Options
In iteration algorithms, the following optimization principles are included: reinforcement is increased mainly in the most stressed parts of the section, mutual influence of reinforcement determined by DCF or DCL is also taken into account. These algorithms meet the requirements for flexibility, because the user will be able to assign the mode for analysis of reinforcement:
to select type of reinforcement pattern in the section (symmetrical relative to one or two principal axes of the section, uniform location of reinforcement along the specified edges, arbitrary location of reinforcement);
to assign mode 'corner rebars' where the general algorithm increases area of reinforcement primarily in corner parts. In some cases this approach allows you to reduce amount of reinforcement by 20-30% in comparison with other types of reinforcement pattern in the section;
to assign ultimate diameters of reinforcement bars (rebars) for analysis of reinforcement according to serviceability limit state because smaller diameters improve resistance of RC element to crack formation and in this case area of necessary reinforcement could be noticeably less;
to manage parameters of iteration process, reduce the analysis precision a little (in this case accuracy may be 3-5%) but significantly increase operating speed of algorithm and vice.