Simplified models for assessment and optimal redesign of irregular planar frames

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.

VARUM Humberto;  PINTO VIEIRA Artur;  COSTA Anibal;  VILA REAL Paulo; 

2012-06-29

ELSEVIER SCI LTD

JRC72105

0141-0296,   

http://www.sciencedirect.com/science/article/pii/S0141029612002283,    https://publications.jrc.ec.europa.eu/repository/handle/JRC72105,   

10.1016/j.engstruct.2012.04.033,