Reactions at foundation nodes for all members are given in the "Reactions" report. It should be mentioned that reactions at wall foundation nodes are only reported at wall physical nodes, not at all wall foundation nodes. This is explained further in the following figure where a wall segment is composed of three sub-elements (i.e., meshed into three sub-elements). Note that n1 and n2 are the wall physical nodes (i.e., they are created when the user create this wall in Modeler). The nodes n2 and n3 are internally created by RAM Frame when meshing these walls and they are referred to as internal nodes. Since the wall is on the foundation, all these nodes are also foundation nodes.

The reactions R1 and R2 are calculated in such a way that the program adds the reactions at the internal nodes (n2-n3) to the reactions at physical nodes (n1 and n4). Hence, the reported reactions at the physical nodes not only contain the reactions from n1 and n4, but also they contain reactions from n2 and n3.

Note that from equilibrium point of view, the equilibrium equations are always satisfied since R1 and R2 are always the total resultants at the foundation nodes (i.e., R1 + R2 = F1 + F2 + F3 + F4+ F6). The reactions at internal foundation nodes are not given in the report.

Calculation reactions at wall physical nodes

In order to see reactions at all foundation nodes for wall bases, they can be displayed by invoking the Reaction button on the analysis toolbar and then selecting Show Reactions for All Nodes option (see Reactions). Note that these reactions are only shown on screen but they are not given in any reports.