— David Wagner 2007/08/08 09:09

Blocking refers to notches cut in steel beams to provide clearance around beam connections.

Fabrication Tolerances

• Depth: ±1/8”
• Width: ±¼” - 3/16”
• Length: ±1/32” (end contact bearing), ±1/16” (≤30') , ±1/8” (>30')
• squareness: ±1/64 in/in of depth and flange width

1. W20 x 124: wide-flage beam, 20” depth, 124 lb/ft
2. C10 x 25: American standard channel, 10” depth, 25 lb/ft
3. S24 x 100: short-flange beam, 24” depth, 100 lb/ft
4. L6 x 6 x 5/8: equal leg angle, 6”, 0.5 lb/ft

”[T]he erection deck cannot be more than eight storeis above the highest completed permanent floor.” [Text pg. 438]

Tension control bolts are more likely than conventional bolts to be installed with the specified torque.

Weld quality is determined by, “visual inspection, destructive testing, radiographic inspection, ultrasonic inspection, magnetic-particle inspection, and liquid-penetrant inspection.” [Text pg. 446]

The yield strength of A36 steel is 36 ksi.

Series LH open-web steel joists are designed to support uniform loads, span up to 96' with a maximum depth of 48”, use steel with a yield strength of 36 or 50 ksi, and have parallel chords or the top chord is pitched. [Text pg. 437]

High-strength bolts are identified with ASTM standard markings. [Text pg. 443]]

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