Seeking advice on the dimensions of the reinforcement plates for the spiral staircase in a pressure-free water tank
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I need help. I currently have a pressure-free water tank with a volume of 300 cubic meters and wall thickness of 6–8 mm. The spiral staircase in this tank was not designed with any reinforcement, but now the client requires that reinforcement plates be installed at all points where the staircase connects to the outer walls of the tank. Is it necessary to add such reinforcement? If so, what should be the appropriate size of the reinforcement plates? Thank you all!
You mean the shimming plate, right? Its size generally just needs to be larger than the cross-sectional size of the connecting element; there are no specific requirements. For example, in the case of angle steel, a width 20 mm greater than that of the angle steel will suffice.