Frame buildings are not an answer for earthquakes: The case of the February 2023 earthquakes in Türkiye

IF 3.1 2区 工程技术 Q2 ENGINEERING, CIVIL
Egemen Sönmez, Mario E Rodriguez
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引用次数: 0

Abstract

The February 2023 earthquakes in Türkiye caused widespread devastation and fatalities, highlighting the critical contrast in the seismic performance of reinforced concrete (RC) buildings with moment-resistant frames and those with structural walls. This study employs analyses of nonlinear single-degree-of-freedom (SDOF) systems using selected accelerograms from the earthquakes to evaluate the behavior of these structural systems. Three SDOF systems representing flexible and stiffer frame buildings, alongside RC wall buildings, were examined. The results highlighted the susceptibility of frame buildings to severe damage and collapse compared with the excellent performance of RC wall buildings. Moreover, the study emphasizes a shift of design focus from life safety to functional recovery. It also identifies potential scenarios regarding consecutive earthquake effects. Overall, the findings advocate adequately designed RC wall buildings for enhanced seismic performance and immediate occupation following major earthquakes.
框架结构建筑无法抵御地震:2023 年 2 月土耳其地震案例
2023 年 2 月发生在土耳其的地震造成了广泛的破坏和人员伤亡,凸显了采用抗力矩框架的钢筋混凝土 (RC) 建筑与采用结构墙的建筑在抗震性能上的巨大反差。本研究利用地震中选取的加速度图,对非线性单自由度(SDOF)系统进行分析,以评估这些结构系统的行为。研究了三个 SDOF 系统,分别代表柔性和刚性框架建筑,以及 RC 墙体建筑。研究结果表明,与 RC 墙体建筑的优异性能相比,框架结构建筑更容易遭受严重破坏和倒塌。此外,研究还强调了设计重点应从生命安全转向功能恢复。研究还确定了地震连续影响的潜在情况。总之,研究结果提倡对 RC 墙体建筑进行充分设计,以提高抗震性能,并在大地震后立即投入使用。
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来源期刊
Earthquake Spectra
Earthquake Spectra 工程技术-工程:地质
CiteScore
8.40
自引率
12.00%
发文量
88
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.
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