SRC	steel reinforced concrete
SRHC	steel reinforced high strength concrete
n	axial compression ratio
λ	shear span ratio
pv	stirrup ratio
ps	steel content
fy	yield strength of steel and rebar
fu	ultimate strength of steel and rebar
p, Δ	lateral load and corresponding displacement, respectively
pcr, Δcr	crack load and corresponding displacement, respectively
py, Δy	yield load and corresponding displacement, respectively
pm, Δm	maximum load and corresponding displacement, respectively
pu, Δu	ultimate load and corresponding displacement, respectively
μΔ	ductility factor
he	equivalent viscous damping coefficient