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Título del libro: 9th Us National And 10th Canadian Conference On Earthquake Engineering 2010, Including Papers From The 4th International Tsunami Symposium
Título del capítulo: Energy-based damage index and cyclic drift capacity for steel structures

Autores UNAM:
SONIA ELDA RUIZ GOMEZ;

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Autores externos:

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Idioma:
Inglés

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Año de publicación:
2010

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Palabras clave:

Complex structure; Damage control; Damage index; Damage model; Drift capacity; Experimental testing; Ground motions; Hazard curves; Height distribution; Interstory drifts; Long duration; Mexico City; Multi-degree-of-freedom; Performance parameters; Reinforced concrete member; Steel frame; Steel framed structure; Steel members; Structural evaluation; Building codes; Civil engineering; Damage detection; Engineering geology; Plastic deformation; Reinforced concrete; Seismic design; Steel structures; Steel testing; Tsunamis; Structural analysis

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Resumen:

Although several studies have been devoted to calibrate damage indices for steel and reinforced concrete members with the purpose of overcoming some of the shortcomings of the parameters currently used during seismic design; there is a challenge to study and calibrate the use of such indices for the practical structural evaluation of complex structures. This paper introduces an energy-based damage model for multi-degree-of-freedom (MDOF) steel framed structures that accounts explicitly for the effects of cumulative plastic deformation demands. The model has been developed by complementing the results obtained from experimental testing of steel members and those derived from analytical studies regarding the height distribution of plastic demands on several steel frames designed according to Mexico City Building Code (MCBC). Through the development of hazard curves, the limitations of the maximum inter-story drift demand as a performance parameter to achieve adequate damage control are discussed. The concept of cyclic drift capacity, which incorporates information of the influence of cumulative plastic deformation demands, is introduced as an alternative for seismic design of structures subjected to long duration ground motions.

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Entidades citadas de la UNAM:

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Fuente:


ISBN:
9781617388446
Editorial:

Tipo de producto:
Conference Paper