Authors: Huseyin Cetin; Ersin Aydin; Baki Ozturk
Addresses: Department of Civil Engineering, Nigde University, Nigde, 51100, Turkey ' Department of Civil Engineering, Nigde University, Nigde, 51100, Turkey ' Department of Civil Engineering, Hacettepe University, Ankara, 06800, Turkey
Abstract: In this study, a hybrid passive optimal control method is proposed to find the optimal damping coefficients of VDs and a TMD in shear building structures The damping coefficients of TMD and VDs are taken as design variables in the optimisation problem. In first stage of the proposed algorithm, a simple optimisation problem to find the optimal damping coefficients is resolved by using some numerical optimisation methods such as Differential Evolution, Nelder Mead and Simulated Annealing. The target structural response is defined with achieving the allowable level of all interstorey drift ratios (IDR). The proposed method is applied to a six-storey shear building model with VD&TMD. The variation of the upper limits of damping coefficients, the variation of storey mass and stiffness are also investigated in the numerical examples. The investigated method is effective to find the optimal damper allocation in the mixed passive control system.
Keywords: tuned mass dampers; TMDs; optimal dampers; target damping ratio; added dampers; optimal passive control; interstorey drift ratio; IDR.
International Journal of Earthquake and Impact Engineering, 2017 Vol.2 No.2, pp.89 - 120
Received: 14 Sep 2016
Accepted: 21 Feb 2017
Published online: 04 Jan 2018 *