INVESTIGATION OF THE INPUT ENERGY OF THE SDOFS USING REAL GROUND MOTION RECORD ACCORDING TO TBEC 2018

Ahmet Demir

Makale detayları

INVESTIGATION OF THE INPUT ENERGY OF THE SDOFS USING REAL GROUND MOTION RECORD ACCORDING TO TBEC 2018

Yazarlar:

Ahmet Demir

Yayıncı:

Süleyman Demirel University

Ana Başlıklar:

İnşaat Mühendisliği

Dergi:

Mühendislik Bilimleri ve Tasarım Dergisi Vol.11 Issue 3, pp.1018-1029

Belge Tipi:

Makale

Yayın Tarihi:

9/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001299467

pISSN:

1308-6693

Anahtar kelimeler:

Özet:

 Determination of the input energy for the structures is the most basic subject of energy-based earthquake engineering. The input energy of the structure during earthquakes motion constitutes the sum of hysteretic energy, kinetic energy, elastic deformation energy and damping energy. In energy-based design, the energy demand obtained by earthquake motion should be lower than the energy consumption capacity of the building. Thus, it is important to realistically determine the input energy of the structure. In this study, nonlinear dynamic analyses of single degree-of-freedom SDOF systems were performed in order to evaluate the effect of different design spectra on the input energy demands of the structures. For this purpose, a total of 72 different SDOF systems were considered. In order to examine the effect of different spectra, 4 different locations in Turkey and 3 different local soil classes compatible with these locations were taken into account. 4 different sets of ground motion records were obtained, compatible with each of the 12 different design spectra, and a total of 48 sets of ground motion records were used for nonlinear dynamic analysis. In the analysis results, the mean of the maximum input energy demands and the scattering of these demands were compared. When the analysis results are examined, considering the design spectrum at different levels, it has been observed that the input energy demands of the structures also change. In addition, the mean of the maximum input energy demands obtained from different acceleration sets compatible with the same design spectrum is close to each other. Finally, it has been seen that the scattering of the input energy demands within the set is high, while the scattering between the sets is low.

 Determination of the input energy for the structures is the most basic subject of energy-based earthquake engineering. The input energy of the structure during earthquakes motion constitutes the sum of hysteretic energy, kinetic energy, elastic deformation energy and damping energy. In energy-based design, the energy demand obtained by earthquake motion should be lower than the energy consumption capacity of the building. Thus, it is important to realistically determine the input energy of the structure. In this study, nonlinear dynamic analyses of single degree-of-freedom SDOF systems were performed in order to evaluate the effect of different design spectra on the input energy demands of the structures. For this purpose, a total of 72 different SDOF systems were considered. In order to examine the effect of different spectra, 4 different locations in Turkey and 3 different local soil classes compatible with these locations were taken into account. 4 different sets of ground motion records were obtained, compatible with each of the 12 different design spectra, and a total of 48 sets of ground motion records were used for nonlinear dynamic analysis. In the analysis results, the mean of the maximum input energy demands and the scattering of these demands were compared. When the analysis results are examined, considering the design spectrum at different levels, it has been observed that the input energy demands of the structures also change. In addition, the mean of the maximum input energy demands obtained from different acceleration sets compatible with the same design spectrum is close to each other. Finally, it has been seen that the scattering of the input energy demands within the set is high, while the scattering between the sets is low.

 Determination of the input energy for the structures is the most basic subject of energy-based earthquake engineering. The input energy of the structure during earthquakes motion constitutes the sum of hysteretic energy, kinetic energy, elastic deformation energy and damping energy. In energy-based design, the energy demand obtained by earthquake motion should be lower than the energy consumption capacity of the building. Thus, it is important to realistically determine the input energy of the structure. In this study, nonlinear dynamic analyses of single degree-of-freedom SDOF systems were performed in order to evaluate the effect of different design spectra on the input energy demands of the structures. For this purpose, a total of 72 different SDOF systems were considered. In order to examine the effect of different spectra, 4 different locations in Turkey and 3 different local soil classes compatible with these locations were taken into account. 4 different sets of ground motion records were obtained, compatible with each of the 12 different design spectra, and a total of 48 sets of ground motion records were used for nonlinear dynamic analysis. In the analysis results, the mean of the maximum input energy demands and the scattering of these demands were compared. When the analysis results are examined, considering the design spectrum at different levels, it has been observed that the input energy demands of the structures also change. In addition, the mean of the maximum input energy demands obtained from different acceleration sets compatible with the same design spectrum is close to each other. Finally, it has been seen that the scattering of the input energy demands within the set is high, while the scattering between the sets is low.

