DOI QR코드

DOI QR Code

Structual Design of a Building with High Damping Provided by Deformation Amplification Mechanisms and Tuned Viscous Mass Damper

  • Mizuki Shigematsu (Structural Design Division, Engineering Department, Nikken Sekkei Ltd.) ;
  • Takaaki Udagawa (Structural Design Division, Engineering Department, Nikken Sekkei Ltd.) ;
  • Satoru Nagase (Structural Design Division, Engineering Department, Nikken Sekkei Ltd.)
  • Published : 2023.09.11

Abstract

This paper presents the structural design and response control system of the JR MEGURO MARC building, a 70 meters high office building with steel structure located in Tokyo (Figure 1). In order to achieve high earthquake resistance and useable office space, this building integrates a centralized response control system with deformation amplification mechanisms and tuned viscous mass dampers on the lower floor. Moreover, buckling-restrained braces (BRB) are installed on the upper floors to increase the effectiveness of centralized response control system and to reduce damage of the main frames in the event of a major earthquake. It features an efficient centralized response control system by amplifying the deformation of the dampers without creating a soft story.

Keywords

Acknowledgement

In Mach 2022, this building was completed and has started operation. Here, I would like to express my sincere gratitude for the great cooperation and understanding of the building owner, constructor and all other parties involved.

References

  1. Ishii, M., Oyama, T., Udagawa, T. (2017). Proposal for new deformation amplification system to increase effect of seismic dampers, 16WCEE 2017, Paper No 717.