Behavior of CLT Formwork Beams Retrofitting with CFRP Strip under Static Loading
Abdullah Türer1*, Taki Ünal Dönmez2, Abdülkadir Çevik3, Özgür Anıl4
1Gaziantep University, Gaziantep, Turkey
2Gazi University, Ankara, Turkey
3Gaziantep University, Gaziantep, Turkey
4Gazi University, Ankara, Turkey
* Corresponding author: aturer@ybu.edu.tr
Presented at the 2nd International Symposium on Innovative Approaches in Scientific Studies (ISAS2018-Winter), Samsun, Turkey, Nov 30, 2018
SETSCI Conference Proceedings, 2018, 3, Page (s): 277-281 , https://doi.org/
Published Date: 31 December 2018 |
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Abstract
Timber structures are used as building elements in ancient times due to the lightness and durability. Formwork
material of reinforced concrete structures are also made of wood. Although timber is widely used in industry, it has been
limited research in literature. Timber formwork beams can be deformed quickly because they are used repeatedly. In this study,
an experimental investigation on damaged timber formwork beams retrofitting with carbon fiber reinforced polymer (CFRP)
strips and CFRP fan type anchors is performed. The experiment carried out with 2 timber formwork beam without damage and
2 timber formwork beams with damage up to 85 percent of ultimate capacity. The damaged timber beams were tested to
evaluate the effectiveness of CFRP materials for flexural retrofitting. The experimental results show that the application of
CFRP strip is effective for retrofitting damaged beams. As a result, it was observed that the ultimate load carrying capacity of
85% damaged beams was almost completely restored to its original performance level.
Keywords - Timber Formwork Beams, CFRP, Retrofitting, Static Loading, Flexural Strength
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