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Structural Design Check
For the entire structure, forces are distributed based on the capacities, stiffnesses, and shear resistance distribution of the walls designed on the second per-level iteration and the hold-down and drag strut procedures determined value from the second structural iteration for irregularities, if one was needed.
The designed walls are then checked against the new forces, and the results reported in the Design Check output. :
Reasons for Check
Output Report Consistency
This ensures that the output reports show the force distribution, the r value, the shearwall deflection, and shearwall design capacity from the same set of walls.
Possibility of Failure
Although it rarely occurs, it is possible that the walls designed on the second iteration cannot withstand the forces created from their rigidities. The design check shows this situation, indicating to the user via the following warning message that the problem is to do with design iterations and can be remedied by more manual input.
Warning: For shearline(s) [ A, B, C, ..., 1, 2, …], a shearwall that passed the design check on the initial run failed the final check when forces were redistributed to shearlines and/or wall segments within a line using [ shearwall deflection, shearwall capacity]. Try to adjust wall materials to achieve a passing design, or choose a different force distribution option in the Design Settings.