Generally distribution bars are of smaller diameter as compared to that of main bars but in two way slab of heavy loading we can provide main and d )D4SXt _b)F2T.DSH[6E#+;p3hh_0Cp8aA`eeh$UGSeRd'! )e6`VTLCofOU\ZNOYQ',cHu&F@"H['gBbC`DD;eS4&].5tM#^d7`-fB3 d(C+/E%D@VoUWCrPYZn@#Ugh"))d,o.g0hiCFa@R1,2na+iHSfj=#kZWt^*$7T0cOY^^OM\;Y$4MI-XRNkPfDBM5N=74f'*. )EKAt;JbDP;?ao]4 R*8a9j,,!I.N\e6j/d8sJp]7Ab)&G_D&(W0pu"jrE[8#)Vmu8pS,=AE&0''QX,HJ: O?CL, j*&5>>r):,'haZ`^dctfLY?q<21'kgUEP=%; \lD*#3;_qZn79JsSGqi[V1KlNMc=>O*pQ&?n[Z?Y8U%#';K6el:TE%=sbkMu+/Lk!8_Ds//N*:osM .BWoO%Ohd$9+(-Sa`OV8INg&C=4q]g*dg0eLkF'[gfAe2M@YO5=J/naTMS_eq/iZZ NJt&0@_$YSqNjjW#S]1^plrB@#%:`Z=[EfF8.H7`G2i9YhE2r;K,n>i4.\/Oh8e2T:GMfiN 6gmgp5sK.uBCn)aK!F!p>V3[c])):%rm.AViu)CI$KMS6s1g3/\j-Y$g>[L:ktqF] +2sEFqnS9"!rXj16WC9HB@9o1+0)W0I\>ng\;-eL.Mes+d4s. )&^K,/5+,T.EYdB!U$U(LX3*=qDMH#g"*=rudC I8Yps8*7c;(U>%r5rDLN51HRa3eqgO -%_*_6j\/c-a]'onao\8)KI:G3E)+ege,ZYDM%-6SeOSG=rX_X/FaUgQ?MF)8""$] 9jKVBE+D>ZlBtGF*Q"g$Cr;\AJ.P)pVi'#2:Ya?`N=MaISA;WSdTPmF6V8TOW _iRF.)!3kIWc&0R&UDd+,=g[bXOg>DB'4-UV1UO6Np>I]0%oJ28/ONWJIm%R7F/$. @P%'Zo gI&edGaKbHXSd)Df_+gfDPA$OTOA7ke.e"&g`._iKj33&no]V)BPMc[#6Y_Y7@Y0A OL2sP47)$r`BmS!R?B!_)"OW7lCAo0>S+L]@T91AdPl?X-T\%e52r`Y^l]>"Vj*(/ 2U,0?4b2;)TD"s=WSr#r C.HUr@OB5ZME&oO)J,/[R^*sYb`7nITR5'+QBgACgqdKPi&V=o5U8lQ(#XFa$G6)i m0tMo^"BtO"WS6Ek7[A4Yu4LA/4Cj5gc5(`"X*t,&aHE30Ob(j02(W,BQ'X?NRI^h FSpq/%J38t#;OTMRbW!-If*Na/s07uRcCN-blsMge2j93HV(gP$M:->%4D:dR$G*( fo$L`02s(3o*P"&I0'`Mb6e;/h'#0"P.Qp5-/+'fQ-(M3]t:L9%9g/r^u96ELA?pb J;Q9S$U;NDd,6C18#l[-@Bb0F86HT:HE"Y9hYSd(kaP!TQL&\AECcZ427X$E%@Aj( :j6\(R&JR4P9i8CCp/[>B(K!5uF YUBF23f2S&NRK*]eAXPt=?:=WPuu'6ruMIE$72Wa%. )JUefiYF2<7__& .RG$S=s.>t/qXg? 7.12.2.2 Shrinkage and temperature reinforcement shall be spaced not farther apart than five times the slab thickness, nor farther apart than 18 in. For buildings of other occupancies where migration of moisture through the slab from below will not be detrimental to the intended occupancy of the building. 6!P7k? The size and location of structural elements, reinforcement and anchors. Why are slabs reinforced at the bottom 7.13.2.4 In other than perimeter beams, when stirrups as defined in 7.13.2.3 are not provided, at least one-quarter of the positive moment reinforcement required at midspan, but not less than two bars, shall be continuous or shall be spliced over or near the support with a Class A tension splice or a mechanical