Dynamic Response of Bridge-Ship Collision Considering Pile-Soil Interaction

Abstract

According to most countries' norms, and to find the effect of the bridge collision the equivalent static method was designed for bridge-ship collision, ignoring the dynamic effects of shocks. It is sharply different from actual situation. So based on the theory of Winkler foundation, shearing strain theory of Timoshenko and potential energy variation functional principle of Hamilton, the simulation models of bridge piers was built considering the pile-soil interaction. Lateral transient vibration equation of bridge piers was concluded. Based on the theory of integral transform, the differential equation of the collision system and the boundary conditions were transformed with Laplace transformation; the analytical solution of the stress wave in frequency domain was concluded. And then the inversion of solution in frequency domain was carried out using Matlab based on the Crump inverse transformation. Finally the dynamic response law of displacement, normal stress and the shear stress of bridge piers were obtained.

State-of-the-Art Review on Responses of RC Structures Subjected to Lateral Impact Loads

“…The significant effects of the different boundary conditions of impacted bridges at the top affected by the inertia of overlaying superstructures [54,66] and at the bottom surrounded by soil layer [53,61,64,[116][117][118][119] were explored in the literature. The substantial influences of bridge superstructure on the impact responses and failure behaviors of the impacted pier especially on the location of plastic hinge formed in the pier columns were concluded by Gholipour et al [52].…”

Finite element analysis of long-span rail-cum-road cable-stayed bridge subjected to ship collision

“…Yuan and Harik (2008) studied the time history response of the collision force between bridge pier and ship, and different pier geometries were considered. Gholipour et al (2018) and Aziz et al (2017) studied the effects of soil–pile interaction on the responses of bridges subjected to barge collision. The finite element analyses in the literature greatly advance the understanding of ship–pier collision forces.…”