高桩码头异常靠泊有限元仿真模拟

Nonlinear finite element study on damage of high-pile wharf's abnormal berthing

船舶大型化、靠泊作业频繁、管理漏洞以及某些不可抗力因素造成异常靠泊事故时有发生。目前,码头在异常靠泊情况下的受力及位移特性尚不明确,损伤评估缺乏理论基础,为使现场检测更有针对性,利用ANSYS有限元结构分析软件建立了受损码头的数学模型,考虑了桩土间相互作用及橡胶护舷对碰撞的缓冲作用。将模型碰撞损伤结果与码头实际受损情况进行对比,简要分析了碰撞中部分结构受力极值的相对关系和位移情况。结果表明:在该碰撞实例条件下,模型运行基本可反映异常靠泊发生时高桩码头结构损伤情况。

Frequent ship berthing,management loopholes and some unpreventable factors make the accident of the berthing collision to happen quite often.At present,it is not clear that the force and displacement characteristics of the wharf under the abnormal berthing,making the lack of theoretical basis to damage assessment.A high-pile wharf nonlinear mathematical model is established in ANSYS finite element structural analysis software,in order to carry the test and inspection on-site out contrapuntally.The pile-soil interaction and the impact of rubber fender body buffer is taken into account while this thesis simplifies the structure and hierarchical foundations reasonably.The model results are compared with the actual wharf collision damage.The relative relationship of the extreme collision forces is analyzed briefly and the displacement is compared.The conclusions are got that the model can reflect the wharf damages in this collision case.