Seeking advice on the design of circular flat covers with circumferential reinforcement ribs using bolted connections
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GB150-2011 introduces a flat cover design with circumferential reinforcing ribs, but the calculation model is based on a circular plate fixed at its perimeter; the \"Answers to Questions\" also state that this type of structure is generally not used for bolted flange flat covers； When used for bolted flange flat covers, the designer shall consider the appropriate analysis methods. Therefore, I would like to ask the experienced colleagues how to calculate the circular flat cover of a circumferential reinforcement member with additional bolt moments at its edges, without using Ansys analysis methods Thank you!
I checked the explanation for 150, where the bending moment is simplified by treating it as a concentrated force acting on the support rib, and then the bending moment MA at point A is calculated. In the case of bolted connections, could the bending moment generated by the bolt forces also be considered as acting on the rib, resulting in an MA’, from which a combined bending moment can be determined? My knowledge of mechanics of materials is quite poor; I basically had to hand all those concepts back to my teacher. So I’m asking everyone: how is the bending moment generated by bolt forces calculated, and how is the combined bending moment determined?