Experimental Study of Composite Members in Spatial Grid Structure Subjected to Ultralow-Cyclic Axial Force

Table 3

Loading systems for specimens.

Group ID	Test ID	Loading system
S24	S24-I-1/2/3	I
	S24-II-1/2/3	II
	S24-III-1/2/3	III
	S24-IV-1/2/3	IV
	S24-V-1/2/3	V
	S24-VI-1/2/3	VII
S27	S27-I-1/2/3	I
	S27-II-1/2/3	II
	S27-III-1/2/3	III
	S27-IV-1/2/3	IV
	S27-V-1/2/3	V
	S27-VI-1/2/3	VII
S30	S30-I-1/2/3	I
	S30-II-1/2/3	II
	S30-III-1/2/3	III
	S30-IV-1/2/3	IV
	S30-V-1/2/3	V
	S30-VI-1/2/3	VII

Note. The last part of the test ID is the number of repetitions of the test.