Stress–strain model for FRCM confined concrete elements
2013
Trapko, Tomasz
A proposition of a stress–strain model for concrete confined by fibre reinforced cementitious matrix (FRCM) and carbon fibre reinforced polymer (CFRP) composites has been presented. The model has been developed based on proprietary experimental study of cylindrical short elements confined with FRCM and CFRP jackets. The finished model includes influences of the composite strengthening, ultimate stress, critical strain and ultimate strain. The model assumes the stress–strain relationship has twofold characteristics – non-linear at first, when the cross-section carries the load and then linear, when the cross-section stiffens and full composite action occurs. The proposed stress–strain model has been experimentally verified.
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