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

Table 8

Comparison about the most serious failure condition.

Specimen	Falling height (m)	Hitting speed (m/s)	Impact energy (J)	Column top displacement (mm)	Maximum impact force (kN)	The number of concrete spalling grids
S4.1-4	4	8.85	2195.2	35.3	247.92	44
S8.3-4	4	8.85	2195.2	48.5	165.29	43
S2.1-4	4	8.85	2195.2	82.5	123.96	37