study on deployable structure using tensioned membrane and bamboo for emergency temporary shelter

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K21285
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Building structures/Materials; Design science
• Research Institution: The University of Shiga Prefecture
• Principal Investigator: Nagai Takuo 滋賀県立大学, 環境科学部, 助教 (60434297)
• Co-Investigator(Renkei-kenkyūsha): Inagaki Junya 早稲田大学, 芸術学校, 特任准教授 ; Sano Satoshi 一級建築士事務所Eureka, 主宰 ; Hori Eisuke 近畿大学, 講師
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 展開構造 / 竹 / 膜 / 人力施工 / 復元力特性 / 仮設建築

Outline of Final Research Achievements

We proposed a method to join round bamboos by using rope and cloth tape and used the joint unit test results to perform modeling of the restoring force properties. In addition, we conducted a full-scale truss test and numerical analysis to confirm the validity of the model within elasticity limit. Regarding the load level above the elasticity limit, we plan to improve and implement the test body.

We also proposed a model of temporary dome with deployable system like circular sector, and confirmed the feasibility of the system by conducting the loading test of miniature model. It was confirmed that a stable structure can be obtained by the pre-tension even when each frame is hinged arch. In such case, since the dome strength sharply decreases due to partial buckling, it is considered necessary to devise measures such as making the joint part semi-rigid.

Free Research Field

建築構造・材料