Axial Compression Behavior of Recycled Concrete Filled Steel Tubular Short Columns after High Temperature

Table 1

Specific parameters of each specimen in the test.

Data sources	Test piece	D/(mm)	t/(mm)	L/(mm)	R/(%)	T/(°C)	f y/(MPa)	f cu/(MPa)	N ue/(kN)	N 1/(kN)	N 1 /N ue
Paper test	S-R4-20	150	3	450	100	20	358	38.25	1580.54	1640.15	1.022
	S-R4-300	150	3	450	100	300	358	38.25	1682.25	1644.01	0.977
	S-R4-600	150	3	450	100	600	358	38.25	1374.97	1396.87	1.016