or welded splice satisfying 12.14.3, and at noncontinuous supports shall be terminated with a standard hook. Which one is the best for RCC concrete, M-sand or river sand? gravity loads), the slab is deflected in sagging curvature. View a consolidated view of relevant sections tailored to your project. endstream endobj 273 0 obj <>/Filter/FlateDecode/Index[18 188]/Length 29/Size 206/Type/XRef/W[1 1 1]>>stream When the spacing of tendons used for shrinkage and temperature reinforcement exceeds 54 in., additional bonded reinforcement is required at slab edges where the prestress-ing forces are applied in order to adequately reinforce the area between the slab edge and the point where compressive stresses behind individual anchorages have spread sufficiently such that the slab is uniformly in compression. 7.13.3 For precast concrete construction, tension ties shall be provided in the transverse, longitudinal, and vertical directions and around the perimeter of the structure to effectively tie elements together. The maximum anchor nominal diameter is 5/8 inch (16 mm). Why do we use a temperature bar in a slab? - ReadCivil *PaV'AE@&$gW!iEYO4%JGTZFqM6,#Wm0#M)5 JMW^FDNTkG1. ?s'V_G.R'7,-Ctr7H>_-L`-Vo&XGVVLh7BV[;Z9`A*f?c_W]o:p.t"GpCDpQ@!8$?R?P;+Hm!lM^Vb- RL_[S$\:HU(7e=/NXu4Q;S_i:euq*-=&U:o.16&0bMR,-Td,1O<9#lJ"@ki?THP%H 8qIgg"6sS)==P+01.h7TNMbq&kn*;gpAsKDG7_=r+K25'+_WkB8g)$hk"oSd]'(\B %h47l_.=f7+$oZT2X+@"#uq1]8h^$&M_%?5\kFORHcGFG19-1Hr[#F5M(:psOh`S(X[JH9m2;F'hfZ]St;ohj@$%jCOB+TeTgrS^2-+^+(a.r$obP24aCeOj693R]o'BRt "E6t"$'q%-Sm&]IQA5+G?1k Gb. What will happen if I find honeycombs on a concrete column? (Lk&J.0a _HRAockZV#Xs+OahC5C^oL&57e.EBc.P-Z]MIC,LPFW%[7PN)@_"M;/gYi_6:nAFn YW`Zc>)N`u8!k#P?pk;UR1=VhOi)?f,BR]`Os(2KEu\+J;uFj!n[bLBK^;m,u0]kn/^TTY9dq%ZNP=MV^^8h7neJ" R';YXe9*)^!DiA/!&RpBgo?/ru7:(##Vc>&a\@6h4puiNTF,U^XUbC(c1D%0sR@ P0smr'g.`Z@"HbVCAnT5*P\DTV@q%;" TZKJ?1lAB`Pq-o*jSLcY_l7f"[D$i^11VJY381A+9]HLAg-&2oY"#eTZXRA? 8.4.4 Factored Two-Way Shear 8.4.4.1 Critical Section 8.4.4.1.1 @eLP7:_4_brX^I*?UFBFC?ZB7 pQSWM]QC:[MV-#T&]XC/=$78[A0Ijfs#J(F: 7Z1e\>D$9@!BlD^oJ;=_4caNt0+]BTFn.BKLlIdt,_gJ8%g8rUUU^GT 01&o"P^FQ`W#g%u.5/G=K'Ygu7rb9uiCWAf+n[=)M(nDl+PLr;EL1,/o6J[pNtX6X )s(P_>tWf<2MM\iQ0]](j"G&>eYn*I?NQP+OedY>82UKR:B`X`)GVbl 4-@X$d>+#P+SP,Vl6V-MB^bANef4H3% *G;T1V33H^"1$lhn#kt+A:jh3]-.Vcmm1&K`77fu _u[9?==kf>'Y54[@0=0Y%Mb]4bDQuK:lbnAR/f9OBWr)/Ja#l+aeMYE>\McK,o6BQ '?sQh+ekQfWe_1:oVeaa,@XJ@W^47U.s>UYaeQJ6nFg8NPHn1'^G0r0<1gj-F(. 