An experimental analysis has been conducte d to assess the effectiven ess of an innovative sys- tem based on Steel Reinforced Polymer (SRP) laminates for the flexural strengthening of Reinforced Con- crete (RC) beams; such external re inforcement has been impregnated with either epoxy resin or cementitious mortar. Experimental performance of SRP strengthened members have been compared to those of beams ex- ternally bonded with comparable amounts of Carbon Fi ber Reinforced Polymer (CFRP). A summary of labo- ratory outcomes is herein offered focusing on the ultimat e behavior. Experimental re sults are used to assess the possibility of extending ACI 440.2R -02 recommendations to the case of SRP. A modified equation for the bond-dependent coefficient is proposed to account for the different bond be havior of the cementicious mortar.
Flexural strengthening of RC beams using Emerging Materials: ultimate behaviour / Prota, Andrea; Nanni, Antonio; Manfredi, Gaetano; Cosenza, Edoardo; Pecce, MARIA ROSARIA. - (2004), pp. 163-170. (Intervento presentato al convegno 2nd International Conference on FRP Composites in Civil Engineering tenutosi a Adelaide (Australia) nel 8-10 December 2004).
Flexural strengthening of RC beams using Emerging Materials: ultimate behaviour
PROTA, ANDREA;NANNI, ANTONIO;MANFREDI, GAETANO;COSENZA, EDOARDO;PECCE, MARIA ROSARIA
2004
Abstract
An experimental analysis has been conducte d to assess the effectiven ess of an innovative sys- tem based on Steel Reinforced Polymer (SRP) laminates for the flexural strengthening of Reinforced Con- crete (RC) beams; such external re inforcement has been impregnated with either epoxy resin or cementitious mortar. Experimental performance of SRP strengthened members have been compared to those of beams ex- ternally bonded with comparable amounts of Carbon Fi ber Reinforced Polymer (CFRP). A summary of labo- ratory outcomes is herein offered focusing on the ultimat e behavior. Experimental re sults are used to assess the possibility of extending ACI 440.2R -02 recommendations to the case of SRP. A modified equation for the bond-dependent coefficient is proposed to account for the different bond be havior of the cementicious mortar.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
