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DYNA
versão impressa ISSN 0012-7353
Resumo
GRACIANO, Carlos; CASANOVA, Euro e ZAPATA-MEDINA, David G.. Elastoplastic behavior of longitudinally stiffened girder webs subjected to patch loading and bending. Dyna rev.fac.nac.minas [online]. 2015, vol.82, n.189, pp.103-109. ISSN 0012-7353. https://doi.org/10.15446/dyna.v82n189.42222.
This paper is aimed at studying the elastoplastic behavior of longitudinally stiffened girder webs subjected to patch loading and bending. The investigation is carried out by means of nonlinear finite element analysis to study the structural behavior of the girder components (flanges, web and stiffener) at ultimate limit state. Initial geometrical imperfections, plastic material behavior and large deflection effects are considered in the model. For the numerical model validation, the computer results from the simulations are compared with experimental results taken from the literature. A parametric study was carried out in order to investigate the influence of the applied bending moment and the relative location of the stiffener on the ultimate strength to patch loading.
Palavras-chave : girders; structural stability; nonlinear finite elements; patch loading; bending; longitudinal stiffeners.