Feasibility of pinned-base connections for demountable precast frame building systems

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dc.contributor.authorAninthaneni, P.K.
dc.contributor.authorDhakal, Rajesh
dc.contributor.authorMarshall, J.
dc.date.accessioned2017-01-31T03:06:40Z
dc.date.available2017-01-31T03:06:40Z
dc.date.issued2014en
dc.description.abstractIn recent Canterbury earthquakes, structures have performed well in terms of life safety but the estimated total cost of the rebuild was as high as $40 billion. The major contributors to this cost are repair/demolition/rebuild cost, the resulting downtime and business interruption. For this reason, the authors are exploring alternate building systems that can minimize the downtime and business interruption due to building damage in an earthquake; thereby greatly reducing the financial implications of seismic events. In this paper, a sustainable and demountable precast reinforced concrete (RC) frame system in which the precast members are connected via steel tubes/plates or steel angles/plates and high strength friction grip (HSFG) bolts is introduced. In the proposed system, damaged structural elements in seismic frames can be easily replaced with new ones; thereby making it an easily and quickly repairable and a low-loss system. The column to foundation connection in the proposed system can be designed either as fixed or pinned depending on the requirement of strength and stiffness. In a fixed base frame system, ground storey columns will also be damaged along with beams in seismic events, which are to be replaced after seismic events; whereas in a pin base frame only beams (which are easy to replace) will be damaged. Low to medium rise (3-6 storey) precast RC frame buildings with fixed and pin bases are analyzed in this paper; and their lateral capacity, lateral stiffness and natural period are scrutinized to better understand the pros and cons of the demountable precast frame system with fixed and pin base connections.en
dc.identifier.citationAninthaneni, P.K., Dhakal, R.P., Marshall, J. (2014) Feasibility of pinned-base connections for demountable precast frame building systems. Byron Bay, Australia: 23rd Australasian Conference on Mechanics of Structures and Materials (ACMSM23), 9-12 Dec 2015.en
dc.identifier.urihttp://hdl.handle.net/10092/13150
dc.language.isoen
dc.publisherUniversity of Canterbury. Civil and Natural Resources Engineeringen
dc.rights.urihttps://hdl.handle.net/10092/17651
dc.subjectPrecast concreteen
dc.subjectdemountable systemsen
dc.subjectsustainable structuresen
dc.subjectlow loss systemen
dc.subjectbase fixityen
dc.subject.anzsrcFields of Research::40 - Engineering::4005 - Civil engineering::400506 - Earthquake engineeringen
dc.subject.anzsrcFields of Research::40 - Engineering::4005 - Civil engineering::400510 - Structural engineeringen
dc.titleFeasibility of pinned-base connections for demountable precast frame building systemsen
dc.typeConference Contributions - Published
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