ABSTRACT

The 2017 M5.4 Pohang, South Korea, earthquake damaged numerous buildings. Immediately after the main shock event, 1,880 professional engineers inspected the damaged buildings and assigned three damage grades (“Usable,” “Restricted use,” and “Unusable”). We investigate factors influencing the building damage. The built year, number of stories, and estimated peak ground acceleration are strongly related with the frequency of building damage. We also prove that the damage caused to the building is influenced by the basin geometry, based on site parameters such as N value, shear wave velocity, depth to rock, and site fundamental period.

中文翻译：

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2017 年韩国浦项 M5.4 地震造成的建筑物损坏和地面条件的影响

摘要

2017 年M 5.4 韩国浦项地震破坏了许多建筑物。主要冲击事件发生后，1,880 名专业工程师立即对受损建筑物进行了检查，并分配了三个损坏等级（“可用”、“限制使用”和“不可用”）。我们调查影响建筑物损坏的因素。建造年份、层数和估计的地面加速度峰值与建筑物损坏的频率密切相关。我们还证明了对建筑物造成的损害受盆地几何形状的影响，基于 N 值、剪切波速度、岩石深度和场地基本周期等场地参数。