In the elastic response of building the uncertainties, due to the sources of accidental torsion, are taken into account in building codes introducing the so-called accidental eccentricity. This eccentricity can mathematically be expressed as a modification of the mass matrix. In the framework of the response spectrum analysis (RSA) each mass modification, due to the accidental eccentricity, requires new analyses that could be numerically cumbersome. A new combination rule, here called Interval Complete Quadratic Combination (ICQC), is proposed to obtain in closed form the maximum responses of structures with mass modification with a single RSA, without solving
Response spectrum analysis of multi-storey building with accidental eccentricity
MUSCOLINO, Giuseppe Alfredo;VERSACI, CLAUDIA
2012-01-01
Abstract
In the elastic response of building the uncertainties, due to the sources of accidental torsion, are taken into account in building codes introducing the so-called accidental eccentricity. This eccentricity can mathematically be expressed as a modification of the mass matrix. In the framework of the response spectrum analysis (RSA) each mass modification, due to the accidental eccentricity, requires new analyses that could be numerically cumbersome. A new combination rule, here called Interval Complete Quadratic Combination (ICQC), is proposed to obtain in closed form the maximum responses of structures with mass modification with a single RSA, without solvingPubblicazioni consigliate
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