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Writer's pictureAlbert Li

Cellular cavity structure and its application on a long-span form-found shell design

Updated: Apr 13, 2023


Instructors: Philip F. Yuan, Xiang Wang, Xiang Wang

Students: Wei Wu, Zhi (Albert) Li, Jiaxin Nie, Heyan Xu, Xu Han, Jiangde Liu, Zhibin Guo, Wei He, Lixing Zhang, Jingwei Zhou, Yuting Lin, Kangning Ge, Shihan Guan, Xuepeng Shi, Xue Bai, Xiaotian Duan

Sponsor: Digital FUTURE 2017, Tongji University

Abstract

This project shows a design and building application of a novel structure concept which is presented and developed by the author. The form-found pavilion demonstrates the validity of the design methodology and the related technical details of the design and fabrication process in an arbitrary design domain. The large pavilion (7m*6m*2.5m) with only 1mm paperboard also shows the great potentials of the thin sheet materials to be used in shell structure designs. The structural concept is based on the spatial tessellation of shell spaces into groups of cellular cavities. The cellular cavity is mainly composed of two curved membranes and the circumferential ribs. Both global and local membrane actions can be activated by the use of materials as thin as 1mm. Based on the structural analysis of the foregoing pavilion, the structural behavior is discussed in detail with a physical compressive test of the different group of cellular cavities. The assembly process of the pavilion is discussed with a prototype in full scale. As a successful efficient paper-shell structure, this pavilion demonstrates the structural concept and could inspire the potentials of thin materials for future shell designs.


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