탄성지지 조건하에서 보강판의 유효폭애 관한 연구

초록

The effective breadth of a stiffened plate under bending is studied. The design parameter of effective breadth is used when we consider a stiffened plate subjected to lateral loading. Due to the lateral loads there is shear transmission through the plate from the stiffener which leads to a non-uniform longitudinal stress distribution across the plate width. The effective breadth considering shear lag can be calculated by the simple beam theory. For a tanker, the concept of traditional effective breadth has been available as longitudinal stiffeners are fixed at adjacent web frames. However, the effective breadth of each classification’s formula can’t apply to flexible support condition such as the Ro-Ro vessel. Effective breadth using the rules of several classification societies was compared and a way to get accurate analysis results was suggested.