Seismic Analysis of Reinforced Concrete Frame Buildings Using Interface Modeling
Publication: Journal of Structural Engineering
Volume 130, Issue 8
Abstract
For efficient seismic computational analysis of reinforced concrete frame structures, a concentrated nonlinearity approach using interface elements is proposed. In the proposed model, the nonlinear response of frame structures is concentrated in hinge regions using interface elements. The interface elements as well as embedded reinforcement elements are assigned constitutive models based on concrete and steel stress–strain response. Two damage lengths, one for concrete (the hinge length) and one for steel (the bondslip length) as well as reduced initial stiffness are the additional parameters needed for the models. The remaining portions of the structure were modeled using elastic elements. Based on the simulation results, it is concluded that this model can generally be used for efficient reasonably accurate seismic analysis of a reinforced concrete frame structure.
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Information
Published In
Journal of Structural Engineering
Volume 130 • Issue 8 • August 2004
Pages: 1157 - 1168
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Jan 18, 2002
Accepted: Feb 23, 2004
Published online: Jul 15, 2004
Published in print: Aug 2004
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