请教各位老哥关于ABS MODU规范问题

diguatou

请教各位老哥关于ABS MODU规范问题。
ABS 规范里筋和梁的跨长 l 的取值问题：
l = length, in m (ft), between supports, where brackets are fitted at shell, deck or bulkhead supports, and the brackets are in accordance with 3-2-2/Table 2 and have a slope of approximately 45 degrees, the length l may be measured to a point on the bracket located at the distance from the toe equal to 25% of the length of the bracket.
这里都说了有关于端部带肘板的折减问题，图1是我理解后画的一个样子。图2是图纸里的梁，从上到下9m高，端部是圆弧过度的，这个 l 怎么取？