| Minimum Number of Bars in Footing |
Used to define the minimum acceptable number of bars in a layer. If 3 is entered, there will be at least three bars in the bottom of the footing parallel to the major and minor axis. If bars are required in the top of the footing, there will also be at least three bars in footing parallel to the major and minor axis. |
| Bar Sizes group |
The options in this section are used to set parameters by which bar sizes are selected. | Setting | Description |
|---|
| Keep all bars in layer the same size |
(Spread Footing and Pile Cap) Used to group the bars in a layer so they are designed to be the same size. If this option is selected, one size will be selected for all of the top-layer bars, regardless of direction. The same will be done for the bottom-layer bars. The design of one layer does not impact the design of opposite layer. |
| Square Footings Use Same Quantity and Size Bars for Both Directions in Layer |
(Spread Footing and Pile Cap) For square spread footings the same reinforcing will be used in both directions. For ease of construction it is sometimes desirable to call out the same quantity and size of reinforcing bars in both directions, even if not required. If this option is selected the program will select the same reinforcing bars each way for the bottom layer based on the greater amount required in either direction. If reinforcing is required in the top layer, the program will likewise select the same reinforcing bars each way based on the greater amount required in either direction in the top layer. |
| Adjacent bars may differ in size by |
(Continuous Footing) Used to control the change in bar size for bars in the same layer and direction. For example, if 1 is used, then only #4, #5 and #6 bars can be placed in an adjacent span to a #5 bar. |
|
| Spacing group |
| Setting | Description |
|---|
| Segment Spacing Increment |
Value is used to help in defining design segment dimensions that are rounded off to typical dimensions that engineers would use. The segment spacing will not affect dimensions that are explicitly defined by code like the locations used for checking shear and flexure along a continuous footing. Note: This value may produce longitudinal top reinforcement segments that are not exactly under the columns. It is advisable to keep this value between 3 and 12 in.
|
| Shear Bar Spacing Increment |
This value is used to define the shear reinforcement spacing increment so that shear reinforcement spacing matches office and project standards. |
|
| Select bars based on… group |
This option is used in selecting the optimization criteria to use from all acceptable combinations of bar sizes and spacings. Selection by area will give the least bar area regardless of bar size. Select one of the following criteria:
-
Minimum Bar Area
-
Minimum Bar Spacing
-
Maximum Bar Spacing
|