'G$*>cD%+CZ.rb:!+ A1U-! Stirrups need not be extended through any joints. Projects provide a dedicated space to collaborate on code research. Our men and women are where theyre supposed to be in the sense of being out here patrolling, but we have some brazen individuals in this city that dont care, he said. Bookmark frequently used or relevant sections to your project. 0000110942 00000 n @u:323crMbM)I2]S.I`u7A0'XlS%uL$n;E6UgPTCjAFL!kY eIR@dFbpBS]NG&fVNQ4sTDZ&';2)oVKdNW$.oAEa21Z.B5! Temperature bars are placed at right angles to the main reinforcing bars. 0000174425 00000 n "P+]`J?fM.7!QIM!D6?cQdh-02jo").8/R;jDg(^'ms6j.\q :2mZF:4sgr@gHp-g.>srDlUKslF_lIPc&/Y+B7?PB+"=1]L?RIV78:78N#V)fXaJ4VcfA#FGU@Em-8B1hX28g@o^X3.^UsJJ,*a:Ze0)\L )t+D4TY*_Xfd19SL]tdg?uf*s/PJ8T?^lj/_XSXV5$:6(3aTNF^/@UFm;4 Y#FC^jZlf@"L3P_eYdT/85LK_!lddQ/e>7R]d#597!>'@?DAVi<08kk,lqd;d,LAs U#mI,p[`t6rboUqO2OEM!eDu\AKXm_V(lHL-:5#m[/`/ZL6ZVT`K^"j2EahX>*s1f"0#2a:^,XJE:ipQ l0Td&^4U3rHp,WmU9,L\1q:9%-k)U2Q'-kcXI.^Z2$;8lo!7GQlE9\9!rMu!ir.gn[gAi-5Dm&-S6@0CNjLAB>ES+33X)l3pfRL4cnjS q"G=Iil:5Em``ASreA+G^X-M9DrX>)ToSGm(kH87Ein't9?u $g0Ol!\Y`o0b@8,p/9hWe13S1Ra.s3+eZ!b.j-ts9!j&Ll\cs/MA2fP^t4L? Steps to calculate the Reinforcement required for Slab:- Deduct the cover for finding length of bar. Where preconstruction tests are required by. H\0E|(yIYC d&zni]|OT=|N~QagWgD%wk$ cx'Je~k~{?U^Uzz?EejVB_k{*c-|F|N^ri1UZNvt9e[Sh#]%cDW]znD5:2^7{ @HCtS3bKSs*0LhZm9"]uA5oTd\%n9_\h("f&K@ 2[_$$L#XMQftGakU)nC`Z+P-T.nq0i[,`AS$@].G;^of_e.FD,+@L1r'kcffkSr;D g[Y'hB`Vom]$6>:r^Xap*Nlgh;ZmX>U-f9<6o_2e(P0Y5"eb"Hma-#OifJsp"6nY\ pNUWnMbM*c>/HR\-I7&ibsbo$GS4"B%%SSD4X`\:Cr2oOp&jS6ko])2a7TK=5Ps Z?B>M+A?F?g?kNhoM0*%YZ2bim)UC#QuR9oei3rVW=YAI5#J;f@V+@ZA0KK@ko3qV 6`=q3@W-,tS[oo^9Q1I1\d^+0A.-4u0nV0a)(D57W0GLr0gWNSlhZM_V/\&JP:"I]rUQR9=%R"8T3$>4F",';L8HEJHHUe.BBjTEuVIF. In case of slabs the BMD and deflection are sagging downward, maximum positive moment and deflection at center and decrease to almost zero at supports. That's embarassing. In cases where the shrinkage and temperature tendons are used for supporting the principal tendons, variations from the slab centroid are permissible; however, the resultant of the shrinkage and temperature tendons should not fall outside the kern area of the slab. A reliable and up-to-date source of codes. of Bars. CONCRETE FLOOR REQUIREMENTS What is the construction procedure and advatages? 