Tension Stiffening Analysis for Cyclically Loaded RC Beams

Abstract:

Ductility is an important aspect of cyclically loaded reinforced concrete (RC) structures. One of the method that can be used to measure the ductility of an RC structure is the moment-curvature approach. However, due to it being a strain-based approach it cannot be used to directly simulate behaviour associated with interface displacement that occur when an RC member is cracked. This leads to dependency on empirical values, which imposes limitations on how the moment-curvature approach can be used. In recent years a new displacement based method for measuring ductility has been developed, and can simulate the interface displacement behaviours through the use of partial-interaction theory and shear friction theory. This paper aims to extend the general tension stiffening analysis of the displacement-based approach to allow for cyclic loading. The tension-stiffening analysis was then validated against experimental results and the results were found to agree fairly.

• Periodical: Applied Mechanics and Materials (Volume 567)
• Pages: 517-521
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.567.517
• Online since: June 2014
• Authors: Ahmad Azim Bin Shukri*, Mohd Zamin Jumaat
• Keywords: Cyclic Loading, Ductility, Hinge, Partial Interaction, Shear Friction

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