Transcript Steel Design BCN 3431 - University of Maryland, College Park
ENCE 455 Design of Steel Structures VIII. Simple Shear Connection
C. C. Fu, Ph.D., P.E.
Civil and Environmental Engineering Department University of Maryland
Review Bolts and Welds
Design bolt bearing strength ( L e ≥ 1.5
d , s ≥ 3 d )
R n
( 2 .
4
dtF u
) Design bolt shear strength – no threads in shear planes
R n
0 .
75 ( 0 .
50
F u b
)
mA b
Design bolt shear strength – threads in shear planes
R n
0 .
75 ( 0 .
40
F u b
)
mA b
Design bolt tensile strength
R n
0 .
75 ( 0 .
75
F u b
)
A b
Design strength of the weld
R n =
0.707wL(
F w
)= 0.707wL(0.75[0.6F
EXX ])=0.32wLF
EXX 2
Double-Angle Connection
For bolted connection (AISC Tables 10-1 or -2)
1 2 3 4 3
Double-Angle Connection 1a 2a 3a
For welded connection (AISC Table 10-3)
4
Double-Angle Connection (coped)
For all bolted connection (AISC Tables 10-1 or -2 w/ Tables 9-2, -3, & -4)
1 2 3 4 5 5
Double-Angle Connection (coped)
For bolted/welded connection (AISC Tables 10-2 or -3)
1a 2a 6
Unstiffened Seated Connection
For all bolted connection (AISC Table 10-5)
1 2 3 4
For bolted/welded connection (AISC Tables 10-5 & -6)
1a 7
Stiffened Seated Connection
For all welded connection (AISC Tables 10-7 or 8)
1 2 3 4 5 6 8
Single-Plate Connection
For single-plate connection (AISC Table 10-9)
1 2 9
Single-Plate Connection
1
For extended single-plate connection
2 3 4 5 6 10
Single-Plate Shear Splice
For all bolted shear splce
1 2 3 4 5 6 11
Single-Plate Shear Splice
For welded shear splice
1a 2a 3a 4a 5a 6a 7a 8a 12
Bracket Plate Design
For bolt bracket plate
1 6 7 4 5 2 3 13
Bracket Plate Design
For welded bracket plate
1a 2a 3a 4a 5a 6a 14
Eccentrically-Loaded Group
Elastic Method (AISC Tables 7-7~14 for IC Method) For bolt group
1 2 3 15
Eccentrically-Loaded Group
Elastic Method (AISC Tables 8-4~11 for IC Method) For welded group
1a 2a 3a 16
Single-Angle Connection 5 6 2 3 4
For all bolted single-angle connection (AISC Table 10-10)
1 17
Single-Angle Connection
For bolted/welded single-angle connection (AISC Tables 10-10 or -11)
1a 2a 3a 18
Tee Connection 5 6 3 4 1 2 7 8 9 10
For all bolted tee connection
19
Tee Connection 8a 9a 10a 1a 2a 3a 4a 5a 6a 7a
For bolted/welded tee connection
11a 20