Experimental Study on the Damage of Bridge Pier under the Impact of Rockfall

Table 1

Experimental materials of the model column.

Category	Type	Material	Size (mm)	Quantity
Model frame	(1) Model column	PVC plastic dam-U315	R = 300; H = 2500	3
	(2) Base	Steel and wood	870 × 870 × 370 (length × width × height)	—
	(3) Reserved holes	PVC plastic dam–U75	L = 800	4
Reinforcement	(1) Column longitudinal reinforcement	HPB300	10C8	3.15 m × 10 pieces × 3 groups
	(2) Column transverse reinforcement	CRB550	A4	45 m
	(3) Reinforcement of the base	HRB335	C16	90 m
	(4) Hoisting construction	HRB335	B22	18 m
Concrete	(1) Cement	325# portland cement	--	1.48 m^3, 658 kg/m^3
	(2) Sand	Medium (coarse) sand	--	1.48 m^3, 743 kg/m^3
	(3) Gravel	Fine gravel	--	1.48 m^3, 1809 kg/m^3