"Top Bars" AND "Other Bars" - LAP Splices
"Top Bars" AND "Other Bars" - LAP Splices
(OP)
Do you guys/girls know where I can find a statement similiar to the following:
"For Top Bar, that is horizontal reinforcement having more than 12 in. of concrete cast below the bars, 1.4 times the basic ld must be used. An accumulation of air and water that rises beneath such bars become entrapped on their underside."
I obtained this statement from a previous project, but I have not been able to locate this statement in my reference.
Thanks
"For Top Bar, that is horizontal reinforcement having more than 12 in. of concrete cast below the bars, 1.4 times the basic ld must be used. An accumulation of air and water that rises beneath such bars become entrapped on their underside."
I obtained this statement from a previous project, but I have not been able to locate this statement in my reference.
Thanks





RE: "Top Bars" AND "Other Bars" - LAP Splices
THANKS
RE: "Top Bars" AND "Other Bars" - LAP Splices
RE: "Top Bars" AND "Other Bars" - LAP Splices
1. Is the concept of "Top Bar" and "Other Bar" only used when determining the LAP Splice in a horizontal concrete slab and beam?
2. Can the concept of "Top Bar" and "Other Bar" be used when determining the LAP Splice in a sloped concrete slab and beam?
3. Due to the construction process of a vertical wall, is "Other Bar" applicable to all bars (vertical flexure, vertical temperature, and horizontal tempeature/shrinkage bars)?
4. How would you determine if a bar is a "Top Bar" or "Other Bar" for concrete shapes other than horizontal slabs such as a key?
Really Appreciate your Help.
RE: "Top Bars" AND "Other Bars" - LAP Splices
RE: "Top Bars" AND "Other Bars" - LAP Splices
"top" bar does not apply to vertical bars.
"top" bars can be in any member - slabs (only very thick ones), beams, girders, walls, footings.
RE: "Top Bars" AND "Other Bars" - LAP Splices
RE: "Top Bars" AND "Other Bars" - LAP Splices
If individual pad footing has only one r/f mesh at the bottom, will you call it a top bar?
KC
RE: "Top Bars" AND "Other Bars" - LAP Splices
If there is more than 12" of fresh concrete cast below it, then absolutely yes.
RE: "Top Bars" AND "Other Bars" - LAP Splices
RE: "Top Bars" AND "Other Bars" - LAP Splices
My question was that bottem r/f mesh has only 2" thick concrete below it as the cover. You still call it a "Top Bar"? Sorry for bothering you too much.
KC
RE: "Top Bars" AND "Other Bars" - LAP Splices