The results indicate that different anchoring arrangements result in different baseplate behaviour. Finally, a theoretical approach is developed to determine the moment capacity and stiffness of the baseplate system.
The validated numerical method is also utilized for evaluation of three new types of baseplates which are different in anchoring configuration. Then, a numerical simulation is performed and verified using the experimental test results. First, the experimental results on three types of baseplates under monotonic lateral load and six different axial compression loads are presented. Hence, this study aims to present the results of an experimental, numerical and theoretical investigation on baseplate connections of storage racks with six different anchoring configurations under various axial loads. The moment-rotation characteristic of a baseplate connection in cold-formed steel rack systems significantly depends on the floor anchoring arrangement and the axial compression of the uprights. The respective numerical results were verified against experimental ones. In this study, a three-dimensional, nonlinear finite element model is developed through the use of the general-purpose finite element software package ABAQUS. Furthermore, this paper suggests a simple and suitable approach to analyse base plate connections independent of loading scenarios, the number of anchor rods and their arrangement, taking into account the actual rigidity of the connection. In the present paper, the results of a finite element study of single-headed anchors under tension are discussed, leading to the derivation of a simple equation that describes the stiffness of the headed anchor rod embedded in concrete.
The lack of suitability arises from their development for non-practical column base plate idealised configurations. Such complex connections are regularly found in engineering practice, in spite of proposed, up-to-date finite element modelling techniques and analytical formulations being unsuitable.
The analysis of column base plate connections under biaxial moment or when large numbers of anchor rods are utilised is complicated.
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