000019907 001__ 19907
000019907 005__ 20170118182343.0
000019907 04107 $$aeng
000019907 046__ $$k2017-01-09
000019907 100__ $$aMcclure, Ghyslaine
000019907 24500 $$aMeasuring the Dynamic Amplification Portion of Natural Torsion Based on the 3d-Sam Method and Sensing Tests

000019907 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019907 260__ $$b
000019907 506__ $$arestricted
000019907 520__ $$2eng$$a16 low to mid-rise irregular buildings located in Montreal, Canada have been tested under ambient vibrations and are analyzed with a novel three-dimensional seismic assessment method (3D-SAM) and software directly based on ambient vibration records. This method performs time-history analysis of the buildings based on their modal properties extracted from sensing tests and input earthquakes without creating a finite element model. Results of this analysis are response histories of resultant forces and twisting moments on each floor. With these results, the dynamic amplification portion of natural torsion of the dataset is calculated and discussed in the paper. The mean value and mean plus one standard deviation of the equivalent measured eccentricities that can represent the dynamic torque acting at the floor centre of mass were shown to be almost 12% and 18% of the plan dimension perpendicular to the direction of the seismic loading, respectively, for the whole database. The proposed methodology is appropriate for large scale assessments of existing buildings, and is applicable to any seismic region of the world. The authors suggest using the same procedure for other cities with different seismicity, to get an estimate range of the dynamic amplification portion of natural torsion of real buildings.

000019907 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019907 653__ $$a3D-SAM, ambient vibration tests, dynamic amplification portion of natural torsion, irregular buildings, torsion

000019907 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019907 720__ $$aMcclure, Ghyslaine$$iMirshafiei, Farshad
000019907 8560_ $$ffischerc@itam.cas.cz
000019907 8564_ $$s337771$$uhttps://invenio.itam.cas.cz/record/19907/files/4656.pdf$$yOriginal version of the author's contribution as presented on USB, paper 4656.
000019907 962__ $$r16048
000019907 980__ $$aPAPER