Seismic Design of Sports Arena for Tokyo Olympic 2020 Using Energy-Dissipation Devices

IF 1.1 Q3 ENGINEERING, CIVIL

Journal of the International Association for Shell and Spatial Structures Pub Date : 2023-06-01 DOI:10.20898/j.iass.2023.013

Yoshikazu Sugiura, D. Nishikawa, Yasuyoshi Hitomi

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引用次数: 0

Abstract

This facility was used for the Tokyo 2020 Olympic and Paralympic Games. It is a multi-purpose arena with up to 11,000 seats, and the roof covers the large space of the auditorium and stadium column-free. In this paper, the structural design of the main arena is introduced. The roof frame is structured by steel pipe trusses with simple planar trusses as a basic unit. Each planar truss is designed in accordance with the bending moment distribution which occurs in the various span each frame has. By arranging these planar trusses with various shapes, a free roof form is possible to be realized rationally. Oil dampers are installed at the joint of the truss girder and the truss columns, giving the damping effect of earthquake and wind. The dampers are effective at reducing vibrations not only horizontally but also vertically. With respect to unexpected earthquakes, this design is based on the concept of fail-safe, so as to ensure safety. Based on the idea above, large space structure with higher safety is realized using a simple structural system.

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利用消能装置进行2020年东京奥运会体育馆抗震设计

该设施曾用于2020年东京奥运会和残奥会。这是一个多用途的竞技场，有多达11000个座位，屋顶覆盖了礼堂和体育场的大空间。本文介绍了主舞台的结构设计。屋顶框架采用钢管桁架结构，以简单平面桁架为基本单元。每个平面特拉斯都是根据每个框架不同跨度的弯矩分布进行设计的。通过布置这些形状各异的平面桁架，可以合理地实现自由屋顶形式。在特拉斯梁与特拉斯柱的连接处设置油阻尼器，起到地震和风的阻尼作用。阻尼器不仅在水平方向上而且在垂直方向上都能有效地减少振动。对于意外地震，本设计基于故障安全的概念，以确保安全。基于上述思想，采用简单的结构体系实现了安全性较高的大空间结构。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of the International Association for Shell and Spatial Structures ENGINEERING, CIVIL-

CiteScore

1.40

自引率

0.00%

发文量

期刊介绍： The Association publishes an international journal, the Journal of the IASS, four times yearly, in print (ISSN 1028-365X) and on-line (ISSN 1996-9015). The months of publication are March, June, September and December. Occasional extra electronic-only issues are included in the on-line version. From this page you can access one or more issues -- a sample issue if you are not logged into the members-only portion of the site, or the current issue and several back issues if you are logged in as a member. For any issue that you can view, you can download articles as .pdf files.