Experimental and Finite Element Study on 7A04 Aluminum Alloy Tube Confined High Strength Concrete Long Column

Table 7

Comparison of bearing capacity reduction factor calculated under axial compression with test and formula calculation values.

Serial number	L/D	(MPa)	(MPa)
1	10	45.41	400	0.867	0.899	0.964
2	13	45.41	400	0.783	0.800	0.979
3	16	45.41	400	0.681	0.647	1.053
4	6	40.13	400	0.969	0.963	1.006
5	8	40.13	400	0.929	0.937	0.992
6	10	40.13	400	0.835	0.897	0.931
7	13	40.13	400	0.751	0.796	0.944
8	16	40.13	400	0.687	0.641	1.071
9	18	40.13	400	0.591	0.539	1.097
10	20	40.13	400	0.491	0.453	1.085
11	23	40.13	400	0.400	0.353	1.133
12	25	40.13	400	0.328	0.303	1.083
Mean value						1.028
Standard deviation						0.064
Coefficient of variation						0.062

is the bearing capacity reduction factor obtained from the test, is the reduction coefficient of bearing capacity calculated by the formula, and is the axial compression strength of concrete.