In this study, a total of six full‐scale sandwich columns were fabricated, and experiments on their load transfer performance were conducted. The effects of steel fiber reinforcement and the ratio of the column width to the slab thickness on the effective compressive strength were theoretically analyzed, and briefly compared the test results of full‐ and reduced‐scale specimens. The current design codes do not take into account the ratio of the column width to the slab thickness when estimating the effective compressive strengths of slabs and columns with different compressive strengths. The test results conducted in this study, however, showed that the effective compressive strength tended to decrease with increasing slab thickness. In addition, the specimen reinforced with steel fibers in the column region exhibited a higher effective compressive strength than the specimen with steel fibers in the slab region.

中文翻译：

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具有不同抗压强度的全尺寸夹芯柱的轴向行为

在这项研究中，总共制造了六个全尺寸夹心柱，并进行了载荷转移性能的实验。从理论上分析了钢纤维增强和柱宽与板厚之比对有效抗压强度的影响，并简要比较了全尺寸和缩小尺寸试件的测试结果。当前的设计规范在估算不同抗压强度的板和柱的有效抗压强度时，并未考虑柱宽与板厚的比值。然而，在这项研究中进行的测试结果表明，有效抗压强度倾向于随着板厚的增加而降低。此外，