Research on Whole-Process Tensile Behavior of Headed Studs in Steel–Concrete Composite Structures

International Journal of Concrete Structures and Materials

Table 2 Test results (Unit: kN).

No	N_u	Failure pattern	No	N_u	Failure pattern	No	N_u	Failure pattern
1	137	C-BS	12	96	SC-BS	23	196	GC-B
2	138	C-BS	13	108	SC-BS	24	229	GC-B
3	136	C-BS	14	68	SC-BS	25	229	GC-B
4	179	C-BS	15	96	SC-BS	26	252	GC-B
5	178	C-BS	16	98	SC-BS	27	290	C-U
6	137	C-BS	17	129	SC-BS	28	280	C-U
7	64	C-B	18	141	SC-BS	29	240	GC-B
8	74	C-B	19	121	SC-BS	30	345	GC-B
9	113	C-B	20	142	SC-BS	31	231	GC-B
10	124	C-B	21	128	SC-BS	32	400	C-U
11	91	SC-BS	22	113	SC-BS	33	460	C-U

N_u represents the ultimate strength of the anchorage concrete; “C-BS” means the concrete breakout-split failure; “C-B” means the concrete breakout failure; “SC-BS” means the side-concrete breakout failure-split failure; “GC-B” means the group-concrete breakout failure; “C-U” means the concrete upper layer uplift failure.