Metal Deck Table File Format
Files of user-defined metal decks may be created using a simple text editor. Use spaces, not tabs, between data items. The file name must have the extension .DCK.
The file has the following format:
The character in the first line indicates the system of units used in the table: an E indicates English (US Imperial) units and an S indicates SI units.
Deck Name, Hr, RibSpacing, Wr, AcRib, Ybar, Profile Type
where:
- Deck Name
- the name of theHr deck type (19 alphanumeric character or less).
- Hr
- the nominal rib height (in. or mm).
- RibSpacing
- the rib spacing (in. or mm).
- Wr
- the average width of concrete rib (in. or mm).
- AcRib
-
the area of concrete in the rib per foot or per meter of deck width (in.2/ft. or cm2/m).
- Ybar
-
the distance from the bottom of the deck to the centroid of the concrete area AcRib (in. or mm).
- Profile Type
- A value of 1 indicates an Open-rib Profile (Open Trough Profile); a value of 2 indicates a Closed-rib Profile (Re-entrant Trough Profile).
Hr and Wr are used to calculate the allowable shear stud values per Chapter I of AISC Manual of Steel Construction (ASD and LRFD), Clause 17.7 of CAN/CSA S16, Clause 5.4.7 of BS 5950: Part 3: Section 3.1: 1990, or Clause 6.6 of Eurocode EN 1994 1-1. Rib Spacing is used to determine the practical spacing and number of studs along a beam. Hr, AcRib, and Ybar are used to calculate the transformed section moduli. See the following figure.
Note that even though the figure seems to indicate that AcRib is the area of concrete in one rib, AcRib is actually the area of concrete in the rib per one foot of deck width if in English units, or per one meter of deck width if in SI units. For example, if the table is in English units and the ribs are spaced 12" on center, AcRib is equal to the area of concrete in one rib; if the ribs are spaced 9" on center, AcRib is equal to the concrete in 1.333 ribs (1.333 = 12.0 / 9.0).
E ASC 3W, 3.0, 12.0, 6.0, 18.0, 1.604 ASC 2W, 2.0, 12.0, 6.0, 12.0, 1.056 ASC –24 HiForm, 3.0, 8.0, 2.312, 10.406, 1.568 ASC B-36 HiForm, 1.5, 6.0, 2.062, 6.188, 0.788 USD 3" Lok-Floor, 3.0, 12.0, 6.0, 18.0, 1.583 USD 2" Lok-Floor, 2.0, 12.0, 6.0, 12.0, 1.056 USD 1.5" Lok-Floor, 1.5, 12.0, 6.0, 9.0, 0.792 USD B-Lok, 1.5, 6.0, 2.25, 6.375, 0.794 VERCO W3 Formlok, 3.0, 12.0, 6.0, 18.0, 1.625 VERCO W2 Formlok, 2.0, 12.0, 6.0, 12.0, 1.056 VERCO B Formlok, 1.5, 6.0, 2.125, 6.375, 0.794 VULCRAFT 3.0VL, 3.0, 12.0, 6.0, 18.0, 1.604 VULCRAFT 2.0VL, 2.0, 12.0, 6.0, 12.0, 1.056 VULCRAFT 1.5VL, 1.5, 6.0, 2.125, 6.375, 0.794 WHEELING 3.0SB, 3.0, 12.0, 6.0, 18.0, 1.583 WHEELING 2.0SB, 2.0, 12.0, 6.0, 12.0, 1.056 WHEELING 1.5SB, 1.5, 6.0, 2.032, 6.095, 0.808 WHEELING 1.5SBR, 1.5, 6.0, 3.968, 11.90, 1.104 Flat Slab, 0.0001, 0.0001, 1.0, 0.0, 0.0