TY - JOUR
T1 - Finite element analysis of long-span rail-cum-road cable-stayed bridge subjected to ship collision
AU - Pu, Qianhui
AU - Liu, Jingwen
AU - Gou, Hongye
AU - Bao, Yi
AU - Xie, Hongwei
N1 - Publisher Copyright:
© The Author(s) 2019.
PY - 2019/8/1
Y1 - 2019/8/1
N2 - Ship collision is rare, yet it leads to serious consequences once it occurs, in particular for long-span bridges. This study investigates dynamic responses of a long-span, rail-cum-road cable-stayed bridge under ship collision through finite element analysis. Three ship tonnages were investigated, which are 3000, 5000, and 8000 t, respectively. The displacement, velocity, and acceleration of the bridge under ship collision are analyzed. The collision process is simulated in two explicit steps to improve the computational efficiency. First, the collision force is determined through a collision simulation of the ship to a rigid body that simulates the massive bridge pier. The collision force is then applied to the bridge to analyze the dynamic responses of the bridge. The simulation results of the collision force are compared with four different design codes. Analysis results from different codes show significant discrepancies, demonstrating lack of reliability of the formula recommended by the codes. The results indicate that the maximum displacement and acceleration occur at the top of the bridge pylon. The bridge’s responses under ship collision decrease as the collision angle increases from 0° to 20°.
AB - Ship collision is rare, yet it leads to serious consequences once it occurs, in particular for long-span bridges. This study investigates dynamic responses of a long-span, rail-cum-road cable-stayed bridge under ship collision through finite element analysis. Three ship tonnages were investigated, which are 3000, 5000, and 8000 t, respectively. The displacement, velocity, and acceleration of the bridge under ship collision are analyzed. The collision process is simulated in two explicit steps to improve the computational efficiency. First, the collision force is determined through a collision simulation of the ship to a rigid body that simulates the massive bridge pier. The collision force is then applied to the bridge to analyze the dynamic responses of the bridge. The simulation results of the collision force are compared with four different design codes. Analysis results from different codes show significant discrepancies, demonstrating lack of reliability of the formula recommended by the codes. The results indicate that the maximum displacement and acceleration occur at the top of the bridge pylon. The bridge’s responses under ship collision decrease as the collision angle increases from 0° to 20°.
KW - collision angle
KW - dynamic response
KW - finite element method
KW - long-span bridge
KW - rail-cum-road bridge
KW - ship collision
UR - http://www.scopus.com/inward/record.url?scp=85065437667&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85065437667&partnerID=8YFLogxK
U2 - 10.1177/1369433219846953
DO - 10.1177/1369433219846953
M3 - Article
AN - SCOPUS:85065437667
SN - 1369-4332
VL - 22
SP - 2530
EP - 2542
JO - Advances in Structural Engineering
JF - Advances in Structural Engineering
IS - 11
ER -