大跨度双层甲板在轴压载荷下的稳定性研究
Stability Study of Long-span Double-deck Under Axial Compression Load
崔海鑫 1万琪 1郭珊珊 2郭开岭 3孙坤 2朱凌3
作者信息
- 1. 中国船舶及海洋工程设计研究院 上海 200011
- 2. 武汉理工大学船海与能源动力工程学院 武汉 430063
- 3. 武汉理工大学船海与能源动力工程学院 武汉 430063;武汉理工大学威海研究院 威海 264309
- 折叠
摘要
针对大跨度双层甲板缩尺模型设计并开展了单轴压缩试验,分析了缩尺模型的极限承载力以及结构的崩溃特性.计及初始缺陷的影响建立数值仿真模型,将试验结果与仿真结果进行对比,分析了双层甲板模型在轴压载荷作用下的稳定性及极限承载特性.结果表明:文中研究的双层甲板缩尺模型的失效模式主要是板格屈曲变形,仿真计算得到的模型应力分布情况与试验测量的结果也基本吻合.
Abstract
A uniaxial compression test was designed and carried out for a large-span double deck scale model,and the ultimate bearing capacity of the scale model and the collapse characteristics of the structure were analyzed.Considering the influence of initial defects,a numerical simulation model was established,and the stability and ultimate bearing characteristics of the double deck model under axial compression load were analyzed by comparing the test results with the simulation results.The results show that the failure mode of the double deck scale model studied in this paper is mainly plate buckling deformation,and the stress distribution of the model obtained by simulation calculation is basically consistent with the experimental measurement results.
关键词
大跨度双层甲板/稳定性/极限强度/轴压试验/数值仿真Key words
long-span double-deck/stability/ultimate strength/axial compression test/numerical simulation引用本文复制引用
出版年
2024
NETL
NSTL
万方数据