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Multi-objective optimisation; seismic response; dynamically similar adjacent buildings

Multi-objective optimisation of damper placement in dynamically similar adjacent buildings is considered with identical viscoelastic dampers used for vibration control. An exhaustive search is used to describe the solution space in terms of various quantities of interest such as maximum top floor displacement, maximumfloor acceleration, base shear and inter-storey 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 multiobjectiveevolutionary algorithms, viz. NSGA-II and MOPSO, is evaluated for a specific example.

M B PATIL¹ U RAMAKRISHNA² C MOHAN²

1. Department of Electrical Engineering, Indian Institute of Technology Bombay, Mumbai, India
2. Department of Civil Engineering, BITS Pilani, Hyderabad Campus, Hyderabad, India

Published

8 August 2020

Manuscript received

10 January 2020

Manuscript revised

13 March 2020

Accepted

16 March 2020