EXPERIMENTAL STUDIES ON 1/5 SCALED REINFORCED CONCRETE FRAMES BY USING DIFFERENT STRENGTHENED METHODS

Year 2019, , 663 - 680, 01.09.2019

Fatih Süleyman Balık Fatih Bahadır

https://doi.org/10.36306/konjes.613898

Abstract

In this experimental study; five RC frames with a scale of 1/5, single
spans and two storey were produced so as to reflect the characteristics of
existing structures. Two RC frames were used as the reference specimens that
without an infill wall and autoclaved aerated concrete blocks (AAC) infilled
wall. Three of these RC frames were strengthened as CFS (Cold Formed Steel) drywall
system, infill RC shear wall and both external RC shear wall and column
jacketing. All specimens produced were tested under reverse cyclic lateral
loading and constant vertical loading. Strength, stiffness and energy
dissipation capacities of all test specimens are compared with each other. The
lateral load carrying capacity and energy dissipation capacities of
strengthened specimens have occurred higher than reference specimens. But
initial stiffness and stiffness at the max lateral load of specimen
strengthened with CFS drywall system have occurred lower than reference
specimen with AACW.

Keywords

Seismic behavior, Strengthening, Reversed cyclic lateral loading, Autoclaved aerated concrete block, Cold formed steel wall system

Supporting Institution

Necmettin Erbakan University Scientific Research Projects Office (BAP)

Thanks

The project presented in this article was supported by Necmettin Erbakan University Scientific Research Projects Office (BAP).

1/5 Ölçekli Betonarme Çerçevelere Farklı Güçlendirme Metotları Uygulanması Üzerine Deneysel Çalışmalar

Abstract

Bu deneysel
çalışmada; mevcut yapıların özelliklerini yansıtacak şekilde 1/5 ölçekli, tek
açıklıklı ve iki katlı 5 adet betonarme çerçeve üretilmiştir. Bu çerçevelerden
2 adedi referans numune olarak biri boş çerçeve diğeri gazbeton dolgu duvarlı
olarak kullanılmıştır. Diğer üç adet betonarme çerçeve ise soğukta
şekillendirilmiş çelik (CFS) duvar sistemi, betonarme dolgu duvarlı ve hem
düzlem dışı betonarme duvarlı hem de betonarme kolon mantolu olarak
güçlendirilmiştir. Üretilen tüm numuneler tersinir-tekrarlanır yatay yük ve sabit
düşey yükleme altında test edilmiştir. Test numunelerine ait dayanım, rijitlik
ve enerji tüketme kapasiteleri birbirleri ile karşılaştırılmıştır.
Güçlendirilmiş numunelere ait yatay yük taşıma ve enerji tüketme kapasiteleri,
referans numunelere göre daha yüksektir. Fakat soğukta şekillendirilmiş çelik
(CFS) duvar sistemi ile güçlendirilen numunenin başlangıç ve maksimum yükteki
rijitlik değerleri, gazbeton dolgu duvarlı (AACW) referans numuneninkinden daha
düşük olmuştur.

Keywords

Deprem davranışı, Güçlendirme, Tersinir-tekrarlanır yatay yükleme, Gazbeton blok, Soğukta şekillendirilmiş çelik duvar sistemi

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