Numerical and experimental investigations on energy absorption enhancement mechanism of 3D-HSWM reinforced concrete

Le résumé fourni par la source

Three-dimensional high-strength steel-wire-mesh (3D-HSWM) reinforced concrete is an innovative material that substitutes traditional low to medium strength planar steel wire mesh sheet with 3D-HSWM, demonstrating superior ductility and crack control capability. However, research into its energy absorption characteristics remains insufficient, significantly limiting its further application in extreme scenarios. Combining the numerical simulation and orthogonal exploration, the enhancement mechanism and key factors affecting the energy absorption capability of 3D-HSWM reinforced concrete slab are quantitatively analyzed in this study. The results indicate that the energy absorption capability of 3D-HSWM reinforced concrete slab significantly outperforms that of traditional low to medium strength planar steel wire mesh sheet. The enhancement effect stems from the synergistic coupling of three dimensional woven structure effect and the steel wire strength enhancement effect, with three dimensional woven structure effect being predominant when incorporating the high performance concrete. The aspect ratio of wire mesh and the compressive strength of concrete are key factors influencing energy absorption capability. Considering both performance and cost, it is recommended to select 3D-HSWM reinforced concrete slab with aspect ratio of wire mesh ranging from 0.8 to 1.0 and material utilization factor ranging from 0.045 to 0.085.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.