A valid approach for the limit analysis of existing masonry buildings in seismic areas concerns the application of single or combined kinematic models involving the equilibrium of structural macro-elements. These can be more reliable in describing the real structural behaviour than common equivalent static procedures, based on the “box” behaviour of the structure and on the elasto-plastic behaviour of the masonry. Based on the results reported in Part 1, that presented a critical review of the reliability of the structural models and of the effectiveness of repair techniques applied in past decades, analytical procedures able to interpret the mechanisms included in the abacus of typical damage are proposed. The main results of the vulnerability analyses carried out on urban centres characterized by different typologies of buildings, suffering different levels of damage, are discussed. Structural assessment is also performed, by simulating intervention proposals in order to evaluate the seismic improvement.

Multilevel Approach to the Vulnerability Analysis of Historic Buildings in Seismic Areas Part 2: Analytical Interpretation of Mechanisms for Vulnerability Analysis and Structural Improvement

VALLUZZI, MARIA ROSA
;
MUNARI, MARCO;MODENA, CLAUDIO;
2007

Abstract

A valid approach for the limit analysis of existing masonry buildings in seismic areas concerns the application of single or combined kinematic models involving the equilibrium of structural macro-elements. These can be more reliable in describing the real structural behaviour than common equivalent static procedures, based on the “box” behaviour of the structure and on the elasto-plastic behaviour of the masonry. Based on the results reported in Part 1, that presented a critical review of the reliability of the structural models and of the effectiveness of repair techniques applied in past decades, analytical procedures able to interpret the mechanisms included in the abacus of typical damage are proposed. The main results of the vulnerability analyses carried out on urban centres characterized by different typologies of buildings, suffering different levels of damage, are discussed. Structural assessment is also performed, by simulating intervention proposals in order to evaluate the seismic improvement.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/2465694
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