Experimental and numerical study on the ultimate strength of stiffened plates subjected to combined biaxial compression and lateral loads
Experimental and numerical study on the ultimate strength of stiffened plates subjected to combined biaxial compression and lateral loads
复制标题
双轴压缩和横向联合载荷作用下加筋板极限强度的实验和数值研究
DOI：
10.1016/j.oceaneng.2021.108928
复制
发表时间：
2021-04-01
影响因子：
5
通讯作者：
Wang, Deyu
中科院分区：
文献类型：
--
作者：
Ma, Hongyang;Xiong, Qunfei;Wang, Deyu
加筋板在双向压缩和横向载荷联合作用下的极限强度还没有得到广泛的实验研究。本文通过试验和数值分析的方法研究了加筋板在双向压缩和侧向载荷联合作用下的极限强度和破坏行为。该试验装置为复合载荷试验提供了参考。用激光扫描技术测量了试件的初始变形，并在非线性有限元分析中考虑了初始变形。分析比较了两种破坏模式，研究了侧向荷载和横向荷载相互作用对极限承载力的影响。结果表明，在侧压力约束变形的情况下，侧压力的存在会提高构件的极限承载力。当横向荷载为主导荷载时，破坏模式为腹板局部屈曲和加劲肋弯扭屈曲的组合。
The ultimate strength of stiffened plates subjected to combined biaxial compression and lateral loads has not been widely investigated yet by experiments. In this study, both experimental and numerical analyses were performed to study the ultimate strength and collapse behaviors of stiffened plates under the combined biaxial compression and lateral loads. And the experimental set-up provides reference for combined loads experiments. The initial deformation of the experimental specimens has been measured by laser scanning technique and taken account in the nonlinear finite element analysis. Collapse modes have also been analyzed and compared, and influences of the interaction of lateral and transverse loads on the ultimate strength have been investigated. Results show that lateral pressure would enhance the ultimate load-carrying capacity when the lateral pressure restrained deformation. And the collapse mode was the combination of local web buckling and lateral-torsional buckling of stiffeners when transverse loads were dominant load components.