Displacement of Reinforced Concrete Space Shear Walls as a Result Of Earthquake Effect

Year 2022, Volume: 14 Issue: 3, 225 - 233, 31.12.2022

Cansu Ergin , Fatih Altun

https://doi.org/10.29137/umagd.1215761

Abstract

In reinforced concrete buildings, gaps are formed in certain parts of the curtains. There are displacements in reinforced concrete shears under the effect that simulates an earthquake. Accordingly, in this study, the change between force-displacement relations was examined. The curtains that are the subject of the study are slender curtains with a height/height (Hw/ℓw) ratio higher than 2.5-3.0 according to TBDY 2018, and slender curtains with a combined shear-bending behavior with aspect ratios between two limits. are given as medium-delicate curtains. The effect on the behavior according to the void ratios left at the midpoint of the reinforced concrete curtains was investigated. For this, a total of 4 pieces with ½ scale; Reinforced concrete shears, one of which is a reference and the others with a void ratio of 20%, 35% and 50%, respectively, were produced and the results were compared under the effect of earthquakes. The size effect was tried to be avoided, but since the actual dimensions of the sample were too large, it was produced in 1/2 scale. In the study, a built-in support condition should be created in the laboratory environment in order to represent the curtains structurally close to the real behavior.

Keywords

Reinforced concrete shear, Displacement, Space ratio, Earthquake effect, Ductility, Betonarme perde, Yer değiştirme, Boşluk oranı, Deprem etkisi, Süneklik

Project Number

FDK-2020-10304

Betonarme Boşluklu Perde Duvarlarin Deprem Etkisi Sonucu Yer Değiştirmeleri

Abstract

Betonarme binalarda perdelerin belirli bölgelerinde boşluklar oluşturulmaktadır. Depremi benzeştirir etki altında betonarme perdelerde yer değiştirmeler olmaktadır. Buna bağlı olarak bu çalışmada kuvvet-deplasman ilişkileri arasındaki değişim incelenmiştir. Çalışmaya konu olan perdeler TBDY 2018’e göre yükseklik/boy (Hw/ℓw) oranı 2,5-3,0'ten yüksek olan etkin eğilme davranışı gösteren narin perdeler ve boy/en oranları iki limit arasında kalan bileşik kesme-eğilme davranışı gösteren orta narinlikte perdeler olarak verilmiştir. Betonarme perdelerin orta noktasında bırakılan boşluk oranlarına göre davranışa etkisi araştırılmıştır. Bunun için toplam 4 adet; biri referans diğerleri de sırasıyla %20, %35 ve %50 boşluk oranına sahip betonarme perde üretilerek, deprem etkisi altında sonuçları karşılaştırılmıştır. Boyut etkisinden kaçınılmak istenmiştir fakat numunenin gerçek ölçüleri çok büyük olduğundan 1/2 ölçekte imal edilmiştir. Çalışmada perdelerin yapısal anlamda gerçek davranışa yakın temsil edilmesi açısından laboratuvar ortamında ankastre mesnetlenme koşulu oluşturulmalıdır.

Keywords

Betonarme perde, Yer değiştirme, Boşluk oranı, Deprem etkisi, Süneklik

Supporting Institution

Erciyes Üniversitesi

Project Number

FDK-2020-10304

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