这所幼儿园位于东京葛饰区的一个密集的城市街区。一所破旧的公立幼儿园正在重建并移交给私人所有，并举行了一个选择建筑师的竞赛。我们与一家申请接管管理的公司合作，提交了一份提案。比赛要求设计要考虑到学校的历史和环境，以及当代社会的复杂需求。

This nursery school is located in a dense urban neighborhood in Tokyo’s Katsushika ward. A run-down public nursery school was being rebuilt and transferred to private ownership, and a competition was held to select an architect. We submitted a proposal in collaboration with a company applying to take over management. The competition required that the design takes into consideration the school’s history and environment as well as the complex needs of contemporary society.

我们的获胜方案在满足这些要求的同时，还包含了四个重叠的功能，确保该设施在未来的许多年里继续受到社区的喜爱和使用：它是一个 “房子”，孩子们可以在他们的导师和家人知道的安全环境中自由玩耍；一个 “公园”，所有学生可以在这里活动身体和发展思维；一个 “学校”，他们可以在这里学习欣赏生命和食物的价值；以及一个 “堡垒”，在附近埇桥河的洪水和其他灾害中保护社区。

Our winning proposal met these requirements while also containing four overlapping functions that ensure the facility will continue to be loved and used by the community for many years to come: it is a “house” where children can play freely in a setting their instructors and families know is safe; a “park” where all students can move their bodies and develop their minds; a “school” where they can learn to appreciate the value of life and food; and a “fort” to protect the community during the flooding of the nearby raised-bed river and other disasters.

钢筋混凝土结构由平坦的混凝土板和能承受水压的径向墙柱组成。这座十米高的建筑有三层，大部分教室在二楼，高出地面3.7米，以抵御洪水。为了确保隐私和缓冲密集住宅区的噪音，同时也为了便于维护，建筑的外部有三面是封闭的，环绕着一个院子。C型建筑的第四面向邻近的公园开放。建筑立面被分为几个部分，与周围建筑的规模相匹配。在北侧，一楼背离了建筑前的狭窄道路，拓宽了街道，从而避免了自行车和汽车在早晚上下车高峰时发生拥堵和事故的风险。

The reinforced concrete structure is comprised of flat concrete slabs and radial wall pillars that can withstand water pressure. The ten-meter-high building has three floors, with most of the classrooms on the second floor, 3.7 meters above ground level, to withstand flooding. To ensure privacy and buffer noise in the dense residential neighborhood, as well as for ease of maintenance, the exterior of the building is closed off on three sides and surrounds a courtyard. The fourth side of the C-shaped building opens toward an adjacent park. The façade is divided into sections that match the scale of the surrounding buildings. On the north side, the first floor is set back from the narrow road that runs in front of the building, widening the street and thereby avoiding the risk of congestion and accidents during the morning and evening rush of bicycles and cars stopped for drop-off and pickup.

设计中加入了多条循环路线，包括一些循环穿过整个建筑的路线，使儿童在平时玩耍时也能参与其中，还有一些供紧急使用的路线是垂直移动的，人们在火灾中下楼，在洪水灾害中上楼，以确保安全疏散。特别是，一直延伸到屋顶的螺旋形坡道和宽大的楼梯为应急存储空间和根据年龄调整的天花板高度创造了空间，而在二楼，分层座位在紧急情况下可以容纳200至300人，包括学校的165名学生以及等待救援的工作人员和社区成员。

The design incorporates multiple circulation routes, including some that loop through the entire building to keep children engaged during ordinary playtime, and others for emergency use that move vertically, with people going down in fires and up in flood disasters to ensure safe evacuation. In particular, the spiraling ramp that extends all the way to the roof and the wide staircase create room for emergency storage space and ceiling heights adjusted according to age, while on the second floor, tiered seating can accommodate 200 to 300 people during emergencies, including the school’s 165 students as well as staff and community members waiting for help to arrive.

设计一座既能防灾又能玩乐的建筑，既能通过邻近的公园向社区开放，又能尊重社区和街景，但又不能让用户时刻意识到它在扮演这些不同的角色，感觉有点像在解决一个具有巨大变量的多变量方程。此外，我们力求在设计的形式和色彩上达到平衡，确保建筑能够对灾害和长期的社会变化作出反应的灵活性，以及适合于幼儿园的外观而又不至于过于幼稚–也就是说，这是一个结合了质量和力量的设施。

Designing a building that is disaster-proof but also a fun place to play, open to the community via the adjacent park but also respectful of the neighborhood and streetscapes, and yet which does not make its users constantly aware it is performing these diverse roles felt a bit like solving a multivariate equation with enormous variables. In addition, we strived to achieve balance in the forms and colors of the design, flexibility to ensure the building can respond to disasters as well as long-term societal changes, and an appearance that is appropriate for a nursery school without being overly childish—that is, a facility that combines quality and strength.

Architects: Aisaka Architects’ Atelier
Area: 779 m²
Year: 2021
Photographs: Shigeo Ogawa
Structure: Kanebako Structural Engineers
Light Design: Komorebi Design
Architects:Aisaka Architects’ Atelier
Equipment:ZO Consulting Engineers
Sign Design:Morld
City:Katsushika City
Country:Japan