000018546 001__ 18546
000018546 005__ 20170118182227.0
000018546 04107 $$aeng
000018546 046__ $$k2017-01-09
000018546 100__ $$aChoudhury, Trishna
000018546 24500 $$aA Simplified Method for Seismic Vulnerability Assessment of RC Buildings With Open Ground Storey

000018546 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018546 260__ $$b
000018546 506__ $$arestricted
000018546 520__ $$2eng$$aRC buildings with open ground storey (OGS) are commonly constructed in many countries where the ground storey is left open (i.e., without infill walls) primarily for parking or business purposes. Such buildings have performed quite poorly even during moderate shakings in the past. The presence of infills only in the upper stories make them significantly stiffer as compared to the open ground storey. Thus, most of the lateral displacement of the building is concentrated in the ground storey itself with a very little relative lateral deformation of the upper stories. As a result, the OGS columns are not able to resist the high ductility demand imposed on them during earthquakes leading to severe damage or collapse of the entire building. This calls for a need to understand and qualify such building construction for seismic performance in earthquakeprone countries and classify them into groups based on its seismic vulnerability. As OGS frames are found to be most vulnerable building with any configurations, a parametric study was carried out with different number of bays and stories, and varying central opening sizes in infills of the frame. Seismic displacement demand of the frames is assessed based on ATC 40 performance assessment methodology. The results of seismic performance assessment were used to develop a simple numerical model for quick estimation of spectral displacement demand for OGS frames based on multiple variable linear regression for large building inventory including low to mid rise buildings. Further, the effectiveness of the developed regression model for spectral displacement demand estimation (and hence fragility assessment) was demonstrated using some examples.

000018546 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018546 653__ $$aReinforced Concrete buildings; Open Ground Storey; Nonlinear Analysis; Seismic Fragility, Vulnerability.

000018546 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018546 720__ $$aChoudhury, Trishna$$iKaushik, Hemant B.
000018546 8560_ $$ffischerc@itam.cas.cz
000018546 8564_ $$s867168$$uhttps://invenio.itam.cas.cz/record/18546/files/1684.pdf$$yOriginal version of the author's contribution as presented on USB, paper 1684.
000018546 962__ $$r16048
000018546 980__ $$aPAPER