1

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 erectors job is simple lift and bolt

7
Steel Erection

• Steel is prefabricated
• The steel erectors job is simple lift and bolt

8
Steel Erection

• Steel is prefabricated
• The steel erectors job is simple lift and bolt

9
Steel Erection

• Steel is prefabricated
• The steel erectors 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
• A325 High-strength medium carbon steel (above
  left)
• Black color
• Most common bolts used in building construction
• A490 High-strength heat treated steel (above
  right)
• Cost more than A325s, 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
• A325 High-strength medium carbon steel (above
  left)
• Black color
• Most common bolts used in building construction
• A490 High-strength heat treated steel (above
  right)
• Cost more than A325s, 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
• A325 High-strength medium carbon steel (above
  left)
• Fnt 90 ksi
• 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
• Osize 3/16 big
• Short Slot
• Long Slot