Sismik yalıtımlı çelik çerçevelerde giren enerji ve yapı tepkilerinin karşılaştırılması.

Saved in:

Bibliographic Details
Title:	Sismik yalıtımlı çelik çerçevelerde giren enerji ve yapı tepkilerinin karşılaştırılması.
Alternate Title:	Comparison of input energy and structure response in seismically isolated steel frames.
Authors:	Çerçevik, Ali Erdem¹ erdem.cercevik@bilecik.edu.tr, Sevindik, Osman¹ ossevindik@hotmail.com
Source:	Journal of the Faculty of Engineering & Architecture of Gazi University / Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi,. Mar2026, Vol. 41 Issue 1, p63-78. 16p.
Subjects:	Base isolation system, Force & energy, Structural dynamics, Steel framing, Transient analysis, Earthquake resistant design
Abstract (English):	The huge energy generated in the earthquake source reaches the structures in the impact area and causes damage. In order to reduce the damage, the energy reaching the structural elements must be minimized. Separating the structures from the ground with seismic isolation systems placed on the ground floor greatly reduces the energy reaching the structural elements. In this study, the energy changes entering the structure according to different seismic isolator parameters of 3, 6 and 9-storey seismic isolated steel frames were investigated. Lead-core rubber isolator was selected as the seismic isolation system. The superstructure models are modeled with linear materials, while the isolation systems are modeled with non-linear materials. 100 different isolation systems were produced using the isolation period and characteristic strength in the seismic isolation design. The produced seismic isolation systems were applied to superstructure models with different stories and a total of 3300 time history analyses were performed with 11 different acceleration records scaled in accordance with TBEC 2018. A program was developed in Matlab software to repeatedly run the SAP2000 program in which structural analyzes were performed. As a result of the analyses performed with different isolation parameters, the energy entering the structure and the structural responses were compared. The results show that the input energy changes directly proportional to the roof floor accelerations and base shear forces, and inversely proportional to the isolation displacement and damping ratio. Additionally, optimum isolation parameters were determined with the help of the generated graphics. Consequently, it was demonstrated that the input energy can be used in the modeling seismic isolation elements in the future. [ABSTRACT FROM AUTHOR]
Abstract (Turkish):	Deprem kaynağında oluşan büyük enerji, etki bölgesindeki yapılara ulaşarak hasara neden olmaktadır. Bu hasarların azaltılabilmesi için yapı elemanlarına ulaşan enerjinin en aza indirilmesi gerekmektedir. Yapıların taban katına yerleştirilen sismik yalıtım sistemleri ile zeminden ayırmak, yapı elemanlarına ulaşan enerjiyi büyük ölçüde azaltmaktadır. Bu çalışmada 3, 6 ve 9 katlı sismik yalıtımlı çelik çerçevelerin farklı sismik izolatör parametrelerine göre yapıya giren enerji değişimleri araştırılmıştır. Sismik yalıtım sistemi kurşun çekirdekli kauçuk izolatör seçilmiştir. Üst yapı modelleri doğrusal, yalıtım sistemleri ise doğrusal olmayan malzeme ile modellenmiştir. Sismik yalıtım tasarımında izolasyon periyodu ve karakteristik dayanım kullanılarak 100 farklı yalıtım sistemi üretilmiştir. Üretilen sismik yalıtım sistemleri farklı kat adetlerine sahip üst yapı modellerine uygulanarak TBDY 2018'e uygun ölçeklendirilmiş 11 farklı ivme kaydı ile 3300 zaman tanım alanında analiz yapılmıştır. Yapısal analizlerin yapıldığı SAP2000 programını tekrarlı çalıştırmak için Matlab yazılımında bir program geliştirilmiştir. Farklı yalıtım parametreleri ile yapılan analizler sonucu yapıya giren enerji ve yapı tepkileri karşılaştırılmıştır. Elde edilen sonuçlar giren enerji ile çatı katı ivmeleri, taban kesme kuvvetleri ile doğru orantılı, yalıtım deplasmanı ve sönüm oranı ile ters orantılı değiştiğini göstermektedir. Ayrıca üretilen grafikler yardımı ile optimum yalıtım parametreleri belirlenmiştir. Sonuç olarak sismik yalıtım elemanlarının modellenmesinde giren enerjinin kullanılabilir olduğu ortaya konulmuştur. [ABSTRACT FROM AUTHOR]
	Copyright of Journal of the Faculty of Engineering & Architecture of Gazi University / Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi, is the property of Gazi University, Faculty of Engineering & Architecture and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database:	Engineering Source

Description
Abstract:	The huge energy generated in the earthquake source reaches the structures in the impact area and causes damage. In order to reduce the damage, the energy reaching the structural elements must be minimized. Separating the structures from the ground with seismic isolation systems placed on the ground floor greatly reduces the energy reaching the structural elements. In this study, the energy changes entering the structure according to different seismic isolator parameters of 3, 6 and 9-storey seismic isolated steel frames were investigated. Lead-core rubber isolator was selected as the seismic isolation system. The superstructure models are modeled with linear materials, while the isolation systems are modeled with non-linear materials. 100 different isolation systems were produced using the isolation period and characteristic strength in the seismic isolation design. The produced seismic isolation systems were applied to superstructure models with different stories and a total of 3300 time history analyses were performed with 11 different acceleration records scaled in accordance with TBEC 2018. A program was developed in Matlab software to repeatedly run the SAP2000 program in which structural analyzes were performed. As a result of the analyses performed with different isolation parameters, the energy entering the structure and the structural responses were compared. The results show that the input energy changes directly proportional to the roof floor accelerations and base shear forces, and inversely proportional to the isolation displacement and damping ratio. Additionally, optimum isolation parameters were determined with the help of the generated graphics. Consequently, it was demonstrated that the input energy can be used in the modeling seismic isolation elements in the future. [ABSTRACT FROM AUTHOR]
ISSN:	13001884
DOI:	10.17341/gazimmfd.1551655