Effect of soft story on seismic performance of reinforced concrete buildings

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Tezin Türü: Doktora

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Mühendislik Fakültesi, İnşaat Mühendisliği Bölümü, Türkiye

Tezin Onay Tarihi: 2017

Öğrenci: VESİLE HATUN AKANSEL

Danışman: AHMET YAKUT

Özet:

Real structures are almost always irregular, as perfect regularity is an idealisation that very rarely occurs. Structural irregularities may vary dramatically in their nature and, in principle, are very difficult to define. In comparison with research efforts dealing with horizontally irregular structures, studies aimed at predicting the behavior of structures with rough layouts in elevation are small in number. Due to drawbacks of irregular structures under seismic excitations, engineers are less confident to design these type of buildings. Vertical irregularities designated in buildings are due to many reasons such as strength, stiffness and mass irregularities and the dynamic behavior of the structures are related with those three parameters. The objective of this study is to carry out a comprehensive research to investigate the effect of vertical irregularities especially soft story on seismic response of structures and to examine efficiency and validity of code specified definitions of vertical irregularities. Typical RC Frames were selected from code designed buildings according to TEC 2007 and irregularities were introduced to reference (base case) frames. Definition of soft story irregularity was investigated.