Shaking Table Test Study on Seismic Performance of Hollow Rectangular Piers

Table 4

Detailed physical parameters of the specimen.

Specimen	Pier height (mm)	Axial compression ratio	Longitudinal reinforcement		Transverse reinforcement
			Diameter (mm)	Reinforcement ratio (%)	Diameter (mm)	Distance (mm)	Stirrup ratio (%)
M1	1440	0.1	8	2.7	4	50 (double)	4.0
M2	1440	0.1	8	2.7	4	50	2.0
M3	1440	0.1	8	2.7	3	70	0.81
M4	1440	0.1	8	2.7	3	130	0.44
M5	1440	0.1	6	1.5	3	130	0.44
M6	1440	0.05	8	2.7	3	70	0.81
M7	1440	0.05	8	2.7	3	130	0.44
M8	1440	0.05	6	1.5	3	130	0.44
M9	1440	0.05	6	1.5	3	70	0.81