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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 56
ADVANCES IN CIVIL AND STRUCTURAL ENGINEERING COMPUTING FOR PRACTICE
Edited by: B.H.V. Topping
Paper VIII.2

A Damage Model for Seismic Retrofitting of Structures

R. Perera*, A. Carnicero+, E. Alarcon* and S. Gomez*

*Department of Structural Mechanics, Technical University of Madrid, Spain
+Department of Mechanical Engineering, University of Comillas, Madrid, Spain

Full Bibliographic Reference for this paper
R. Perera, A. Carnicero, E. Alarcon, S. Gomez, "A Damage Model for Seismic Retrofitting of Structures", in B.H.V. Topping, (Editor), "Advances in Civil and Structural Engineering Computing for Practice", Civil-Comp Press, Edinburgh, UK, pp 309-315, 1998. doi:10.4203/ccp.56.8.2
Abstract
Numerous damage models have been developed in order to analyse the seismic behavior. Among the different possibilities existing in the literature, it is very clear that models developed along the lines of Continuum Damage Mechanics are more consistent with the definition of damage like a phenomenon with mechanical consequences as they include explicitly the coupling between damage and mechanical behavior. On the other hand, for seismic processes, phenomena such as low cycle fatigue may have a pronounced effect on the overall behavior of the frames and, therefore, its consideration turns out to be very important. However, many of existing models evaluate the damage only as a function of the maximum amplitude of cyclic deformation without considering the number of cycles. In this paper, a generalization of the simplified model proposed by Flórez is made in order to include the low cycle fatigue. Such model employs in its formulation irreversible thermodynamics and internal state variable theory.

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