凌汛期冰排与桥墩碰撞过程的数值模拟

Numerical Simulation of Collision Process between Ice Floe and Pier during the Melting Ice Flood Season

凌汛期产生的冰排在水流或者风力作用下会对桥墩产生碰撞挤压作用,为了研究冰排对桥墩碰撞产生的影响,运用ANSYS/LS-DYNA软件模拟冰排与桥墩碰撞相互作用过程,分析了在碰撞过程中冰排的破坏规律,提取了碰撞力时程曲线以及桥墩位移、速度时程曲线,并对其进行了分析,计算结果对日后考虑冰荷载对桥墩设计具有一定的参考价值.

In ice flood period,the ice discharge will cause the impact and crushing of piers under the influence of water flow or wind force. In order to study the impact of ice discharge on the pier collisions,the interaction between ice discharge and piers is simulated by ANSYS/LS-DYNA software. During the collision,the damage rules of the ice row were extracted,and the time history curve of the impact force and the displacement and velocity curves of the bridge pier were extracted and analyzed. The calculation results have certain reference value for the future design of the bridge pier considering the ice load.