盐雾预腐蚀对<strong>HRB400E</strong>抗震钢筋超低周疲劳性能的影响

盐雾预腐蚀对HRB400E抗震钢筋超低周疲劳性能的影响

谌理飞, 罗云蓉, 张应迁, 李辉, 李秀兰, 廖文丽

Effect of Pre-corrosion by Salt Spray on Extremely Low Cycle Fatigue Performance of HRB400E Seismic Steel Bar

CHEN Lifei, LUO Yunrong, ZHANG Yingqian, LI Hui, LI Xiulan, LIAO Wenli

表4 ELCF参数

Table 4 ELCF parameters

Corrosion time/d	$ε_{f}^{'}$	c	$σ_{f}^{'}$ /MPa	b	$k'$ /MPa	$n'$
0	0.2	-0.5	6200	-0.14	1024	0.18
30	0.22	-0.5	4400	-0.084	990	0.18
60	0.132	-0.4	4000	-0.08	1198	0.22
90	0.12	-0.37	3184	-0.037	1189	0.24