 Yapılara giren enerjinin belirlenmesi enerji esaslı deprem mühendisliğinin en temel konusudur. Yer hareketi esnasında yapıya giren enerji histeretik enerji, kinetik enerji, elastik şekil değiştirme enerjisi ve sönümleme enerjisinin toplamını oluşturmaktadır. Enerjiye dayalı tasarımda yer hareketi ile elde edilen enerji talebinin yapının enerji tüketme kapasitesinden daha düşük olması gerekmektedir. Bu yüzden yapıya giren enerjinin gerçekçi olarak belirlenmesi önem taşımaktadır. Bu çalışmada, farklı tasarım spektrumlarının sisteme giren enerji taleplerine etkisinin değerlendirilmesi amacıyla, tek serbestlik dereceli TSD sistemlerin doğrusal olmayan dinamik analizleri yapılmıştır. Bu amaçla toplamda 72 farklı TSD sistem dikkate alınmıştır. Farklı spektrumların etkisini incelemek amacıyla Türkiyede bulunan 4 farklı konum ve bu konumlar ile uyumlu 3 farklı yerel zemin sınıfı dikkate alınmıştır. 12 farklı tasarım spektrumunun her biri ile uyumlu 4 farklı ivme kaydı seti elde edilmiş, toplamda ise 48 adet ivme kaydı seti doğrusal olmayan dinamik analizler için kullanılmıştır. Analiz sonuçlarında maksimum giren enerji taleplerinin ortalaması ile bu taleplere ait saçılımlar karşılaştırılmıştır. Analiz sonuçları incelendiğinde; farklı düzeyde tasarım spektrumu dikkate alındığında sisteme giren enerji taleplerinin de değiştiği görülmüştür. Ayrıca aynı tasarım spektrumu ile uyumlu farklı ivme setlerinden elde edilen maksimum giren enerji taleplerinin ortalaması birbirlerine yakındır. Son olarak, giren enerji taleplerinin set içerisindeki saçılımlarının yüksek olduğu ve buna karşılık setler arası saçılımın ise düşük olduğu görülmüştür.

Makale detayları

INVESTIGATION OF THE INPUT ENERGY OF THE SDOFS USING REAL GROUND MOTION RECORD ACCORDING TO TBEC 2018

Yazarlar:

Ahmet Demir

Yayıncı:

Süleyman Demirel University

Ana Başlıklar:

İnşaat Mühendisliği

Dergi:

Mühendislik Bilimleri ve Tasarım Dergisi Vol.11 Issue 3, pp.1018-1029

Belge Tipi:

Makale

Yayın Tarihi:

9/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001299467

pISSN:

1308-6693

Input Energy

Real Ground Motion Record

Dynamic Analysis

Single Degree of Freedom System

Design Spectrum.Giren Enerji

Gerçek İvme Kaydı

Dinamik Analiz

Tek Serbestlik Dereceli Sistem

Tasarım Spektrum.

Sayı

Makale detayları

Yazarlar: Ahmet Demir

Yayıncı: Süleyman Demirel University

Ana Başlıklar: İnşaat Mühendisliği

Dergi: Mühendislik Bilimleri ve Tasarım Dergisi Vol.11 Issue 3, pp.1018-1029

Belge Tipi: Makale

Yayın Tarihi: 9/2023

Belge Dili: Türkçe

Document ID (Org No.): 2001299467

pISSN: 1308-6693

Sayı

Yazarlar:

Ahmet Demir

Yayıncı:

Süleyman Demirel University

Ana Başlıklar:

İnşaat Mühendisliği

Dergi:

Mühendislik Bilimleri ve Tasarım Dergisi Vol.11 Issue 3, pp.1018-1029

Belge Tipi:

Makale

Yayın Tarihi:

9/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001299467

pISSN:

1308-6693