摘要
导管架平台遭受船舶撞击的事故,将造成严重的经济损失和环境污染。在结构设计中应当对平台圆形管柱结构的抗撞性能予以足够重视。在结构设计时,通过解析计算方法预报圆形管柱结构的抗撞性能,可以显著提高结构设计效率。在圆形管柱碰撞损伤机理研究的基础上,考虑圆形管柱遭受撞击时的整体弯曲变形,提出了一套预报圆形管柱抗撞性的解析计算方法;利用该方法,对圆形管柱结构遭受船舶侧向撞击场景下的管柱结构损伤、结构变形阻力,开展解析计算分析和预报。研究中采用落锤撞击圆形管柱试验,以及数值仿真方法,验证该解析计算方法的准确性,提高其在导管架平台结构设计中的适用性。
The collision between jacket platforms and bypassing ships may cause serious economic loss and environmental pollution. The anti-collision capability of the tubular steel members of jacket platforms is of great concern during structure design phase. By using the simplified analytical method to predict the anti-collision capability of tubular members, the efficiency of structure design can be significantly improved. In this paper, a simplified analytical method for the prediction of anti-collision capability of tubular members is proposed considering the global bending of tubular members subject to collision, based on the study of collision mechanism between tubular steel members and ships. Using this method, the structural deformation and resistance of the damaged tubular member can be calculated when the tubular steel members are subjected to accidental collisions. The method is verified by drop-weight test and numerical simulations, and is can be applied to the jacket platform structural design.
出处
《工程力学》
EI
CSCD
北大核心
2017年第7期249-256,共8页
Engineering Mechanics
基金
国家自然科学基金项目(51239007)
关键词
导管架平台
碰撞
圆形管柱
解析计算
落锤试验
数值仿真
jacket platform
collision
tubular member
analytical method
drop-weight test
numerical simulation
