Example of reinforcement modification

Modification of reinforcement will be illustrated based on changes in parameters of reinforcement generated for a spread footing with the use of the Spread Footing macro. To define the spread footing reinforcement, follow the steps below:

1. Click the Spread footing icon
2. In the Spread footing - GEOMETRY dialog specify the following parameters:
   • Element name: spread footing S1
   • Number of elements = 1
   • Foundation shape - 1 rectangular spread footing
   • Column shape - 1 column with rectangular cross-section
3. Adopt the dimensions of the column, the spread footing and the column pier as shown in the drawing below
   
4. Click Next; it opens the Spread footing - REINFORCEMENT tab
5. Switch off the Top reinforcement of spread footingoption; this type of reinforcement will not be generated in the defined spread footing
6. Determine the following parameters of the bottom reinforcement of the spread footing:
   • lower layer: f = 12 mm, spacing s = 150 mm
   • upper layer: f = 10 mm, spacing s = 250 mm
   • steel:R, cover 30 mm
7. Determine the following parameters of dowel bars of the column base-column connection:
   • reinforcement type: 1
   • reinforcement:

     o     cover = 30 mm,

     o     number of bars: side A = 3, side B = 2

     o     f= 12 mm,

     o     steel: R

   • anchorage length: in column = 50*f, in foundation = 50*f
   • stirrups:f= 6 mm, spacing s = 180 mm, steel:R
8. Click Insert
9. Accept the default reinforcement number (given in the command line), click Enter
10. Indicate the location of the generated drawing of the spread footing and its reinforcement
11. In the case reinforcement parameters or a reinforcement description needs to be modified once the spread footing reinforcement has been defined, the option Modify - Reinforcement or Modify - Reinforcement description should be used.

    For example, to modify parameters of the stirrups generated in the spread footing, do as follows:

    select the stirrup reinforcement in both sections of the spread footing (see the drawing below)

    
12. Right-click Modify option from the context menu
13. In the Reinforcement distribution dialog, change the stirrup spacing entering n = 6 (instead of n = 5); the stirrup spacing is adjusted automatically (the change from s=180 mm to s=150mm)
14. Click OK; stirrups will be modified in the drawing
15. Click the Update tables icon
16. Select the reinforcemet table range: Alland click Enter; the reinforcement table will be modified and it will include new reinforcement parameters.

Similarly, there is a possibility to modify a description of a reinforcement position; after indicating a number of the reinforcement position (label), right-clicking the Modify option from the context menu, the Reinforcement description option appears on the screen. In this dialog, you can select a new reinforcement description style or modify the currently used reinforcement style (after clicking Details).