Izvorni znanstveni članak
Numerical simulation of ultra-strength concrete-filled steel columns
Zhishuo Yang
Yezhi Zhang
Mingxia Chen
Guocan Chen
Sažetak
Researches into the constitutive relation of the super high strength and high performance concrete and the stress strain relationship of the ultra-strength concrete-filled steel columns are rare. Therefore, this paper based on continuous mechanics presents the relationship of mathematical description to the concrete deformation behaviors. The compressive behaviors of steel-reinforced super high-strength concrete columns under axial loading were studied with a series of experiments. Two specimens with concrete strengths ranging from 130,1MPa to 137,3MPa and with 121mm circular hollow stub columns with wall thicknesses of 5 mm were manufactured. At the same time, a three dimensional non-linear FE analysis of axial compression was conducted using the finite element program ABAQUS/Standard solver. The numerical results were validated through comparison with experimental data in terms of axial loading and deformation modes.
Ključne riječi
numerical simulation; vector method; concrete-filled tube; ultra-high strength confinement, axial compression
Hrčak ID:
111110
URI
Datum izdavanja:
25.11.2013.
Posjeta: 2.488 *