（株式会社日建设计大阪分公司结构工程部， 大阪 530-8211）

［摘要］中之岛音乐塔是一座高200m的多功能复杂建筑,包含一重建的可容纳2 700个座位的音乐大厅以及一新闻公司总部办公区。为了在大空间的音乐大厅上建办公楼,采用了转换桁架体系。转换桁架体系由巨型桁架和带状桁架组成,用于承担其上部结构的所有荷载并将其转移到音乐大厅的外侧。另外，上部结构作为新闻公司总部办公楼,需要更高的抗震性能。为了使建筑物满足高水平的抗震设防标准，结构采用中间层隔震技术。

［关键词］结构设计； 复杂建筑； 巨型结构； 钢结构； 中间层隔震技术

中图分类号：TU318文献标识码：A文章编号：1002-848X

(2015)11-0043-08

Structural design of Nakanoshima Festival Tower

Ken Okada， Satoshi Yoshida

（Structural Engineering Department, Osaka Office, Nikken Sekkei Ltd., Osaka 530-8211, Japan）

Abstract:Nakanoshima Festival Tower is a 200m high-rise complex building which contains a renewed 2700-seat capacity concert hall known as “Festival Hall” and offices including headquarter of a news company. In order to build up an office tower on the hall which requires large open space, a giant truss system is employed. The giant trusses being composed of mega-trusses and belt-trusses support all the building weight above them and transfer the load to the outside of the hall. The building also requires high seismic resistance performance for a news company. Application of mid-story seismic isolation enables the building to satisfy high-level seismic resistance criteria.

Keywords:structural design； complex building； mega structure； steel structure； mid-story seismic isolation

作者简介：冈田健，博士，结构工程部主管，Email:ken.okada@nikken.jp。