LRFD(semi-probabilistic, limit-state design framework that uses load and resistance factors to rationally account for uncertainties in design. load factors increase characteristic loads and resistance factors decrease characteristic resistances-resulting in design loads and resistances. LRFD requires that design loads be less than or equal to design resistances)
characteristic loads and resistances(nominal loads and resistances defined at specific return periods or probabilities of exceedance for use in load and resistance factor design (LRFD) framework. (see LRFD.); номинальные нагрузки и устойчивость, определенные в конкретные периоды повторяемости или вероятности превышения для применения с коэффициентами нагрузки и устойчивости (см. КниУ))