Experimental evaluation of stiffened curved plates subjected to pure compression

9th International Symposium on Steel Bridges

材料科学;运输工程

Piculin, Sara^1 ; Sinur, Franc^1 ; Moe, Primo^1

University of Ljubljana, Faculty of Civil and Geodetic Engineering, Jamova 2, Ljubljana

1000, Slovenia^1

关键词: Different geometry;    Discrete points;    Displacement field;    Experimental evaluation;    Experimental test;    Initial geometric imperfection;    Initial imperfection;    Transverse stiffener;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/419/1/012043/pdf
DOI  :  10.1088/1757-899X/419/1/012043

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The paper deals with an extensive experimental study on five stiffened curved plates with different geometry and steel grade. The objective of the study is to analyse the behaviour of curved panels and their longitudinal and transverse stiffeners subjected to pure compression. Before testing, the initial geometric imperfections of the specimens were measured. They will be further used in the finite element model as initial geometry. During tests, the displacement field was measured with photogrammetry. In this paper, some results of the experimental tests are presented together with a study of the effects of different parameters on the element's resistance to pure compression. It is shown that the displacements provided by photogrammetry are in good agreement with those measured with LVDTs in discrete points. The ultimate force of the specimen made of higher steel grade does not differ significantly from other specimens. In addition, there is almost no difference in the resistance between plates with different aspect ratios. Initial imperfections and residual stresses play an important role in the prediction of the stiffened curved plate's response when subjected to pure compression.