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Title:
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Lateral behavior of concrete under uniaxial compressive cyclic loading
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Author:
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Osorio Bustamante, Edison; Bairán García, Jesús Miguel; Marí Bernat, Antonio Ricardo
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria de la Construcció; Universitat Politècnica de Catalunya. TE - Tecnologia d'Estructures |
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Abstract:
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In reinforced concrete structures under
seismic loading, concrete is subjected to compressive cyclic stress. Although cyclic stress–strain response has been described before, the cyclic behavior of strains in the direction orthogonal to loading has not
been characterized yet. Such behavior can be of great importance for evaluating the efficiency of the confinement under cyclic loading. For this purpose an experimental program on cylindrical specimens of concrete strength from 35 to 80 MPa subjected to
uniaxial cyclic compression was carried out. Stress versus longitudinal and lateral strains curves have been obtained both for the hardening and softening branches under monotonic and cyclic loading. Governing
parameters of the lateral behavior are identified and correlated to describe the response of the lateral strain. Additionally, an analytical model to obtain the lateral deformations of concrete under cyclic uniaxial compression has been formulated and verified experimentally.
Finally, some examples are presented in
order to illustrate the applicability of the proposed model and its possible incorporation into a 3D constitutive cyclic model. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Edificació::Elements constructius d'edificis::Elements estructurals d'edificis
-Concrete construction -- Earthquake effects
-Ciment -- Resistència de materials |
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Rights:
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Document type:
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Article - Published version
Article |
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