Pile Layout (Parametric) form (Pile Cap)

Used to specify pile arrangement for a pile cap by specifying a rectangular or circular pile arrangement.

Opens when Mat Foundation Job > Default Properties is selected in the Main Navigator pane.

Note: If a circular arrangement is chosen, the program will design an octagonal pile cap.

Setting

Description

Pile Arrangement for Support

Used to select a support from the current job for which you would like to input pile arrangement.

Spacing selection

Select to use either a Row Spacing or Column spacing for Rectangular layout.

Unit

The Unit drop-down list box allows you to select the force unit used for Pile Capacity and length unit used for spacing, diameter, edge distance etc.

Pile Data

Used to input the forces that a pile is meant to bear.

Setting	Description
Lateral	Specify the lateral capacity of a pile.
Uplift	Specify the uplifting capacity of a pile.
Vertical	Specify the vertical capacity of a pile.
Dia	Diameter of a pile.
Edge	The Edge Distance field allows you to specify the distance between the edges of a pile.
Pile in Pilecap	The pile embedment length into the pile cap.

arrangement type

Pile arrangement can be either rectangular or circular. Pile cap having circular arrangement will be design as octagonal pile cap.

Rectangular arrangement needs following inputs,

Setting	Description
No of Rows	Number of piles in the longitudinal direction.
Pile Spacing	Center to center spacing between pile rows.
No of Columns	Number of piles in the transverse direction.
Column Spacing	Center to center spacing between pile columns.

By default program will create symmetric pile arrangement from the above input but user can change the default setup by editing the table below. Both row and column grid lines can be adjusted by selecting appropriate radio button.

Circular arrangement needs following inputs as shown below.

Setting	Description
Number of Piles	Total number of piles, excluding the center pile (if option is selected).
Number of Layers	Number of concentric circles in the circular arrangement.
Pile Spacing	Minimum spacing between piles.
Use Center Pile	Select this option to add a pile at center of pile arrangement.

By default, program will try to assign equal number of piles for all concentric circular layers. The arrangement can be edited using the table below.

Create Pile Arrangement

Creates the pile layout and opens a dialog box to display the pile coordinates table and a figure.

Note: Pile coordinates in this table are editable.

Delete Row - Click to delete the current row from the pile coordinate table and figure.

Select Current Arrangement

Once a satisfactory pile layout has been found, click the Select Current Arrangement button to select and apply that layout.

The program will check the pile reaction against pile capacity to make sure pile reactions do not exceed pile capacity values.

Show Pile Reactions

The Show Pile Reactions button opens a table displaying the reaction on each pile. The figure below shows the pile reaction table.

spacing type and table

Once a pile arrangement is started, the table displays the spacing for each row, column, layer, or circumference; depending on what arrangement type and table spacing type is selected.