Volume 15, Issue 2 (4-2025)                   IJOCE 2025, 15(2): 203-219 | Back to browse issues page

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Shahrouzi M, Fahimi Farzam M, Gholizadeh J. OPTIMAL DESIGN OF DOUBLE-TMDI FOR SEISMIC CONTROL OF BUILDINGS UNDER SOIL-STRUCTURE INTERACTION BY OPPOSITION-SWITCHING SEARCH. IJOCE 2025; 15 (2) :203-219
URL: http://ijoce.iust.ac.ir/article-1-631-en.html
OPTIMAL DESIGN OF DOUBLE-TMDI FOR SEISMIC CONTROL OF BUILDINGS UNDER SOIL-STRUCTURE INTERACTION BY OPPOSITION-SWITCHING SEARCH
M. Shahrouzi *1 , M. Fahimi Farzam2 , J. Gholizadeh1
1- Civil Engineering Department, Faculty of Engineering, Kharazmi University, Tehran, Iran
2- Civil Engineering Department, Faculty of Engineering, University of Maragheh, Maragheh, Iran
Abstract:   (352 Views)
The tuned mass damper inerter systems have recently received considerable attention in the field of structural control. The present work offers a practical configuration of such a device, called double tuned mass damper inerter (DTMDI) that connects the inerter into the damper masses rather than be attached to the main structure. Soil-structure interaction is also taken into account for the soft and dense soils as well as for the fixed based condition. The H∞  norm of the transfer functions for the roof response is minimized as the objective function. The parameters of DTMDI are optimized using opposition-switching search as an efficient parameter-less algorithm in comparison with lightning attachment procedure optimization, sine cosine algorithm and particle swarm optimization. The system performance is evaluated in the frequency domain, as well as in the time domain under various earthquakes including far-field records, near-field records with forward directivity and with fling-step. The results show superiority of opposition-switching search for optimal design of the proposed DTMDI so that it can significantly reduce both the roof displacement and acceleration response for all the SSI conditions.
Keywords: Double tuned mass damper inerter, Soil-structure interaction, Opposition-switching- search, Meta-heuristic algorithms, Robust seismic control
Full-Text [PDF 1087 kb]   (97 Downloads)    
Type of Study: Research | Subject: Optimal design
Received: 2025/03/18 | Accepted: 2025/05/22
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