Optimal viscous damper placement to prevent pounding of adjacent buildings
Küçük Resim Yok
Tarih
2020
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
European Association for Structural Dynamics
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Structural pounding is prevalent in general during earthquake shaking for adjacent structures in earthquake prone cities. In this study, the prevention of pounding effect is targeted by the optimal placement of viscous damping elements within the adjacent buildings. One of the important reasons of the pounding phenomenon is the out of phase vibrations of adjacent structures. A couple of adjacent structures which have different heights are modeled as shear buildings to set the proposed method. The relative displacement, defined as the extraction of horizontal displacements of adjacent structures at the top level of the shorter building, are chosen as the objective function to be minimized. In addition, reduction of relative displacement of the buildings and the effects of various vibration characteristics of each building is investigated based on transfer functions. Equations of motion of a structure, which are uncoupled when each structure is considered alone, become coupled when damping elements are placed in between the adjacent structures. The first mode response of the structures is considered while the transfer function response is derived. Optimal designs are determined for different total damping levels and different vibration characteristics of adjacent structures. The results of numerical analyses reveal that optimal designs effectively decrease the relative displacements between adjacent structures. Optimal designs are compared with the uniform design and without damper cases. The numerical analyses show that the proposed optimal damper design method in this study is vigorously effective for the prevention of pounding of adjacent buildings. © 2020 European Association for Structural Dynamics. All rights reserved.
Açıklama
11th International Conference on Structural Dynamics, EURODYN 2020 -- 23 November 2020 through 26 November 2020 -- Virtual, Athens -- 165382
Anahtar Kelimeler
Adjacent buildings, Optimal dampers, Pounding, Seismic effects, Viscous dampers
Kaynak
Proceedings of the International Conference on Structural Dynamic , EURODYN
WoS Q Değeri
Scopus Q Değeri
N/A
Cilt
2
