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|Title:||Simplified models for assessment and optimal redesign of irregular planar frames|
|Authors:||VARUM Humberto; PINTO VIEIRA Artur; COSTA Anibal; VILA REAL Paulo|
|Citation:||ENGINEERING STRUCTURES vol. 42 no. September 2012 p. 245-257|
|Publisher:||ELSEVIER SCI LTD|
|Type:||Articles in Journals|
|Abstract:||This paper presents a simplified methodology for predicting the response of buildings irregular in elevation, based on the non-linear dynamic multi-modal spectral seismic response of an equivalent simplified MDOF linear system. Making use of the MDOF model, it is also proposed a methodology for the optimum strengthening design of buildings, based on convex approximation methods. Three structural upgrading optimization problems (SUOPs) are implemented. The proposed models are validated against the results of a series of PsD tests carried out on a full-scale four-storey RC structure, representative of the construction practice in southern Mediterranean countries in Europe until the late 1960s.|
|JRC Institute:||Institute for the Protection and Security of the Citizen|
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