Halit Cenan Mertol

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Citation - WoS: 6
Citation - Scopus: 10
Lessons Learned From Four Recent Turkish Earthquakes: Sivrice-Elazığ, Aegean Sea, and Dual Kahramanmaraş
(Springer, 2024) Tunc, Goekhan; Mertol, Halit Cenan; Akis, Tolga
T & uuml;rkiye is located in an earthquake-prone region where almost all of its population resides in risky areas. In the past 100 years, there has been a strong earthquake every two years and a major one every 3 years. This study investigates the impact of four recent earthquakes, that occurred between 2020 and 2023, on reinforced concrete (RC) buildings. The first, Sivrice-Elaz & imath;& gbreve;, struck the eastern part of T & uuml;rkiye on January 24, 2020, with a moment magnitude of Mw = 6.8. The second, the Aegean Sea, hit the western part of the country on October 30, 2020, with an Mw of 6.6. The third and fourth are the February 6, 2023 dual Kahramanmara & scedil; earthquakes with Mws of 7.7 and 7.6, which struck the eastern part of T & uuml;rkiye approximately 9 h apart. Immediately following these earthquakes, a technical team investigated each of the damaged areas. This study summarizes their findings on RC buildings. It was discovered that the majority of the collapsed or severely damaged RC buildings were constructed before 2000. The main reasons for this included technological limitations, specifically on producing high-quality concrete, as well as a lack of public policies and enforced laws in the construction sector to maintain an acceptable international standard. Furthermore, the damage patterns of buildings from these four earthquakes indicated poor workmanship, low material quality, improper structural framing, a common appearance of soft and weak stories, the inadequate use of shear walls, and defective reinforcement configuration. The significance of soil studies and the enforcement of building inspections are also discussed, along with the earthquake codes. The study concludes that the maximum peak ground accelerations from the dual Kahramanmara & scedil; earthquakes were almost triple the code-prescribed values. Therefore, it is recommended that the current mapped spectral acceleration values be revised and that buildings constructed before 2000 should be prioritized while determining their structural performances.
Citation - WoS: 15
Citation - Scopus: 16
Damage Observation of Reinforced Concrete Buildings After 2020 Sivrice (elazig) Earthquake, Turkey
(Asce-amer Soc Civil Engineers, 2021) Cenan Mertol, Halit; Tunc, Gokhan; Akis, Tolga
An earthquake with a magnitude of M-w = 6.8 and a depth of approximately 8.06 km occurred on January 24, 2020, with the epicenter near the town of Sivrice in Elazig province, Turkey. The earthquake resulted in numerous collapses and severe structural damage to the buildings located in the downtowns and villages of Elazig and Malatya provinces. A technical team investigated the earthquake-affected areas, and this study presents their observations and findings with respect to reinforced concrete buildings. It was concluded that almost all of the collapsed or severely-damaged reinforced concrete buildings were constructed between 1975 and 1998. The design and construction of these buildings did not comply with the specifications of the Turkish earthquake codes valid at that time. The failures and severe damage of the buildings are associated with poor material quality, inadequate reinforcement configuration, and framing problems related to their lateral load-carrying systems. Therefore, it is recommended that buildings constructed between 1975 and 1998 in the region be structurally re-evaluated to avoid additional loss of life and property in future earthquakes. (C) 2021 American Society of Civil Engineers.

Journal	Count
PCI Journal	2
Buildings	2
Journal of the Croatian Association of Civil Engineers	2
Journal of Performance of Constructed Facilities	2
Journal of Reinforced Plastics and Composites	1

Mertol, Halit Cenan

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Sustainable Development Goals

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GENDER EQUALITY

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LIFE BELOW WATER

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REDUCED INEQUALITIES

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GOOD HEALTH AND WELL-BEING

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ZERO HUNGER

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INDUSTRY, INNOVATION AND INFRASTRUCTURE

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PEACE, JUSTICE AND STRONG INSTITUTIONS

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SUSTAINABLE CITIES AND COMMUNITIES

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DECENT WORK AND ECONOMIC GROWTH

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CLIMATE ACTION

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QUALITY EDUCATION

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CLEAN WATER AND SANITATION

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NO POVERTY

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LIFE ON LAND

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PARTNERSHIPS FOR THE GOALS

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AFFORDABLE AND CLEAN ENERGY

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RESPONSIBLE CONSUMPTION AND PRODUCTION