Sheet1DEVELOPMENT AND SPLICES OF REINFORCEMENT ACCORDING ACI318M-08, CHAPTER 12 M. Abushady:This sheet created by M. Abushadyfor comments & notes on it. Send an e-mail to m.ali.abushady@gmail.coma- Tension Development Length Calculations According ACI 12.2:fy420N/mm2fc'35N/mm2t1.3For Top bars (Min. 300mm concrete Cast below), ACI 12.2.41.0For others, ACI 12.2.4e1.0For uncoated and zinc-coated (galvanized) reinforcement,, ACI 12.2.41.0For normalweight concreteLd for Bars dia 20 mm :Ld=ACI 12.2.2=54.3 dFor Top bars (Min. 300mm concrete Cast below), ACI 12.2.4=41.8 dFor others, ACI 12.2.4b- Compression Development Length Calculations According ACI 12.3:

Ldc = max of= 17.0 dACI 12.3.2

= 18.1 dACI 12.3.2=18.1 dand not less than 200 mm, ACI 12.3.1c- Tension Development of standard hooks length Calculations According ACI 12.5:

Ldh == 17.0 dACI 12.5.2and shall not be less than the larger of 8db and 150 mm, ACI 12.5.1

d- Tension Splice Length Calculations According ACI 12.15:

e- Comperssion Splice Length Calculations According ACI 12.16:For fy 420 MPa== 0.0 dACI 12.16.1

MINIMUM DEVELOPMENT AND SPLICE LENGTHS (mm)Bar Size d (mm)TENSIONCOMPRESSION LdHook LdhClass A Splice = LdClass B Splice = 1.3LdTop bars (Min. 300mm concrete Cast below)LdcSPLICELdClass A Splice= LdClass B Splice= 1.3Ld10338170338439439439571200298124062044065275275276862173581447323947361561561580025341716541273541703703703914289477186093076097917917911028325537206763416768798798791143361596251044426104413571357135717644527462811694771169152015201520197650683532133654513361737173717372258578954

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