Minimum‐cost optimization of nonlinear fluid viscous dampers and their supporting members for seismic retrofitting

• Published in: Earthquake engineering & structural dynamics Vol. 46; no. 12; pp. 1941 - 1961
• Main Authors: Pollini, Nicolò, Lavan, Oren, Amir, Oded
• Format: Journal Article
• Language: English
• Published: Bognor Regis Wiley Subscription Services, Inc 10.10.2017
• Subjects: Algorithms; Coefficients; Computation; Computer applications; Continuity (mathematics); Cost engineering; Cost function; Costs; Damping; Design; Design optimization; Earthquake dampers; energy dissipation devices; Frame structures; Interpolation; Interpolation techniques; irregular structures; material interpolation functions; Mathematical models; Mixed integer; Power law; Retrofitting; Seismic design; Seismic engineering; seismic retrofitting; Solutions; Stiffness coefficients; Topology; topology and sizing optimization; Topology optimization; Velocity; viscous dampers; Viscous damping
• ISSN: 0098-8847; 1096-9845
• DOI: 10.1002/eqe.2888

Summary This paper presents an effective approach for achieving minimum‐cost designs for seismic retrofitting using nonlinear fluid viscous dampers. The damping coefficients of the dampers and the stiffness coefficients of the supporting braces are designed by an optimization algorithm. A realistic...