Compression Performance and Calculation Method of Thin-Walled Prefabricated Steel Tube Lightweight Concrete Columns

Table 6

Comparison of calculated bearing capacity of codes.

Specimen no.	Ultimate bearing capacity in test (kN)	Design bearing capacity/ultimate bearing capacity
		AIJ-1997	GJB4142-2000	DBJB-51-2003	CECS159-2001	GB50936-2014
Z120-2.2-20	392.67	0.885	0.621	0.606	0.670	0.428
Z120-2.2-25	453.83	0.804	0.568	0.560	0.599	0.392
Z120-2.2-30	499.17	0.765	0.547	0.543	0.562	0.378
Z120-2.2-k.	291.67	0.959	—	—	—	—
Z120-3.0-20	503.50	0.809	0.553	0.549	0.621	0.380
Z120-3.0-25	514.81	0.823	0.565	0.568	0.623	0.388
Z120-3.0-30	556.67	0.790	0.548	0.556	0.591	0.377
Z120-3.0-k	403.17	0.848	—	—	—	—
Z200-2.2-20	819.00	0.645	0.483	0.459	0.529	0.218
Z200-2.2-25	838.83	0.681	0.516	0.494	0.547	0.235
Z200-2.2-30	855.01	0.719	0.552	0.531	0.567	0.254
Z200-2.2-k	316.00	1.128	—	—	—	—
Z200-3.0-20	843.33	0.773	0.563	0.540	0.646	0.253
Z200-3.0-25	916.00	0.757	0.557	0.539	0.622	0.253
Z200-3.0-30	936.67	0.785	0.585	0.569	0.635	0.268
Z200-3.0-k	436.10	1.114	—	—	—	—