Experimental Study on Strain Penetration Effects in Fixed-End Rotation of RC Beam-Column Connections with High-Strength Reinforcement

Table 1

Reinforcement of the test specimens.

No.	Beam							Column
	Beam no.	Top ①	Tensile reinforcement ratios (%)	Stirrup ③	Stirrup ratios (%)	Anchorage type	la/lah (mm)	Longitudinal reinforcement ④	Stirrup ⑤
1	IA-400-C40-18	318	1.17	10@100	0.79	—	400	818	10@100
2	IA-600-C40-20	220	0.97	10@100	0.79	—	600	818	10@100
3	IA-800-C40-22	222	1.17	10@80	0.98	—	800	1018	10@100
4	IA-400-C50-18	318	1.17	10@100	0.79	—	400	818	10@100
5	IA-600-C50-20	320	1.45	10@100	0.79	—	600	818	10@100
6	IA-800-C50-22	222	1.17	10@80	0.98	—	800	1018	10@100
7	IA-400-C60-18	318	1.17	10@100	0.79	—	400	818	10@100
8	IA-600-C60-20	320	1.45	10@100	0.79	—	600	818	10@100
9	IA-800-C60-22	322	1.17	10@80	0.98	—	800	1018	10@100
10	IB-400-C40-18	318	1.17	10@100	0.79	—	400	818	10@100
11	IB-600-C40-20	220	0.97	10@100	0.79	—	600	818	10@100
12	IB-800-C40-22	222	1.17	10@80	0.98	—	800	1018	10@100
13	IB-400-C50-18	318	1.17	10@100	0.79	—	400	818	10@100
14	IB-600-C50-20	220	0.97	10@100	0.79	—	600	818	10@100
15	IB-800-C50-22	222	1.17	10@80	0.98	—	800	1018	10@100
16	IB-400-C60-18	318	1.17	10@100	0.79	—	400	818	10@100
17	IB-600-C60-20	320	1.45	10@100	0.79	—	600	818	10@100
18	IB-800-C60-22	222	1.17	10@80	0.98	—	800	1018	10@100
19	EA-430-C40-18	318	1.17	10@100	0.79	Straight	430	818	10@100
	EA-210-C40-22	222	1.17	10@100	0.79	Hooked	210	818
20	EA-330-C40-20	220	0.97	10@150	0.52	Hooked	330	818	10@100
	EA-190-C40-20	220	0.97	10@150	0.52	Headed	190	818
21	EA-380-C50-18	318	1.17	10@150	0.52	Straight	380	818	10@100
	EA-190-C50-22	222	1.17	10@150	0.52	Hooked	190	818
22	EA-300-C50-20	320	1.45	10@100	0.79	Hooked	300	818	10@80
	EA-420-C50-20	320	1.45	10@100	0.79	Straight	420	818
23	EA-350-C60-18	318	1.17	10@150	0.52	Straight	350	818	10@100
	EA-300-C60-22	222	1.17	10@150	0.52	Hooked	300	818
24	EA-270-C60-20	320	1.45	10@100	0.79	Headed	270	818	10@80
	EA-160-C60-20	320	1.45	10@100	0.79	Hooked	160	818
25	EB-420-C40-18	318	1.17	10@100	0.79	Straight	420	818	10@100
	EB-230-C40-22	222	1.17	10@100	0.79	Hooked	230	818
26	EB-380-C40-20	220	0.97	10@150	0.52	Hooked	380	818	10@100
	EB-220-C40-20	220	0.97	10@150	0.52	Headed	220	818
27	EB-420-C50-18	318	1.17	10@100	0.79	Straight	420	818	10@100
	EB-210-C50-22	222	1.17	10@100	0.79	Hooked	210	818
28	EB-340-C50-20	220	0.97	10@150	0.52	Hooked	340	818	10@100
	EB-420-C50-20	220	0.97	10@150	0.52	Straight	420	818
29	EB-400-C60-18	318	1.17	10@100	0.79	Straight	400	818	10@100
	EB-340-C60-22	222	1.17	10@150	0.52	Hooked	340	818
30	EB-310-C60-20	320	1.45	10@80	0.98	Headed	310	818	10@80
	EB-180-C60-20	320	1.45	10@80	0.98	Hooked	180	818

This table should be read in conjunction with Figure 1. The bottom longitudinal reinforcements in all the cantilever beams were denoted by ②, as shown in the cross section A-A in Figure 1. Two HRB400 steel bars with a diameter of 10 mm were used as ② steel bars. The top and bottom longitudinal reinforcements in all the bottom beams of the specimens were denoted by ⑥, as shown in the cross section C-C in Figure 1. Three HRB400 steel bars with a diameter of 18 mm were used as ⑥ steel bars. The transverse reinforcement in all the bottom beams of the specimens were denoted by ⑦, as shown in the cross section C-C in Figure 1. HPB300 steel bars with a diameter of 10 mm were used as ⑦ steel bars with a spacing of 100 mm. , , , and , respectively, indicate reinforcement grades of HPB300, HRB400, HRB500, and HRB600. 210 bars ② were used as the bottom longitudinal reinforcements in all the cantilever beams. In the bottom beams of the specimens, 318 bars ⑥ were used as the top and bottom longitudinal reinforcements and 10 bars with a spacing of 100 mm ⑦ were used as the transverse reinforcement.