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Seismic Design for the Sustainable City: A Report on Japanese Practice

机译：可持续城市的抗震设计：日本实践报告

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Advances in seismic design technology today enable structural engineers to design buildings witha variety of seismic safety levels corresponding to different demands of the society. However,target of design is basically limited to secure life safety level within relatively short time span, i.e.,serviceable life of each building. Aspects of constructing sustainable cities, which consists ofbuildings with long life, are not taken into account in general.Strong earthquakes occur at intervals that are longer than life of individual building or people. Onthe other hand, as life of cities is obviously much longer, the corresponding seismic action isstronger than the design action and may cause serious damage in buildings designed for their lifeonly. Taking these into account, we have to design each building for earthquakes considering thelife of cities in order to secure continuity of urban activities over disastrous earthquakes.However, there are problems to be solved in order to implement such seismic design. In thispaper, factors in seismic engineering that hinder to realize long life city are identified anddiscussions on future steps of structural engineers to contribute in constructing sustainable societyare indicated.
机译：如今，抗震设计技术的进步使结构工程师能够通过以下方式设计建筑物： 符合社会不同需求的各种地震安全等级。然而， 设计的目标基本上仅限于在相对较短的时间范围内确保生命安全水平，即 每个建筑物的使用寿命。建设可持续城市的各个方面，其中包括 通常不考虑使用寿命长的建筑物。 强震发生的时间间隔比单个建筑物或人员的寿命长。在 另一方面，由于城市的寿命明显更长，相应的地震作用是 比设计效果更强，并可能在其使用寿命内设计的建筑物中造成严重损坏 只要。考虑到这些因素，我们必须针对地震设计每座建筑物 以确保城市活动在灾难性地震中的连续性。 但是，为了实现这种抗震设计，存在要解决的问题。在这个 论文中，确定了阻碍实现长寿城市的地震工程因素，并 讨论结构工程师为构建可持续发展社会做出贡献的未来步骤 被指示。

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