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Assessment of Seismic Performance Degradation of RC Building Frames Under Kahramanmaraş Earthquake Sequence
https://orcid.org/http://orcid.org/0000-0003-1901-2848
https://orcid.org/http://orcid.org/0000-0002-8947-4418
The southeastern region of Turkey was shaken by two major earthquakes with magnitudes Mw 7.7 and Mw 7.6 on the same day of February 6th, 2023, resulting in extreme destruction and loss of the lives of more than 50,000 people. Among thousands of collapsed buildings, some of the buildings that survived during the first mainshock of Mw 7.7 collapsed or severely damaged after the second mainshock of Mw 7.6 or also after the occurrence of some lower-magnitude aftershocks. This study aims to assess the impact of this earthquake sequence on seismic performance of typical reinforced concrete (RC) building frames, which is the common structural system for residential buildings in Turkey. For this purpose, an analytical study is performed by investigating the seismic response of a 5-story RC building frame with code-conforming and non-code-conforming design features. Nonlinear time-history analyses of the structural models of these frames are conducted in finite element analysis platform OpenSees under the ground motion sequences recorded at five different seismic recording stations in the region. Seismic demand parameter of maximum inter-story drift ratios resulting from each seismic event in a sequence are computed and the influence of stiffness degradation on seismic demands and performance of the frames are assessed for sequential earthquakes. The outcomes of this study are believed to be useful for revealing damage accumulation during such earthquake sequences and the importance of providing adequate reserve capacity for better seismic performances of buildings.
Assessment of Seismic Performance Degradation of RC Building Frames Under Kahramanmaraş Earthquake Sequence
https://orcid.org/http://orcid.org/0000-0003-1901-2848
https://orcid.org/http://orcid.org/0000-0002-8947-4418
The southeastern region of Turkey was shaken by two major earthquakes with magnitudes Mw 7.7 and Mw 7.6 on the same day of February 6th, 2023, resulting in extreme destruction and loss of the lives of more than 50,000 people. Among thousands of collapsed buildings, some of the buildings that survived during the first mainshock of Mw 7.7 collapsed or severely damaged after the second mainshock of Mw 7.6 or also after the occurrence of some lower-magnitude aftershocks. This study aims to assess the impact of this earthquake sequence on seismic performance of typical reinforced concrete (RC) building frames, which is the common structural system for residential buildings in Turkey. For this purpose, an analytical study is performed by investigating the seismic response of a 5-story RC building frame with code-conforming and non-code-conforming design features. Nonlinear time-history analyses of the structural models of these frames are conducted in finite element analysis platform OpenSees under the ground motion sequences recorded at five different seismic recording stations in the region. Seismic demand parameter of maximum inter-story drift ratios resulting from each seismic event in a sequence are computed and the influence of stiffness degradation on seismic demands and performance of the frames are assessed for sequential earthquakes. The outcomes of this study are believed to be useful for revealing damage accumulation during such earthquake sequences and the importance of providing adequate reserve capacity for better seismic performances of buildings.
Assessment of Seismic Performance Degradation of RC Building Frames Under Kahramanmaraş Earthquake Sequence
https://orcid.org/http://orcid.org/0000-0003-1901-2848
https://orcid.org/http://orcid.org/0000-0002-8947-4418
The southeastern region of Turkey was shaken by two major earthquakes with magnitudes Mw 7.7 and Mw 7.6 on the same day of February 6th, 2023, resulting in extreme destruction and loss of the lives of more than 50,000 people. Among thousands of collapsed buildings, some of the buildings that survived during the first mainshock of Mw 7.7 collapsed or severely damaged after the second mainshock of Mw 7.6 or also after the occurrence of some lower-magnitude aftershocks. This study aims to assess the impact of this earthquake sequence on seismic performance of typical reinforced concrete (RC) building frames, which is the common structural system for residential buildings in Turkey. For this purpose, an analytical study is performed by investigating the seismic response of a 5-story RC building frame with code-conforming and non-code-conforming design features. Nonlinear time-history analyses of the structural models of these frames are conducted in finite element analysis platform OpenSees under the ground motion sequences recorded at five different seismic recording stations in the region. Seismic demand parameter of maximum inter-story drift ratios resulting from each seismic event in a sequence are computed and the influence of stiffness degradation on seismic demands and performance of the frames are assessed for sequential earthquakes. The outcomes of this study are believed to be useful for revealing damage accumulation during such earthquake sequences and the importance of providing adequate reserve capacity for better seismic performances of buildings.
Assessment of Seismic Performance Degradation of RC Building Frames Under Kahramanmaraş Earthquake Sequence
Lecture Notes in Civil Engineering
Uckan, Eren (Herausgeber:in) / Akgun, Haluk (Herausgeber:in) / Gok, Elcin (Herausgeber:in) / Yenidogan, Cem (Herausgeber:in) / Yılmaz, Taner (Autor:in) / Aygın, Onur Cem (Autor:in)
International Conference on Energy and Environmental Science ; 2023 ; Antalya, Türkiye
03.09.2024
18 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Analysis of impulsive ground motions from February 2023 Kahramanmaraş earthquake sequence
| Springer Verlag | 2025
| Springer Verlag | 2025