Bottom Slab Reinforcements

Slab bottom reinforcement design is made in this section.

Figure 1

Uniform Reinforcements

Click Custom Zone Uniform Reinf. button as shown in Figure 1 to draw a custom uniform reinforcement region in slab.

Click Select Slab For Uniform Reinf. button as shown in Figure 1 and select slab edge or slab piece to assign as uniform reinforcement region.

Figure 2

Click Show cell in spreadsheet to select the uniform reinforcement region in AutoCAD as demonstrated in Figure 2.

Click N/Showing Additional Rebar Zones button as shown in Figure 1 to see the extra reinforcement demand regions in slab plan as illustrated in Figure 3.

Figure 3

Select rebar number and enter the spacing data of reinforcement layers.

Additional Reinforcements

Figure 4

Additional reinforcements to uniform reinforcement regions are added from this spreadsheet.

Click Draw Slab Reinf. to draw rebar. Additional rebars must be drawn from support face to support face and in order to calculate the contribution of additional reinforement to capacity rebar region should be drawn.

Figure 4

Click Draw Region cell to draw the effective region of additional rebar.

Enter spacing, rebar number and rebar count data in the spreadsheet as illustrated in Figure 4.

Integrity Bottom Bar

Figure 5

Integrity bottom reinforcements for punching shear are added from this spreadsheet.

Select bar diameter and code check template for inregrity bottom bar as demonstrated in Figure 6. See Design Criteria to learn how to set code check templates . See Design Templates to learn how to set analysis source of IBB code check.

Enter additonal rebar to add integrity rebars.

Click Verify All to run the code check for all the columns in the floor plan.

Clicl Verify Selected and select columns to run the code check for the selected columns.

Figure 6

Status of each column will be set as passed or failed when the code check is completed. Click Show cell to see the detailed report.

After the code check is completed, required integrity bottom bar count will be displayed as read-only in the spreadsheet as illustrated in Figure 6. If entered additional rebar is not adequate, edit the rebar count and run the code check again.

Figure 7

Additional IBB rebar data will automatically be written in top reinforcements drawings as illustrated in Figure 7.