Shock and Vibration / 2017 / Article / Fig 10

Research Article

Effects of Precast Cladding Systems on Dynamic Characteristics of Steel Frame Buildings by Ambient and Free Vibration Tests

Figure 10

Data processing procedure of free vibration test data of Case .
(a) Time history of response acceleration data on top floor
(b) Fourier spectrum of response acceleration data
(c) Filtered free vibration data
(d) Curving fitting result