LIGHTWEIGHT HOLE WHICH IMPROVES FATIGUE STRENGTH OF BULKHEAD

摘要

Disclosed is a lightweight hole which improves the fatigue strength of a bulkhead. When the lightweight hole is formed in any one among bulkheads for forming a ballast tank, the top and bottom arc parts of the lightweight hole are formed to have vertical asymmetrical sizes. Thus, the present invention copes with fatigue strength by increasing the cross section of the bulkheads around the bottom end of the lightweight hole while enabling people to pass, and reinforces the whole supporting force of the bulkheads where the lightweight hole is formed.;COPYRIGHT KIPO 2016