Round flat plate reinforced with angle steel
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May I ask the senior: in the calculation of a circular plate reinforced with two flat angle steels, when determining the combined moment of inertia of the reinforcement and the plate, is it the moment of inertia of one angle steel and that of the entire plate? Two angle irons and the entire flat plate, or? Or the effective width portions of the angle steel and flat plates? But there is no calculation for the effective width either.
For the effective width of angle steel and flat plates, the calculation of this effective width can be referred to the calculations regarding reinforcement for flat covers in NB/T47003 (Pressure Vessels at Atmospheric Pressure).