000019036 001__ 19036
000019036 005__ 20170118182256.0
000019036 04107 $$aeng
000019036 046__ $$k2017-01-09
000019036 100__ $$aHwang, Kyung Ran
000019036 24500 $$aApplication of a New Methodology of Seismic Torsion Design To a Multi-Story Building Structure

000019036 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019036 260__ $$b
000019036 506__ $$arestricted
000019036 520__ $$2eng$$aAn experimental research using a 1:5 scale five-story reinforced concrete building model with the irregularities of a soft/weak story and torsion at the ground story revealed that the design eccentricity used in the general codes in itself cannot represent the critical torsional behaviors not only because the range of eccentricities at the peak responses in the time histories of drift and base shear exceeded the range of eccentricity predicted by the code, but also because under severe ground excitations even very small eccentricity does not necessary translate into a small but significantly large drift at the edge frame. To overcome this problem, instead of using the eccentricity as design parameter, a completely new methodology in the design or control of torsionally unbalanced building structures is proposed by defining the design torsional moment in a direct relationship with the shear force given as an ellipse with the maximum points in its principal axes located by the two adjacent torsion-dominant modal spectral values. In this paper, the proposed methodology is applied to the design of a torsionally unbalanced five-story RC building model. Linear and nonlinear time history analyses of the building model are carried out, and the torsional behaviors of the structure designed according to the proposed methodology are evaluated by comparing demand and supply in shear versus torsion relationships in each story.

000019036 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019036 653__ $$atorsion; irregularity; time history analysis

000019036 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019036 720__ $$aHwang, Kyung Ran$$iLee, Han Seon$$iAli, Abegaz Ruth
000019036 8560_ $$ffischerc@itam.cas.cz
000019036 8564_ $$s1947494$$uhttps://invenio.itam.cas.cz/record/19036/files/2729.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2729.
000019036 962__ $$r16048
000019036 980__ $$aPAPER