RESEARCH ON THE SHIP IMPACT FORCE BASED ON YACHENGWAN BRIDGE
Based on the Yachengwan Extra Large Bridge,a full bridge member system model is established using Midas to calculate the reaction force of the upper structure on the main pier section.Combined with the simulation analysis software LS-DYNA,a DWT3000t ship impact analysis model for the main tower cap of the Yachengwan Ex-tra Large Bridge is established.The impact force calculation results are compared with the results of empirical formu-las.Based on the established finite element analysis model of ship collision bridge,the collision angle between the ship and the pier is adjusted.The results indicate that the ship's impact force decreaseswith the increase of included angle α,and the peak impact force decreases at a faster rate.Based on simulation analysis results,active collision warning signs and passive ship collision prevention facilities with rubber fenders are added to the Yachengwan Extra Large Bridge,effectively enhancing the safety of the bridge structure,and passing ships.
full bridge member system modelfinite element analysis modelimpact forceimpact anglerubber fenders
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