Optimal Damper Slip Force for Vibration Control Structures Incorporating Friction Device with Sway-Rocking Motion Obtained Using Shaking Table Tests

Table 1

Specifications of specimen.

Property	Component	Method	Value
Slip force	Friction device	4 and 5	Parameter
Height (top to pin component)	Main frame	1	0.39 m
Horizontal stiffness	Main frame	3	1.48 N/cm
Mass (upper half)	Main frame	1	2.58 kg
Moment of inertia (upper half)	Main frame	2	344 kg·cm^2
Mass	Base	1	5.56 kg
Moment of inertia	Base	2	482 kg·cm^2
Horizontal stiffness	Sway part	2	4.92 N/cm
Horizontal damping coefficient	Sway part	2	0.224 Ns/cm
Rotational stiffness	Rocking part	3	4.10 × 10^4 N·cm/rad
Rotational damping coefficient	Rocking part	2	740 Ns·cm/rad