Radial grid dialog

Used to generate construction lines in transformed radial coordinates. This is used to create circular type models where members are modeled as piece-wise linear straight line segments.

Note: Though the parameters are entered in radial coordinate notation, the result coordinate values are in Cartesian coordinates. The grid is drawn with straight lines between points along an arc as well. Members drawn between two points on an arc will be straight line. To add a beam with a radial curve, refer to M. To add a curved beam.

Opens when Radial is selected as the type of new grid or an existing radial grid is edited in a Snap Node/<entity> dialog.

Setting

Description

Name

(Optional) Specify a name by which you can identify the grid in the Snap Node/<entity> dialog.

Plane

Used when the grid is to be placed in a global plane. Select the global plane in which the gridlines will lie.

Angle of Plane

Choose one of the three options (X-X, Y-Y, or Z-Z) and provide the angle of rotation (in degrees) of the grid plane about that axis.

Origin

The (0,0) position on the grid in the grid coordinate system. Usually, the grid origin coincides with the structure origin.

Type in the location of the origin of gridlines in global coordinate system, in the current length units, or click the tool to change the location of the grid origin by graphically selecting a existing node.

Construction Lines

Setting	Description
Start Angle	the angle (in degrees) about the orthogonal axis to the plane from the axis first referred to in the definition of the plane. For example, if the selected plane is X-Y, then the angle is measured about the Z axis (using the right hand rule) from the axis parallel to the X axis.
Sweep	the angle (in degrees) measured from the start angle to the last radial line
Bays	the left value is the number of grid divisions from the first to last radial line (along the arc)
Radius 1	The radius of the first arc grid line (inner radius)
Radius 2	The radius of the last arc grid line (outer radius)
Bays	the right value is the number of grid divisions along the radial direction

STAAD.Pro Help

Radial grid dialog

Radial grid construction lines nomenclature