Research Article

Bridge Seismic Damage Assessment Model Applying Artificial Neural Networks and the Random Forest Algorithm

Table 1

Investigation of main seismic damage to the girder bridges and arch bridges.

Girder bridgeSuperstructure and bearingPlane displacement of the girder body, with or without girder falling, with or without potential risk of girder falling
Impact damage of joint bridges at expansion joints
Cracking of girder body, diaphragm, bridge deck, and hinge joint
Bearing damage, deformation, displacement, hanging in the air, and failure of seismic anchors
Damage of bridge deck pavement and displacement damage of expansion joint
SubstructureDamage and crack to coping, padstone blocks, etc.
Shearing, crushing, cracking, and tilting of the pier column
Impact damage, cracking of the platform, and destruction of the truncated cone slope of the abutment
Foundation displacement of piers and abutments
Accessory structure

Arch bridgeSuperstructureWhether the main and spandrel arch rings collapse, crack, dislocate, etc.
Whether the vertical and horizontal connection of each arch box and the transverse connection of the arch ribs are cracked
Whether the deck (girder) support of the girder type abdominal arch bridge is hanging in the air, displaced, and destroyed
Whether the bridge deck is levelling and whether there is settlement on the arch fill
Whether the side wall is cracked, extraversed, and displaced
Whether the spandrel arch and the cross wall collapse or crack
SubstructureWhether cracks, overturning, collapse, and settlement occur in piers, skewback, and abutments
Cracking of the front wall and side wall of the abutment, and whether the abutment body is deformed by the earthquake force
Whether the foundation has displacement
Accessory structure