Farklı Tip Betonarme Binalar İçin Geliştirilmiş Hasar Tahmin Yöntemleri

Gürbüz, Ali; Tekin, Muhammed

doi:10.18400/tekderg.334196

Cited by 8 publications

(3 citation statements)

References 18 publications

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“…As a result, it is observed that the application of carbon fiber reinforced polymer wrapping improves the current performance. Various methods are suggested to predict the actual behavior of a structural system [21][22][23]. Studies show that the performance of carbon fiber reinforced polymer confined concrete and reinforced concrete elements can be predicted through finite element analysis [24].…”

Section: Introductionmentioning

confidence: 99%

Effect of Wrapping Thickness and Type on Reinforced Bridge Piers: A Numerical Study

Gürbüz,

Ustabaş,

Kurt

et al. 2024

Period. Polytech. Civil Eng.

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This research paper investigates the impact of wrapping thickness and type on reinforced bridge piers through a numerical study. The Incesu bridge, located in the Ardanuç district of Artvin province, was selected as the case study, as it was completed with low concrete strength. Initially, the bridge was examined, revealing that the piers were inadequate against dynamic, dead, pedestrian, and covering loads. The study concentrated on employing carbon fiber reinforced polymer to reinforce the bridge piers. Various models were wrapped with carbon fiber reinforced polymer in full-length, half-length, and one-meter intervals. In the analysis, it is assumed that the wraps are linked to each other in both principal directions and not detached from one another. Along with the analyses conducted, stress and strain values are presented separately. It was observed that the wrapping effect obtained in small-sized elements in literature could not be obtained in large-sized elements. As the concrete quality improves, the influence of wrapping thickness diminishes. Moreover, the effects of full-length and half-length wrapping are very close to each other, suggesting that half-length wrapping of bridge piers is sufficient. The authors believe that the obtained analysis results will prove beneficial in achieving economic advantages in retrofitting projects within the construction sector.

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Section: Introductionmentioning

confidence: 99%

Effect of Wrapping Thickness and Type on Reinforced Bridge Piers: A Numerical Study

Gürbüz,

Ustabaş,

Kurt

et al. 2024

Period. Polytech. Civil Eng.

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“…As earthquake disasters have become more frequent in recent years and are responsible for direct and indirect losses, an in-depth understanding of earthquakes is required [1]. Before and after earthquakes, it is essential to maintain the transportation and safety of bridges.…”

Section: Introductionmentioning

confidence: 99%

Retrofitting an Existing Multi-Span Continuous Reinforced Concrete Highway Bridge by Using the Concept of Weakening and Viscous Damping

gurbuz,

Kiral,

Ustabas

2023

Preprint

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It's crucial to keep bridges safe and operational all the time. They may require immediate seismic retrofitting before or after an earthquake. A solution could be using the concepts of weakening and damping, which have not been widely used in bridge applications. The weakening is achieved by isolating piers with Elastomer Bearings (EBs), and viscous dampers are added for the damping part. Since a proper damping coefficient distribution and velocity exponent are required for the concept, the study investigated an optimal velocity exponent and presented a novel iterative-based design approach for viscous damper distributions. The results revealed that Sys1 (EBs + nonlinear viscous damper) and Sys2 (EBs + linear viscous damper) lowered the maximum bending moment of the most affected pier between 77% and 89%, and 82% and 90.5%, respectively when compared to the “pier fixed” system (i.e., the piers are fixed to the deck). For the maximum deck shear force, Sys1 increased the forces between 70% and 155%, whereas Sys2 increased the forces between 17% and 77%. In conclusion, Sys2 outperformed Sys1 by lowering the piers' bending moment and resulting in lower deck shear forces. Deck shear forces could also be decreased to a tolerable level by selecting a bearing with different mechanical properties (such as a lead rubber bearing).

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“…Böylelikle, hızlı değerlendirme sonuçları ile deprem geçirmiş yapıların gerçek davranışı arasındaki tutarlılığı da ortaya koymaya çalışmışlar, inceledikleri binaların %5'ini çok tehlikeli ve %47'sini yüksek öncelikli olarak sınıflandırmışlardır. [12] muhtemel bir depremde oluşabilecek hasar ve kayıp ihtimallerini tahmin etmek için bir metot geliştirmeye çalışmışlar, bu amaçla 11 farklı tipteki betonarme yapının doğrusal olmayan statik itme analizlerini yapmışlardır. Araştırmacılar tarafından, analiz sonuçlarına bağlı olarak her bina grubuna ait 4 farklı hasar ihtimalini gösteren "kırılganlık eğrileri" oluşturulmuştur.…”

Section: Introductionunclassified

Earthquake performance comparison of a reinforced concrete school building based on four different quick evaluation methods

Özkul

GÜLGEÇ

2022

Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Bu çalışmada, daha önceden ayrıntılı deprem performansı araştırılarak belirlenmiş olan bir betonarme çerçeve tipi okul binasının, 4 farklı ve 1 revize hızlı değerlendirme yöntemi kullanılarak deprem performansı incelenmiş, her bir yöntem ile elde edilen sonuçlar karşılaştırılarak metotların görece üstün ya da eksik olduğu yönleri belirlenmiştir.Ayrıca, binanın göreli kat ötelemeleri bilgisayar programı ile hesaplanmış ve P25 Yönteminin revizyonu olan P25 ÖZ-KA metodu ile de deprem performansı araştırılmıştır. Daha önceden yapılmış olan ayrıntılı inceleme ile belirlenen nihai sonuç ve çalışma kapsamında yapılan hızlı değerlendirme metotlarının her birinden elde edilen sonuçlar; binanın deprem performans düzeyinin "yetersiz" olduğu şeklindedir. Yöntemler arasında karşılaştırma yapılırken; uygulama kolaylığı, uygulama süresi, güvenilirlik ve kullanılan parametre sayısı baz alınmıştır. Çalışma ile ülkemizde daha önce defalarca yaşadığımız felaketlerin bir benzerinin yeniden yaşanmaması için deprem olmadan önce binaların performansları hakkında bir fikir elde edilebilecek olan hızlı değerlendirme metotlarının önemi vurgulanmıştır.

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Farklı Tip Betonarme Binalar İçin Geliştirilmiş Hasar Tahmin Yöntemleri

Cited by 8 publications

References 18 publications

Effect of Wrapping Thickness and Type on Reinforced Bridge Piers: A Numerical Study

Effect of Wrapping Thickness and Type on Reinforced Bridge Piers: A Numerical Study

Retrofitting an Existing Multi-Span Continuous Reinforced Concrete Highway Bridge by Using the Concept of Weakening and Viscous Damping

Earthquake performance comparison of a reinforced concrete school building based on four different quick evaluation methods

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