How can we get support reaction for certain numbers of load case for selected support.
I have gone through the help but I could not succeeded.
To extract the support reaction, you need to use the following function--
Output.GetSupportReactions NodeNo, LoadCase, ReactionArray
This function extract the support reaction for one node and one load case at a time. So you need to create multiple loops to extract the reactions for multiple load cases and nodes. For example, create two long array which will store the node numbers and the load case numbers. Now create two loop, one where the node number is fixed and load case number is variable and then repeat this with next node number (another loop).
If you want to modify it further such that the selected support node in the STAAD file will extract the support reactions, then you need to use other OpenSTAAD functions which will first store the selected node numbers in the node number array, function like "Geometry.GetSelectedNodes SelNodeArray, Sorted". Go through the OpenSTAAD manual for more details about the functions and variable types.