STAAD.Pro Physical Modeler Help

Add Member Distribured Load dialog

This dialog is used to specify a distributed (i.e., linear) force along selected members.

Opens when the Distributed tool in the Loads group is selected on the Member ribbon tab.

Property Value
Load Select the load case or load group to which this load will be added.
Tip: The current load case or group is the default selection. This is displayed in the program status bar and can be changed on the View ribbon tab in the Active Load group.
Load type Select the type of distributed load:
  • Uniform - a load which is constant in magnitude along the entire member length
  • Variable - a load which varies linearly over a portion of the member length
  • Triangular - a load which varies linearly from zero to a peak magnitude at the member midpoint and then back to zero along the member length
  • Trapezoidal - a load which varies linearly from zero to a specified magnitude at a specified distance along the length of the member, then remains at that magnitude until the same distance from then opposite end of the member
  • Stepped - a load that changes from an initial magnitude to a second magnitude at a specified point along the member length
  • Ends - a load that is applied at a set distance from each end of the member
Direction Select the direction in which the load acts.
  • Global X / Y / Z – to apply loads parallel to the selected global axis.
  • Local x / y / z – to apply loads parallel to the selected local axis. Local x loads are axial to a member.
  • Projected X / Y / Z – indicate the loads along the projected length of the member in the corresponding global direction
Uniform load type
SettingDescription
Magnitude Type the magnitude of the load. Negative values may be used to reverse the direction.
Variable load type
SettingDescription
Initial magnitude Type the magnitude of the load at the beginning of the loaded section. Negative values may be used to reverse the direction.
Final magnitude Type the magnitude of the load at the end of the loaded section. Negative values may be used to reverse the direction.
As a percentage Check to specify distances as a fraction of the member length.
Initial distance The distance from the start of the member to the beginning of the linear varying load.
Final distance The distance from the start of the member to the end of the linear varying load.
Triangular load type
SettingDescription
Magnitude Type the peak magnitude of the load. The load varies linearly from zero to this value at the midpoint of the member.
Trapezoidal load type
SettingDescription
Magnitude Type the magnitude of the load in the uniformly loaded portion. Negative values may be used to reverse the direction.
As a percentage Check to specify distances as a fraction of the member length.
Variable distance The distance from the ends of the beam to the uniformly loaded portion. The load varies linearly from zero to the Magnitude value over this length.
Stepped load type
SettingDescription
Initial magnitude The value of the load along the first segment of the beam, up to the step distance.
Final magnitude The value of the load along the final segment of the beam, after the step distance.
As a percentage Check to specify distances as a fraction of the member length.
Step distance The distance from the start of the beam to the step in load magnitude.
Ends load type
SettingDescription
Magnitude Type the magnitude of the load. Negative values may be used to reverse the direction.
As a percentage Check to specify distances as a fraction of the member length.
Distance from end Type the length of the loaded section from the ends of the member.