Using accidental eccentricity in code-specified static and dynamic analyses of buildings

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dc.catalogadorpva
dc.contributor.authorLlera Martin, Juan Carlos de la
dc.contributor.authorChopra, Anil K.
dc.date.accessioned2023-01-16T18:58:06Z
dc.date.available2023-01-16T18:58:06Z
dc.date.issued1994
dc.description.abstractThe differences between the increase in building response due to accidental eccentricity predicted by code-specified static and dynamic analyses are studied for symmetric and unsymmetric single and multistorey buildings. The increase in response computed from static analysis of the building is obtained by applying the equivalent static forces at distance ea, equal to the storey accidental eccentricity, from the centre of mass at each floor. Alternatively, this increase in response is computed by dynamic analysis of the building with the centre of mass of each floor shifted through a distance ea from its nominal position. A parametric study is performed on single-storey systems in order to evaluate the differences in response predicted by both analysis procedures. It is shown that these results are essentially the same as the ones obtained for a special class of multistorey systems. Upper and lower bounds for the differences in response computed from static and dynamic analyses are obtained for general multistorey systems. These differences in response depend primarily on the ratio of the fundamental torsional and lateral frequencies of the building. They are larger for small values of the frequency ratio and decrease to zero as the frequency ratio becomes large. Further, these discrepancies are in many cases of the same order as the code-intended increase in response due to accidental eccentricity. This implies that the code-specified static and dynamic analyses to account for accidental torsion should be modified to be mutually consistent.
dc.fechaingreso.objetodigital2023-01-16
dc.format.extent20 páginas
dc.fuente.origenSIPA
dc.identifier.doi10.1002/eqe.4290230903
dc.identifier.urihttps://doi.org/10.1002/eqe.4290230903
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/66351
dc.information.autorucEscuela de ingeniería ; Llera Martin, Juan Carlos de la ; 0000-0002-9064-0938 ; 53086
dc.issue.numero9
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final967
dc.pagina.inicio947
dc.revistaEarthquake Engineering & Structural Dynamicses_ES
dc.rightsacceso restringido
dc.rights.holderThe Author(s)
dc.subject.ddc620
dc.subject.deweyIngenieríaes_ES
dc.titleUsing accidental eccentricity in code-specified static and dynamic analyses of buildingses_ES
dc.typeartículo
dc.volumen23
sipa.codpersvinculados53086
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