Q111:§+ Fig. 11-18 Maxfm1. 111 Olmonslon-8undles of Bent Bars for Truck Oelive,y Trucking regulations in various states and cities often limit the maximwn lcmgth and width of reinforcing bars (see Fig. 11-18). Sometimes long,:r lengths can be shipped by rail or wate L Bending dimensions ofu:n govem the length that cam be tr. tnsported. f1actic. al con'-tr UClit)n limitation~ Otl (em orc1ne_bar ~ensch~ n':. a. <;! 3. l"o be con sidered cxce11t for slabs on grow,!'!, '. ong lengths of horizontal oors p19. i0!;!i!!g far beyond roquirtd con. structio. n joints arc g_cncrally un<lcsintbk. A 1:>pli. :c ai or n~ ct 1. :on. strui. :1100 ju int c, preferable Vertical bar lcnglhs in columns and walls are more severely res,ricted. In multi-&OI)' construction, column bars arc often one sta<y in height Howcva, with heavily rcinfonx:d col Wllll S and Slauc,cd locati Oll of splices, vertical bors can extend two stories in heigl,L In ltigh ws Us, vertical bars exiending fu U height are sometimes difficult to hold in position and may need to be spliced at one or more locations, either to su. it the Contn1ctnn concrete pl>Cing ni,ention. nr die location of the col Ull'UClion joints as determined by the 1:ngineer. Splices are Jw. attd, at construction joints belwec::n footing} ~ml <. :olur;ms or wrill!i. :wcc:11 oolumnl) bel C"M· and ab Q\c a floor, QC bct'-'tten \\<Jlls ;1nd floo. Reinforcing bars project lhrough the oonstruction joint and are spliced with other bars either by lap splices, or mechanica l or welded splices. In general, spliocs occur where the "1ruclural drawin& permit or where shown in typical structunl details. Jn vt:71:Jcal c:onsfr\letion, lb: erection of fon:ns prior to plac:ng_ reluforcement (i~mc~ in wall~ hould be co01'd1nattd witll lhe n::111 rc. ement,;plice tionoi., to provide a proper nlc. !n S of bracm,s rc:mforcieme ru as,1. ~11 as a n to place reinforcement withir. the concrere cover and construcuon tolerances. (~uns1rucllilli J o. in!uu:. p... Q. U. r ~Wan. : fl5)ffl\. J)ly locatcd..)yhcg $J>htcl>___Q_CS:U"" 10 the honzont,al or vertical ~-Splices at slab and beam construction JOIUL~ are generally gu Jded more by dcs,i;n n::quircmcn L 'll Tho Contnclor should take this into account during the Placing Reinforcing Bara-10th Edtion 11-19, 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 38 39 40 41 42 6-9