Stud Criteria
There are several stud criteria that can be inspected or modified using the command. These include:
- Maximum % of full composite
- Minimum % of full composite for short spans and for long spans
- Maximum number of rows of studs
- Minimum flange width for 2 rows of studs
- Minimum flange width for 3 rows of studs
- Maximum stud spacing when deck is parallel to the beam and when it is not parallel to the beam
- Stud Distribution (uniform or segmented)
For AISC 360, a Stud Placement option that affects the calculation of Rp (See Technical Section) is available. In AISC 360-16 Sect. I8.2a (and similarly in AISC 360-05 Sect. I3.2c), emid-ht is defined as "distance from the edge of steel headed stud anchor shank to the steel deck web, measured at mid-height of the deck rib, and in the load bearing direction of the steel headed stud anchor (in other words, in the direction of maximum moment for a simply supported beam)."
Section I3.2d(1) of AISC 360-16 includes a requirement to consider the effect of the ductility of the shear connection. The Commentary to that section gives an acceptable approach for satisfying that requirement. Refer to Shear Stud Connectors for more information on the implementation. An option is given in the stud criteria to Enforce those requirements; the option should be selected unless the engineer intends to verify conformance to the requirement using some other method.
For Eurocode there are options defining conditions for use in the calculation of kt,max. See Table 6.2 of EN 1994-1-1:2004. There is also an option to apply the stud capacity rules given in the SCI Publication P405 Minimum Degree of Shear Connection Rules for UK Construction to Eurocode 4. This option provides an alternative method for calculating minimum partial limits, and impacts the minimum composite value and potentially the stud capacity (if there are two rows of studs) and the deflection calculation. The option will override the corresponding requirements found in the Eurocode.
An option to Use bare beam or Composite beam capacities when a beam fails minimum composite requirements is provided.