当前位置: 首页 > 文章 > 船桥碰撞中桥梁的力学机理及损伤分析 石河子大学学报(自然科学版) 2007,25 (3) 357-360
Position: Home > Articles > Mechanism of Plastic and Damage of Bridge During Ship Bridge Collision Journal of Shihezi University(Natural Science) 2007,25 (3) 357-360

船桥碰撞中桥梁的力学机理及损伤分析

作  者:
范彬;何栋梁;成彦惠
单  位:
湖南城市学院
关键词:
船舶;桥梁;碰撞;非线性有限元仿真;结构损伤
摘  要:
船桥碰撞事故时,船舷对桥墩的冲击力以及由此引起桥墩、墩柱和桩基的动态变形,可以通过大型非线性动态响应分析程序MSC-Dytran有限元数值仿真全程再现。以一艘4万t载重量球鼻船艏与某长江大桥桥梁碰撞为例,演示了数值仿真计算的过程,获得并分析了船桥碰撞力、能量转换以及桩基、承台和塔柱的冲击响应的一般规律和特点,可为桥梁设计、维护和损伤评估等提供理论依据。
译  名:
Mechanism of Plastic and Damage of Bridge During Ship Bridge Collision
作  者:
FAN Bin,HE Dong-liang,CHENG Yan-hui (Hunan City College,Yiyang,Hunan 413000,China)
关键词:
ship;bridge;collision;simulation of nonlinear finite element;structural damage
摘  要:
The dynamic deformation and inner stress distribution of pier column,pile cap,piles caused by impact force during ship-bridge collision can be simulated by employing nonlinear dynamic finite element program.The simulation was carried out by MSC-Dytran,a three-dimeninal analytical code for analyzing the dynamic,nonlinear behavior of the structure.The whole process of the normal collision between the bulbous bow of a 40000t DWT oil ship and a bridge across the Yangtze River is simulated and presented.The ship bridge force,collision energy exchange,the displacement response and inner stress distribution of bridge pier are described.Some mechanic characters during ship bridge collision process are presented which are of great value for bridge design,maintenance and damage estimation.

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