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Structural Steel Dimensions?
- Thread starter dtwo
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Do you mean how the flange tapers from the web outward?That's a 2:12 slope, or 16-2/3 percent for "C" channels, and something different for "MC" channels. The AISC Manual should has that information in part 1 of the 3rd LRFD edition. I don't know about the radius.
The flange slope is as noted above.
The problem with the radius is that it apparently varies from one mill to the next- that's why they don't tabulate it. I normally come up with a radius based on the "k" values in AISC-ASD (for pictorial use). Note also that there is a radius on the tips of the channel webs which isn't tabulated anywhere. The "k" value is probably based on the largest common radius, while the tabulated section properties are probably based on the smallest common radius.
The problem with the radius is that it apparently varies from one mill to the next- that's why they don't tabulate it. I normally come up with a radius based on the "k" values in AISC-ASD (for pictorial use). Note also that there is a radius on the tips of the channel webs which isn't tabulated anywhere. The "k" value is probably based on the largest common radius, while the tabulated section properties are probably based on the smallest common radius.
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