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本文基于震害调查研究,按照破坏的性质将地震破坏分为三类:(1)地震动的直接效应;(2)地震动的间接效应;(3)地震动的次生效应。并对地震破坏的本质作了简要的归纳。本文还将影响地震破坏的因素归结为两方面:(1)地震动特征如震级大小、震中距离、震源深度、震源错动方式、断层破裂速度以及场地条件等;(2)结构抗震性能如结构动力性能(振型、周期、阻尼等)、结构型式、材料性质,施工质量等。并对这些因素进行了简要分析。
Based on the investigation of earthquake damage, the paper divides earthquake damage into three categories according to the nature of the damage: (1) the direct effect of ground motion; (2) the indirect effect of ground motion; and (3) the secondary effect of ground motion. The essence of earthquake damage is briefly summarized. This paper also summarizes the factors affecting earthquake damage in two aspects: (1) the characteristics of earthquake motion such as magnitude, epicenter distance, depth of source, source dislocation, fault rupture velocity and site conditions; (2) Dynamic performance (vibration mode, cycle, damping, etc.), structure type, material properties, construction quality and so on. And a brief analysis of these factors.