Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi

Yazarlar: Ersin AYDIN, Baki ÖZTÜRK, Muhammed DİKMEN

Konular:İnşaat Mühendisliği

DOI:10.28948/ngumuh.341807

Anahtar Kelimeler:Pounding,Target damping ratio,Added dampers,Optimal passive control

Özet:    In this study, viscous dampers are optimally placed between two adjacent structures with the aim of preventing pounding. Governing equations are derived in time domain for the optimization problem. Target damping ratios are obtained for the coupled system and used as active constraints in the numerical optimization stage. The damping coefficients of the dampers are chosen as design variables, and the sum of the damping coefficients is minimized under the constraints. An algorithm featuring numerical optimization and time history analysis is put forward to test the candidate optimal design under the earthquake loads of interest. The relative displacements are checked at all storey levels to ensure that they remain below the target values. Two 4-storey adjacent shear-building models are used in numerical examples to validate the proposed method. The appropriate number and locations of linear viscous dampers between adjacent structures are determined, and their effects on structural behaviour are evaluated.

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