桥墩抗船撞击性能研究  

Study on the anticollision property of the bridge pier against ship

作　　者：何振星[1] 余澎 姚小虎[3] 树学锋[4] 韩强[3] 

机构地区：[1]广东省公路管理局,广州510075 [2]郁南公路局,广东云浮527100 [3]华南理工大学交通学院,广州510640 [4]太原理工大学应用力学研究所,太原030024

出　　处：《广东公路交通》2007年第4期4-9,13,共7页Guangdong Highway Communications

摘　　要：桥梁在船舶碰撞时受到的动力载荷和响应是复杂的动力非线性问题。首先阐述了船桥碰撞常用的研究方法,同时简要介绍了数值模拟方法的基本原理。用非线性有限元程序LS-DANA对一艘5万t实船与桥梁的碰撞过程进行了仿真分析,研究了有、无防撞装置对桥梁冲击性能的影响,结果表明柔性防撞装置既能保护桥墩又保护了船的安全,计算结果为工程设计提供了有价值的数据。The study on the dynamic load applied to the bridge pier and its response during the process of ship - bridge collision is a complicated dynamic nonlinear problem. In this paper, the common research methods on ship - bridge collision are expounded firstly. The basic principles of numerical simulation method are recommended briefly. The collision process of the bridge collided by a 50,000 tons weigh ship is simulated using the nonlinear finite element software LS - DYNA. The effect of the anticollision device on the dynamic property of the bridge is analyzed. It is shown that the flexible anticollision device can protect the bridge pier and safeguard the ship at the same time. The valuable data are supplied for the engineering design.

关 键 词：船桥碰撞 冲击动力学 数值模拟 

分 类 号：U441[建筑科学—桥梁与隧道工程]