Axial Compressive Behavior of Outer Square Inner Circular Spontaneous Combustion Coal Gangue Concrete-Filled Double-Skin Steel Tubular Stub Column
Jinli Wang, Chunyuan Wang, Zhe Gao et al. · 2024 · Buildings
Utilizing crushed spontaneous combustion coal gangue as a coarse aggregate in concrete preparation effectively reduces reliance on natural resources and mitigates environmental pollution; however, the suboptimal workability of spontaneous combustion coal gangue coarse aggregate concrete (SCG-CAC) limits its engineering applications. To address this issue, this study places SCGCAC at the center of a CFDST (Concrete-Filled Double-Skin Steel Tubular) stub column. Through finite element modeling validated for reliability, this study examines the structural mechanical response to axial loading, alo
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