东日本大地震灾害考察报告

日本的东日本大地震是近年来最大震级的地震,地震本身及造成的震害均具有很多特点。中日联合考察团将现场的考察及对有关问题研讨的主要内容写成本报告。对东日本大地震基本情况及主要特点,尤其是海啸的发生及范围、特征与严重程度作了重点介绍。地震灾害中由地震直接导致的建筑受害不严重,除介绍了震害总体状况,着重介绍了海啸造成的破坏状况及严重程度。除一般震况、震害外,报告中特别针对本次地震特点及国内关心的问题,重点说明了以下内容:长周期地震动的影响是本次地震的一个特点,介绍了其特性及造成的影响与有待研究的问题;日本减、隔震技术的发展现状以及在本次地震中的表现,同时对减、隔震建筑的发展中的问题作了说明;抗震加固工程在地震中的状况、经验与导向;对普遍关心的日本核电站的抗震设计,结合福岛核电站的事故作了介绍;经过本次地震之后,日本建设主管部门对建筑结构抗震初步考虑的对策。

Inspection report of the disaster of the East Japan earthquake by Sino-Japanese joint mission

East Japan earthquake is the largest magnitude earthquake in recent years,the earthquake itself and the result of earthquake damage have many unique features.This report contains the site visit of the Sino-Japanese joint delegation and the main content of the related discussed issues.The first is the basic and main features of the East Japan earthquake,tsunami and scope,characteristics and severity made the highlights.Destruction of buildings in the earthquake disaster that are directly caused by the earthquake is not serious.In addition to the general earthquake situation and earthquake damage,the report specifically for the seismic characteristics and domestic concern,highlights the following contents.The long-period ground motion is a feature of this earthquake,and it describes its characteristics,impact and the issue to be examined;Energy-dissipated and seismically isolated technology development status and performance in the earthquake are described in detail,at the same time the issue of development of the damping and isolation is explained; It also explains the situation in the earthquake,experience and guide of seismic reinforcement works;Widespread concern in the seismic design of nuclear power plants,combined with the Fukushima nuclear power plant accident,has made a presentation;Finally,it describes the seismic countermeasures on building structures by construction authorities in Japan after the earthquake.