Analysis of Cumulative Damage Characteristics of Long Spiral Belled Pile under Horizontal Cyclic Loading at Sea
Table 4
Failure statistics of three pile types.
Number
Destruction description
Maximum bending moment position
Maximum bending moment (kN·m)
ZZ1
Fracture at 0.24 m, obvious crack at 0.36 m, and slight crack at 0.43 m.
0.4 m
0.38
ZZ2
Multiple cracks appeared at the position of 0.1 m–0.4 m pile body.
0.6 m
0.33
KZ1
At 0.9 m, the concrete was obviously broken, the steel bar yielded, and a large crack appeared at the connection position of the enlarged head, and the crack appeared at the location at a depth of 0.38 m.
0.6 m
0.58
LK1
An obvious crack appeared at 0.45 m, and no damage occurred at other positions of the pile body.
0.6 m
0.48
LK2
Two cracks appeared at 0.32 m and 0.45 m, and the connection between the expanding head and the pile body was fractured.
0.6 m
0.48
LK3
At 0.25 m, the concrete fracture occurred obviously, the steel bar yield, and the pile body appeared an obvious crack at 0.6 m.
