splice length
splice length
(OP)
In reviewing some recent plans I noticed that the splice of the bars is tabulated in terms of bar diameter. I thought ACI has several factors in determining splice length other than X*bar diameters.
Any comments?
Any comments?
Regards,
Lutfi






RE: splice length
RE: splice length
RE: splice length
I know that there has been a lot of "cross-over" in it's use with reinforced concrete - in the 1970s, bridge construction superintendents that I worked with would fall back on bar diameter rules-of-thumb if the lap length was not clearly defined.
www.SlideRuleEra.net
RE: splice length
Ld = (0.16*db^2*fy*gamma)/(k(f’m)^0.5)
The lap of 48*bar diameter may not be accurate as you start using larger bar sizes.
On my plans i have a table with various concrete strength and depth of rebar (over or under 12 inches of cover) and I am very explicit with the exact lap length for each bar.
I am always concerned with leaving it up to the contractor to perform calculations. That is my point of raising this question.
I want to thank all for their input.
Regards,
Lutfi