Optimization and performance assessment of Multi-Tuned Mass Dampers (MTMD) to mitigate seismic pounding of adjacent buildings via a novel hybrid algorithm

Djerouni S., BEKDAŞ G., NİGDELİ S. M.

Journal of Building Engineering, cilt.103, 2025 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 103
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1016/j.jobe.2025.112168
  • Dergi Adı: Journal of Building Engineering
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC
  • Anahtar Kelimeler: Adjacent buildings, Design optimization, Earthquake excitation, Grey wolf optimizer, Hybrid algorithm, Multiple tuned mass dampers, Optimal parameters, Particle swarm optimizer
  • İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet

Özet

This paper addresses the vibration reduction of adjacent buildings using multiple-tuned mass dampers (MTMDs) compared with single-tuned mass dampers (STMD). The study establishes two control schemes for MTMDs. The first is an MTMD installed at the top floor (MTMDs at the top); the second is an MTMD distributed along the floor level (d-MTMDs). In order to exploit the performance of the control schemes, the determination of the optimum parameters such as mass, damping, and stiffness is recommended. A new hybrid metaheuristic algorithm called (PSO-GWO) that integrated the specific advantages of two metaheuristics (particle swarm optimizer and grey wolf optimizer) is proposed for the optimization process. To the best of the authors’ knowledge, a hybrid algorithm (PSO-GWO) has never been discussed in the optimization problem of controlling adjacent buildings. Once the optimal design parameters of three control schemes, including the STMD, are found, their effectiveness and robustness regarding unprotected adjacent buildings (NC) in the frequency domain and time domain are assessed under a catalog of 462 earthquake records with different frequency contents. The main value of interest includes interstory drift of buildings 1 and 2, pounding distance, base shear demand, and stroke device demand. The process result showed that d-MTMDs mitigate pounding risk, interstory drift, and base shear demand more effectively than STMD and MTMDs at the top. This higher reduction of the d-MTMDs is achieved at the expanse of the yielding stroke device of one of the TMDs installed below the top floor.