Explanation of the Problems in Reinforced Concrete Buildings Observed in the February 6th, 2023 Earthquakes with a Hierarchical Triangle

Halit Mertol

Makale detayları

Explanation of the Problems in Reinforced Concrete Buildings Observed in the February 6th, 2023 Earthquakes with a Hierarchical Triangle

Yazarlar:

Halit Mertol

Yayıncı:

Igdir University

Ana Başlıklar:

İnşaat Mühendisliği

Dergi:

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.13 Issue 4, pp.2717-2729

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001302922

pISSN:

2536-4618

Anahtar kelimeler:

Özet:

 On February 6th, 2023, at 04:17, our country was struck by an earthquake with a magnitude of Mw7.7. The epicenter was Pazarcık, Kahramanmaraş. About nine hours later, at 13:24, a second earthquake with a magnitude of Mw7.6 occurred in Elbistan, Kahramanmaraş. After the earthquakes, 11 cities in the region were declared as disaster zones. According to the data of the Ministry of Environment, Urbanization and Climate Change, it has been determined that 582 thousand independent sections and 202 thousand buildings in the region are to be demolished immediately, heavily damaged or demolished. In this article, as a result of the investigations made in the earthquake effected regions, which started on the day of the earthquake and lasted for 5 days, the problems that caused the collapse of reinforced concrete buildings were explained in a hierarchical triangle, in the order of importance. Insufficient development length, end of the stirrups not bent at 135, problems with the materials, lack of confinement regions at the ends of columns and beams, strong beam-weak column, etc. It has been observed that these problems constitute a significant part of the collapses. It was determined that the collapsed structures did not meet the requirements of the earthquake regulations in effect at the time they were built.

 On February 6th, 2023, at 04:17, our country was struck by an earthquake with a magnitude of Mw7.7. The epicenter was Pazarcık, Kahramanmaraş. About nine hours later, at 13:24, a second earthquake with a magnitude of Mw7.6 occurred in Elbistan, Kahramanmaraş. After the earthquakes, 11 cities in the region were declared as disaster zones. According to the data of the Ministry of Environment, Urbanization and Climate Change, it has been determined that 582 thousand independent sections and 202 thousand buildings in the region are to be demolished immediately, heavily damaged or demolished. In this article, as a result of the investigations made in the earthquake effected regions, which started on the day of the earthquake and lasted for 5 days, the problems that caused the collapse of reinforced concrete buildings were explained in a hierarchical triangle, in the order of importance. Insufficient development length, end of the stirrups not bent at 135, problems with the materials, lack of confinement regions at the ends of columns and beams, strong beam-weak column, etc. It has been observed that these problems constitute a significant part of the collapses. It was determined that the collapsed structures did not meet the requirements of the earthquake regulations in effect at the time they were built.

 On February 6th, 2023, at 04:17, our country was struck by an earthquake with a magnitude of Mw7.7. The epicenter was Pazarcık, Kahramanmaraş. About nine hours later, at 13:24, a second earthquake with a magnitude of Mw7.6 occurred in Elbistan, Kahramanmaraş. After the earthquakes, 11 cities in the region were declared as disaster zones. According to the data of the Ministry of Environment, Urbanization and Climate Change, it has been determined that 582 thousand independent sections and 202 thousand buildings in the region are to be demolished immediately, heavily damaged or demolished. In this article, as a result of the investigations made in the earthquake effected regions, which started on the day of the earthquake and lasted for 5 days, the problems that caused the collapse of reinforced concrete buildings were explained in a hierarchical triangle, in the order of importance. Insufficient development length, end of the stirrups not bent at 135, problems with the materials, lack of confinement regions at the ends of columns and beams, strong beam-weak column, etc. It has been observed that these problems constitute a significant part of the collapses. It was determined that the collapsed structures did not meet the requirements of the earthquake regulations in effect at the time they were built.

 Ülkemiz 6 Şubat 2023 tarihinde, saat 04:17de merkez üssü Kahramanmaraşın Pazarcık ilçesi olan Mw7.7 büyüklüğünde bir depremle sarsılmıştır. Yaklaşık dokuz saat sonra, saat 13:24te, bu sefer merkez üssü Kahramanmaraşın Elbistan ilçesi olan Mw7.6 büyüklüğünde ikinci bir deprem oluşmuştur. Depremlerin çevresinde bulunan 11 şehir afet bölgesi kapsamına alınmıştır. Çevre, Şehircilik ve İklim Değişikliği Bakanlığının verilerine göre bölgede 582000 bağımsız bölüm ve 202000 binanın acil yıkılacak, ağır hasarlı veya yıkık olduğu saptanmıştır. Bu makalede, deprem bölgesine yapılan, depremin olduğu gün başlayan ve 5 gün süren incelemeler neticesinde, betonarme binalarda yıkılmaya neden olan sorunlar hiyerarşik bir üçgen şeklinde, önem sırasına göre anlatılmıştır. Yetersiz kenetlenme boyu, etriye uçlarının 135 derece bükülmemesi, malzeme ile ilgili sorunlar, kolon ve kiriş uç bölgelerinde sarılma bölgelerinin bulunmaması, güçlü kiriş-zayıf kolon, vb. sorunların yıkımların önemli bir kısmını oluşturduğu gözlemlenmiştir. Yıkılan yapıların, yapıldıkları dönemde yürürlükte olan deprem yönetmeliklerinin şartlarını yerine getirmediği görülmüştür.

Makale detayları

Explanation of the Problems in Reinforced Concrete Buildings Observed in the February 6th, 2023 Earthquakes with a Hierarchical Triangle

Yazarlar:

Halit Mertol

Yayıncı:

Igdir University

Ana Başlıklar:

İnşaat Mühendisliği

Dergi:

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.13 Issue 4, pp.2717-2729

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001302922

pISSN:

2536-4618

Kahramanmaraş

Earthquake

Reinforced concrete building

Hierarchical triangle

Reasons of collapseKahramanmaraş

Deprem

Betonarme bina

Hiyerarşik üçgen

Yıkılma nedenleri

Sayı

Makale detayları

Yazarlar: Halit Mertol

Yayıncı: Igdir University

Ana Başlıklar: İnşaat Mühendisliği

Dergi: Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.13 Issue 4, pp.2717-2729

Belge Tipi: Makale

Yayın Tarihi: 1/2023

Belge Dili: Türkçe

Document ID (Org No.): 2001302922

pISSN: 2536-4618

Sayı

Yazarlar:

Halit Mertol

Yayıncı:

Igdir University

Ana Başlıklar:

İnşaat Mühendisliği

Dergi:

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.13 Issue 4, pp.2717-2729

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001302922

pISSN:

2536-4618