Abstract
The design of an overhead crane bridge with a double box girder has been investigated and a case study of a crane with 35 ton capacity and 13 m span length has been conducted. In the initial phase of the case study, conventional design calculations proposed by F. E. M. Rules and DIN standards were performed to verify the stress and deflection levels. The crane design was modeled using both solids and surfaces. Finite element meshes with 4-node tetrahedral and 4-node quadrilateral shell elements were generated from the solid and shell models, respectively. After a comparison of the finite element analyses, the conventional calculations and performance of the existing crane, the analysis with quadratic shell elements was found to give the most realistic results. As a result of this study, a design optimization method for an overhead crane is proposed.
Highlights
Cranes are the best way of providing a heavy lifting facility covering virtually the whole area of a building
Solid modeling of bridge structures and finite element analysis to find the displacements and stress values has been investigated by Demirsoy [17]
The overhead crane is supported by two rails and the runway girders installed in building
Summary
Cranes are the best way of providing a heavy lifting facility covering virtually the whole area of a building. The primary task of the overhead crane is to handle and transfer heavy payloads from one position to another They are used in areas such as automobile plants and shipyards [1, 2]. Solid modeling of bridge structures and finite element analysis to find the displacements and stress values has been investigated by Demirsoy [17]. Solid modeling techniques applied for road bridge structures, and an analysis of these structures using the finite element method are provided in [18]. Solid modeling of a crane bridge, the loading at different points on the bridge and application of the finite element method have been studied by Celiktas [19]. The boundary conditions are applied as in practice
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