49.93 sqm

Principle use

Restaurant

Structure

RC (partly wooden)

Story

1F

Structural Design Shuji Tada Structural Design Office
Photo Naoomi Kurozumi