Before calculating the stairs, it is necessary to determine the boundary properties of With the Set Stair Boundary Conditions command, the edges of the stairs . You can fix the edges of the stairs are fixed to rotation and/or translation with the Set Stair Boundary Conditions command, or you can solve it they are solved together with the structure with the semi-rigid diaphragm acceptance solution. Before calculating the stairs, the boundary properties of the edges of the stairs must be determined.
Location of Set Stair Boundary Conditions Command
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Set Boundary Conditions Dialog
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Specifications |
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Boundary conditions for separate solution  If a solution is made with the assumption of a fully rigid diaphragm, the stair is solved separately from the structure. In this case, the support conditions of the stair edges are determined by two options: rotation and translation. Stair loads should also be applied to the structure. |
Translation restrained  If checked, the selected edge is restrained against translation. |
Rotation restrained  If checked, the selected edge is restrained against rotation. |
Boundary conditions for solution with building system  If the solution is made with the assumption of semi-rigid diaphragm, the structure - the stair is solved together. In this case, the objects to which the edges of the stairs are connected are determined by the options given in the dialog. |
Fixed  The edge of the stair is considered a fixed support. |
Connection distance  Give the amount of distance that will be required for the stair edge to be attached to the support. |
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