000019675 001__ 19675
000019675 005__ 20170118182331.0
000019675 04107 $$aeng
000019675 046__ $$k2017-01-09
000019675 100__ $$aGoswami, Rupen
000019675 24500 $$aEstimation of Story Stiffness in Multi-Storey Frame Buildings

000019675 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019675 260__ $$b
000019675 506__ $$arestricted
000019675 520__ $$2eng$$aPresence of stiffness irregularity, in conjuncture with strength irregularity, along building height leads to undesirable behavior during severe earthquake shaking, including localization of lateral deformations in select stories and initiation of storey collapse mechanism. Thus, seismic design codes recommend simple quantitative check using storey stiffness, to identify presence of stiffness irregularity along building height. This requires estimate of lateral stiffness of each storey along the height of the building, but the procedure to estimate the same is not specified in design codes. Consequently, in practice, several methods are used to estimate storey stiffness. In theory, there exists a unique value of stiffness of a given storey in a multi-storey building, but estimates using different methods give different results; the difference arise due to the inherent assumptions in the methods. Therefore, there is a need to compare and ascertain a method using which storey stiffness can be estimated with adequate accuracy. Storey stiffness estimates from seven available methods are compared, and their strengths and limitations discussed. A method involving use of fundamental natural mode of oscillation of structure seems to be most accurate, as it does not entails any simplifying assumption.

000019675 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019675 653__ $$aIrregularity; Mode; Soft Storey; Vertical; Code

000019675 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019675 720__ $$aGoswami, Rupen$$iMurty, Cvr$$iVijayanarayanan, Ar
000019675 8560_ $$ffischerc@itam.cas.cz
000019675 8564_ $$s353905$$uhttps://invenio.itam.cas.cz/record/19675/files/415.pdf$$yOriginal version of the author's contribution as presented on USB, paper 415.
000019675 962__ $$r16048
000019675 980__ $$aPAPER