000010932 001__ 10932
000010932 005__ 20141205155818.0
000010932 04107 $$aeng
000010932 046__ $$k2008-10-12
000010932 100__ $$aMcCormick, Jason P.
000010932 24500 $$aPermissible Residual Deformation Levels for Building Structures Considering Both Safety and Human Elements

000010932 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010932 260__ $$b
000010932 506__ $$arestricted
000010932 520__ $$2eng$$aA review of permissible residual deformation levels is undertaken in light of the increased interest in performance-based seismic design and self-centering systems. Permissible residual deformation levels are considered based on functionality, construction tolerances, and safety. Values are defined based on a review of past structural engineering research, post-earthquake reconnaissance, current building codes, and research in the field of psychology. The findings show that there are only a limited number of studies that measured residual drift levels of structures after an earthquake and correlated these to actual damage levels. In general, construction tolerances remain at or below 0.003 rad depending on the type of structural system and material being considered. This value is below the residual drift levels at which non-structural systems start to lose functionality. Research in the field of psychology has also shown that the lower limit at which people can sense an inclination is approximately 0.005 rad above which extended periods of inclination can cause headaches and dizziness. In order to verify these findings and provide further quantitative results, floor inclinations and column tilt of an occupied 40 year old structure are investigated. These results combined with those obtained through the extensive literature review suggest that 0.005 rad is an important engineering index in terms of permissible residual deformation levels.

000010932 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010932 653__ $$aResidual deformation, inclination, tilt, performance-based design, self-centering

000010932 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010932 720__ $$aMcCormick, Jason P.$$iAburano, Hiroshi$$iIkenaga, Masahiro$$iNakashima, Masayoshi
000010932 8560_ $$ffischerc@itam.cas.cz
000010932 8564_ $$s468548$$uhttps://invenio.itam.cas.cz/record/10932/files/05-06-0071.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-06-0071.
000010932 962__ $$r9324
000010932 980__ $$aPAPER