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

Table 2

Features table of the girder bridge and the arch bridge (L is the length of the bridge [35]).

Features	Classification
	Girder bridge	Arch bridge
Structural types	Simply supported girder bridge	Masonry arch bridge
	Continuous girder bridge (girder bridge of steel construction)	Steel arch bridge
	Cantilever girder bridge	Combined arch bridge
Bridge pier types	No pier	Masonry solid pier
	Masonry solid pier
	Bent pier	Other types of piers
	Rectangular thin-wall pier
	Single column pier	No pier
	Other types of piers
Foundation types	Shallow foundation
	Deep foundation
Bearing types	Laminated rubber bearings
	Basin rubber bearings
	Tetrafluoroethylene bearings
	Other types of bearing
	No bearing
Bridge linear	Linear orthogonal bridge (curve bridge with large curve radius)
	Curve orthogonal bridge
	Skew bridge
Bridge scales	Small bridge (8 ≤ L ≤ 30)
	Medium bridge (30 < L < 100)
	Large bridge (100 ≤ L ≤ 100)
	Super large bridges (L > 1000)
The type of site soil	I
	II
	III
	IV
Seismic precautionary intensity (degree)	VI
	VII
	VIII
	IX
	VI
	VII
	VIII
Practical intensity (degree)	IX
	X
	XI