Journals / İTÜ Dergisi Seri D: Mühendislik / 2003 / Cilt: 2 - Sayı: 3

Refrofit of damaged reinforced concrete members by using steel corners and plates

Hasarlı betonarme elemanların çelik köşebent ve lamalar ile güçlendirilmesi

Pages
3–16
Publication Date
2022-11-05
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

At the end of experimental and analytical studies, it is seen that the investigated economical repair and strengthening technique is highly effective on improving the behaviour of reinforced concrete sections, which were damaged previously.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:There are large numbers of damaged buildings that need repair/strengthening in Turkey.
📊
Key Findings & Data:Consequently, experimental and analytical work on the behaviour of damaged reinforced concrete members, which are repaired/strengthened by different techniques, is vitally important.
💡
Conclusion & Impact:At the end of experimental and analytical studies, it is seen that the investigated economical repair and strengthening technique is highly effective on improving the behaviour of reinforced concrete sections, which were damaged previously.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

There are large numbers of damaged buildings that need repair/strengthening in Turkey. Consequently, experimental and analytical work on the behaviour of damaged reinforced concrete members, which are repaired/strengthened by different techniques, is vitally important. In this study, specimens tested before under the combined effects of axial and reversed cyclic flexural loads, are repaired and strengthened by steel corners and plates. The repaired and strengthened specimens are then tested in the same conditions as original specimens and the contribution of the repair and strengthening technique on strength, ductility, stiffness and energy dissipation are investigated. Then analytical moment-curvature relationships are obtained by using fiber element approach and it is seen that the analytical results are in good agreement with the experimental data. In the analytical study, confinement effect for concrete, strain hardening and Bauschinger effects for reinforcing steel can be taken into account. At the end of experimental and analytical studies, it is seen that the investigated economical repair and strengthening technique is highly effective on improving the behaviour of reinforced concrete sections, which were damaged previously.

Özet

Bu çalışmada daha önce sabit eksenel yük ile yön değiştiren tekrarlı eğilme etkileri altında denenmiş betonarme numuneler epoksi enjeksiyonu ve tamir harcı ile onarıldıktan sonra boyuna doğrultuda çelik korniyer ve lamalar ile, enine doğrultuda ise çelik lamalar ile güçlendirilmiştir. Onarılmış ve güçlendirilmiş numuneler aynı yükleme şartlarında tekrar denenmiş, uygulanan onarım ve güçlendirme tekniğinin numune davranışına katkısı dayanım, süneklik, eğilme rijitliği ve enerji yutma kapasitesi açılarından değerlendirilmiştir. Güçlendirilmiş betonarme kesitler için analitik moment-eğrilik ilişkileri elde edilmiş ve bunların deneysel sonuçlar ile uyumlu olduğu görülmüştür. Deneysel ve analitik çalışmaların sonucunda, incelenen bu ekonomik onarım ve güçlendirme tekniğinin hasarlı betonarme kesitlerin performanslarını önemli ölçüde geliştirdiği görülmüştür.

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Cite This Article

İLKİ, A., DEMİR, C., KUMBASAR, N., KARADENİZ, A. (2022). Refrofit of damaged reinforced concrete members by using steel corners and plates. İTÜ Dergisi Seri D: Mühendislik, Cilt: 2 - Sayı: 3, 3–16. https://ajindex.com/articles/652181

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References (8)

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