日本大阪　卡地亞合作策劃——女性展館

Yuko Nagayama and Associates

由永山祐子建築設計公司與卡地亞聯手打造的 2025 萬博「女性展館」，以「女性賦權」為核心主題，此展館包含兩大看點：

一、延續 2020 杜拜世博「女性展館」的名稱與精神，彰顯女性對社會的貢獻，並象徵卡地亞與日本 2025 年國際博覽會協會、內閣府及經濟產業省的全新合作。

Women’s Pavilion in collaboration with Cartier is a pavilion themed around the promotion of women's empowerment. The project incorporates two key elements that carry forward the themes of Expo 2020 Dubai into Expo 2025 Osaka, Kansai.The first element is the continuation of the Women’s Pavilion concept itself, which was launched at Expo 2020 Dubai, and made to highlight women’s contributions to society. While maintaining the name and spirit of the original Women’s Pavilion, this new iteration is a joint initiative between Cartier, the Japan Association for the 2025 World Exposition, the Cabinet Office, and the Ministry of Economy, Trade and Industry.

二、展館外墻重新利用杜拜世博由永山祐子建築設計公司設計的日本館外牆。這遷移過程相當繁瑣，但有賴於多方的協調與合作，並在卡地亞的致力支持下，「KUMIKO 格子外牆」最終得以在大阪這片土地上繼續發光，成就大阪關西世博「女性展館」建築，也開創世博會歷史上首度再利用先前展館結構素材的先例。

The second element is the repurposing of the façade from the Japan Pavilion at Expo 2020 Dubai, originally designed by Yuko Nagayama. This marks potentially one of the first instances in Expo history where components from one pavilion have been reused in a subsequent Expo. This repurposing was not initially included in the Expo budget, and transferring materials from government to private hands involved significant logistical and regulatory challenges. The process began with identifying partners for disassembly, transport, and storage. Obayashi Corporation successfully acquired the government-owned materials through auction and carefully dismantled them. Transport and storage from Dubai to Osaka were managed by Sankyu Inc. Cartier then endorsed the concept of reusing these components for the Women’s Pavilion at Expo 2025 Osaka, Kansai.

杜拜世博日本館坐落於一塊梯形轉角基地，建築以日本傳統建築常見的「大和比」比例為基準，採等腰三角形形式構建而成，並以「KUMIKO 格子外墻」作為室內與外部環境之間的中介。相較之下，全新亮相的日本「女性展館」則位於一處面積約 110 × 18 公尺的狹長基地，其比例呼應傳統京都町家的空間格局。建築面向會場的中央環狀主道，前後地勢存在約 2 公尺的高差。

The site of the Japan Pavilion at Expo 2020 was a trapezoidal corner lot. The building featured an isosceles triangular form based on the silver ratio, with a KUMIKO façade acting as an intermediate buffer zone. In contrast, the site for the new Women’s Pavilion is a narrow 110m by 18m lot, resembling the proportions of a traditional Kyoto townhouse, facing the Grand Ring with a 2-meter elevation difference from front to back.

在「KUMIKO 格子外墻」環繞下的展館，由前方入口延伸至中央的步道，串聯著庭院景觀，側邊設置了走廊式花園，園中栽植自大阪群山移植而來的小樹。此牆以立體幾何格架結構，在光影中編織出斑駁日影，隨風流動之間，交織成一場現代建築語彙與自然意象間的深刻對話。

Courtyards were placed at the front and center, with a side corridor garden. The repurposed "KUMIKO Façade" from the Dubai Expo gently encloses the space, creating a buffer of light and shadow. The garden features trees collected from the mountains around Osaka, over which the KUMIKO lattice casts patterned sunlight, mimicking the protective role of a forest canopy.

「KUMIKO 格子外牆」更採用球形接點技術，這是一項自 1970 大阪世博以來便已廣泛應用的可重複利用結構技術。然而，將既有構件進行重構卻遠比預期中來得更加困難。株式会社大林組和 Arup 工程顧問公司分別運用了客製化軟體，將各個構件進行重新設計與調整，呈現出超越傳統永續敘事的新建築形態。這些特殊軟體及構件已被指定將再次用於未來的新計畫，相關規劃正持續進行中。

The KUMIKO Façade uses a ball-joint system which is a structural technique established since Expo 1970 in Osaka and known for its reusability. However, reassembling the structure proved more complex than initially expected. After the Dubai Expo ended, the components were carefully dismantled and packed, requiring one and a half 40-foot containers for storage, then transported to a warehouse in Osaka. The components included approximately 6,000 tubes and 2,000 nodes. Obayashi used its visual project management system "ProMIE™" to map which parts would be used where. The parts were then repurposed and adapted to fit the entirely different site layout of the Osaka pavilion.

Engineering firm Arup developed custom software to reconstruct the pavilion using only existing components, adhering to the goal of not adding new parts. Through structural analysis and precise relocation, the building was reassembled over a period of three months. Despite the challenges, the process led to the creation of a new architectural expression that evolved beyond the initial narrative of sustainability. The components of this structure are already designated to be reused in a subsequent project, with the design for that next phase currently in progress.

自 2018 年參與日本館設計競圖以來，永山祐子便希望能實現材料再利用的想法，並打造一個促進交流與對話的空間。如今展館二樓設置了名為「WA Space」的對話區，其設計靈感源自於杜拜世博女性主題館的傳統「Majlis」空間。此設計也與永山祐子當初的原始構想不謀而合，延續了她跨越兩屆世博的永續理念。

Since the design competition for the Japan Pavilion in 2018, Nagayama wanted to reuse materials and create a space for discussion. The second floor of the current pavilion includes a “WA Space,” a dialogue area inspired by the majlis of the Women’s Pavilion at Expo 2020. This space coincidentally aligns with an idea included in Nagayama’s original proposal for the Japan Pavilion, thereby fulfilling a vision carried through two consecutive Expos.