Kinematically excited parametric vibration of a tall building model with a TMD. Pt. 2, Experimental analyses
PBN-AR
Instytucja
Wydział Budownictwa Lądowego i Wodnego (Politechnika Wrocławska)
Informacje podstawowe
Główny język publikacji
eng
Czasopismo
Archives of Civil and Mechanical Engineering
ISSN
1644-9665
EISSN
Wydawca
DOI
URL
Rok publikacji
2014
Numer zeszytu
nr 1
Strony od-do
218-229
Numer tomu
vol. 14
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Liczba arkuszy
Słowa kluczowe
pol
budynek wysoki
drgania parametryczne
badania doświadczalne
Streszczenia
Język
eng
Treść
This paper constitutes the second part of the article Kinematically excited parametric vibration of a tall building model with a TMD. Part 1: numerical analyses (ACME, in press) by K. Majcher and Z. Wójcicki, which presents the results of theoretical research. This paper presents the experimental verification of those results. The experimental studies were carried out with the use of an especially designed physical model of a tall building, which rested on an earthquake simulator – a shaking table – created for this project. The simulator was used to generate several types of kinematic excitations: harmonic ones, superpositions of harmonic ones and, finally, ones generated on the basis of real seismograms. Vibrations were kinematically excited in the horizontal and vertical directions independently and simultaneously. The vertical component of the earthquake causes the pendulum suspension point to vibrate, thus exciting the pendulum parametrically. The theoretical study indicated a significant influence of this parametric excitation (parametric resonance) on the effectiveness of the Pendulum Tuned Mass Damper (PTMD). Therefore, the experimental analyses were especially focused on the parametric effects' impact on: • the PTMD's ability to reduce the building's vibration, and • the possibility of parametric resonance of the building due to parametric resonance of the PTMD.
Inne
System-identifier
000190114
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