The Nikken Sekkei Tokyo Building has an energy dissipation system with viscous damping walls and buckling restrained braces. After completion in March 2003, accelerometers were installed and an earthquake observation system was introduced to constantly measure seismic motions with the objective of determining the vibration properties of the building during earthquake (Hiroaki Harada, Masato Ishii, 2005). In this report the properties of the seismic motions and the vibration properties of the bui
The Nikken Sekkei Tokyo Building has an energy dissipation system with viscous damping walls and buckling restrained braces. After completion in March 2003, accelerometers were installed and an earthquake observation system was introduced to constantly measure seismic motions with the objective of determining the vibration properties of the building during earthquake (Hiroaki Harada, Masato Ishii, 2005). In this report the properties of the seismic motions and the vibration properties of the bui