Mitigation of seismic financial risk of reinforced concrete walls by using damage avoidance design (2007)
Type of ContentJournal Article
PublisherUniversity of Canterbury. Civil and Natural Resources Engineering
Seismic financial risk analyses of rocking precast prestressed reinforced concrete hollow-core walls designed using the Damage Avoidance Design (DAD) philosophy and code compliant ductile monolithic walls are performed based on the results of experimental investigation on seismic behaviour of wall specimens representing the two different systems. Incremental dynamic analyses (IDA) are performed on nonlinear computational models of the two prototype walls and experimental results are used to calibrate different damage states. Fragility curves are then developed for the two wall systems and the expected annual loss (EAL) is calculated based on a probabilistic financial risk assessment framework. The structural performance and financial implications of the two wall systems are compared. The study shows that it is the structurally acceptable minor to moderate damage that is responsible for a major share of the financial risk. Damage avoidance philosophy avoids these minor– moderate damage and hence reduces the financial risk greatly.
CitationKhare, R.K., Dhakal, R.P., Mander, J.B., Hamid, N.B.A., Maniyar, M.M. (2007) Mitigation of seismic financial risk of reinforced concrete walls by using damage avoidance design. ISET Journal of Earthquake Technology, 44(3-4), pp. 391-408.
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KeywordsWalls; Seismic risk; EAL (Expected Annual Loss); DAD (Damage Avoidance
ANZSRC Fields of Research40 - Engineering::4005 - Civil engineering::400510 - Structural engineering
40 - Engineering::4005 - Civil engineering::400502 - Civil geotechnical engineering
40 - Engineering::4005 - Civil engineering::400506 - Earthquake engineering
40 - Engineering::4005 - Civil engineering::400504 - Construction engineering
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