Development of Strong Motion Prediction Model for Huge Subduction Fault and Damage-Mechanism Analysis of Various Types of Structures

(1)基于各类结构非线性反应分析的损伤机理分析：对各类土木工程结构进行了详细的反应分析。对典型的钢筋混凝土结构进行了长时间强震损伤评估。(2)俯冲带大地震下大范围强震损伤分布评估：模拟了南开海槽地震的3~4分钟长时间强震。将其应用于岐阜县及东海地区多个城市的震害评估。(3)考虑地下局部土体结构产生的长周期分量的地震运动预测：建立了考虑地下深层土体结构影响的地震运动预测模型，并应用于大阪平原和大阪平原。

(1) Clarification of Damage Mechanism based on the non-linear response analysis of various types of structures : Detailed analyses were done including the response analysis of various types of civil engineering structures. The quantitative assessments were carried out for the typical RC structures for strong motion with long ground motion duration.(2) Assessment of strong motion damage distribution for wide areas against the huge earthquakes at subduction zone : The strong motion with long duration of 3 to 4 minutes were simulated for the Nankai-Trough Earthquake. They were applied to the damage assessment for Gifu prefecture and many cities in Tokai district.(3) Earthquake motion prediction including long period components generated by the sub-surface local soil structures : The prediction model including the effect of sub-surface deep soil structures was developed, and applied to the Nobi and Osaka Plains.