Seismic Vulnerability Evaluation of a Three-Span Continuous Beam Railway Bridge

Table 3

Distribution characteristics and distribution parameters of the bridge model.

Parameter	Distribution pattern	Distribution parameter	Unit
C55 concrete compressive strength	Normal distribution	N	MPa
C35 concrete compressive strength	Normal distribution	N	MPa
HRB335 rebar strength	Lognormal distribution	LN	MPa
Bearing initial stiffness scaling factor	Uniform distribution	U
Concrete density	Uniform distribution	U	Kg⋅m^−3
Secondary dead load scaling factor	Uniform distribution	U
Pile translational stiffness scaling factor	Uniform distribution	U
Pile rotational stiffness scaling factor	Uniform distribution	U