Optimal Evaluation of the Rheological Parameters for STF Dampers in Semi-Rigid Joints of Steel Structures Using Response Surface Method

Table 2

Response variables’ resulting working range.

Variable	Range
Complex viscosity	65 Pa.s to 150 Pa.s
Damping constant	100 MN.s/m to 890 MN.s/m
Effective stiffness	350 N/mm to 550 N/mm