基于船撞桥墩有限元数值仿真分析  被引量:3

Finite Element Numerical Simulation Analysis Based on Ship Collision with Pier

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作  者:吴琼[1] 刘令令 邓超[1] 温永华[1] WU Qiong;LIU Ling-ling;DENG Chao;WEN Yong-hua(Jiangxi Vocational and Technical College of Communications,Nanchang 330013,China)

机构地区:[1]江西交通职业技术学院,南昌市330013

出  处:《北方交通》2020年第9期1-5,9,共6页Northern Communications

基  金:江西省教育厅科技青年基金项目(GJJ161398)。

摘  要:以赣江某跨桥梁为研究对象,利用有限元软件ANSYS进行船桥碰撞建模分析,研究船舶以不同的速度及质量撞击桥墩的动态响应。结果表明:桥墩的被撞区和桥墩底部属于危险区域,在该区域内应力在极短的时间内迅速增大,而船舶的最大应力发生在碰撞区和船艏拐角处,尤其是船艏碰撞处迅速产生巨大的变形;随着船舶航行速度及载重量的不断增大,撞击力增长的速度、最大值以及船舶和桥墩的应力均明显增大,但不成线性或倍数增加。In this paper,a bridge across the Ganjiang River is taken as the research object.The finite element software ANSYS is used to model and analyze the ship bridge collision,and the dynamic response of the ship impacting the pier with different speed and mass is studied.The results show that the collision area and the bottom of the pier are dangerous areas,in which the internal stress increases rapidly in a very short period of time,while the maximum stress of the ship occurs in the collision area and the bow corner,especially the bow collision,which rapidly produces huge deformation;with the increase of the ship's speed and load,the speed and the maximum value of the collision force increase,as well as the ship and the the stress of bridge pier increases obviously,but not linearly or multiple.

关 键 词:船桥碰撞 撞击力 航行速度 载重量 

分 类 号:U443.22[建筑科学—桥梁与隧道工程]

 

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