TY - GEN
T1 - Comparison of flat slab strengthening techniques against punching-shear
AU - Lapi, Massimo
AU - Martini, Daniele
AU - Zagli, Emilio
AU - Orlando, Maurizio
AU - Ramos, Antonio
AU - Spinelli, Paolo
N1 - sem pdf
PY - 2016
Y1 - 2016
N2 - Punching-shear capacity of slab-column connections in existing R/C structures may be inadequate to bear design loads, so strengthening works are required. The lack of punching resistance may be due to detailing, design or building errors; in other cases, such lack is due to a change of use, which requires an increase of resistance. Different techniques have been developed for strengthening R/C slabs against punching: enlargement of the support, gluing external fibre reinforced polymers or casting a bonded concrete overlay (BCO) on the slab's top surface, insertion of post-installed steel bolts, application of fibre reinforced polymers cords as shear reinforcement. In the paper, the authors apply the Critical Shear Crack Theory (CSCT) to all of these techniques and evaluate their efficacy with reference to a case study.
AB - Punching-shear capacity of slab-column connections in existing R/C structures may be inadequate to bear design loads, so strengthening works are required. The lack of punching resistance may be due to detailing, design or building errors; in other cases, such lack is due to a change of use, which requires an increase of resistance. Different techniques have been developed for strengthening R/C slabs against punching: enlargement of the support, gluing external fibre reinforced polymers or casting a bonded concrete overlay (BCO) on the slab's top surface, insertion of post-installed steel bolts, application of fibre reinforced polymers cords as shear reinforcement. In the paper, the authors apply the Critical Shear Crack Theory (CSCT) to all of these techniques and evaluate their efficacy with reference to a case study.
UR - https://www.researchgate.net/publication/308892674_Comparison_of_flat_slab_strengthening_techniques_against_punching-shear
M3 - Conference contribution
BT - The New Boundaries of Structural Concrete 2016, NBSC2016
PB - Italy ACI Chapter
CY - Capri
ER -