区役所庁舎の免震改修と液状(化)対策

摘要：

　　Seismic isolation retrofit has been applied to the old buildings with low earthquake resistance since the end of 1990s in Japan However,there are various issues on specific buildings to carry out the retrofitting.This project is a retrofit of a ward office located in the weak ground area in Tokyo,which is expected to be a base in the event of earthquake disaster and requires a high shockproof.One of the problems is that the building must be usable for citizens under retrofitting work.To limit the repair work area,isolation devices were installed introducing pre-stress individually to avoid the local deformation of the structure.Another problem is that the ground of the site may liquefy by an earthquake and it might reduce the effectiveness of long vibration period of the structure acquired by isolation.We took measures for the liquefaction by improving ground in the wall form placed in the shape of lattice.

作者: 以頭秀司 渡井富喜男 杉内章浩 本多剛

作者单位: 株式会社竹中工務店

会议类型: 国内会议

会议名称: 第十届中日建筑结构技术交流会

会议地点: 南京

会议语种:中文

页码: 352-361

在线出版日期: 2013-11-30（万方平台首次上网日期，不代表论文的发表时间）