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<p>This study investigated the seismic damage patterns of school buildings in the seismic area of the 2023 Ms6.2 earthquake in Jishishan through field surveys and structural performance analysis. A detailed survey of 50 school buildings revealed that reinforced concrete frame structures generally demonstrated code-compliant seismic performance, with predominantly slight to moderate damage concentrated in nonstructural components, whereas masonry structures exhibited damage severity strongly correlated with construction quality and seismic detailing practices. Critical failure mechanisms were identified in longitudinal walls near window openings and irregular wall configurations around doorways, with material-specific damage patterns showing autoclaved aerated concrete block walls failing from fracture versus clay brick walls developing joint cracks. The analysis highlights the effectiveness of post-Wenchuan earthquake code revisions in preventing structural collapse, although significant economic losses resulted from repairable infill wall damage. These findings provide practical insights for improving seismic resilience in school building design and reconstruction.</p>

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Seismic Performance and Damage Analysis of School Buildings in the Meizoseismic Area of the Ms6.2 Jishishan Earthquake

  • 期刊论文

  • 发表日期：

    2025年9月3日

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  • Pengfei Jiang,
  • Baitao Sun,
  • Jiaqi Yan,
  • Ke Wei

摘要

This study investigated the seismic damage patterns of school buildings in the seismic area of the 2023 Ms6.2 earthquake in Jishishan through field surveys and structural performance analysis. A detailed survey of 50 school buildings revealed that reinforced concrete frame structures generally demonstrated code-compliant seismic performance, with predominantly slight to moderate damage concentrated in nonstructural components, whereas masonry structures exhibited damage severity strongly correlated with construction quality and seismic detailing practices. Critical failure mechanisms were identified in longitudinal walls near window openings and irregular wall configurations around doorways, with material-specific damage patterns showing autoclaved aerated concrete block walls failing from fracture versus clay brick walls developing joint cracks. The analysis highlights the effectiveness of post-Wenchuan earthquake code revisions in preventing structural collapse, although significant economic losses resulted from repairable infill wall damage. These findings provide practical insights for improving seismic resilience in school building design and reconstruction.