A comparative evaluation of semi-active control algorithms for real-time seismic protection of buildings via magnetorheological fluid dampers

Özge Şahin, Nurettin Gökhan Adar, Muaz Kemerli, Naci Çaglar*, İsmail Şahin, Zekeriya Parlak, Salih Kükrek, Tahsin Engin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

Semi-active vibration control is considered a powerful method in reducing the dynamic responses of buildings by using additional smart damping devices. In this study, magnetorheological (MR) dampers have been proposed as one of the semi-active control devices to mitigate the structural vibrations and improve the seismic performance of the structures. The performance of the MR dampers strongly depends on implemented controllers. Hence, the main purpose of this paper is to evaluate the efficiency of several semi-active control algorithms related to MR dampers for seismic control of civil building structures. A 5-story test structure is manufactured, and an MR damper is installed between the ground and the first floor. The performance of the semi-active control approach is experimentally evaluated on a shaking table under historical earthquake records. A neural network-based modeling approach is adopted in the inverse MR damper model for the current control. Three different control algorithms, namely Proportional-Integral-Derivative (PID), Sliding Mode (SMC) and Energy-based controller (EBC), are applied to the system in real-time. The shaking tests are also carried out on the structures with different natural frequencies by increasing the number of stories without changing the geometry and material properties of the 5-story building model. The results indicate that the SMC controller is the most effective control algorithm among all controllers in reducing the base shear force by 51%.

Original languageEnglish
Article number102795
JournalJournal of Building Engineering
Volume42
DOIs
Publication statusPublished - Oct 2021
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2021 Elsevier Ltd

Funding

This study was fully granted by the Scientific and Technological Research Council of Turkey (TUBİTAK) under Project No: 115M363 . TUBİTAK's financial support is greatly appreciated.

FundersFunder number
TUBİTAK
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu115M363

    Keywords

    • MR damper control
    • Neural network
    • PID control
    • Semi-active control
    • Shaking table test
    • Sliding mode control

    Fingerprint

    Dive into the research topics of 'A comparative evaluation of semi-active control algorithms for real-time seismic protection of buildings via magnetorheological fluid dampers'. Together they form a unique fingerprint.

    Cite this