Accounting for residual deformation and simple approaches to their mitigation
| dc.contributor.author | Pettinga, J.D. | |
| dc.contributor.author | Pampanin, Stefano | |
| dc.contributor.author | Christopoulos, C. | |
| dc.contributor.author | Priestley, M.J.N. | |
| dc.date.accessioned | 2007-07-12T22:51:05Z | |
| dc.date.available | 2007-07-12T22:51:05Z | |
| dc.date.issued | 2006 | en |
| dc.description | in oral section of abstracts book | en |
| dc.description.abstract | Recent developments in performance-based seismic design and assessment approaches have emphasised the importance of properly assessing and limiting the residual (permanent) deformations, typically sustained by a structure after a seismic event, even when designed according to current code provisions. Recent investigations have led to a proposed Direct Displacement-Based Design (DDBD) approach which includes an explicit consideration of the expected residual deformations accounting for 2-dimensional and MDOF effects. Having estimated the possible residual deformations in a structure, it remains to implement specific design features to reduce them to an acceptable level. Previous studies have identified post-yield stiffness as being critical to residual deformation behaviour, therefore a series of simple approaches are proposed to increase this element and system parameter. These methods do not utilise re-centring post-tensioned technology. First, the effects of changes in material stress-strain behaviour and section design in the primary seismic-resisting system are considered, and then the design and introduction of a secondary elastic frame to act in parallel with the primary system is demonstrated. Using moment-curvature and non-linear time-history analyses, the proposed approaches are shown to be effective at achieving their intended goal of residual deformation reduction. | en |
| dc.identifier.citation | Pettinga, D., Pampanin, S., Christopoulos, C., Priestley, N. (2006) Accounting for residual deformation and simple approaches to their mitigation. Geneva, Switzerland: First European Conference on Earthquake Engineering and Seismology (ECEES), 3-8 Sep 2006. Paper 343. | en |
| dc.identifier.uri | http://hdl.handle.net/10092/188 | |
| dc.language.iso | en | |
| dc.publisher | University of Canterbury. Civil Engineering. | en |
| dc.rights.uri | https://hdl.handle.net/10092/17651 | en |
| dc.subject.marsden | Fields of Research::290000 Engineering and Technology::290800 Civil Engineering::290801 Structural engineering | en |
| dc.title | Accounting for residual deformation and simple approaches to their mitigation | en |
| dc.type | Conference Contributions - Published |
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