Pamukkale Univ Muh Bilim Derg. Ahead of Print: PAJES-06636 | DOI: 10.5505/pajes.2023.06636

Seismic performance evaluation of existing reinforced concrete buildings using simplified displacement-based approach

Harun Ceylan¹, Abdulhalim Karaþin², Barýþ Erdil^3
1Van Yuzuncu Yil University Van Vocational School, Van
²Dicle University Faculty Of Engineering Department Of Civil Engineering, Diyarbakýr
³Van Yuzuncu Yil University Faculty Of Engineering Department Of Civil Engineering, Van

While evaluating the seismic performance of existing buildings according to TBC2018, a difficulty and complexity arouses in estimating the rotations that occur at both ends of the load carrying elements under seismic forces. Therefore, in this study, it is aimed to develop a reliable method for estimating the seismic performance of reinforced concrete (RC) buildings using simplified displacement-based formulations. Within the scope of this study, 4 RC buildings having same symmetrical floor plan but with varying number of stories, different material strengths were designed, and 3 existing RC buildings were taken into consideration. All the 7 buildings were modeled using common structural analysis software like SAP2000v20, Sta4CADv14.1, ÝdeCADv10 and ProtaStructure2022 and linear seismic performance analysis were performed. The data obtained as a result of the analysis were processed into the displacement-based formulations created within the framework of this study to determine the damage state of the columns and associated seismic performance of the existing RC buildings considering the general principles and rules given in TBC2018. It was determined that the compatibility between the column damage conditions determined according to the proposed method and the column damage status determined as a result of the hand calculation made according to the calculation principles specified in TBC2018 was 100% in both principal directions. In addition, it is found that the results found from the proposed method were conservative and generally compatible with the results obtained from the common structural analysis software.

Keywords: Nonlinear method, reinforced concrete, building, displacement, shear force

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Mevcut betonarme binalarýn deprem performanslarýnýn basitleþtirilmiþ deplasman tabanlý bir yaklaþýmla deðerlendirilmesi

Harun Ceylan¹, Abdulhalim Karaþin², Barýþ Erdil^3
1Van Yüzüncü Yýl Üniversitesi Van Meslek Yüksekokulu,i̇nþaat Teknolojisi Programý, Van
²Dicle Üniversitesi Mühendislik Fakültesi, Ýnþaat Mühendisliði Bölümü, Diyarbakýr
³Van Yüzüncü Yýl Üniversitesi Mühendislik Fakültesi Ýnþaat Mühendisliði Bölümü, Van

Mevcut binalarýn deprem performanslarýnýn belirlenmesinde deprem etkisiyle elemanlarýn her iki ucunda oluþan dönmeleri tahmin etmek zor ve karmaþýk bir iþtir. Dolayýsýyla bu çalýþmada deprem etkisiyle eleman uçlarýnda oluþan göreli kat ötelemeleri temelli daha basit formülasyonlar ile bina performansýnýn tahmin edilmesinde güvenilir bir yöntem geliþtirilmesi amaçlanmýþtýr. Çalýþma kapsamýnda farklý kat adetine, farklý malzeme dayanýmlarýna ve ayný plana sahip düzgün geometride olan 4 adet betonarme bina tasarlanmýþ, ayrýca 3 adet mevcut betonarme bina ele alýnmýþtýr. 7 adet bina yaygýn olarak yapýsal analizler için kullanýlan SAP2000 v20, Sta4CAD v14.1, ÝdeCAD v10 ve ProtaStructure2022 programlarý ile modellenerek doðrusal performans analizleri yapýlmýþtýr. Analizler sonucunda elde edilen veriler TBDY2018’de mevcut binalarýn deprem performanslarýnýn belirlenmesi amacýyla verilen deprem hesabýna iliþkin genel ilke ve kurallar çerçevesinde, oluþturulan deplasman temelli formülasyonlara iþlenmiþ ve incelenen binalardaki kolonlarýn hasar durumlarý belirlenmiþtir. Önerilen yönteme göre belirlenen kolon hasar durumlarý ile TBDY2018’de belirtilen hesap ilkelerine göre yapýlan el hesabý sonucu belirlenen kolon hasar bölgeleri arasýndaki uyumun her iki asal yönde de %100 olduðu belirlenmiþtir. Ayrýca önerilen yöntemin ele alýnan diðer statik paket programlardan elde edilen sonuçlara nazaran bina performansýnýn tespitinde daha güvenli tarafta kalmasýnýn yaný sýra incelenen paket programlarla da genel olarak uyumlu olduðu söylenebilir.

Anahtar Kelimeler: Doðrusal olmayan yöntem, betonarme, bina, deplasman, kesme kuvveti

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