Civil Engineering Reference
In-Depth Information
11 Dimensions 3
Fillet welds - longitudinal
Dimensions measured along the length of the weld are shown to the
right of the weld symbol in both the ISO and AWS standards and,
in the absence of any dimensions, the weld is continuous along the
whole length of the joint. If the weld is not continuous and consists
of intermittent fillet welds, the weld lengths and the gaps between
them are indicated as shown in
Fig. 11.1
. This shows a perspective
and plan view as well as a cross-section, the latter indicating the leg
length and throat thickness of the weld in the example illustrated.
5
in
8 mm
16
5
16
8 mm
in
50 mm
2 in
50 mm
2 in
25 mm
1 in
25 mm
1 in
25 mm
1 in
6 mm
z8
3 × 25(50)
a6
3 × 25(50)
5/16
1 - 3
ISO (Leg length)
ISO (Throat thickness)
AWS (Leg length)
11.1
Dimensions of single fillet welds. ISO dimensions are in millimetres; AWS dimensions are in inches.
The symbolic representation of weld sizes and lengths, and the
gaps between them, is shown in the lower three cross-sections.
The nomenclature placed adjacent to the reference lines is shown
in
Table 11.1
.
Table 11.1
Nomenclature placed adjacent to the reference lines of intermittent fillet
welds in both the ISO and AWS systems
ISO (mm)
AWS (in)
z8 - leg length
5/16 - leg length
25 - length of each weld
1 - length of each weld
(50) - distance between the ends of
3 - pitch (centre to centre spacing)
adjacent welds
3 - number of separate welds