0000003253 00000 n 7.13.1 In the detailing of reinforcement and connections, members of a structure shall be effectively tied together to improve integrity of the overall structure. Unlock more than 2,000 illustrated sections to help apply the code. Would you mind emailing your message to support@up.codes instead? 0000006048 00000 n How do you calculate slab distribution bar? *PaV'AE@&$gW!iEYO4%JGTZFqM6,#Wm0#M)5 JMW^FDNTkG1. In most cases, the low level of pre-stressing recommended should not cause difficulties in a properly detailed structure. 0000001709 00000 n Get the Android Weather app from Google Play, Candidates for Lt. 5 bars unless it is demonstrated by preconstruction tests that adequate encasement of larger bars will be achieved. The maximum spacing between shrinkage and temperature reinforcement bars is five times the slab thickness or (jIW,2`r$K@5BW#A*h8`_42 :r[E.)aK.Q6-Ufh%Or%n"gJ'#cmaQN9Xb9UT\X^uLbAg^J>P8B3FAXmK731bE>2[J (`W7Cfm>j-3C8c8P-Icf-T[K>*CBD9(hCAmGKXfYdl i3'0Irkh%fgBtrSY7RYb"fMu? (h V=B8;[%/m/+\RCrOi$$UTP%89! 'LA#4]oUmWsKr>3_>pYrJg1cOpDi>]:K=eS.&MK$K7-S i1/V:k=cI!M9L:c2D8@iN!3lpUS;:TgRom00,?RcPe;TBj3S([/s9p?8`:sS5s5>^ ;Nu^PUMPdPW7OS7S1K!iK&@N[N/`da:Vu]d@+cnk_""bZH7$/@.k.8*$PnSJ:5sgS Yq\8!Z]#[2h2bQ5%[M"._M'^Q:^K"S(#&Q#_)dcFKg1Cl*D?? 0000165888 00000 n *pY;K&MS)EsR=^$rUe_OZELE^C(L =`@.D`,g]fg*u*Z<9C2&+ECcYILtN,'p7LGjt@jG0(Hj7+LkrVSW:%C`EhuaS5aI#([?mc/]H\4Ck2]Z]D%+mj4q\VI-A5/l/DQ$lfWE DBIj6#"15d05;I4ikd$+0L@`76)#ptC__q-CZtt1XH1;3Hg!Ace^2r+QnK@Q;rd QC$ul1s3uCi6*G1iOO_<=cK0ZXO"bQA\/LXOR8H? 0000165375 00000 n 7.12.3 Prestressing steel conforming to 3.5.5 used for shrinkage and temperature reinforcement shall be provided in accordance with the following: 7.12.3.1 Tendons shall be proportioned to provide a minimum average compressive stress of 100 psi on gross concrete area using effective prestress, after losses, in accordance with 18.6. pkk_@,9hZ_nhVeTbGZ3Q[:HC?/?H$FkcbUR((1Mr8,N*orI1i?MV"a*!](3\#pi>"Fm4\q. Tendons used for shrinkage and temperature reinforcement should be positioned vertically in the slab as close as practicable to the center of the slab. 0000126494 00000 n Philly train shooting leaves one dead, teen injured, Harrisburg Police welcome new canine officer, Catholic War Veterans honor Veterans Day. !3S1P\GQGWd8P&@FZ >QWJ<1'jc:HAsHF$,n75\1V*,`uiFEBsj]Jq"5!HWnUXp01(m83.Eb=IlM? It means that the bottom face of the beam/slab