首页|Hexagonal, hollow and perforated concrete units reinforced with GFRP bars: Experimental and FEM analysis
Hexagonal, hollow and perforated concrete units reinforced with GFRP bars: Experimental and FEM analysis
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NETL
NSTL
Elsevier
Preserving coastal areas is crucial due to their high population density and economic significance. This study introduces SEAHIVE®, an innovative approach to optimizing man-made coastal protection structures. SEA-HIVE® consists of hexagonal, hollow, and perforated concrete units reinforced with glass fiber-reinforced polymer (GFRP) bars to enhance energy dissipation, structural capacity, and habitat preservation. Experimental tests and finite element model (FEM) analyses were conducted to evaluate performance under transverse compression and flexure. In transverse compression tests, initial cracking occurred at 73-79 kN loads, with ultimate failure loads reaching 143-179 kN. Flexural tests revealed initial cracking at 156 kN, with ultimate loads of 222-250 kN, limited by inadequate reinforcement anchorage and toe crushing. FEM results closely matched experimental data, with compressive capacities predicted at 178 kN and flexural capacities at 261 kN. The study highlights SEAHIVE®'s potential for sustainable coastal protection while identifying areas for design improvement, including enhanced reinforcement detailing and optimized fabrication methods. Additionally, a parametric study was conducted using FEM to evaluate the effects of perforation size, reinforcement ratio, and concrete compressive strength on the structural capacity and crack propagation behavior of SEAHIVE® units, providing insights for optimizing design parameters.
NETL
NSTL
Elsevier
