The Mushroom by The University of Hong Kong

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Appreciations towards The University of Hong Kong for providing the following description:

“蘑菇”是香港大学建筑硕士课程”压力之下”课题的最新研究成果——一座以空气为媒介构筑的伞状混凝土建筑原型。该项目通过创新模板设计拓展混凝土建造的可能性，其主体结构采用轻质充气模板与混凝土浇筑结合的工艺体系，成功实现了多重建筑辩证关系的融合：既呈现混凝土的厚重质感又保持结构轻盈，既展现主动张力又承载巨大压力，在传统工艺与创新技术之间构建出独特的对话关系。

▼项目视频，video

The Mushroom is a recently completed umbrella prototype exploring different means of building with concrete through formwork design, predominantly made of lightweight inflatables. Building with air is the focus of the design-research taught in a Master of Architecture program at the University of Hong Kong, further exploring the productive dichotomy between light and heavy, subtractive and additive methods, void and solid space, active tension and pressure, tradition and innovation in constructed architecture.

▼项目概览，Overall view © 香港大学

▼近景，Close view © 香港大学

作为”压力之下”课题的核心技术突破，该原型开发出经济可持续的混凝土浇筑新工法：利用充气压力容器抵御液态混凝土的流体静压。

The design studio, titled ‘Under Pressure’, focuses on prototyping economical and sustainable building techniques for concrete casting that are largely made of pressurized air vessels to ultimately resist the hefty liquid pressure of concrete during the casting process.

▼室外搭建，Outdoor construction © 香港大学

▼混凝土形态，Concrete form © 香港大学

▼运输，Transportation © 香港大学

建筑模板由多组异形充气气囊构成，通过精准控制气囊的负空间造型，使浇筑成型的混凝土表面呈现出巴洛克建筑”剖碎空间”般的流动肌理。这种创新工艺重新诠释了建筑实体与过渡空间的关系，将动态力量可视化于凝固的混凝土形态之中。

The formwork itself consists mainly of a constellation of differently sized balloons in-between and above which the concrete material is poured, in the leftover gaps formed between the inflatables. The emerging concrete effect generated by the negative space of the formwork and the curvature of the inflated balls reinstates a desire for a fluid and varied mass quality in architecture, largely rooted in the Baroque movement via the notion of poche space; the interstitial solid mass between rooms. This novel built prototype, serving both as test and proof of concept, was an essential step for a more ambitious architecture project soon to be realized. The prototype would have been impossible without the direct engagement and proactive collaboration with our industry partners; inflatable and precast factories.

▼多组异形充气气囊，A constellation of differently sized balloons © 香港大学

▼充气气囊，The alloons © 香港大学

▼精准控制空间造型，Precise control of space shape © 香港大学

该项目构建了产学研协同创新的典范，通过与粤港澳大湾区两家专业制造商（充气结构工程公司与预制构件工厂）的深度协作，充分整合了工业化生产设施的技术优势。研发过程突破了传统建造技术的边界，在压力与重力的动态平衡中开辟出建筑原型实验的新维度，既验证了设计概念的技术可行性，也为后续规模化应用奠定了坚实基础。

Working closely with these large-scale industrial facilities and plants of sheer mass-production, both located in the Greater Bay Area in China, offers unique resources and still much untapped potential for future innovation in construction.

▼浇筑成型的混凝土形态，Cast concrete form © 香港大学

▼与专业制造商的密切合作，Close cooperation with professional manufacturers © 香港大学

作为建筑教育与实践的跨界实验，该原型系统架设起多元建造技术的沟通桥梁。其创新价值不仅在于开发出新型模板体系，更在于构建了联动设计研究、材料实验与产业转化的完整闭环，为建筑领域的可持续创新提供了可复制的技术路径与思维范式。

Indeed, this R&D project joins together specialized yet disparate industries, opening up new avenues in design-build research and prototyping with dynamic forces like pressure and gravity, while creating a productive conduit between various construction expertise, architecture education and beyond.

▼团队与项目合影，final prototype outside factory with students © 香港大学

项目名称：蘑菇：从空气负形到混凝土实体
项目地点：中国东莞
项目竣工时间：2025年3月
项目团队：香港大学深造建筑设计学理科硕士 第二期（2024-25届）
项目负责人：
Olivier Ottevaere 香港大学副教授
余佳浩 香港大学讲师
学生：
曹梦洋, 陈家俊, 陈韵同, 邓芳欣, 冯子帆, 金成, 李磊, 黎峻滔, 刘恺怡, 李诗慧, 彭加敏, 施建文,
王樱蓓, 徐荣耀, 徐智慧, 赵娇嫣, 张景博, 张俊萍, 朱烨安
技术合作方：
东莞市润阳联合智造有限公司
广州韶雄游乐设备有限公司
结构工程师：高丽

Project title: The Mushroom: When Air Sculpts Solid
Project location: Dongguan, China
Project completion: March, 2025
Credits:
Master of Advanced Architectural Design, Cohort 2 (2024-25)
The University of Hong Kong
Project leaders:
Olivier Ottevaere, Associate professor (practice)
Kaiho Yu, Lecturer
Students:
Cao Mengyang, Chan Ka Chun, Chan Wan Tung, Deng Fangxin, Feng Zifan, Jin Cheng, Li Lei, Li Juntao, Liu Kaiyi, Li Shihui, Peng Jiamin, Shi Jianwen, Wang Yingbei, Xu Rongyao, Xu Zhihui, Zhao Jiaoyan, Zhang Jingbo, Zhang Junping, Zhu Yean
Industry partners:
Shenzhen Capol Dongguan Concrete Factory
Guangzhou Shaoxiong Inflatable Factory
Structural engineer: Gao Li

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