Multi-Objective Optimisation of Damper Placement for Improved Seismic Response in Dynamically Similar Adjacent Buildings
This work addresses seismic safety for civil engineers, but it is incremental as it applies existing methods to a specific structural scenario.
The paper tackles the problem of optimizing damper placement in adjacent buildings to improve seismic response, finding that Pareto fronts contain very few solutions and evaluating NSGA-II and MOPSO algorithms for a specific case.
Multi-objective optimisation of damper placement in dynamically symmetric adjacent buildings is considered with identical viscoelastic dampers used for vibration control. First, exhaustive search is used to describe the solution space in terms of various quantities of interest such as maximum top floor displacement, maximum floor acceleration, base shear, and interstorey drift. With the help of examples, it is pointed out that the Pareto fronts in these problems contain a very small number of solutions. The effectiveness of two commonly used multi-objective evolutionary algorithms, viz., NSGA-II and MOPSO, is evaluated for a specific example.