Abstract
Purpose
The structure should be retained in elastic range under cyclic loading due to earthquake and this can be achieved by addition of energy dissipators. This work represents the effectiveness of two types of metallic dissipaters (X-plate and accordion damper).
Methods
In the first part of the study, the behaviour of the structure considering the devices for four earthquake records is investigated. For this study, the damper has been modeled in each storey at the outer frame of the building. Time history analysis is done.
Results
Due to use of the damper, all damage measures such as displacement and drift are reduced significantly. But it is not possible to provide a damper in each storey. Thus, in the next part, location-based optimization is done using the genetic algorithm. This optimization is done for four and eight numbers of dampers and for that some best location has been indicated depending on the minimum value of function. The entire study is done for both types of dampers.
Conclusions
For reducing the seismic effect on the building, metallic damper is more effective. Genetic algorithm gives the optimal location format for a fixed number of dampers having maximum reduction in responses compared to other possible locations.
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Abbreviations
- K d :
-
Initial stiffness of the XPD,
- F y :
-
Yield load of the XPD
- q :
-
Yield displacement of the XPD
- E :
-
Modulus of elastic for damper material
- σ y :
-
Yield stress of the damper material,
- a :
-
Height of the XPD
- b :
-
Width of the XPD
- t :
-
Thickness of the XPD
- V b :
-
Base shear of building with damper,
- V bu :
-
Base shear of building with no dampers,
- D :
-
Peak storey drift of structure with damper,
- D u :
-
Peak storey drift of structure with no damper,
- f (x) :
-
Objective function
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Manchalwar, A., Bakre, S.V. Optimization of Metallic Damper Location for Seismic Response Control. J. Vib. Eng. Technol. 7, 261–275 (2019). https://doi.org/10.1007/s42417-019-00110-7
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DOI: https://doi.org/10.1007/s42417-019-00110-7