Finite element modeling for composite plate girders containing web openings

In the present paper, nonlinear finite-element analyses (FEA) have been conducted for investigating the conduct of simply supported composite steel-concrete plate girder having web opening subjected to static loading. Five Steel Concrete Composite Plate Girder samples have been taken for the verification. One of such girders was regarded as a control girder, which possesses no web openings. Two girders have a square opening and contain a circular web opening, correspondingly. And, the other two girders have reinforced openings. ANSYS software (version 19.3) has been employed for analyzing the 3D model. Results of the present work were validated with an experimental work from the literature. The validation was achieved through the comparison of Load-Deflection curves, and the modes of failure were obtained from the finite element (FE) model with that of Experimental. These specimens were analyzed to validate their competence and effectiveness. The comparison between the Load-Deflection curves resulted from the FE model with those of investigational evinced a good agreement. The results manifested that the ratio of the numerical maximum load strength to the experimental maximum load strength for the first control girder 93%, when the composite girders containing square and circular openings in web the ratio 88% & 92% respectively. While for the composite strengthening openings girders the ratio were 89%, and 92% respectively.