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Results which are reported for the individual stages of a staged-construction load case are cumulative. For example, Stage 2 results contain contribution from both Stage 1 and Stage 2.


To demonstrate this second method, a point load is applied to the free end of a horizontal cantilever, as shown in Figure 1:

Figure 1 - Horizontal cantilever

A staged-construction load case (STAGED) is defined, then incremental loads of 1kN, 10kN, and 100kN are applied in Stages 1, 2, and 3, as shown in Figure 2:

Figure 2 - Staged-construction load case

Noncumulative results are then obtained for Stages 2 and 3 by defining staged-construction load cases which have only single stages. These load cases (named STAGED stage 1, STAGED stage 2, and STAGED stage 3) are equivalent to the original STAGED case except that loading is represented by a chained sequence of individual load cases. Next, load combinations (named stage 1 only, stage 2 only, and stage 3 only) are defined in a similar manner. Once analysis is run, results are obtained for individual stages, as shown in Figure 3:

Figure 3 - Individual stage results