Study on the Impact Performance and Damage of Sandwich Energy Absorbing Structure Under Ship Collision for Protecting Bridge
According to the basic situation and anti-collision grade requirements of Wulongjiang Bridge,three types of anti-collision boxes were designed:stiffened plate,corrugated interlayer and corrugated interlayer filled with foam.The finite element model of ship,anti-collision structure and pier was es-tablished,and the dynamic process of ship impacting anti-collision structure was simulated by numeri-cal method.The impact force,structural deformation and energy absorption performance of three kinds of anti-collision boxes under ship impact were compared and analyzed.The results show that adding sandwich structure outside the steel box can obviously improve the energy absorption capacity and reduce the damage of the anti-collision structure.
shipbridgeimpactfinite element methodenergy absorbing structure
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