1. FRAMING CONECTIONS
Session 3

2. CONNECTION TYPES Shear End-Plate Double Angles Single Angle
Shear Tab or Single Plate
Tee
Seated – Unstiffened and Stiffened

3. Requires Beam to be Cut to Exact Length Comments:
SHEAR END-PLATE
End Plate
1 1/4" Minimum
Edge Distance
Note
: End Plate Thickness Range is 1/4" to 3/8"
Advantages:
Simple – Few Parts
No Holes in Beam
Disadvantages:
Requires Beam to be Cut to Exact Length
Comments:
Not commonly used in US; very common in Australia and Europe

5. Double Sided Connections into Column Webs are an Erection Problem
DOUBLE ANGLES
Horizontal short slots
may be used in angles
2 Angles
Advantages:
Beam Length
can Vary
Weld or Bolt to Beam
Disadvantages:
Double Sided Connections into Column Webs are an Erection Problem

8. Not recommended for laterally unbraced beams.
SINGLE ANGLE
Bolted and Welded Alternatives
@ Top
Return
Advantages:
Eliminates Erection
Problem
Fewer Parts
Disadvantages:
Larger Angle Required
Larger Bolts or Weld
Comment:
Not recommended for laterally unbraced beams.

10. SHEAR TAB or SINGLE PLATE
Advantages:
Simple – Few Parts
No Welding on Beam
Disadvantages:
Stiffer than Other Types
Requires Careful Design
Comments:
Two design models available, with very different results.
Single Plate

12. UNSTIFFENED SEATED CONNECTION
Advantages:
Few Parts
Few Bolts
Disadvantages:
Requires Stability
Angle
Limited strength
Comment:
Commonly used to connect to the web of a column.
Alternate
Clip Position
@ Top
Return
Seat Angle
2"
Stabilizer
Clip
4"

13. STIFFENED SEATED CONNECTION
Advantages:
Few Parts
Few Bolts
Disadvantages:
Requires Stability
Angle
Introduces a Column Web Limit State
Comment:
Commonly used to connect to the web of a column.
2"
4"
Alternate
Clip Position
Stabilizer
Clip
Seat Plate
Stiffener
Optional
Trim Lines

14. DESIGN CONSIDERATIONS
Ductility Considerations
Angle thickness < 5/8 in.
Wide gage
Wide vertical weld spacing with minimum horizontal returns

15. DESIGN CONSIDERATIONS
Beam Length Tolerance +/- 1/4 in.
To accommodate:
Setbacks in calculations are usually 1/2 in.
End edge distances are taken 1/4 in. less than detailed.

16. SHEAR END-PLATES End Plate 1 1/4" Minimum Edge Distance Note
: End Plate Thickness Range is 1/4" to 3/8"

17. Shear End-Plate Limit States
Beam:
Beam Gross Shear
Coped Beam Flexural Strength
Web Strength at Weld
Weld:
Weld Rupture

18. Shear End-Plate Limit States
1. Gross Shear
2. Net Shear
3. Block Shear
4. Bearing and Tear Out
Bolts:
5. Bolt Shear
Girder or Column:
Bearing and Tear Out 1 2 3
4, 5

19. Welded / Bolted Double Angles
Gross Shear
Net Shear
Block Shear
Bearing / Tear Out
Bolt:
Shear Rupture

20. THANK YOU