Spacer bar requirement

[LewisLiew]

I am using spacer bar 25mm dia each of 1500 mm lgth of beam to separate 2 layer of rebars. Any requirement for lgth of spacer bar?

 

[hokie66]

Usual practice is to make them long enough to support all the bars, while maintaining adequate edge cover.

 

[LewisLiew]

My spacer bar are cutted more than width of beam so I put it 45 degree from the beam with enough cover. Is that ok?

 

[hokie66]

That should be fine, as long as it is done correctly in the field. You don't want the end of those bars up against the form.

 

[patswfc]

What size are the bars in the 2 layers that you are seperating?
In the UK, spacer bar have to be a min of 25mm or the size of the main bars that are being seperated if these are bigger.