STAAD.Pro Help

M. To add a hydrostatic load to objects

To assign a hydrostatic load to members or plate elements, use the following procedure.

  1. Either:

    On the Loading ribbon tab, select the Load Items tool in the Loading Specifications group

    ヒント: This will add the load item to the currently selected load group selected in the program status bar.


    In the Load & Definition dialog, select a primary load case in the Load Cases Details list and then click Add.

    The Add New Load Items dialog opens.
  2. Select the appropriate tab:
    Object type Select this tab
    Members Member Load > Hydrostatic
    Plates Plate Loads > Hydrostatic
    注記: A message on the dialog indicates this option is disabled because no objects are selected.
  3. Click Select objects . The Selected Item(s) dialog opens and the Add New Load Items dialog closes temporarily.
  4. Use the appropriate selection tool to select all the objects to which you want to apply the hydrostatic load in the view window. All objects must be of the correct type to populate the list (e.g., only members can be added to the Member list, only plates can be added to the Plate list).
    注記: Hold the <Ctrl> to select multiple objects individually.
    As objects are selected, their corresponding object id number is added to the object list.
  5. Click Done. The Selected Item(s) dialog closes and the Add New Load Items dialog re-opens. The selected objects are now displayed in the objects list.
  6. Type values for the minimum and maximum global forces.
  7. Select the direction in which the force acts and the global axis along which the program should interpolate loads.
  8. Click Add. The dialog closes and the hydrostatic load items are added to the selected load case.
Unlike most other loads, you do not need to assign these load items. The selection of the objects is used for assigning the load. The program will calculate the exact trapezoidal load pattern based on the other parameters.