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Steel and Composite Structures Volume 50, Number 6, March 25 2024 , pages 689-703 DOI: https://doi.org/10.12989/scs.2024.50.6.689 |
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Investigation of damaged formwork timber beam retrofitting with anchoraged CFRP strip under different loading |
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Abdullah TURER, Ozgur ANIL, Abdulkadir CEViK and R. Tugrul Erdem
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| Abstract | ||
| Construction of high-rise structures, formwork systems that can be installed quickly, resistant to external loads, can be used more than once, have become a necessity. Timber and composite timber materials are preferred in the formation of such formwork systems due to their durability, ease of assembly, light weight and easy to use more than one time. Formwork beams are the most commonly used structural component in the formation of such formwork systems, and these beams can be damaged for different reasons during their lifetime. In this study, H20 top P type timber formwork beams with 1800 and 2450 mm length which is among the products of DOKA(c) company is damaged under the effect of static loading up to a high load level of 85% of the maximum ultimate capacity and after being retrofitted using anchored CFRP strips, performance and behavior of the beams under the influence of various loading types such as static, fatigue and impact are investigated experimentally. Two different lengths of retrofitted timber formwork beams were tested by applying monotonic static, fatigue and impact loading and comments were made about the effects of the retrofit method on performance under different loading types. | ||
| Key Words | ||
| carbon fibers; fatigue; Finite element analysis (FEA); impact load; wood fibers | ||
| Address | ||
| Abdullah TURER:Civil Eng. Dept., Ankara Yildirim Beyazit University, Ankara, Turkiye Ozgur ANIL:Civil Eng. Dept., Gazi University, Ankara, Turkiye Abdulkadir CEViK:Civil Eng. Dept., Gaziantep University, Gaziantep, Turkiye R. Tugrul Erdem:Civil Eng. Dept., Manisa Celal Bayar University, Manisa, Turkiye | ||