ボイラ平鏡板の強さ(その5) : 平鏡板に設けたマンホール補強フランジの高さ

抄録

Where a flat plate is flanged for strengthening it at a manhole, the total depth (h) of the flange is usually calculated as follows ; h=√(tW) or h=3t where t is the thickness of the plate in mm., and W is the minor axis of the hole in mm. The values calculated show much difference between them and "which is suitable has not been decided. In this paper, the writer has discussed theoretically that the depth of the flange is affected by the stresses and the deflection of the endplate and proved it by experiments.