Open the Load Definition dialog, which defines loads from predefined load cases, using either method:
- Click Loads menu > Load Definition
- Click
.
The dialog has 4 tabs:
- Opens the dialog for defining 
- Opens the dialog for defining 
- Opens the dialog for defining the values of 
- Deletes a nodal load type. To remove a load from a structure, select the load type to be deleted and indicate the nodes from which to delete the load.
- Opens the dialog for defining 
- Opens the dialog for defining 
- Opens the dialog for defining 
- Opens the dialog for defining 
- Opens the dialog for defining 
- Opens the dialog for defining 
- Opens the dialog for defining 
- Opens the dialog where 
- Opens the dialog where 
- Opens the dialog where 
- Opens the dialog where loads due to 
- Opens the dialog where 
- Opens the dialog where 
- Opens the dialog where 
- Opens the dialog where 
- Automatically applies self-weight to all structure elements. The load acts along the Z axis of the global coordinate system. Its orientation is opposite to the axis orientation (See also: 
- Opens the dialog in which the direction of 
- Opens the dialog in which 
- Opens the dialog in which 
- Opens the dialog in which the values of 
- Opens the dialog in which the values of New types of loads let you define body forces, centrifugal and angular acceleration forces, so you can analyze and design structures for the marine industry. These structures are associated with extracting crude oil from the bottom of the sea, such as, components for equipment on drilling platforms. These loads generate structural inertia forces, because of assigned velocity or acceleration. This type of load applies to marine structures, where transport loads are very important, such as, a structure lifted by a crane or mounted on a ship. Although these types of loads do not solve all problems when modeling marine structures, they make the modeling easier.
The Robot program defines masses (weights) added to nodes and bars, as well as conversion of loads to masses. Added masses are primarily used in dynamic analyses (dynamic, harmonic, spectral, seismic, and time history), but they need to be considered in static calculations when generating forces for body loads and self-weight, as follows:
- The table of added masses is available if any load case has been defined.
- Options for added masses (nodal and bar masses) are always available in the dialog.
- In the mass table and the Analysis Type dialog on the Load to Mass Conversion tab, a complete list of simple load cases is available.
An added mass influences a given load case, when one of the following loads is defined (these are loads generating forces from added masses):
- Self-weight
- Body forces
- Centrifugal and angular acceleration forces.
The top of the dialog has information about the load case (name and number) for which to define the load, and the type of load to be assigned to nodes or bars in the structure.
After the load type is specified, the load can be assigned to structure nodes or bars using one of the following ways:
- Enter numbers of the nodes or bars in the Apply To field and click Apply.
- Add the defined load to consecutive nodes or bars in the structure (the cursor will change its shape to the load symbol).
- Select the nodes or bars graphically and click Apply.