Near-Fault Response and Loading Protocols of Box Columns in Steel Frames with Self-Centering Braces to Provide Recentering Capability

Table 5

Data of the axial loading protocols (C3 column).

15-Story	P/Py	NF1	NF2	NF3	NF4	NF5	NF6	NF7	NF8	NF9	NF10	NF11	Avg	SD	Avg + SD
Zone A	0%–5%	0.5	0	0.5	1	0.5	0	0	2	0.5	4	0.5	0.86	1.19	2.05
	5%–10%	0	0	0	0	0	0	0	0.5	2	0	1	0.32	0.64	0.96
	10%–15%	0	0	0	2	0.5	0.5	0	0	0	0	1	0.36	0.64	1.00
	15%–20%	0	1.5	0	0.5	1	0	1	0	1	0	0	0.45	0.57	1.02
	20%–25%	2.5	2.5	0	1	0	1	1	0	0.5	0	0	0.77	0.96	1.73
	25%–30%	2	0.5	1.5	0.5	0.5	2	2	0.5	0	0	0	0.86	0.84	1.70
	30%–35%	0	0	0.5	0	0	2.5	1	0	0	0	0	0.36	0.78	1.14
	35%–40%	0	0	0	0	0	0	0	0	0	0	0	0.00	0.00	0.00
	40%–45%	0	0	0	0	0	0	0	0	0	0	0	0.00	0.00	0.00
Zone C	0%–5%	1	1.5	1.5	1	0.5	0	0	1.5	0.5	0.5	1.5	0.86	0.60	1.46
	5%–10%	0.5	2.5	1.5	0	1.5	1.5	0	1.5	0	2	3.5	1.32	1.12	2.44
	10%–15%	1	3	2	2	2	2.5	0	1	2	3	2	1.86	0.90	2.76
	15%–20%	3.5	1.5	1.5	0.5	4	2.5	4	2.5	1.5	4	3.5	2.64	1.25	3.88
	20%–25%	1.5	1.5	2	2.5	2	3.5	5	0.5	0	0.5	0	1.73	1.54	3.27
	25%–30%	1.5	0	0	1	1	0	1.5	0	0	0	0	0.45	0.65	1.10
	30%–35%	0	0	0	0.5	0	0	0	0	0	0	0	0.05	0.15	0.20
	35%–40%	0	0	0	0	0	0	0	0	0	0	0	0.00	0.00	0.00
	40%–45%	0	0	0	0	0	0	0	0	0	0	0	0.00	0.00	0.00
Zone B	Peak (%)	−30.89	−26.56	−34.41	−34.64	−29.10	−28.57	−29.68	−34.29	−30.46	−27.39	−33.00	−30.82	2.89	−33.71
	Valley (%)	30.47	24.81	28.87	33.06	33.06	29.17	34.21	27.83	32.77	25.53	33.81	30.33	3.33	33.66