Experimental Study on Ultrahigh Strength Concrete Filled Steel Tube Short Columns under Axial Load

Table 4

Specimen properties and test results.

Group	Specimen	/mm	/%	/MPa	/MPa		/kN	/mm	/mm
S1	S1-1		14.67%	84.2	349	0.608	2205	2.04	6.01	2.94
	S1-2		14.67%	84.2	349	0.608	2245	2.00	6.30	3.15
	S1-3		14.67%	84.2	349	0.608	2254	1.94	5.85	3.02
S2	S2-1		20.02%	84.2	427	1.015	3112	/
	S2-2		20.02%	84.2	427	1.015	3187
	S2-3		20.02%	84.2	427	1.015	3193
S3	S3-1		21.98%	84.2	352	0.919	5988	/
	S3-2		21.98%	84.2	352	0.919	5906
	S3-3		21.98%	84.2	352	0.919	6010