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Steel Joist Manual

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ACCESSORIES AND DETAILS<br />

K SERIES OPEN WEB STEEL JOISTS<br />

SLOPED SEAT REQUIREMENTS FOR SLOPES 3/8:12 AND GREATER<br />

LOW END<br />

HIGH END<br />

High End<br />

Recommended<br />

Slope Seat<br />

Rate Depth<br />

d<br />

3/8:12 3 1/2"<br />

1/2:12 3 1/2"<br />

1:12 4"<br />

1 1/2:12 4"<br />

2:12 4"<br />

2 1/2:12 4 1/2"<br />

3:12 4 1/2"<br />

3 1/2:12 5"<br />

4:12 5"<br />

4 1/2:12 5"<br />

5:12 5 1/2”<br />

5 1/2:12 5 1/2"<br />

6:12 5 1/2"<br />

IF OVER 6:12 SEE BELOW<br />

NOTES:<br />

(1) Depths shown are the minimums required for fabrication of sloped bearing seats. Depths may vary depending on actual<br />

bearing conditions.<br />

(2) d = 5/8 + 2.5 / cos θ + 4 tan θ<br />

(3) Clearance must be checked at outer edge of support as shown in detail B. Increase bearing depth as required to permit<br />

passage of 2 1/2" deep extension.<br />

(4) If extension depth greater than 2 1/2" is required (see details B and D) increase bearing depths accordingly.<br />

(5) If slope is 1/4:12 or less sloped seats are not required.<br />

BARTLE HALL<br />

CONVENTION CENTER<br />

Kansas City, Missouri<br />

Architect-Engineer: HNTB Corp.<br />

General Contractor: Watson General<br />

Contractors, Inc.<br />

<strong>Steel</strong> Fabricator: Havens <strong>Steel</strong>, Inc.<br />

<strong>Steel</strong> Erector: Danny's Construction Co., Inc.<br />

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