Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.13091/614
Title: Experimental investigation of shear capacity and damage analysis of thinned end prefabricated concrete purlins strengthened by CFRP composite
Authors: Gemi, Lokman
Aksoylu, Ceyhun
Yazman, Şakir
Özkılıç, Yasin Onuralp
Arslan, Musa Hakan
Keywords: Carbon Fiber Reinforced Polymer (Cfrp)
Composite Concrete
Damage Analysis
Prefabricated Structures
Purlins
Strengthening
Velocity Impact Response
Frp-Confined Concrete
Axial Compressive Behavior
Fatigue Failure Behavior
Filament-Wound Pipes
Flexural Behavior
Rc Beams
Finite-Element
Columns
Glass/Epoxy
Issue Date: 2019
Publisher: ELSEVIER SCI LTD
Abstract: Prefabricated structures supported with purlins are exposed to numerous damages due to the excessive snow loadings as vertical loadings. The thinned regions of the purlins are responsible with the failure of the structure since the shear cracks usually initiate at these regions and propagate along with the purlins, and as a result, a total collapse may occur. In this study, carbon fiber reinforced polymer (CFRP) composites with four different configurations (P-2-P-5) were employed for strengthening prefabricated purlins in order to increase the strength of the purlin against shear damage generated under vertical loading. The load carrying capacities and damage patterns of the purlins were compared. The failure of the reference purlin (P-1) was occurred as a shear damage at the thinned regions before reaching its bending capacity. However, the failure characteristic of the CFRP reinforced purlins was dominated by the bending damage and the vertical loading capacity of the purlins were increased up to 59% depends on the CFRP wrapping. Damage analysis of the CFRP composite was also performed. Various damage modes of the structure such as cover separation, air voids, delamination, debonding, fiber bundles breakage, matrix cracks, fiber bundles debonding, fiber breakage and buckling were observed and explained thoroughly.
URI: https://doi.org/10.1016/j.compstruct.2019.111399
https://hdl.handle.net/20.500.13091/614
ISSN: 0263-8223
1879-1085
Appears in Collections:Mühendislik ve Doğa Bilimleri Fakültesi Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections

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