DESIGN WORKS Vol.36

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Works26レンガ組積造と鉄筋コンクリート造をハイブリットした特徴的な構造体を補強し、外壁と玄関ホールを建設当時の形に保存・復元を行うことで札幌の代表的な街並みの修景を行った商業施設である。インテリアは、大正時代の組積造と現代の梁がなく薄いフラットスラブを吹抜をはさんで対峙させ、新旧技術の対比が緊張感を生む印象的なデザインとした。全体をかろやかなヴォールト天井でおおうことで、北海道の食文化を代表する北菓楼の解放感のある店舗と、中空に浮く落ち着きある喫茶空間をひとつにまとめた。壁面には本棚を設け、かつて図書館であったことの記憶装置とし、歴史的建造物を静的な保存ではなく同時代に活用されつづける建築として再生した。(横尾 淳一）北菓楼札幌本館KITAKARO Sapporo HonkanConversion of a historic building歴史的建築物のコンバージョンOwner: HORI HoldingsLocation: Sapporo-city, HokkaidoMain Use: Shop & CafeteriaDesign and construction work: Takenaka Corporation·Architects: Yoshiyuki Nakasato, Arihito Kawai,and Junichi Yokoo·Structural: Tuyoshi Aritake, Ryouhei Yamazaki·M&E: Kazuhide Miyamoto·Site manager: Akihiko TaniguchiThe basic design：Tadao Ando Architect & AssociatesSite area: 885.81m2Building area: 537.32m2Total floor area: 1,351.38m2Construction: Masonry, Steel, Reinforced concrete,and Steel reinforced concreteNumber of stories: 1 floor under ground,4 floors above groundConstruction term: December 2014 to March 2016建築主：合資会社ホリホールディングス所在地：北海道札幌市主要用途：菓子店舗基本デザイン：安藤忠雄建築研究所設計施工：竹中工務店・設計：中里嘉亨・河合有人・横尾淳一・構造：有竹剛・山崎遼平・設備：宮本一英・作業所長：谷口昭彦敷地面積：885.81㎡建築面積：537.32㎡延床面積：1,351.38㎡構造：組積造・S造・RC造・SRC造階数：地下1階 地上4階工期：2014.12～2016.3For this renovation of a commercial facility, the distinctive hybrid structural body that combines brick masonry with reinforced concrete construction was reinforced, and the outer walls and entrance hall were preserved and restored to their state at the time of original construction, resulting in the beautification of the distinctive cityscape of Sapporo. For the interior, an impressive design in which tension is produced by the contrast between new and old technologies (Taisho period masonry construction and modern beam-less thin flat slab construction that contrasts with the atriums in between) was used. The entire structure is enclosed by light vaulted ceilings, creating a single building that houses the Kitakaro restaurant, one of the most prominent venues for the culinary culture of Hokkaido and one that has an open feel, as well as a serene coffee shop that seems to float in midair. Bookshelves have been placed on the wall as a “memory device” reminder that the building was once a library. Rather than static preservation of a historic building, the result is a rebirth of the building as one that will continue to be used in the contemporary age.(Junichi Yokoo)2F PLAN　S=1:6001.カフェテリア Cafeteria2.吹抜 Open ceiling space3.バックスペース Backspace昭和初期の既存建物(旧北海道庁立図書館)札幌市古文書館より提供解体終了時、鉄筋挿入とRC壁により補強を実施N212332