Normally, steel bars have a 6m length. If length of a bar is not enough to keep the reinforcement, we have to lap two steel bars. Normally, lapping position is at where near the minimum shear force is acting. Normally lap length is 50D meaning 50 times the bar diameter if both bars are of same diameter. When lapping two bars of different diameters, the lap length is considered as 50 times the smaller diameter.
Steel bar lapping in construction
Steel Lapping Formula Lap length = 50 X Diameter
if bar 12 m if beam is more then 15 m where lop given
Provided alternative laping
Wat is the minimum lap length for beam. Pls and me.
600mm minimum lap length
how u find 50 times
it also depend on fy of steel and fcu of concrete from anchorage chart
kamalakannan…. 50D . it is relative.
….any effect of concrete gread
What is the minimum percentage for overlaps, chairs, speacer bars to give while preparation of sub contractor bill?
Suppose the contractor work done 50 M.T
Then, what we taken for overlap, wastage & chairs percentage?
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it is preferred that the lap is at minimum bending moment.
If the Rebar case is 37 metre and Standard Reba size beacome 12metre.Then what is the lapping length.plz tell tnx
general guide for positioning of lapping is first 1/3 of the span of beam/slab.
best to study shear and beam diagram to identify suitable position of lapping
Can i take overlap steel quantity in bill?
In which situation that lap length 60D to apply? Is there any table to show the maximum lap length? Please advise. Thanks
Is it ok welding of both steel bars together