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Bolting

Bolting. Shop-Fabricated Pieces. Steel is prefabricated. Shop-Fabricated Pieces. Steel is prefabricated Welded plates, connection angles, and holes are done in a shop. Steel Erection. Steel is prefabricated. Steel Erection. Steel is prefabricated. Steel Erection. Steel is prefabricated

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Bolting

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  1. Bolting

  2. Shop-Fabricated Pieces • Steel is prefabricated

  3. Shop-Fabricated Pieces • Steel is prefabricated • Welded plates, connection angles, and holes are done in a shop.

  4. Steel Erection • Steel is prefabricated

  5. Steel Erection • Steel is prefabricated

  6. Steel Erection • Steel is prefabricated • The steel erector’s job is simple: lift and bolt

  7. Steel Erection • Steel is prefabricated • The steel erector’s job is simple: lift and bolt

  8. Steel Erection • Steel is prefabricated • The steel erector’s job is simple: lift and bolt

  9. Steel Erection • Steel is prefabricated • The steel erector’s job is simple: lift and bolt • Simple

  10. ASTM Bolt Types (AISC & NISD 2000) • A307 – Low carbon steel – “Home Depot Bolt” • Silver color • Not commonly used

  11. ASTM Bolt Types (AISC & NISD 2000) • A307 – Low carbon steel – “Home Depot Bolt” • Silver color • Not commonly used • Group A (incl. A325) – High-strength medium carbon steel (above left) • Black color • Most common bolts used in building construction • Group B (incl. A490) – High-strength heat treated steel (above right) • Cost more than A325’s, but are stronger so fewer bolts may be necessary

  12. ASTM Bolt Types (AISC & NISD 2000) • A307 – Low carbon steel – “Home Depot Bolt” • Silver color • Not commonly used • Group A (incl. A325) – High-strength medium carbon steel (above left) • Black color • Most common bolts used in building construction • Group B (incl. A490) – High-strength heat treated steel (above right) • Cost more than A325’s, but are stronger so fewer bolts may be necessary

  13. ASTM Bolt Types (AISC & NISD 2000) • A307 – Low carbon steel – “Home Depot Bolt” • Fnt = 45 ksi • Group A (incl. A325) – High-strength medium carbon steel (above left) • Fnt = 90 ksi • Group B (incl. A490) – High-strength heat treated steel (above right) • Fnt = 113 ksi

  14. Common Bolt Sizes • A325 and A490 bolts: ½”, 5/8”, ¾”, 7/8”, 1”, 1-1/8”

  15. Common Bolt Sizes • A325 and A490 bolts: ½”, 5/8”, ¾”, 7/8”, 1”, 1-1/8” Most Common

  16. Hole Types • Std = 1/16” big • O’size = 3/16” big • Short Slot • Long Slot

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