Seismic Behavior of RC Bridge Piers Locally Replaced with SFRC-FA Subjected to Torsion Combined with Axial Compression

Table 8

Ductility coefficient of specimens.

Specimen		θy (10^−3 rad)	Ty (kN·m)	θ85 (10^−3 rad)	85% ± Tmax (kN·m)	β85	θ75 (10^−3 rad)	75% ± Tmax (kN·m)	β75
C1	Negative	−6.8	−40.0	−11.8	−47.0	1.7	−14.4	−41.5	2.1
	Positive	3.7	30.1	11.8	29.4	3.2	12.1	25.9	3.3
SF1	Negative	−4.6	−53.9	−20.9	−50.4	4.6	−25.3	−44.5	5.5
	Positive	4.8	49.8	6.4	47.5	1.3	14.1	41.9	2.9
SF2	Negative	−4.6	−59.3	−8.4	−53.2	1.8	−15.7	−47.0	3.4
	Positive	5.9	56.2	9.5	51.1	1.6	11.7	45.1	2.0
SF3	Negative	−4.9	−55.1	−15.1	−53.1	3.1	−16.0	−46.8	3.3
	Positive	5.3	51.4	7.2	49.1	1.4	10.9	43.3	2.1
SF4	Negative	−5.2	−54.9	−15.6	−50.8	3.0	−18.9	−44.8	3.6
	Positive	5.8	55.0	7.6	51.6	1.3	10.2	45.6	1.8
SF5	Negative	−3.4	−61.3	−9.8	−53.3	2.8	−13.0	−47.0	3.8
	Positive	5.8	52.4	11.1	48.3	1.9	12.0	42.6	2.1