Advances in Civil Engineering

Research Article

Carbonation Characteristics and Bearing Capacity Attenuation of Loaded RC Beam Coupled with Chloride Erosion

Table 4

Ultimate load of flexural beams.


NO.		η (%)	F_max (kN)	ω_max (mm)	M_uc or M_u0 (kN·m)	M_r (%)	κ_b	d	d_r1	d_r2 (%)

SP4-0-40	CI-0	0	18.60	29.92	7.44	—	1	7.37	1	—
SP4-1-40	CI-1	2.7	18.02	29.15	7.21	−3.1	0.969	7.22	0.979	−2.0
SP4-2-40	CI-2	5.1	17.31	29.01	6.92	−7.0	0.931	6.94	0.942	−5.8
SP4-3-40	CI-3	7.3	17.10	29.68	6.84	−8.1	0.919	6.60	0.895	−10.4
SP4-0-50	CII-0	0	22.28	37.20	8.91	−	1	9.92	1	−
SP4-1-50	CII-1	1.8	21.81	34.87	8.72	−2.1	0.979	9.25	0.932	−6.8
SP4-2-50	CII-2	2.6	21.56	34.01	8.62	−3.3	0.968	8.25	0.831	−16.8
SP4-3-50	CII-3	3.9	21.29	37.12	8.52	−4.4	0.956	8.71	0.878	−12.2

Note. M_uc and M_u0 is the ultimate bending moment of the corroded flexural beam and the noncorroded flexural beam, respectively, and κ_b = M_uc/M_u0. F_max denotes the ultimate load. ω_max denotes ultimate deflection. d denotes ductility, d = f_u/f_y, f_u is the ultimate displacement, f_y is the yield displacement. d_r1 denotes the ductility ratio of corroded beams to noncorroded beams. d_r2 denotes the ductility change rate of the corroded beam relative to the noncorroded beam. M_r denotes the ultimate bending moment change rate of the corroded beam relative to the noncorroded beam.