Power demands of structures from the Mw 7.8 earthquake of 6 February 2023 in Türkiye

IF 3.1 2区工程技术 Q2 ENGINEERING, CIVIL

Earthquake Spectra Pub Date : 2024-03-04 DOI:10.1177/87552930241233251

Jui-Liang Lin, Che-Min Lin, Jyun-Yan Huang

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引用次数: 0

Abstract

Near-fault pulse-like (PL) ground motions generally transmit huge amounts of energy into structures during a relatively short period compared with non-pulse-like (NPL) ground motions. Consequently, power demand has emerged as a direct and distinctive measure for evaluating the risk that PL ground motions pose on structures. This study examines the power demands of structures subjected to ground motions recorded at 10 seismic stations in six city (or town) centers during the Mw 7.8 earthquake that hit Türkiye on 6 February 2023. The six cities (or towns), Golbasi, Kahramanmaras, Nurdagi, Osmaniye, Iskenderun, and Antakya, were the locations where an international team conducted field reconnaissance 2 weeks after the earthquake. This study first evaluates the power histories and other seismic responses of single-degree-of-freedom structures exposed to both PL and NPL ground motions. Subsequently, the power spectra of 20 horizontal ground motions recorded at the 10 stations are constructed and examined. Through these investigations, we hope to gain a better understanding of and raise awareness regarding the threats that PL ground motions pose to structures in the six cities (or towns) during the earthquake.

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2023 年 2 月 6 日土耳其 7.8 兆瓦地震造成的建筑物电力需求

与非脉冲地动（NPL）相比，近断层脉冲地动（PL）通常会在相对较短的时间内向建筑物传输巨大的能量。因此，功率需求已成为评估脉冲地动对结构造成的风险的一种直接而独特的方法。本研究考察了 2023 年 2 月 6 日土耳其发生 7.8 级地震时，在六个城市（或城镇）中心的 10 个地震台站记录的地面运动对结构的动力需求。这六个城市（或城镇）分别是 Golbasi、Kahramanmaras、Nurdagi、Osmaniye、Iskenderun 和 Antakya，地震发生两周后，一个国际小组在这六个城市（或城镇）进行了实地考察。本研究首先评估了暴露于 PL 和 NPL 地面运动的单自由度结构的功率历史和其他地震响应。随后，我们构建并检查了 10 个台站记录的 20 个水平地面运动的功率谱。通过这些研究，我们希望能更好地了解和认识地震期间 PL 地面运动对六个城市（或城镇）的结构造成的威胁。

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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来源期刊

Earthquake Spectra 工程技术-工程：地质

CiteScore

8.40

自引率

12.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Earthquake Spectra, the professional peer-reviewed journal of the Earthquake Engineering Research Institute (EERI), serves as the publication of record for the development of earthquake engineering practice, earthquake codes and regulations, earthquake public policy, and earthquake investigation reports. The journal is published quarterly in both printed and online editions in February, May, August, and November, with additional special edition issues. EERI established Earthquake Spectra with the purpose of improving the practice of earthquake hazards mitigation, preparedness, and recovery — serving the informational needs of the diverse professionals engaged in earthquake risk reduction: civil, geotechnical, mechanical, and structural engineers; geologists, seismologists, and other earth scientists; architects and city planners; public officials; social scientists; and researchers.