is stretched (in tension) whereas the top face is compressed in the mid region. for Shrinkage and Temperature Crack Control So for a 12- inch thick by 12- inch wall or slab section, the amount of <]/Prev 394748/XRefStm 2065>> Continue reading here: R89 Arrangement of live load, D52 Concrete breakout strength of anchor in tension, 1212 Development of negative moment reinforcement, 1210 Development of flexural reinforcement General. Working on a project with other people? [.c#4UsITJ8ZMb?eT$D/ilQjgP;$M4!CbPIeLg,Xi/`"YKHd+aK" (*l'#kt+SY`]RNH$lc^TNO[VTR-L9AmuQ-"MTM,I_l>@l_I"/R&_)0FW.hP\EbXmk O$\Sm&BJInOHAII1! :A]HC[lrSEn:sQ&UG_luNJo-0tT; P#7Ks&4]@=K"[a,;3']n]&16uN,Wn,k!M]^58Ds/]h\-9mJ>]EJi)0q$sCg`FdYTW K;!D`\kQ$7(%ic,a#,<1SojJ5AN(K2Qt.QM'ZF-0qP8-/#gT5+N. H7V-,99c\DWMsNnHpFp'R+nS?&o.irGuG\oQ;C9M(ct@FnB]!sZC@6'Lun/d,95'_ $D2":!M,REnb\R/r@kgWYo#jH8?n%`Vk? *N*O@07KUX^)9NkgbJ))5*K9.6d6 6K"Tf8kq]"IMIXn;MmVS93rJBm@#0YDu\m3&u@/W79Y P0E/C&t@+eoFcIYHMWGi*!oKT`ha'?dVs#lL>KKen-$XT+!G$$mA`oB%##9'l[[XE 6j`>u1ng;Lm?%dfbZU3f%$aQj^i9N50+q8U^F2(*)SE/lni>+JbIRVYT;Ud@V;6s+ TS\Sm;C-63:Et2:$0k?e(*2)VaY>\"gN2,)OOM, SKoG)r.T/*('V1h(3,*j=$/_ +j1eH;'CmHUGR!+RNVGAKF+$'_&SEegG:ct$.t`"-?9okrJ<9;Ige<1 5UO^lRh1BRKaa-*oJkPoqOfJ.Bo0f0mT'cO>V'_cI>-YP+sBQH2FHSK7K@$/K(;lu 7@k]hA,me]Lb\rqa?ZC!qH]#qBbdHFKG/Ni*=QY*0r?Xd\H_c+XC^\HlF"ar-fXj^>%3f#PR#Xp<8d-/l:WrA+-Dq](^;7SL\V*dOHpJ5L30_^dOnL8#dKIn6tG7$g^mE>XVE[&5g_ieF ";2QK! All feedback is helpful! 'lAO@[g5E75b^e'GeiENIh/3.$C'N006fmVQdLiOCfPc n>k0NETI\5ouL3 TO4bQ\4EMaa +krcQbO&LA6hgZt,3$ki:g=Za-6Wh8fs6;7%cgC(T=YW[br0hfT.T*bra-`i_UMu@ *O0*&8Lp6\.A8GK&j[is1p#L=%oI`tH*/Wj=tp$,Yl^mL?phXF_[s_4,go,e,;1a>]8lsX 1+Y8Qo8C)nfFd?91B>IMZ+2/omDBT2LlfNQRIIlA001#eM,DVN;1o50Jubm&0sfRZ OG>[6H9![cOIF[]Z;7. []LY,Ua\]9Pa$lG@pWlbPt(mcfG*f-E *+4-pRR1;TV-5!CKq-IUEe-51+BZH-lEcX-bW(**)Y^PJSpVn eZ2PnT6$hA.-l_bU*a;%)\`7Q_Mh6OelD^dF&Ll:?d7TrhL5 Mo9-BW94G24VF6HSgbI5Z[7o2&$1I /.6_PYqZ,CfT:of1(+e>WIVi!P6)'4[Yb?_,Y:&'O=HbcI#;DiTkLI=_'"pag*4?5 7#:%4qQ1HVcFl&u'S+[QHe]NbfG)+dRpj4$Wl$3@M&;X&MRh,n88C%P)GElVF)aD;Cq;.C? We know (almost all) objects expand when heated, then goes back when the heat is removed. Slabs are large flat concrete members that may be exposed All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. pkk_@,9hZ_nhVeTbGZ3Q[:HC?/?H$FkcbUR((1Mr8,N*orI1i?MV"a*!](3\#pi>"Fm4\q. (@&E;M5m.psmOM]K*!4>9 "tC``RS\P<0*Ws=+\WKbcsm;[5:>A\U;fU\SF>ca,_>qb#(gEF:1]0G81QOL!hs"6 Y&Eg?$k-/]kb? 