Full-scale test and load-bearing capacity evaluation of synthetic-polymer-fiber-reinforced concrete tetrapods under quasi-static loadingUnuk, Žiga (Avtor) Kuhta, Milan (Avtor) tetrapodsconcretesynthetic-polymer fibersload testsload-bearing capacityresidual load-bearing capacityload displacementcalculationThis paper studies the load-bearing capacity of various concrete tetrapods under quasistatic loading. The tetrapods were made of plain concrete and synthetic-polymer-fiber-reinforced concrete. Load tests of the tetrapods were performed. The maximum load-bearing capacity and the residual-load-bearing capacity of the tetrapods (the load-bearing capacity after the first crack or at different crack widths) were evaluated. The strength and residual-strength values were backcalculated from the load-bearing capacities, and compared with available data from the literature. The specimens with and without fibers achieved similar maximum load-bearing capacities, with cracks occurring at identical locations. However, the differences in residual-load-bearing capacity were more significant. The synthetic-polymer-fiber-reinforced concrete tetrapods exhibited relatively high residual-load-bearing capacities, even at higher displacements and crack widths. Two different calculation-procedures were used for the load-bearing-capacity evaluation. A load-displacement calculation based on the moment-versus-curvature relation and the plastic-hinge approach was performed, and additionally proved the applicability of the employed calculation-procedures for the concrete tetrapod load-bearing-capacity evaluation.MDPI20222025-03-12 08:04:34Članek v reviji92026UDK: 691:625.843COBISS_ID: 133529091DOI: 10.3390/buildings12122143ISSN pri članku: 2075-5309sl© 2022 by the authors