Control of Eccentric Building Vibration with Base Isolation

Australian Acoustical Society
Publication Type:
Journal Article
Acoustics Australia, 2005, 33 (1), pp. 7 - 12
Issue Date:
Full metadata record
Files in This Item:
Filename Description SizeFormat
2005002402.pdf723.46 kBAdobe PDF
Base isolation is found effective in reducing torsional response of structures with mass eccentricity when subjected to earthquakes. In this study, dynamic characteristics of an eccentric five-storey benchmark model, isolated with laminated rubber bearings (LRB) and lead core rubber bearings (LCRB), were examined using a shaker table and four different ground motions. The earthquake-resistant performance of LRB and LCRB isolators was evaluated. It was observed that both transverse and torsional responses were significantly reduced with the addition of an LRB or LCRB isolated system regardless of ground motion input. However, the LRB was identified to be more effective than LCRI3 in reducing relative torsional angle, model relative displacements, accelerations and angular accelerations, and therefore, provided a better protection of the superstructure and its contents.
Please use this identifier to cite or link to this item: