2. Design of Welded Connections - Awssection.org

AASHTO/AWS D1.5M/D1.5:2002 DESIGN OF WELDED CONNECTIONS
Reproduced with the permission of the American Welding Society (AWS), Miami, Florida - 09/15/2011.
Single-bevel-groove weld (4)
Butt joint (B)
Welding
Process
Joint
Designation
SMAW B-U4a U —
GMAW
FCAW
See Notes on Page 43
Figure 2.4 (Continued) (Millimeters)
16
As Detailed
(see 2.12.1)
Base Metal Thickness
(U = unlimited) Groove Preparation Allowed
Welding
T1 T2 Root Opening Groove Angle Positions
B-U4a-GF U —
Single-bevel-groove weld (4)
T-joint (T)
Corner joint (C)
Welding
Process
Joint
Designation
SMAW TC-U4c U U
GMAW
FCAW
α
Tolerances
As Fit-Up
(see 3.3.4)
R = +2, – 0 +6, – 2
a = +10°, – 0° +10°, – 5°
Gas
Shielding
for FCAW Notes
R = 6 α = 45° F, H — 1, 9, 13
R = 10 α = 30° F, H — 1, 9, 13
R = 5 α = 30° H Required 9
R = 6 α = 45° H Not req. 9
R = 10 α = 30° H Not req. 9
As Detailed
(see 2.12.1)
Base Metal Thickness
(U = unlimited) Groove Preparation Allowed
Welding
T1 T2 Root Opening Groove Angle Positions
TC-U4c-GF U U
SAW TC-U4a-S U U
α
Tolerances
As Fit-Up
(see 3.3.4)
R = +2, – 0 +6, – 2
α = +10°, – 0° +10°, – 5°
Gas
Shielding
for FCAW Notes
R = 6 α = 45° All — 1, 12
R = 10 α = 30° F, OH, H — 1, 12
R = 5 α = 30° All Required 12
R = 10 α = 30° F Not req. 12
R = 6 α = 45° All Not req. 12
R = 10
R = 6
α = 30°
α = 45°
F — 12
Reproduced with the permission of the American Welding Society (AWS), Miami, Florida - 09/15/2011