Crank Details:

Defines minimum beam and column bar crank dimensions in both mm and bar diameters. The larger of the 2 values will be used.

The Min bar diameter is the minimum bar size that will be cranked (usually 16 mm). Bars below this diameter will not be cranked as they are assumed to be flexible.

Crank top middle:

Crank the top middle steel (nominal steel) if it is equal to or above the minimum diameter.

Crank bot middle:

Crank the bottom middle steel (main steel) if it is equal to or above the minimum diameter. 

Crank bot support:

Crank the bottom support steel (nominal steel) if it is equal to or above the minimum diameter.  At end supports the outside end of the mid-span steel will be cranked instead.

Laps:

Sets the minimum Lap length in mm and bar diameters. Having calculated the required lap length for a bar the program will then check it against these values and use the largest value.

Top/Bot end gap:

Distance from end of mid span nominal top/bottom steel to support. These can be set relative to the column face or any perpendicular beam face.

Kicker Height:

Sets the height above the top of the beam for start of the bars. The beam concrete will be poured to this height to form a kicker for the column formwork.

Use Splice bar laps:

In columns where column dimensions are different for each lift then the program will use splice bars instead of cranked bars that project from the lower lift.

If active this switch causes the program to always use splice bars.

         Cranked                   Splice Bars

Use hoops:

In circular columns use hoops instead of a helix.

One link pitch:

Use one link pitch in columns (EC2 only). Use the minimum of pitch and 0.6xMax Pitch - clause 9.5.3.4