Foundation Plan

Used to specify basic information on support, such as Column Positions, Column Dimension. It also allows creating a grid to be used for defining column position, pile position, mat boundary etc.

The Foundation Plan page contains the following sub-pages:

Name Description

Linear Grid Setup

Opens the Linear Grid Setup and Table form in the Data Input pane, which is used to define a linear grid on which geometry can be graphically created.

Foundation Plan group items

Name Description Radial Grid

Setup

Opens theRadial Grid Setup and Table form in the Data Input pane, which is used to define a radial grid on which geometry can be graphically created.

Column Posi-tions

Opens theColumn Positions table in the Data Input pane, which is a spreadsheet table used to input column positions in Car-tesian (XYZ) coordinates.

Column Dimen-sions

Opens theColumn Dimensions table in the Data Input pane, which is a spreadsheet table used to specify the depth and width of the columns at each support location and pedestal information, if any

Linear Grid Setup and Table form

Used to define a linear grid on which geometry can be graphically created.

Opens when Foundation Plan > Linear Grid Setup is selected in the Main Navigator pane.

Note: STAAD.foundation will display only a single grid in the Geometry tab of the main view window. Creating a new grid will replace any existing grid. Any foundations, loads, or other model objects placed on this grid will not be affected, though.

Note: The display of grids can be toggled using the Grid Toggle tool found in theTrans Rotate toolbar.

A grid allows you to specify your foundation geometry by snapping to the intersections of the grid lines.

Origin X / Y / Z

Specify the origin coordinates for the grid, in the specified units.

Spacing X / Y

Specify the uniform spacing to be used (in the length Unit specified for Origin). By default, the grid lines are spaced equally apart. Individual grid line spacing may be edited in the Linear Grid table.

Lines left/right of origin

Specify the number of linear grid lines to be generated along the X axis, either side of the origin (Left = negative x axis, Right = positive x axis).

Lines top/bottom of origin

Specify the number of linear grid lines to be generated along the Z axis, either side of the origin (top = negative z axis, bottom = positive z axis).

Grid direction

Toggles the values displayed in the Linear Grid table for the current grid.

Select X or Z to display the grid line spacing along that axis.

Show Grid

Select Yes to toggle the grid on after it has been Generated.

Note: The display of grids can be toggled using the Grid Toggle tool found in the Trans Rotate toolbar.

Save as Default

Save the linear grid settings as defaults for later use.

Linear Grid table

Displays the spacing between grid lines.

Additional grid lines (rows in the table) can be added using the Insert After and Insert Before buttons.

Generate Grid

Click to generate the linear grid with the specified geometry.

Insert After

Click to insert new row of data in the table after the selected row.

Insert Before

Click to insert a new row of grid data in the table before the selected row.

Delete

Click to delete the selected table row(s).

Radial Grid Setup and Table form

Used to define a radial grid on which geometry can be graphically created.

Opens when Foundation Plan > Radial Grid Setup is selected in the Main Navigator pane.

Note: STAAD.foundation will display only a single grid in the Geometry tab of the main view window. Creating a new grid will replace any existing grid. Any foundations, loads, or other model objects placed on this grid will not be affected, though.

Origin X / Y / Z

Specify the origin coordinates for the grid, in the specified units.

Inner / Outer radius

Specify the radius values for the first and last circumferential grid line.

Divisions along the circumference

Specify the number of radial grid lines to be generated.

Divisions along the radius

Specify the number of divisions of the radius. Since all radius lines ter-minate at the specified origin (center), the number of circumferential grid lines will be one less than this value.

Grid direction

Toggles the values displayed in the Radial Grid table for the current grid.

l Radial - Displays the angle of each radial grid line, in degrees.

Radial grid line spacing is measured counter-clockwise (anti-clock-wise) from the positive X axis (from grid origin).

l Circumferential - Displays the radial spacing of each cir-cumferential grid line, in the

Show Grid

Select Yes to toggle the grid on after it has been Generated.

Note: The display of grids can be toggled using the Grid Toggle tool found in theTrans Rotate toolbar.

Save as Default

Save the radial grid settings as defaults for later use.

Radial Grid table

Displays the spacing between grid lines.

Additional grid lines (rows in the table) can be added using the Insert After and Insert Before buttons.

Generate Grid

Click to generate the radial grid with the specified geometry.

Insert After

Click to insert new row of data in the table after the selected row.

Insert Before

Click to insert a new row of grid data in the table before the selected row.

Delete

Click to delete the selected table row(s).

Column Positions table

A spreadsheet table used to input column positions in Cartesian (XYZ) coordinates.

Opens when Foundation Plan > Column Positions is selected in the Main Navigator pane.

After column coordinates are entered, the columns along with their respective node numbers are displayed in the Graphics Window. The tab key or arrow keys may be used to move from one cell to the next in the table. The

coordinates in the table can be modified like any spreadsheet. In order to delete a column, select the column in the Graphics Window by clicking on it.

Then either press the delete key on your keyboard or select Edit > Delete.

Note: A column will not be shown in the Graphics Window until you press [Enter] or click outside of the row you are currently in.

Note: Initially, all unassigned footings will appear as spread footings of uniform size in the Main View window. The graphics will update once the footing type has been assigned.

Column Dimensions table

A spreadsheet table used to specify the depth and width of the columns at each support location and pedestal information, if any. Column or pedestal

dimensions are needed to check punching shear for a mat foundation. For all other footing types these dimensions will be used to calculate critical design forces. The unit used for this form is set through the “Setup Input/Output unit” in the toolbar.

Note: This table allows you to quickly enter in data for multiple columns and pedestals. To provide data for a single column, you can use the Set Column Dimensions tool found in theStandard toolbar.

Opens when Foundation Plan > Column Dimensions is selected in the Main Navigator pane.

If the column type is Circular “Column Width” field will be grayed out. If you have pedestal you can select “Yes” radio button under Consider Pedestal field.

If you select “Yes” the fields for Pedestal Height, depth and width will be editable.

By default program considers that there is no pedestal.