Participating Formwork with CFRP Textile for Shape-Optimised Concrete Beams: Opportunities and Challenges

Amila Jayasinghe, Emmanuel Momoh, Mohammad Hajsadeghi, John Orr, Raffaele Vinai, Prakash Kripakaran, Ken Evans

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Carbon emissions from concrete structural elements can be reduced by improving the material efficiency with shape optimisation. However, fabricating and reinforcing shape-optimised concrete beams is challenging due to the need for complex and curved geometries. This study conceptualises the use of dual-purpose stay-in-place participating formwork with CFRP textile for shape-optimised beams where the system acts as (a) the formwork for the optimised geometry, and (b) flexural and shear reinforcement. The development, preliminary analysis, and experimental results of a prototype beam with CFRP textile are presented in this paper. Participating formwork with CFRP textile offers an opportunity to reduce concrete consumption as a comparably easier construction method of shape-optimised beams but challenges persist in potential premature brittle failure modes.

Original languageEnglish
Title of host publicationProceedings of the 3rd fib Italy YMG Symposium on Concrete and Concrete Structures
EditorsMarta del Zoppo, Diego A. Talledo, Simona Bianchi, Paolo Castaldo, Isabella G. Colombo, Diego Gino, Giuseppe Ferrara, Simone Labò, Simone Spagnuolo
Publisherfib. The International Federation for Structural Concrete
Pages505-512
Number of pages8
ISBN (Print)9782940643226
Publication statusPublished - 2023
Externally publishedYes
Event3rd fib Italy YMG Symposium on Concrete and Concrete Structures, 2023 - Torino, Italy
Duration: 16 Nov 202317 Nov 2023

Publication series

Namefib Symposium
ISSN (Print)2617-4820

Conference

Conference3rd fib Italy YMG Symposium on Concrete and Concrete Structures, 2023
Country/TerritoryItaly
CityTorino
Period16/11/2317/11/23

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