Bentley 2006 User Manual

 

STAAD Commands and Input Instructions 

 Section 5

 

 

x1, y1 = Local X and Y coordinates of the corner nearest to the 
surface origin of the loaded region. Measured from the origin of 
the surface, in the local coordinate system of the surface. 
 
x2, y2 = Local X and Y coordinates of the corner farthest from the 
surface origin of the loaded region. Measured from the origin of 
the surface, in the local coordinate system of the surface. 
 
Concentrated force on Surface 
 
General Format 
 

 

⎧ GX ⎫ 

⎨ GY ⎬ p x y 

⎩ GZ ⎭ 

 
GX, GY and GZ : Global X, Y and Z directions. If the direction is 
omitted, the load will act along the local Z axis of the surface 
 
p = Value of the concentrated force. Negative sign indicates load 
acts opposite to the direction of the axis specified. 
 
x, y = Local X and Y coordinates of the point of action of the 
force. Measured from the origin of the surface, in the local 
coordinate system of the surface. 
 
Examples