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SUMMARY:EARTHQUAKE DAMAGE RESISTANT POST-TENSIONED MULTI-STOREY TIMBER BUI
 LDINGS: FROM THEORY TO PRACTICE
DTSTART:20150610T171500
DTEND:20150610T181500
DTSTAMP:20260509T213242Z
UID:58aece06ce09d691161b797d5d511096a715578e327a80c298e0028b
CATEGORIES:Conferences - Seminars
DESCRIPTION:Professor Alessandro Palermo\, Associate Professor\, Universit
 y of Canterbury\, Christchurch\, New Zealand \nSYNOPSIS\nThe recent growth
  of cross-laminated timber (CLT) panel systems in Europe has launched timb
 er as a sustainable and cost-effective alternative to concrete and steel b
 uildings\, however CLT panel systems require a large number of internal st
 ructural walls which limits the flexibility of architectural design. CLT a
 nd other engineered timber materials such as Laminated Veneer Lumber\, hig
 h-grade glue-Lam make the use of post-tensioning techniques a feasible opt
 ion for timber buildings. Post-tensioned timber beams and frames give oppo
 rtunities for much greater use of engineered wood products in large buildi
 ngs by creating large open spaces\, excellent living and working environme
 nts\, and resistance to hazards including earthquakes and extreme events. 
 The post-tensioning provides for rapid erection\, simple and economical co
 nnections between the large timber elements. Post-tensioned timber buildin
 g systems are being developed at the University of Canterbury in collabora
 tion with the Structural Timber Innovation Company Ltd (STIC) funded by Au
 stralian and New Zealand industries\, and the New Zealand government. The 
 post-tensioned structural system uses unbonded steel tendons in ducts in l
 arge timber box beams and/or flooring panels. Beams and suspended floors c
 an be designed similarly to concrete structures for sustaining vertical lo
 ading. The technology\, if additional supplemental damping is provided\, c
 an also be used for earthquake resistant systems\, such as moment resistin
 g frames and walls. In moment-resisting timber frames\, the steel tendons 
 pass through the columns\, providing the moment resistance\, while in wall
 s\, vertical post-tensioning with vertical ducts for the tendons passes th
 rough the concrete foundation. Post-tensioning only provides excellent pos
 t-earthquake re-centering capability of the buildings but not dissipation\
 , therefore additional external/internal steel bars\, respectively placed 
 at the beam-to-column and wall-to-foundation interface for frames and wall
 s\, serves as dissipative fuses. The presentation overviews the benefits o
 f post-tensioning for low-rise multi-storey timber buildings and illustrat
 es the technical details adopted for the several timber buildings designed
  in New Zealand.\nBio : Alessandro Palermo is Associate Professor (Reader)
  at the Department of Civil and Natural Resources Engineering at the Unive
 rsity of Canterbury\, Christchurch\, New Zealand and currently Visiting Pr
 ofessor at ETH Zurich until July 2015. His academic degrees include a Stru
 ctural Engineering Laurea\, MSc and PhD from the Technical University of M
 ilan. He specializes in earthquake engineering with particular focus to th
 e implementation of innovative low damage technologies. His fields of rese
 arch range from bridge engineering to multi-storey timber buildings. His p
 ublication record includes 3 international patents\, over 40 publications 
 in refereed journals\, and 160 more in books and conference proceedings. A
 lessandro also has extensive professional experience and is co-funder and 
 director of a University spin-off company\, Prestressed Timber Limited. Du
 ring the last 6 years\, he has been involved as external consultant\, peer
  reviewer and numerical modeling analyst in innovative projects in New Zea
 land such as\, the Wigram-Magdala bridge link in Christchurch (the world
 ’s first hybrid PRESSS bridge)\, Nelson Marlborough Institute of Technol
 ogy Arts and Media building (the world’s first commercial post-tensioned
  timber structure)\, followed by and many projects related to post-tension
 ing techniques for timber buildings: Carterton Event Centre (Carterton)\, 
 STIC building (Christchurch)\, Kaikoura Civic Centre (Kaikoura) and K-MART
  building (Richmond\, Nelson). Alessandro Alessandro also enjoys his teach
 ing and he has received several student nominations for the “University 
 Lecturer of the Year” award. He is recipient of the 2013 Ivan Skinner aw
 ard by New Zealand Earthquake Engineering Society for his research advance
 s on earthquake bridge engineering and winner (co-recipient with Profs. An
 dy Buchanan and Stefano Pampanin) of the 2013 University of Canterbury Inn
 ovation Medal for the research and commercial developments on post-tension
 ed timber buildings.
LOCATION:GCA330 http://plan.epfl.ch/?lang=fr&room=GCA330
STATUS:CONFIRMED
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