When the Tekla Structural Designer head code is set to United States (ACI/AISC), you have the option to specify the Concrete Design Resistance Code as ACI 318 and the year as 2008, 2011 or 2014. If you are using US Customary Units the design is then performed in accordance with either ACI 318-08 (Ref. 1), ACI 318-11 (Ref. 3), or ACI 318-14 (Ref. 5). Design can also be performed for metric units in accordance with ACI 318M-08 (Ref. 2), ACI 318M-11 (Ref. 4), or ACI 318M-14 (Ref. 6)

Unless explicitly noted otherwise, all clauses, figures and tables used in the Reference Guides are from ACI 318-11, these have not yet been updated to reflect the new clause numbering in ACI 318-14.

The following topics are covered: