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<p>On March 28, 2025, an <i>M</i><sub>w</sub> 7.7 earthquake struck near Mandalay, Myanmar, producing intense ground shaking. Strong motion recorded at a station close to the fault indicated a peak ground acceleration of 1.066 g in the vertical direction and 0.631 g in the horizontal direction. The earthquake caused collapse or severe damage of numerous buildings, resulting in thousands of fatalities and injuries, as well as substantial economic losses. The authors participated in the post-earthquake emergency response as members of the China Search and Rescue Team. During the rescue operations, an investigation into the characteristics of collapsed structures was conducted and the stability of building debris was assessed to ensure the safety of rescue efforts. Subsequently, a rapid seismic safety assessment of affected structures was carried out, including nine city residential blocks, two hospitals, and two apartments. Preliminary analyses indicate that the main causes of structural failure were insufficient cross-sectional dimensions of beams and columns, inadequate stirrup reinforcement, and lack of structural redundancy.</p>

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Field survey of building damage at Mandalay during 2025 Myanmar Mw 7.7 earthquake

  • 期刊论文

  • 发表日期：

    2025年5月20日

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  • Tao Wang,
  • Yujiang Zhou,
  • Jie Chen,
  • Xiaoqing Wang,
  • Hongyi Bi,
  • Xiaoting Wang

摘要

On March 28, 2025, an Mw 7.7 earthquake struck near Mandalay, Myanmar, producing intense ground shaking. Strong motion recorded at a station close to the fault indicated a peak ground acceleration of 1.066 g in the vertical direction and 0.631 g in the horizontal direction. The earthquake caused collapse or severe damage of numerous buildings, resulting in thousands of fatalities and injuries, as well as substantial economic losses. The authors participated in the post-earthquake emergency response as members of the China Search and Rescue Team. During the rescue operations, an investigation into the characteristics of collapsed structures was conducted and the stability of building debris was assessed to ensure the safety of rescue efforts. Subsequently, a rapid seismic safety assessment of affected structures was carried out, including nine city residential blocks, two hospitals, and two apartments. Preliminary analyses indicate that the main causes of structural failure were insufficient cross-sectional dimensions of beams and columns, inadequate stirrup reinforcement, and lack of structural redundancy.