Shear resistance of longitudinally stiffened panels - Part 1: Tests and numerical analysis of imperfections

被引:32
作者
Pavlovcic, Luka
Detzel, Annette
Kuhlmann, Ulrike
Beg, Darko
机构
[1] Univ Ljubljana, Fac Civil & Geodet Engn, Ljubljana 1000, Slovenia
[2] Univ Stuttgart, Inst Struct Design, D-70569 Stuttgart, Germany
关键词
plate girders; tests; shear loading; longitudinal stiffeners; stiffened panels; buckling behaviour; initial geometric imperfections;
D O I
10.1016/j.jcsr.2006.05.008
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
This paper deals with the results of four full-scale tests, numerical simulation of tests and initial geometric imperfection analysis for longitudinally stiffened panels in shear. The tests examine the influence of varying position and bending stiffness of one trapezoidal longitudinal stiffener on the panel shear resistance and its buckling behaviour. The stiffeners were designed such as to obtain both global and local buckling shapes. Numerical simulations (FEA), based on the test girder geometry, the measured initial geometric imperfections and elastic-plastic material characteristic from the tensile tests, demonstrate a very good agreement with the tests. The initial geometric imperfection study on different verified numerical models shows a limited sensitivity of the panel shear capacity to any kind of imperfection shape variation with amplitude at the allowable fabrication tolerances. Finally, the paper offers some ideas for modelling geometric imperfections with regard to the design or research demands. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:337 / 350
页数:14
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