Analytical modelling and MDOF response considerations for semi-active tuned mass damper building systems subjected to earthquake excitation

Simple item page
dc.contributor.authorChase, Geoff
dc.contributor.authorChey, M.H.
dc.contributor.authorMacRae, G.A.
dc.contributor.authorCarr, A.W.
dc.contributor.authorRodgers, G.W.
dc.date.accessioned2010-05-11T00:05:53Z
dc.date.available2010-05-11T00:05:53Z
dc.date.issued2009en
dc.descriptionplenary keynote paperen
dc.description.abstractPassive and Semi-Active Tuned Mass Damper (PTMD and SATMD) building systems can reduce structural response due to earthquake excitation. The structure’s upper portion can be used either as a passive TMD, or as a semi-active resetable device in a SATMD system. The seismic performance of multi-story passive and semi-active tuned mass damper (PTMD and SATMD) building systems are investigated for 12-story moment resisting frames modeled as ‘10+2’ stories and ‘8+4’ stories. Segmented upper stories are isolated to act as the tuned mass. Passive viscous damper or semi-active resetable devices are evaluated using an energy dissipation strategy based on an optimal TMD design stiffness and damping value. The semi-active approach uses feedback control to alter or manipulate the reaction forces, effectively re-tuning the system depending on the structural response. Statistical performance metrics are presented for 30 earthquake records from the 3 suites of the SAC project. Time history analyses are used to compute response reduction factors across a wide range of seismic hazard intensities. Results show that SATMD systems can effectively manage seismic response for multi-degree-of freedom (MDOF) systems across a broader range of ground motions in comparison to passive solutions. Specific results include the identification of differences in the mechanisms by which SATMD and PTMD systems remove energy, based on the differences in the devices used. Less variability is also seen for the SATMD systems, indicating an increased robustness.en
dc.identifier.citationChase, J.G., Chey, M.H., MacRae, G.A., Carr, A.W., Rodgers, G.W. (2009) Analytical modelling and MDOF response considerations for semi-active tuned mass damper building systems subjected to earthquake excitation. Christchurch, New Zealand: 13th Asia-Pacific Vibrations Conference, 22-25 Nov 2009.en
dc.identifier.urihttp://hdl.handle.net/10092/3836
dc.language.isoen
dc.publisherUniversity of Canterbury. Mechanical Engineeringen
dc.rights.urihttps://hdl.handle.net/10092/17651en
dc.subjectsemi-activeen
dc.subjectTMDen
dc.subjectsegmented structuresen
dc.subjectseismic responseen
dc.subject.marsdenFields of Research::290000 Engineering and Technology::290800 Civil Engineering::290801 Structural engineeringen
dc.subject.marsdenFields of Research::290000 Engineering and Technology::290500 Mechanical and Industrial Engineering::290501 Mechanical engineeringen
dc.titleAnalytical modelling and MDOF response considerations for semi-active tuned mass damper building systems subjected to earthquake excitationen
dc.typeConference Contributions - Other
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
12622115_Chase.pdf
Size:
160.49 KB
Format:
Adobe Portable Document Format
Download
Collections
Engineering: Conference Contributions