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。
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...
出处
《石河子大学学报（自然科学版）》
CAS
2007年第3期357-360,共4页
Journal of Shihezi University(Natural Science)
关键词
船舶
桥梁
碰撞
非线性有限元仿真
结构损伤
ship
bridge
collision
simulation of nonlinear finite element
structural damage
