Site Observations on Buildings’ Performance in Hatay Province after Kahramanmaraş Earthquakes

Vail Karakale, E. Özgür, Şenol Ataoğlu
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Abstract

Two major earthquakes of 7.7 and 7.6 magnitudes hit a large region of east south of Türkiye on the same day. The first 7.7 MW earthquake occurred in Pazarcık, Kahramanmaraş on the 6th of Feb 2023 followed by an earthquake of 7.6 MW in Elbistan, Kahramanmaraş after 9 hours. Thousands of buildings collapsed in ten provinces in Türkiye and caused thousands of life losses and injuries. More than 14 million people were affected, and a lot of people lost their homes which makes the two major events the worst natural disaster of the century. This paper presents site observations on the seismic performance of the buildings in Hatay province that is the most affected city by these earthquakes. Site observations indicate that most of the collapsed buildings are old building stocks constructed before 1999 and collapsed in a pancake failure mode which increases life losses. In general, newly constructed buildings that were designed according to the new Turkish earthquake design code show good seismic performance. Reasons for failures and failure modes of old and new buildings were investigated.
卡赫拉曼马拉什地震后哈塔伊省建筑物性能的现场观察
图尔基耶东南部的大片地区在同一天分别发生了 7.7 级和 7.6 级的大地震。第一次 7.7 兆瓦地震于 2023 年 2 月 6 日发生在卡赫拉曼马拉什的帕扎尔奇克,9 小时后卡赫拉曼马拉什的埃尔比斯坦又发生了 7.6 兆瓦地震。图尔基耶十个省的数千栋建筑物倒塌,造成数千人伤亡。超过 1400 万人受到影响,许多人失去了家园,这两起重大事件成为本世纪最严重的自然灾害。哈塔伊省是这两次地震中受灾最严重的城市,本文介绍了对哈塔伊省建筑物抗震性能的现场观测结果。现场观测结果表明,大多数倒塌的建筑物都是 1999 年之前建造的老旧建筑,其倒塌方式为 "薄饼 "破坏模式,这增加了生命损失。一般来说,按照土耳其新的地震设计规范设计的新建建筑具有良好的抗震性能。对新旧建筑的倒塌原因和倒塌模式进行了调查。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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