ÇEVRİMSEL YÜKLER ALTINDA CFRP İLE GÜÇLENDİRİLMİŞ ÇELİK LEVHALI PERDELERDE ÇELİK LEVHA İLE CFRP ARASINDAKİ BİRLEŞİMİN AYRILMASININ DENEYSEL İNCELENMESİ

Yıl 2023, Cilt: 14 Sayı: 4, 731 - 742, 31.12.2023

Said Dusak Cem Yalçın

https://doi.org/10.24012/dumf.1358193

Öz

Yenilikçi bir yanal yük dayanım sistemi olan çelik levhalı perde sistemleri dünyada yaygın olarak kullanılmaktadır. Bu çalışmada çelik levhalı perdelerin yük taşıma kapasitesini, sünekliğini ve enerji tüketimini arttırmak amacıyla karbon fiber takviyeli polimer tekstil (CFRP) kullanılmıştır. Çelik bir çerçeve içindeki iki çelik levha arasına epoksi ile birleştirme yoluyla kompozit panelli perdenin bir örneği hazırlandı ve tekrarlı yükleme uygulandı. CFRP tekstil içermeyen çelik levha perde duvarın sonlu eleman modeli hazırlanmış ve düzlem içi statik itme analizi yapılmıştır. Modelin analizi sonucu elde edilen yük-deplasman eğrileri, deneysel olarak elde edilen CFRP tekstil ile güçlendirilmiş numunenin sonuçlarıyla karşılaştırıldığında iyi bir uyum içinde olduğu görülmüştür. Sonuç olarak, çelik levhalı perdeye CFRP tekstil ilavesi sonucunda karbon fiber takviyeli polimerin levha yüzeyinden ayrıldığı ve sistem davranışına katkısının sınırlı kaldığı görülmüştür. Buna göre beklenen katkının elde edilebilmesi için çelik levha ile tekstilin tam bir bütünlük içinde olması ve kompozit malzeme görevi görmesinin sağlanması gerektiği anlaşılmıştır.

Anahtar Kelimeler

Composite panel shear wall, CFRP, Energy dissipation, Çelik levhalı perde, Kompozit panelli perde, Karbon lifli tekstil, Enerji sönümleme

Proje Numarası

Sakarya University 2007-50-02-022

EXPERIMENTAL INVESTIGATION OF CFRP-REINFORCED STEEL PLATE SHEAR WALLS UNDER CYCLIC LOADINGS AND THE FAILURE OF CONNECTIONS BETWEEN CFRP TO STEEL

Öz

Steel plate shear walls, as an innovative lateral load resisting system, are widely used in the world. In this study, carbon fiber-reinforced polymer textile (CFRP) is used in order to increase load carrying capacity, ductility and energy dissipation of steel plate shear walls. A specimen of composite plate shear wall through epoxy bonding between two steel plates in a steel frame was prepared, and cyclic loading was applied. The finite element model of the steel plate shear wall without CFRP textile was prepared, and an in-plane static pushover analysis was conducted. The load-displacement curves obtained from the analysis of the model were compared with the results of the experimentally-obtained CFRP textile added specimen, and they were found to be in a good agreement. In conclusion, as a result of the addition of CFRP textile to the steel plate shear wall, it was observed that the carbon fiber reinforced polymer delaminated from the plate surface, and its contribution to the system behavior remained limited. Accordingly, it has been observed that in order to obtain the expected contribution, it is necessary to ensure that the steel plate and the textile must have full bonding and act as a composite material.

Anahtar Kelimeler

Steel plate shear wall, Composite panel shear wall, CFRP, Energy dissipation

Etik Beyan

This article was prepared with the financial support of Sakarya University Scientific Research Project Unit.

Destekleyen Kurum

Sakarya University

Proje Numarası

Sakarya University 2007-50-02-022

Teşekkür

Authors would like to thank to Sakarya University Scientific Research Projects Unit for its financial support with the Project Number 2007-50-02-022.

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