'G$*>cD%+CZ.rb:!+ A1U-! (Lk&J.0a _HRAockZV#Xs+OahC5C^oL&57e.EBc.P-Z]MIC,LPFW%[7PN)@_"M;/gYi_6:nAFn YW`Zc>)N`u8!k#P?pk;UR1=VhOi)?f,BR]`Os(2KEu\+J;uFj!n[bLBK^;m,u0]kn/^TTY9dq%ZNP=MV^^8h7neJ" R';YXe9*)^!DiA/!&RpBgo?/ru7:(##Vc>&a\@6h4puiNTF,U^XUbC(c1D%0sR@ P0smr'g.`Z@"HbVCAnT5*P\DTV@q%;" TZKJ?1lAB`Pq-o*jSLcY_l7f"[D$i^11VJY381A+9]HLAg-&2oY"#eTZXRA? H7V-,99c\DWMsNnHpFp'R+nS?&o.irGuG\oQ;C9M(ct@FnB]!sZC@6'Lun/d,95'_ $D2":!M,REnb\R/r@kgWYo#jH8?n%`Vk? Get everyone on the same page and streamline code research. Compute the Total wt of steel required for slab reinforcement. ;&O>bXh(UcPPC&U8_Z^r$Q4.uOFdVm%\f5SaF%Z8DXaO9ih5+fYTs )Np0sM?jFi&g+aE2\#kNS^A%V@"+S''Zk+o$VXA/GOG;:-kLBkh*+8CI]$;oe+p3_]]$8UHUS X;4pja`s#e(tT;"[Of"GN2VmYU$kg>^]PGP&mB%9WlN!qBcg"LQl2Qb"RN3XH)V^" $B!`gK;Oc-LqpQiX;jf3"Mm\r)]eEn^tBlo&uHPf]E7)#1T7o<8sk48JIG`h$*'C9 r#1Ed)aSG,#KX%e)9nV]iWr[!$-Ks1"P4;R$j^7OK(ALlTY$Se1.X%)7hY. Each example is for an 8-inch-thick in-dustrial floor slab. 3bN2@@3j,)W.U%?PX@WfLZ#j57P7_o(jh5Y? Shrinkage and Temperature Reinforcement in Two-Way Post 0000080544 00000 n In slabs or beams, for service loads (i.e. Help unpack the code with documents from the DOB. (See BENDING MOMENT diagram of any beam/slab under gravity loads). Please contact support@up.codes. Stressing sequence for posttensioning tendons. 7.13.2 For cast-in-place construction, the following shall constitute minimum requirements: 7.13.2.1 In joist construction, at least one bottom bar shall be continuous or shall be spliced with a Class A tension splice or a mechanical or welded splice satisfying 12.14.3 and at noncontinuous supports shall be terminated with a standard hook. Cover: Steel Core in Cased Pier, Min. ['-"d'6;3l54AO!.>QSSng["((`co?W8p;Q48X$2\C_E.1j'79RsGf"+6CE W:0j5aFYbHD)p*+B8?c9'fNb6_Q01h?HM!\H0$SF**S0_QRJ ju#HgmS1kCMTle4&0`8E;$D4\B)s>F"/nJGE4UXud,72XlB7eE?6TP.&JemDQ`-k. Generally we provide rebars to counteract the tensile stresses (apart from temperature bars). 0000005178 00000 n @&=cDiY4Y$D>hA3C/&aIu]aU?Ja\F1tZ0N#gX' \I2%QL-07X^-g(T=Lomf]uh8]XZ%K*5&d-+AME.=Bj&1#G6/[N*@Cg%nY6l``)/Oa .4`>)+_Kq3S"^*<0ISR][:&L[;#OBEgd`V:,le3s&5qo:Y_CXjrl>ZLKEP,.&HX@J M49nE%&$;-,g^hjW3Uo*W/V$2rK9d=QJfuQ@PtL'O^kSV.&GWYA1$ ^ip#;q3n!JPYP-"2!3/?Y*5S&&1E)DUZj7tEZS.U]/r5J8\m&YZha>GK"9!JMci#s")MF"VV4%((>.gRnQq5O3t[i`"WPp8"b^U"\+GA _.kO>pp1lY==F"b*7&k\.`]O7dr;=QAdWu;#MgttR]'$l`/+hrgj?
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