( 2. Tolerance for d>e loogjtudinal localion of bend., arod ends of reinforcing bars should be ±2 inches, excq,c at discontinuous ends of strucrural mem­ bers where the tolerance should be ± I inch. 3. As long as the tocal number of reinforcing bars n,quired is maintained, a reasonable tolerance in spacing individual bars is J. 3 inches, except where openings, inserts, and embedded items might require some additional shiflina of bars. 4. Tolerance for lap splice lengths should be-I inch. 5. Tolerance for embedded leog U, should be-I inch fot-/l'J lbrough #11 bors, and-2 inches for #14 and #18 bars. 6. Tolerance on the vertical placa:m:nt of reinforcing bors: a. :tl/4 io. (mernb«depth s 4 in. ) b. ±3/4 in. (member depth >4 in.,~ 12 in. ) c. :ti in. (member depth> 12 in. ) 7. Tnlemnce nn the clearance he N'!en reinforcing, ha. rs; one-quartet spte:1-fied dist>nce, not to exceed ±I in. 'fbese reasonabk toler:i. nc:es are a JIO\\-ecl to permit economical reinforcing bar placing one:! still meet the Engineer's dc,ign roquircmcnis. Toler= in the fabrication of reinforcing b<l!s are covered in Chapler 6 of this book. uhc cxoct posuioning. ofl Qn. gitudinal rcinf QJ9Qg bars ii-~rally not critical to the strength of the >truc-tural member; lhcrcforc, the placin_g tolcrancies are not as restrictive as those shown for concrete cover, For example, in ooutinuous beams, the botl Om bars roay be specified to extend 6 inches irll O suppcrting col­ umns ot each end of the beams. Voriarions in the sheared lengrh ofd,e bars, rho center-to-oenrer discanc:es between cotumns, and rhe form dimensions. make a larger longitudinal tolennce necessa,y. A tolerance of, 2 inches $hoold be suf­ fic-ent, as shown in Fig. 11 l. 11-4 c:cnc,a Relnf Ofdng Sleel lnlh Me Section 609 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 6-9