3.1.1 In
addition to cases where direct calculations are required by Pt 3, Ch 1, 2.1 General 2.1.1, LR will consider alternative
scantlings for pontoon structures which have been derived by direct
calculations in lieu of the prescriptive Rule requirements. All direct
calculations are to be submitted for examination including the associated
load evaluations. The acceptance criteria are to be equivalent to
those embodied in the Rules.
3.1.2 LR
will consider the use of Designers' programs for direct calculations
where it can be established that the program has been properly validated
and has previously given satisfactory results when used to perform
direct calculations.