How to create, edit, import or delete load combinations in Concrete to Concrete module

Summary

The load combination panel in the Concrete to Concrete module allows you to create, modify, import, and delete load combinations needed for calculating splice length, development length, and installation length. This article guides you on how to efficiently use this panel for your design.

Prerequisites

Make sure you are logged in to your PROFIS Engineering account and have opened the Concrete to Concrete module. If you need help accessing the module, click here for step‑by‑step instructions.

Step-by-step instructions

1. Open the Load Combination panel
   In your Concrete to Concrete design workspace, scroll to the Load Combination panel at the bottom of the screen.
   If your application selection is Extension or Structural Joint, here you will see a table listing each load combination (varies depending on the application), including:
   • Load type
   • Design & sustained load inputs
   • Tension, shear or moment
   • Calculated installation length

If your application selection is Shear doweling, here you will see a table listing Load type, Shear Forces and utilization. Multiple load combinations options (steps form 3 to 6 below) might be limited in this connection type.

2. Edit existing combinations
   Click on the static, seismic or fire design icon to switch the Load type.

Click inside any cell for forces/moment to type new values.
Your changes automatically update in the table and the installation length is calculated.

Note: You can also edit the loads using the 3D view of the design.

3. Create a new load combination
   Click Input custom factored loads (enabled only for PROFIS Premium users).
   This creates a blank row where you can enter your loads.
   Enter load details and click ✓ (apply) or ✖ (cancel) icons to confirm or discard your input, respectively.

   

   Select the radio button to switch the active load combination.

4. Import factored loads from a spreadsheet
   Click Import factored loads from a spreadsheet.
   

   A pop‑up will appear with a paste field.
   Steps to import:

   1. Copy your factored load table from Excel or another source.
   2. Paste it into the pop‑up window.
   3. Click Apply.

The system automatically fills in the load combinations based on your pasted data.

5. Choose calculation mode
   Below the load combination table, select one of the two calculation options, when working with multiple load combinations (enabled only for PROFIS Premium users):
   • Calculate all combinations (slower)
   • Calculate active combination only (faster)

To quickly identify the governing combination, click Update to decisive. This option becomes available only when new load combination is added.

6. Delete a combination
   Click the trash bin icon on the right-hand side of any load combination row.
   Deleted combinations cannot be recovered, so ensure you remove only those no longer needed.

   

   Click on the warning icon to view warnings, if any.

Tip

For larger projects with many factored loads, use the Import factored loads from a spreadsheet option. It reduces manual input time and helps avoid typing errors in complex designs.