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Observations on the Van Earthquake and Structural Failures
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TLDR
In this paper, the results of a field reconnaissance survey of the affected earthquake area were reported and common structural failures in reinforced concrete (RC) structures were summarized, including weak column-strong beam formations, hinging in the columns, column-beam joint failures, lap splice inadequacies, poor concrete quality, insufficient transverse reinforcement, buckling of longitudinal column reinforcement, pancake type of collapse mechanism, soft and weak-story failures, and short column formations.Abstract:
Turkey is located in one of the most seismically active regions in the world. In the 1999 Marmara earthquake in Turkey, more than 20,000 people died. On October 23, 2011, an earthquake with a magnitude of 7.2 on the Richter scale struck the Van and Ercis cities, causing more than 600 casualties. The epicenter was located in Zone 1 in the earthquake zones map of Turkey. In this paper, the results of a field reconnaissance survey of the affected earthquake area were reported and common structural failures in reinforced concrete (RC) structures were summarized. The observed failure modes included weak column–strong beam formations, hinging in the columns, column–beam joint failures, lap splice inadequacies, poor concrete quality, insufficient transverse reinforcement, buckling of longitudinal column reinforcement, pancake type of collapse mechanism, soft- and weak-story failures, and short column formations. The buildings in Van and Ercis have also several undesired architectural features, such as th...read more
Citations
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Performance of structures in İzmir after the Samos island earthquake
Ahmet Yakut,Halûk Sucuoğlu,Baris Binici,Erdem Canbay,Cemalettin Dönmez,Alper Ilki,Alp Caner,Ozan Cem Celik,Bekir Özer Ay +8 more
TL;DR: A detailed damage assessment was carried out by the Earthquake Engineering Research Center of Middle East Technical University to compile data on the damage of RC and masonry buildings in Izmir considering its distance to the city as mentioned in this paper.
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Correlation of earthquake intensity measures and spectral displacement demands in building type structures
TL;DR: In this paper, correlation of many scalar earthquake intensity measures (IMs) named as PGA, PGV, arms, vrms, drms, Ia, CAV, ASI, SI are studied.
Journal ArticleDOI
Buildings Damages after Elazığ, Turkey Earthquake on January 24, 2020
TL;DR: In this paper, the authors share the results of detailed investigation in the earthquake-stricken area and compare the causes of damages and failures observed in the buildings were compared to those that had occurred in previous earthquakes in Turkey.
Journal ArticleDOI
Assessing a Retrofitting Method for Existing RC Buildings with Low Seismic Capacity in Turkey
TL;DR: In this article, the effectiveness of external shear retrofit of reinforced concrete (RC) buildings, especially the ones located in Turkey, was studied, and three six-story prototype RC buildings were created to study the effectiveness with and without the inclusion of window openings, constructed at building corners.
A review on the study of historical structures using integrated invetigation activities for seismic safety assessment. Part II: Model updating and seismic analysis
TL;DR: In this article, the authors present a continuation of a review on the seismic safety assessment of historical structures using some selected integrated investigation activities, focusing on the updating of the numerical models used in the assessment phase and the used techniques in the seismic evaluation.
References
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Journal ArticleDOI
Performance of reinforced concrete buildings during the August 17, 1999 Kocaeli, Turkey earthquake, and seismic design and construction practise in Turkey
TL;DR: In this paper, a large number of reinforced concrete buildings collapsed or were heavily damaged during the 7.4 magnitude earthquake that struck northwestern Turkey on August 17, 1999, and the elastic acceleration response spectra from the recorded motions were comparable with the elastic design spectra specified in the current Turkish seismic code.
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Performance of reinforced concrete buildings during the May 1, 2003 Bingöl Earthquake in Turkey
TL;DR: In this paper, the authors compared seismic code requirements with observed earthquake damage and observed structural deficiencies and mistakes such as nonductile details, soft and weak stories, poor concrete quality, short columns, strong beams, strong columns, large and heavy overhangs and unconfined gable walls.
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What is to be learned from damage and failure of reinforced concrete structures during recent earthquakes in Turkey
Musa Hakan Arslan,Hasan Korkmaz +1 more
TL;DR: In this article, the performance of reinforced concrete buildings during recent earthquakes in Turkey is discussed and important general lessons learned from these earthquakes are formulated and a short overview of the emergency management measures taken is also presented.
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An experimental study on reinforced concrete partially infilled frames
Özgür Anil,Sinan Altin +1 more
TL;DR: In this paper, the authors investigated the behavior of partially infilled reinforced concrete (RC) frames under cyclic lateral loading and found that partially infill reinforced concrete frames exhibited significantly higher ultimate strength and higher initial stiffness than the bare frame (frame with no infill).
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Re-evaluation of building damage during recent earthquakes in Turkey
TL;DR: In this paper, the authors evaluated the seismic performance of the most common reinforced concrete building stock in Turkey considering nonlinear behavior of the components and determined their seismic displacement demands using nonlinear response history analysis under selected ground motions.