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Modified direct displacement‐based design approach for structures equipped with fluid viscous damper
Author(s) -
Noruzvand Mahsa,
Mohebbi Mohtasham,
Shakeri Kazem
Publication year - 2020
Publication title -
structural control and health monitoring
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.587
H-Index - 62
eISSN - 1545-2263
pISSN - 1545-2255
DOI - 10.1002/stc.2465
Subject(s) - damper , displacement (psychology) , moment (physics) , engineering , structural engineering , physics , psychology , psychotherapist , classical mechanics
Summary Direct displacement‐based design (DDBD) approach is one of the most effective performance‐based design methods. In this paper, a modified version of DDBD is proposed for the design of structures equipped with fluid viscous damper (FVD) that the effect of higher modes and difference between spectral velocity and pseudo‐spectral velocity are applied in the design process. Different steel moment frames equipped with FVD have been designed using the proposed method, and the achievement of desirable performance level has been evaluated under different earthquake records. For comparison objectives, the performance of the modified method has been compared with the previously proposed DDBD. Although the structures designed using the previously proposed DDBD have achieved the desirable performance level, the peak story drift is significantly less than the target drift and this design approach leads to an expensive overdesign, whereas in the structures designed using the modified DDBD, the peak story drift is close to the target drift and the achievement of desirable performance level has been effectively satisfied. Therefore, the drawback of overdesign has been solved, and the modified version of DDBD can be considered as an effective design approach for structures equipped with FVD.