T En-kesitli Betonarme Kirişlerin Şekil Değiştirme Esaslı Hasar Sınırlarının Araştırılması
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Date
2021
Authors
Yüksel, S. Bahadır
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Abstract
Yapısal elemanların deprem performansının belirlenmesi için, Türkiye Bina Deprem Yönetmeliği 2018’de (TBDY, 2018) T en-kesitli betonarme kirişler için öngörülen şekil değiştirme esaslı hasar sınırları analitik olarak incelenmiştir. Betonarme T en-kesitli kiriş modelleri için moment-eğrilik ilişkilerinden elde edilen veriler kullanılarak kırılma durumları ve elastik ötesi davranışları incelenmiştir. TBDY, (2018)’de verilen hasar sınır değerleri betonarme T en-kesitli kiriş modelleri için hesaplanmıştır. Şekil değiştirme değerleri TBDY (2018)’de tanımlanmış olan Göçmenin Önlenmesi (GÖ), Kontrollü Hasar (KH) ve Sınırlı Hasar (SH) performans seviyeleri için araştırılmıştır. GÖ ve KH performans düzeyleri için plastik dönmelerin hasar sınırları; akma eğriliği, kopma eğriliği, plastik mafsal uzunluğu, kesme açıklığı ve boyuna donatı çapının fonksiyonudur. Basınç donatısı oranın artırılmasının; T en kesitli betonarme kirişlerin akma momentine (????), kırılma momentine(????), kırılma eğriliğine (????) ve plastik dönme sınırları (????(????)ve????(??Ö))üzerine pozitif etkisinin olduğunu ispatlanmıştır.
Deformation based damage limits for T cross-section reinforced concrete beams, which were mandated in Turkish Building Earthquake Code, 2018 (TBDY, 2018) were analytically investigated to be able to determine the earthquake performance of structural members. The failure stages and nonlinear behavior of T cross-section beams were investigated by using the data obtained from moment-curvature relations. Damage limit values given in TBDY, (2018) were calculated for the designed concrete T cross-section beam models. The deformation limits were calculated for the levels of collapse prevention (GÖ), controlled damage (KH) and limited damage (SH) performance levels as defined in TBDY, (2018). Three different damage limits and the correspondence strain limits were investigated for the T cross-section beams. Damage limits of plastic rotations for GÖ and KH performance levels are functions of yield curvature, ultimate curvature, plastic hinge length, shear length and the diameter of the longitudinal reinforcement. Increasing the compression reinforcement ratios has positive effect on the yield moment (????), maximum moment (????), maximum curvature (????) and limit values of plastic rotations (????(????) and ????(??Ö)).
Deformation based damage limits for T cross-section reinforced concrete beams, which were mandated in Turkish Building Earthquake Code, 2018 (TBDY, 2018) were analytically investigated to be able to determine the earthquake performance of structural members. The failure stages and nonlinear behavior of T cross-section beams were investigated by using the data obtained from moment-curvature relations. Damage limit values given in TBDY, (2018) were calculated for the designed concrete T cross-section beam models. The deformation limits were calculated for the levels of collapse prevention (GÖ), controlled damage (KH) and limited damage (SH) performance levels as defined in TBDY, (2018). Three different damage limits and the correspondence strain limits were investigated for the T cross-section beams. Damage limits of plastic rotations for GÖ and KH performance levels are functions of yield curvature, ultimate curvature, plastic hinge length, shear length and the diameter of the longitudinal reinforcement. Increasing the compression reinforcement ratios has positive effect on the yield moment (????), maximum moment (????), maximum curvature (????) and limit values of plastic rotations (????(????) and ????(??Ö)).
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Turkish CoHE Thesis Center URL
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Source
Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi
Volume
10
Issue
1
Start Page
209
End Page
216
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