Vol.6, Special Issue, 2007 pp. 99-110
UDC 550.348.098.64:624.92(045)=111
HIGH-RISE BUILDINGS UNDER EARTHQUAKE EXCITATION:
STABILIZATION BY SLIDING-MODE CONTRO
Georgi M. Dimirovski1, Jun Zhao2,
Honghai Liu3, Miomir K. Vukobratovic4
1SS Cyril and Methodius University,
Faculty of Elec. Eng. & Info. Technologies Rugjer Boskovic b.b., Karpos
II, 1000, Skopje, Republic of Macedonia
2Australian National University, Research
School of Info. Science & Engineering Department of Information Engineering,
Canberra ACT 0200, Australia
3Institute of Industrial Research,
University of Portsmouth
4Mihailo Pupin Institute, Laboratory
of Robotics & Flexible Automation Volgina 15, Belgrade, 11000, Republic
of Serbia
e-mail: gdimirovski@ dogus.edu.tr;
jun.zhao@ anu.edu.au; honghai.liu@
port.ac.uk; vuk@ robot.imp.bg.ac.yu
Abstract. Controlling the dynamics of high-rise buildings either
to ameliorate the damage or prevent their destruction when subject to an
earthquake excitation has been subject of extensive research. All known
control designs have advantages and disadvantages as well as operating
limits. The application of sliding-mode control to controlling earthquake
induced vibrations of a multi-story structural system as an active seismic
compensation plus base isolation has been investigated. The achieved performance
has been compared to the one of traditional industrial controls, and relevant
conclusions drawn. Results of simulation experiments, carried out using
El Centro earthquake acceleration, have shown that the sliding mode control
can decrease significantly displacements of the floors.
Key words: Earthquake; sliding mode control; structural systems;
vibration control
VISOKE ZGRADE POD POBUDOM ZEMLJOTRESA:
STABILIZACIJA UPRAVLJANJEM SA KLIZNIM MODUSOM
Upravljanje dinamike visokih zgrada bilo za ublažavanje oštećenja ili
za sprečavanje njihovog razaranja kada su podlžne na zemljotresnu pobudu
bilo je predemet obimnih istraživanja. Sva poznata projektovanja takvih
upravljanja poseduju kako prednosti tako i nedostatke. Ovde se istražuje
primena upravljanja sa kliznim modusom za upravljanje zemljotresno pobudjenih
vibracija u višespratnoj zgradi kao sistem sa aktivnom kompenzacijom plus
izolacija gradjevinske baze. Postignute performance su uporedjene sa onima
iz tradicionalnog industijskog upravljanja. Rezultati simulacionih eksperimenata,
sprovedenih sa upotrebom registrovane akceleracije cuvenog zemljotresa
El Centro, su pokazale da upravljanje sa kliznim modusom moze značajno
smanjiti pomeranja spratovima zgrade.
Ključne reči: zemljotres; upravljanje sa kliznim modusom;
strukturni sistemi; upravljanje vibracija
