Study on Earthquake Damage Prediction for Core Urban Areas in Tohoku District and its Application to Urban Design for Disaster Prevention

本报告讨论了东北城市地区地震灾害预测的方法和数据，通过这些方法和数据，可以在灾害评估中反映每个地区的地方特征。五个城市被认为是个案研究，即。例如，仙台市位于宫城县，青森县八户市，位于厚岛县郡山市，秋田县的秋田市和本城市。利用地脉动、地面波速度和重力差（MotoRise）等资料，对仙台的深层结构进行了研究。利用所确定的地面模型，对1978年宫城县大地震和预期的立府长町断层地震（Motoki）的地震动强度分布进行了预测。利用地脉动资料和地震观测记录对八户市的地面结构进行了调查。（坂尻、摩罗）收集并分析了东北城市地区实际建筑物的抗震能力（Is值）数据， ...更多信息 制作（柴田）。通过诊断计算和地脉动试验，对某实际钢筋混凝土结构的抗震加固效果进行了研究。对1983年日本海中部地震和秋田大地震的地震动烈度进行了预测，并利用GIS将生命线网络图叠加到地震动烈度图上，用于生命线的破坏预测。野越。研究了具有板变形的长建筑物的三维振动（仓田）。对本京市的木结构房屋的抗震能力进行了调查，获得了建筑年代、土壤条件、抗震能力（小林）的分布等数据，并根据日本政府地震调查委员会的报告，对宫城县的地震危险性进行了调查。利用更新过程讨论了宫城县地震发生的概率模型。研究了大地震发生时间间隔的各种概率模型（柴田），对仙台市民的地震灾害意识和防灾意识问卷调查结果进行了分析，指出了在考虑到土壤条件、建筑物的抗震水平等地方性特征的地区地震安全性方面存在的问题（Motoshi）。1983年日本海中部大地震后，进行了三次关于地震意识的调查，并从地震灾害准备（Nogoshi）的角度对结果进行了调查。对1978年宫城县大地震中严重受损地区的现状（建筑物和遗址）进行了研究（佐藤）。此外，为了寻求开展风险管理教育的可能性，利用国际多媒体网络在小学的城市规划课程中考虑了自然灾害问题（佐藤）。少

In this report, discussed were the methods and data of earthquake damage prediction in Tohoku urban areas, by which the local characteristics of each area could be reflected in the damage estimation. Five cities were considered for case studies, i. e., Sendai city in Miyagi pref., Hachinohe city in Aomori pref., Koriyama city in Hukushima pref., Akita city and Honjyo city in Akita pref..Deep ground structure in Sendai was investigated using information on microtremors, wave velocities in ground and difference in gravity (Motosaka). Using the ground model determined, prediction of ground motion intensity distribution was made for the 1978 Miyagiken-oki earthquake and for the anticipated Rifu-Nagamachi fault earthquake (Motosaka). Ground structure in Hachinohe city was investigated using microtremor data and records of earthquake measurement. (Sakajiri and Moro).Collection and analysis of data on the earthquake resistance capacity (Is value) of actual buildings in Tohoku urban areas were … More made (Shibata). Investigation on the effect of seismic retrofit of an actual RC building was made both by diagnosis calculation and by microtremor test. Prediction of ground motion intensity for 1983 Nihonkai-chubu earthquake and anticipated Akita-oki earthquake was made and maps of lifeline network were overlaid to the ground intensity map by GIS to be used for the damage prediction of lifelines. (Nogoshi). Three-dimensional vibration of a long building with slab deformation was investigated (Kurata). Investigation on the earthquake resistant capacity of wooden houses was made in Honjyo city and data were obtained on the distribution of construction age, soil condition, estimated resistance capacity (Kobayashi).Investigation on the local earthquake risk in Miyagiken-oki was made based on the report of Earthquake Investigation Committee of the Japanese Government. Probability models of earthquake occurrence in Miyagiken-oki were discussed using renewal process. Various probability models for the time interval of large earthquakes were investigated (Shibata).Analysis on the results of questionnaire on the consciousness of Sendai citizens to the earthquake disaster and its prevention was made and problems were pointed out in considering the seismic safety of regional areas taking account of local characteristics such as soil conditions, seismic resistance levels of buildings, etc. (Motosaka). Questionnaires on the consciousness to earthquake were conducted three times after 1983 Nihonkai-Chubu earthquake and the results were investigated from the viewpoint of preparedness for earthquake disaster (Nogoshi). Study on the present situation (buildings and sites) of heavily damaged areas in 1978 Miyagiken-oki earthquake was conducted (Sato). Also, in order to seek the possibility of risk management education, items on natural disaster were taken into consideration in town planning lessons at primary schools using international multi-media networks (Sato). Less