Lightweight curved surface structures composed of bending-active plate units

Yi Hsuan Tu, Ting Yun Kou, Chia Chia Li

研究成果: Conference contribution

摘要

This paper presents a method for fabricating reversible curved surface plate units through active bending. The original flat plates were bent and self-stabilized by inserting braces into precut parallel slits in the plates. The units can be easily assembled into a modular structure and disassembled to be transported or stored in their flat form. The curvature of the units can be controlled by adjusting the length and the spacing of the slits. The deformation of the bent units were simulated using a geometrically nonlinear analysis in SAP2000 and compared with measured results from both small-scale and full-size models. It was found that the bending deformation was proportional to the ratio of the slit spacing to the plate width as well as the ratio of the brace depth to the slit length. An empirical function between the bent angle and the slit dimension factors for symmetric rectangular units was derived. Two lightweight structures, including a catenary arch that spanned 4.2 m and a geodesic dome with a diameter of 3.45 m, were built using 3 mm plywood units. 1/5-scale models were used to study the stability of the structures. The initial attempt to construct the catenary arch was unsuccessful due to the scale effect. The design was modified by adding out-of-plane stiffeners. It was found that the scale effect may be reduced by changing the geometry of the structure. A geodesic dome was then developed with reciprocally connected units. It was assembled multiple times at different sites.

原文English
主出版物標題IASS Symposium 2019 - 60th Anniversary Symposium of the International Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th International Conference on Textile Composites and Inflatable Structures, FORM and FORCE
編輯Carlos Lazaro, Kai-Uwe Bletzinger, Eugenio Onate
發行者International Center for Numerical Methods in Engineering
頁面1902-1909
頁數8
ISBN(電子)9788412110104
出版狀態Published - 2019
事件IASS Symposium 2019 - 60th Anniversary Symposium of the International Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th International Conference on Textile Composites and Inflatable Structures, FORM and FORCE - Barcelona, Spain
持續時間: 2019 10月 72019 10月 10

出版系列

名字IASS Symposium 2019 - 60th Anniversary Symposium of the International Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th International Conference on Textile Composites and Inflatable Structures, FORM and FORCE

Conference

ConferenceIASS Symposium 2019 - 60th Anniversary Symposium of the International Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th International Conference on Textile Composites and Inflatable Structures, FORM and FORCE
國家/地區Spain
城市Barcelona
期間19-10-0719-10-10

All Science Journal Classification (ASJC) codes

  • 藝術與人文(雜項)
  • 土木與結構工程
  • 機械工業
  • 建築與營造

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