Novel Crashworthy Device for Pier Protection from Barge Impact

Figure 13

Impact force time histories on the bridge pier for the whole impact process (a), for the first 0.10 s of impact process (b) corresponding to different yielding strengths of beam steel and the reduction ratio of maximum impact force versus yielding strength of beam steel (c). , without the device; ,  = 250.0 MPa; ,  = 350.0 MPa; ,  = 450.0 MPa.

(a)

(b)

(c)