Abstract
This paper presents an iterative method for the design of structurally optimised, simply supported, flexibly formed, concrete beams. The design and construction method using flexible formwork has been shown to facilitate material savings of up to 40%, providing significant opportunities for low-carbon concrete design.
The proposed method considers both ultimate and serviceability limit states for the optimised beam. The iterative nature of the design process, and its interdependency with the construction method, is demonstrated. Further considerations such as reinforcement detailing, methods to support the flexible mould, and alternative support conditions, are also discussed.
It is seen that replacing conventional orthogonal moulds with a flexible system comprised primarily of high strength, low cost fabric sheets, utilises concrete to create extraordinary possibilities for highly optimised, low carbon, architecturally interesting, building forms.
The proposed method considers both ultimate and serviceability limit states for the optimised beam. The iterative nature of the design process, and its interdependency with the construction method, is demonstrated. Further considerations such as reinforcement detailing, methods to support the flexible mould, and alternative support conditions, are also discussed.
It is seen that replacing conventional orthogonal moulds with a flexible system comprised primarily of high strength, low cost fabric sheets, utilises concrete to create extraordinary possibilities for highly optimised, low carbon, architecturally interesting, building forms.
| Original language | English |
|---|---|
| Pages (from-to) | 654-666 |
| Number of pages | 13 |
| Journal | Proceedings of the Institution of Civil Engineers-Structures and Buildings |
| Volume | 167 |
| Issue number | 11 |
| Early online date | 16 Jun 2014 |
| DOIs | |
| Publication status | Published - 1 Nov 2014 |
Keywords
- Concrete structures
- Design methods & aids
- Sustainability
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Profiles
-
Mark Evernden
- Department of Architecture & Civil Engineering - Senior Lecturer
- BRE Centre in Innovative Construction Materials (BRE CICM)
Person: Research & Teaching
-
Tim Ibell
- Department of Architecture & Civil Engineering - Associate Dean (Learning & Teaching)
Person: Research & Teaching