Enhancing Structural Resilience: Exploring the Novel Sleeve Method for Steel T-Stub Connections

Öz

A new sleeve device has been introduced with the aim of enhancing the performance of steel structures under extreme loading conditions. Previous research has primarily focused on numerical simulations of this sleeve's application, emphasizing the need for further investigation to validate its effectiveness. This research paper presents a numerical analysis that explores how the sleeve device influences the deformation capacity and strength of a bolt up to the point of failure. The study involved the use of a T-stub connection with multiple sleeves, each featuring different geometric parameters. To assess the impact on strength and deformation capacity, a comparison was drawn between these findings and the behavior of a T-stub bolted connection without using the sleeve. In addition, Finite Element (FE) models were employed for additional parametric studies. The test outcomes demonstrated a substantial increase in the deformability of the bolted connection when utilizing the sleeve device, all the while preserving the strength and initial stiffness of the bolts. This proposed sleeve method in the study significantly enhances the connection's capacity by delaying bolt failure.

Anahtar Kelimeler

• Steel structures
• T-stub connection
• Steel sleeve
• Bolted connection
• Ductility.

Yapısal Dayanıklılığın Artırılması: Çelik T-Bağlantılar İçin Yeni Çelik Manşon Yöntemi

Öz

Yeni bir çelik manşon methodu, çelik yapıların aşırı yükleme koşullarında performansını artırmayı amaçlayan bir yöntem olarak tanıtılmıştır. Daha önceki araştırmalar genellikle bu manşon sisteminin uygulanmasıyla ilgili sonlu elemanlar yöntemi odaklı simulasyonlar ile çalışılmış ve etkililiğini doğrulamak için daha fazla araştırmanın gerekliliği vurgulanmıştır. Bu araştırma makalesi, yeni tanıtılan çelik manşon kullanım metodu ile bir civata üzerinde deformasyon kapasitesi ve dayanıklılığın nasıl etkilendiğini amaçlayan nümerik bir analiz sunmaktadır. Çalışma, farklı geometrik parametrelere sahip çelik manşon kullanılan bir T-profil bağlantısının kullanımını içermektedir. Dayanıklılık ve deformasyon kapasitesi üzerindeki etkiyi değerlendirmek için bu bulgular ile çelik manşon kullanılmadan T-profil bir bağlantının davranışı arasında bir karşılaştırma yapılmıştır. Ayrıca, ilave parametrik çalışmalar için Sonlu Eleman modelleri kullanılmıştır. Araştırma sonuçları, çelik manşon kullanımı ile cıvatalı bağlantının deformasyon kapasitesinde belirgin artış gözlemlenmiş ve aynı zamanda civataların kendi dayanıklılığını ve başlangıç sertliğini korudukları görülmüştür. Bu çalışmada önerilen çelik manşon yöntemi, civatalı bağlantıların dayanıklılığını civata hasarını geciktirerek önemli ölçüde artırmaktadır.

Anahtar Kelimeler

• Çelik yapılar
• T-profil bağlantısı
• Çelik manşon
• Civatalı bağlantı
• Süneklik

Kaynakça

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