// CODE SNIPPET
7126.96.36.199.1 Minimum Thickness
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The use of Equation 7-17 is subject to the following conditions:
- The weight-to-heated-perimeter ratio for the substitute beam or girder (W2/D2) shall be not less than 0.37.
- The thickness of fire protection materials calculated for the substitute beam or girder (T1) shall be not less than 3/8 inch (9.5 mm).
- The unrestrained or restrained beam rating shall be not less than 1 hour.
- Where used to adjust the material thickness for a restrained beam, the use of this procedure is limited to structural steel sections classified as compact in accordance with AISC 360.