Bayesian Probabilistic Framework for Damage Identification of Steel Truss Bridges under Joint Uncertainties
Table 3
Five competing model classes used for damage identification.
Model
Model description
M1
Simple spatial truss structure model with fully pinned/hinge joints
M2
Simple spatial truss structure model but with rigid joint connections
M3
The segment connecting truss members and joints steel ball are represented by zero-length elements in OpenSees. The rotational stiffness of the zero-length elements is set equal to Nm/rad
M4
The same model as model class 3 but with the rotational stiffness of Nm/rad
M5
The same model as model class 3 but with the rotational stiffness of Nm/rad